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1. Mask index Display description Description Default UOM Values odulating 1 Generic modulating 1 AO position 0 01 06 Efe29 Type Type of output PWM phase control for generic modulating function FCS1 CON FCS1 CONVONOFF yp 1 AO line 1 VONOFF MCHRTF FCS3 CONVO10 Status display only Generic modulating 1 output value 0 0 0 100 0 DI ChillBooster fault DI position line 1 01 18 B1 B10 Status display only Status of ChillBooster fault DI line 1 oa Closed Open Egaa01 Logic Logic of ChillBooster fault DI line 1 NC NC NO Function display only Status of ChillBooster fault line 1 Not active Active DO ChillBooster DO position line 1 a 01 29 Status display only Status of ChillBooster DO line 1 Closed Open Egaa02 Logic Logic of ChillBooster DO line 1 NO NC NO Function display only Status of ChillBooster function line 1 Not active Active Device present Enable ChillBooster function line 1 NO NO YES Egab01 Deactivation when fan Fan capacity under which ChillBooster is deactivated line 1 95 0 100 spower falls under Before the activation fans Fans work at maximum capacity at least for this time before 5 min Oto300 Egab02 at max for C
2. Mask index Display description Description Default UOM Values Modulate speed device Modulating speed device for first compressor line 1 None kg NONE INVERTER IDOS DIGITAL SCROLL STEPLESS Compressors sizes Compressors sizes line 1 SAME CAPACITY SAME CAPAC amp SAME STAGE amp SAME STAGE CONF 1b30 CONF SAME CAPAC amp DIFF STAGE CONF DEFINE SIZES 5 Enable size and size for compressor group 1 line 1 YES O YES 10 0 kW 0 0 500 0 Ib34 D na vid sug S4 Enable size and size for compressor group 4 line 1 O O YES kW 0 0 500 0 S Enable stages and stages for compressor group 1 line 1 YES O YES 100 100 50 100 50 75 100 25 50 75 100 33 66 100 Ib35 Se L HO S4 Enable stages and stages for compressor group 4 line 1 O O YES kw 100 50 100 50 75 100 25 50 75 100 33 66 100 cp Size group for compressor 1 line 1 or presence of inverter S1 S1 S4 INV b36 siti no si Ke C12 Size group for compressor 12 line 1 SI S1 S4 Compr Manufacturer Compressor manufacturer for screw compressors Generic GENERIC BITZER b10 REFCOMP HANBELL Compressor series Compressor series FE tid wi b11 Compressors sizes Compressor sizes line 1 SAME CAPACITY SAME CAPACITY DEFINE SIZES SI Enable size and size for compresso
3. Mask index Display description Description Default UOM Values W Felinit status Pressure Suction pressure line 1 89 Aa01 Sat temp Saturated suction temperature line 1 MG display only Actsetpoint Effective set point for pressure control with compensation applied line 1 9 sl Differential Control differential for pressure control line 1 9 ml Pressure Suction pressure line 1 EECH Aa02 Sat temp Saturated suction temperature line 1 AE Act setpoint Effective set point for temperature control with compensation applied line EP display only 1 Differential Control differential for temperature control line 1 Ss EMS Actual req Capacity delivered capacity required for suction line line 1 0 0 100 100 Control status according to the type of control set line 1 Stop Increas Operating Aa03 Reg status Decrease Timings display only Standby Alarms Regtype Compressor control type line 1 Neutral Proportional band Zone Neutral zone Setpoint Effective suction pressure set point with compensation applied line 1 0 sc 0 CO CO2 C12 Time remaining to next compressor start line 1 s 0 32000 CO Capacity delivered by compressor 1 on line 1 a to the right of the value 0 100 Aa04 means that some form of compressor capacity
4. Board with od VO DI pLAN ad 5 Ly ja dress 3 _ nnal inn Fig A b pLAN c 2suction lines onthe same board scroll or piston compressors and up mm mmm Board with to 1 condenser line 7 pLAN ad GER Ge dress 1 R Board with MT J IT PLAN DREG address 1 Em DIRAC Ko H EE i N L 3 Fig A c 75 pRack 0300011EN rel 1 2 04 12 2012 CAREL f 2 suction lines scroll or piston compressors 2 condenser lines on the i 2 suction lines on separate boards scroll or piston compressors 2 same board condenser lines on separate boards Board with Board with Board with pLAN ad pLAN pLAN dress 1 address 3 address 4 VO Board with Board with Fig Af pLAN pLAN address 1 address 2 g 2 suction lines on the same board scroll or piston compressors 2 HE ans T condenser lines on separate boards et Sat SS Cen pl sale VO Fig A i TNT TNT Board with pLAN ad dress 3 j 2 suction lines on separate boar
5. Mask index Display description Description Default UOM Values Enable of unit OnOff Enable unit On Off from digit input line 1 O O YES Ac03 By digit input L _ By supervisor Enable unit On Off from supervisor line 1 O O YES By black out Enable unit On Off from black out line 1 O O YES Unit on delay after System on delay after black out line 1 0 s 0 999 Ac04 blackout Enable of unit OnOff Enable unit On Off from digit input line 2 O O YES AC06 By digit input By supervisor Enable unit On Off from supervisor line 2 O O YES By black out Enable unit On Off from black out line 2 O O YES Unit on delay after System on delay after black out line 2 0 s 0 999 Ac07 blackout Mask index Display Description Description Default UOM Values E Input output the I Os available depend on the selected configuration the following are just some examples For the complete list of VO positions available see Appendix A 5 DI Alarm 1 for compressor 1 DI position line 1 03 01 18 B1 B10 Baa02 Status display only Status of alarm 1 for compressor 1 DI line 1 ae Closed Open Logic Logic of alarm 1 for compressor 1 DI line 1 NC NC NO Function display only Alarm 1 for compressor 1 function status line 1 Not active Active Suction pressure probe position line1 BI B1 B10
6. Mask index Display description Description Default UOM Values Hain screen Hours and minutes Date Suction Suction pressure or temperature su EE Condensing Condensing pressure or temperature DE Superheat Superheat 0 Sucttemp Suction temperature Ais Disch temp Discharge temperature 9 Main screen Unit status with unit OFF Unit OFF from alarm for single Unit OFF from blackout suction line and Unit OFF from supervisor single condenser Unit OFF by default line display only Unit OFF by DIN Unit Off from keypad Unit OFF by manual op Number of compressors on with unit ON 0 12 Compressor activation percentage with unit ON Ss 0 100 Number of fans on with unit ON 0 16 Fan activation percentage with unit ON 0 100 Hours and minutes Date SS L1 Suction Suction pressure or temperature line 1 i L1 Condens Condensing pressure or temperature line 1 sae L1 Superheat Superheat line 1 sa L1 Suct temp Suction temperature line 1 n 9 L1 Disch temp Discharge temperature line 1 ms Main screen for Unit status with unit OFF See values on screen for single line double suction Number of compressors on with unit ON line 1 0 12 Compressor activation percentage with unit ON line 1 0 100 ee Number of fans o
7. DI Alarm 1 for compressor 1 DI position line 2 03 01 18 B1 B10 Status display only Status of alarm 1 for compressor 1 DI line 2 Ss z Closed Open Cba01 Logic Logic of alarm 1 for compressor 1 DI line 2 NC NC NO Function display only Alarm 1 for compressor 1 function status line 2 Not active Active Regulation by Compressor control by temperature or pressure line 2 PRESSURE PRESSURE Cbb01 TEMPERATURE KR Regulation type Compressor control type line 2 NEUTRAL PROPORTIONAL BAND ZONE NEUTRAL ZONE Cbco Working hours Compressor 1 max operating hours line 2 0 999999 Compressor 1 Enable suction setpoint Enable setpoint compensation suction line 2 NO NO YES Cbdo compensation Enable compensation by Enable setpoint compensation by probe suction line 2 NO NO YES analog IN Cheo Number of alarms for Number of alarms for each compressor line 2 1 Oto4 each compressor Compressors type Type of compressors line 2 RECIPROCA RECIPROCATING Cbf02 TING SCROLL Compressors number Number of compressors line 2 2 3 1 12 Minimum voltage Voltage corresponding at the minimum capacity of the inverter line 2 0 0 Hz 0 0 10 0 Maximum voltage Voltage corresponding at the maximum capacity of the inverter line 2 1100 Hz 0 0 10 0 Cbg01 Nominal freq Nominal frequency nominal capacity at nominal frequency
8. 3 6 3 Summarytableofdigitaloutputsaccordingtothe Versions available Hardware NO contacts NC contacts changeover total SSR relays Version contacts no of outputs odels PRK100 A and PRK100 B Compact 5 ri 2 1 2 S 6 8 2 7 8 9 2 8 13 13 2 7 12 L 12 2 8 13 18 4 7 12 14 15 XL 23 2 8 13 29 4 7 12 14 15 odels PRK100 C and PRK100 D Compact 6 1 1 7 5 7 1 8 8 10 3 8 12 13 13 s L 13 B 5 8 12 13 18 14 15 XL 26 3 8 12 13 29 Tab 3 m 27 3 6 4 Remote connection of the digital outputs The Sizes of the cables for the remote connection of the digital outputs are shown in the following table AWG Size mm Current A 20 0 5 2A 15 1 5 6A 14 2 5 8A Tab 3 n If the product is installed in industrial environments application of the EN 61000 6 2 standard the length of the connections must be less than 30 m This length shouldn t be exceeded in any case to avoid measurement errors 3 1 PLAN electrical connections If the selected system configuration involves the connection of more than one pRack PR100 board in a pLAN AWG20 22 twisted pair shielded cable must be used with capacitance between the wires less than 90 PF m The maximum length of the pLAN network is 500 m with AWG22 twisted pair shielded cable The boards should be connected in parallel with reference to plug in connector J5 pRack Compact or J11 Versi
9. Fig 3 h 24 Vdc digital inputs The following figure represents an example for connecting the 24 Vdc digital inputs on pRack models S M L XL Fig 3 1 230 Vac digital inputs pRack M L XL models have up to two groups of inputs powered at 230 Vac 50 60 Hz 10 15 each group features two inputs see paragraph 2 2 1 for details The groups have double insulation between them and can have different voltages Important within each group the inputs must be powered at the same voltage to avoid short circuits or powering lower voltage inputs at 230 Vac The range of uncertainty of the switching threshold is from 43 to 90 Vac It is recommended to use a 100 mA fuse in series with the digital inputs The following figure represents an example for connecting the 230 Vac digital inputs on pRack models S M L XL Fig 3 3 4 2 Remote connection of the digital inputs CH Important note do not connect other devices to the digital inputs IDn inputs The Sizes of the cables for the remote connection of the digital inputs are shown in the following table Size mm for length up to 50 m Size mm for length until 100 m 0 25 05 If the product is installed in industrial environments application of the EN 61000 6 2 standard the length of the connections must be less than 30 m This length shouldn t be exceeded in any case to avoid measurement errors
10. D care RAK 00 315 Fig 2 h 2 2 8 pRack PR100 S M L XL product certification IEC EN 50155 Railway applications Electronic equipment used on rolling stock UL 873 and C22 2 No 24 93 Temperature indicating and regulating equipment CE directives LVD EMC Note for further details on the pRack boards see the pCO Sistema manual code 030220335 19 pRack 0300011EN rel 1 2 04 12 2012 CAREL 2 3 pRACK pR100 board general connection diagram Small Medium 24 Vac 230 Vac a e e e e o 0 Vac Vdc tif tif T TTT t fi F Sep d Ei 24 Vac Vdc 24 Vac a 0 Vac pGD1 pRack service card DRAG me ompressor Rack Controller R1 OO 2 F RS485 BMS connections field card serial card J2 13 a manm ma mm ml ml a a a aa ala sa aa sa aa al 29 ES kessA 229 PEe22294222222222 24 Vac Vdc a t 0 Vac Vdc Ntc Pt1000 1 Sonde raziometriche field ca Sonde 4 20 mA r serial card EE Sed le AA YAF ASAYIALPYAYA 24 ID 24 Vac Vdc 0 Vac Vdc Up oy
11. Mask index Display description Description Default UOM Values Liquid Injection Enable liquid injection function line 2 DIS DIS EN Edbb01 Threshold Liquid injection setpoint line 2 70 0 C sc Differential Liquid injection differential line 2 5 0 seg DI Heat recovery from digital input DI position line 2 01 18 B1 B10 Feba02 Status Status of heat recovery DI line 2 er ves Closed Open 7 Logic Logic of heat recovery DI line 2 C C NO Function Status of heat recovery from digital input DI function line 2 ot active Active Eebb0 Enable Heat Reclaim Enable heat recovery function line 2 O O YES DI ChillBooster fault DI position line 2 01 18 B1 B10 Egba0 Status Status of ChillBooster fault DI line 2 Closed Open Logic Logic of ChillBooster fault DI line 2 C C NO Function Status of ChillBooster fault DI line 21 ot active Active Device present ChillBooster function enable line 2 O O YES EgbbO Deactivation when fan Fans capacity under which ChillBooster is deactivated line 2 95 0 100 spower falls under Mask index Display description Description Default UOM Values oN F settings Summer Winter Enable Summer Winter period management line 1 NO NO YES Faaa01 Special days Enable special days management line 1 NO NO YES Holiday periods Enable holiday period management line 1 NO NO YES F22a02 Begin Summer period begin
12. CAREL NTC 50T90 G R T 10 KO 1 at 25 C NTC HTOT150 C Voltage 0 to 1 Vdc 0 10 Vdc 0 to 5 Vdc ratiometric Voltage free digital inputs 5 MA Passive 2 inputs B7 B8 CAREL NTC 50T90 G R T 10kO 1 at 25 C NTC HTOT150 C Voltage free digital inputs 5 mA Selectable via software Time constant 0 55 Input precision 0 3 of full sca Classification of the measurement circuits Category 1 IEC EN 61010 1 D Tab 2 b Important the 21 Vdc available at terminal VDC J2 can be used to power any active probes The maximum current is Imax 60 mA thermally protected against short circuits To power the 0 to 5 Vdc ratiometric probes use the 5V available at terminal 5Vref J2 The maximum current is Imax 60 mA thermally protected against short circuits Digital inputs Type Not optically isolated voltage free contact Maximum number 6 2 4 multifunction analogue inputs Minimum digital input impulse detection time Normally open open closed open 250 ms Normally closed closed open closed 250 ms Power supply internal Tab 2 c Analogue outputs Type Not optically isolated Maximum number 2 I PWM phase control output Y1 with 5V pulse of programmable duration and 1 x 0 to 10 Vdc output Y2 Power supply internal Precision 2 of full scale on Y2 Resolution 8 bit Settling time 2sonY2 Maximum load 1 KO 10 mA for
13. _ Suct pressure probe type line 1 4 20MA 0 1V 0 10V 4 20mA 0 5V Bab01 display only Suction pressure value line 1 KI Upper value Suct pressure maximum value line 1 7 0 barg ma Lower value Suct pressure minimum value line 1 0 5 barg iss 9 Calibration Suction pressure probe adjustment line 1 0 0 barg IS Line relay DO Compressor 1 line DO position and status On Off display line 1 Ss 01 29 Part winding DO Star Compressor 1 part winding or star DO position and status On Off Po 01 29 Bac02 relay DO display line 1 Delta relay DO Compressor 1 delta DO position and status On Off display line 1 n 01 29 Logic DO logic to start compressor 1 line 1 NC NC NO DO Compressor 1 unloader 1 DO position line 1 a 01 29 PA Bac03 Status display only Status for compressor 1 unloader 1 DO line 1 Closed Open Logic Logic for compressor 1 unloader 1 DO line 1 NO NC NO Function display only Compressor 1 unloader 1 function status line 1 Not active Active AO Compressor modulating device AO position line 1 0 01 06 Bad01 Type di output PWM phase control for compressor modulating device L a FCS1 CONVONOFF FCS3 CONV010 Status display only Modulating device output value line 1 0 0 0 to 100 0 Suction L1 Suction line 1 in manual mode DIS DIS E Suction L2 Suction line 2 in manu
14. 2 2 5 Other specifications of the pRack PR100 S M L XL boards Operating conditions 25T70 C 90 RH non condensing Storage conditions 40T70 C 90 RH non condensing ndex of protection IP20 IP40 on the front panel only Environmental pollution 2 Class according to protection against electric shock to be integrated into Class 1 and or 2 appliances PTI of the insulating materials 250V Period of stress across the insulating parts Long Type of action IC Type of disconnection or microswitching microswitching for all relay outputs Category of Resistance to heat and fire Category D mmunity against voltage surges Category Ageing characteristics operating hours 80 000 o of automatic operating cycles 100 000 EN 60730 1 30 000 UL 873 Software class and structure Class A Category of immunity to voltage surges IEC EN 61000 4 5 Category Ill Clock Error at 25 C 5 3 min year Error in the temperature range 10160 C 27 min year Ageing lt 5ppm 42 7min yean Battery duration typically 6 months 8 months maximum Recharge time typically 5 hours lt 8 hours maximum Tab 2 5 2 2 6 pRack PR100 S board dimensions UU D E DRECK 00 227 5 60 Fig 2 g 2 2 7 pRack PR100 M L XL board dimensions
15. Fig 1 c Example 4 2 suction lines on separate boards scroll or piston compressors 2 condenser lines one for each suction line board E i 3 7 T i ow U SR LAN I d PLAN e LAN DER O mg vene address 1 address 2 ES Tam EE E m Fig 1 d Example 5 2 suction lines on separate boards with scroll or piston compressors 2 condenser lines on separate boards gt gt pe vo pi Board si IE SE El Board with PLAN with PLAN address 3 address 4 Board Board with pLAN with pLAN address 1 address 2 Note if connecting more than one pRack pR100 board in a PLAN mixed networks cannot be created combining Compact boards and S M L XL boards while mixed networks are possible using combinations of the latter models only Fig 1 e Ao all the boards connected to the pLAN must have the same software revision pRack 0300011EN rel 1 2 04 12 2012 CAREL 2 HARDWARE FEATURES AND INSTALLATION 2 1 Description of the pRack PR100 Compact GG oi BG Key 1 power supply connector G G0 24 Vac or 36 Vmin to 72 Vmax 2 SYNC synchronicity inputs for phase control NTC 0 to 1 V 0 to 5 V O to 20 mA 4 to 20 mA analogue inputs 5 Vref to
16. 6 6 5 ChillBooster pRack PR100 can control the Carel ChillBooster device used for evaporative cooling of the air that flows through the condenser ChillBooster can be enabled and the related parameters set in main menu branch E g ChillBooster is activated when two conditions exist the outside temperature exceeds a set threshold the fan control request is at the maximum for at least a settable number of minutes The maximum request time starts counting again whenever the request decreases therefore the request must remain at the maximum for at least the set time Activation ends when the request falls below a set threshold pRack PR100 can manage an alarm digital input from ChillBooster the effect of which is to deactivate the device For details see Chapter 8 As the number of operating hours of ChillBooster is critical as regards formation of scale on the condenser pRack PR100 can manage the operating hour threshold which should be set to 200 hours Hygiene procedure To avoid water stagnation in the pipes a hygiene procedure can be enabled that activates ChillBooster every day for a set time if the outside temperature is greater than a threshold Note if the outside temperature probe is not configured or is configured but is not working ChillBooster operates based solely on the control request and the hygiene procedure can still be activated The only difference between probe not configured and probe not
17. D After having correctly connected and configured the pLAN network of pRack PR100 boards the system can be configured as described in paragraph 4 1 A 2 1 Setting the address of the terminal The pRack PR100 user terminal is supplied with the default address 32 allowing the terminal to be used without requiring any additional operations nonetheless in order to use an additional terminal or configure the PLAN address of the boards it needs to be changed according to the following procedure 1 power the terminal via the special telephone connector 2 press the 3 buttons N 4 and together for at least 5 seconds the terminal will display a screen similar to the one below with the cursor flashing in the top left corner Di Se SEL Ge 150 EOP a Some Fig A k 3 press once the cursor will movetothe Display address setting field 4 select the desired value using and V and confirm by pressing lt 7 again if the value selected is different from the value saved the following screen will be displayed and the new value will be saved to the display s permanent memory DiSFlar Changed Ao Fig A l Note if the address field is set to 0 the I O Board address field is no longer displayed as it has no meaning AN Important if the settings are not made correctly the text and the images on the display will be displayed incorrectly and out of order if during this operation t
18. 0 100 Current capac Digital ScrolITM compressor effective capacity line 1 0 100 Pressure Condensing pressure line 1 see ke Aa20 Sat temp Saturated condensing temperature line 1 ES display only Actsetpoint Effective set point for pressure control with compensation applied line 1 a 9 Ore Geet Differential Control differential for pressure control line 1 9 amie Pressure Condensing pressure line 1 G f pes Aa21 Sattemp Saturated condensing temperature line 1 sare k Act setpoint Effective set point for temperature control with compensation applied line DE er display only 1 Differential Control differential for temperature control line 1 io E el Actual req Capacity delivered capacity required for condenser line line 1 0 0 100 100 Status Control status according to the type of control set line 1 Stop Operating Increase Timings Aa22 Decrease Alarms display only Stand b Reg type Condenser control type line 1 Neutral Proportional band zone Neutral zone Setpoint Condenser control effective set point with compensation applied line 1 ES os hs F1 Power output of fan 1 on line 1 a to the right of the value means that 0 100 Aa23 some form of power override is active display only F8 Power output of fan 8 on line 1 a to the right of the value means that 0 100 some form of power override is active Fo Power output of fan 9 on lin
19. 3 5 Connecting the analogue outputs 3 5 1 Connecting 0 10 V analogue outputs The pRack PR100 provides 0 10 V optically isolated analogue outputs powered externally at 24 Vac Vdc The figure below shows the electrical connection diagram the OV zero of the power supply is also the reference for the output voltage serial card Vout 24 Vac Vdc V out ov Fig 3 k Hardware Version Terminals Reference Compact Y2 GO S M XL Y1 Y2 Y3 Y4 VGO L Y1 Y2 Y3 Y4 Y5 Y6 VGO Tab 3 i pRack 0300011EN rel 1 2 04 12 2012 3 5 2 Connecting PWM analogue outputs The pRack PR100 Compact Version provides a PWM analogue output 5 V pulses for phase cutting speed controllers or for connecting the CONVO 10A0 or CONVONOFF modules see following paragraph based on the setting from the user terminal or using the default value installation procedure The following figure shows a connection example H MCHRTF Q gg LI I N i l Fig 3 1 Hardware Version Terminals Reference Compact yi GO S M L XL Not available Tab 3 Note the power supply to the circuit measuring the zero crossing is at terminal SYNC on the pRack PR100 Compact and must be 24 Vac in phase with the power supply to the actuator for three phase power supply use the same phase to power the pRack PR100 Compact and the actuator
20. 6 6 4 Generic functions pRack PR100 can use the free inputs outputs and certain internal variables for generic functions Important The generic functions are available on pRack PR100 boards with pLAN addresses from 1 to 4 that is on all boards that manage a suction or condensing line nonetheless only the parameters corresponding to the functions managed by boards 1 and 2 are sent to the supervisory system The following generic functions are available for each board 5 stages e 2 modulations e 2alarms 1 scheduler Each function can be enabled disabled by digital input and from the user interface The generic functions can be enabled and the related parameters set in main menu branch Ef To be able to use the free inputs these must be configured as generic probes from A to E analogue inputs and generic inputs from F to J digital inputs consequently a maximum of 5 analogue and 5 digital inputs can be used After having configured the generic probes the associated variables can be used as control variables and the digital inputs as enabling variables As well as the generic probes and inputs pRack PR100 software internal variables can be used depending on the system configuration Some examples are for analogue variables e Suction pressure Condensing pressure e Saturated suction temperature Saturated condensing temperature e Suction temperature e Discharge temperature of compressors acti
21. Features SPDT SPST UL873 2 5 A resistive 2 A FLA 12 ALRA 250 Vac C300 pilot duty UL873 1 A resistive 1 A FLA 6 A LRA 250 Vac D300 30 000 cycles pilot duty 30 000 cycles EN 60730 1 2 A resistive 2 A inductive cosp 0 6 2 2 A 100 000 EN 60730 1 1 A resistive 1 A inductive cosp 0 6 1 1 cycles A 100 000 cycles Maximum number D No of changeover contacts 1 J3 Number of SSR outputs None Tab 2 f Important the groups that the digital outputs are divided into have two common pole terminals to simplify wiring Make sure that the current running through the common terminals does not exceed the rated current of an individual terminal that is 8 A To connect the digital outputs use a cable with minimum cross section of 1 5 mm control only resistive loads with a maximum power of 10 W to control inductive loads use an external relay to power resistive loads or the external relay use the same power supply as pRack Compact terminals G G0 that must be dedicated and not common with other devices in the case of external SSRs the voltage supplied by pRack to the Vdc terminal can be used after having checked the maximum current draw of the active probes and the SSRs For the connection diagrams see the paragraph 3 6 2 2 1 3 Electrical specifications of the pRack PR100 Compact board The following rules must be observed for the SSR digital outputs otherwise they may be damaged Isolated powe
22. Setpoint Fig 6 f As well as the decrease and increase differentials 4 times need to be set two for each zone which represent the maximum and minimum time to reach the request equal to 0 or 100 for the decrease and increase respectively fa Tutorial the decrease increase times minimum and maximum represent the time needed to change from maximum to minimum capacity and vice versa and not the time between the deactivation activation of the individual device For example in the case of 4 devices with the same capacity an increase time of 180 s means that one device is activated every 45 s CAREL In the situation shown in the figure the reguest sent by the controller decreases increases slowly as soon as the controlled value is outside of the Neutral zone while it decreases increases quickly the further the controlled value moves away from the Neutral zone in this way the response of the system is faster when further from steady conditions Note When using fixed times the maximum and minimum must be set to the same value In this case the request sent by the controller decreases increases constantly inside the deactivation activation differential 6 2 3 Modulation in Neutral zone pRack PR100 can activate a specific function inside the Neutral zone if modulating devices are used e g inverters This function can be enabled in main menu branch C a g C b g or D a g D b g Modulation in Neutral zone is u
23. When different pRack boards are used to manage the suction and condenser lines the backup suction pressure probe must be connected to the board that manages the suction line while the backup condensing pressure probe can be connected either to the board that manages the suction line or the board that manages the condenser line 35 If the main control probes are not working and no backup probes are fitted or the backup probes are also not working or the corresponding temperature probes are also not working fixed values are used for the control request set in main menu branch C a g C b g or D a g D b g 6 3 Compressors pRack PR100 can manage up to 2 suction lines with different types of compressors and capacity modulation devices applying common types of device rotation and controlling both the start mode and the safety imes for each type of compressor as well as a number of accessory unctions The compressor functions and related parameter settings are enabled rom main menu branch C a C b These features and functions are described in detail in the following paragraphs 6 3 1 Possible compressor configurations pRack PR100 can manage different types of compressors e Reciprocating Scroll e Screw oreover a capacity modulation device is allowed for each suction line which may be one of the following according to the type of compressor Compressors and modulation devices Compressors modulat
24. line 2 50 Hz 0 150 Nominal power Nominal capacity for compressor managed by inverter at nominal 10 0 kw 0 0 500 0 frequency line 2 Mask index Display description Description Default UOM Values DI Condensers The Os available depend on the selected configuration the following are just some examples For the complete list of VO positions available see Appendix A 5 DI Fan 1 overload DI position line 1 sil 01 18 B1 B10 Status display only Status of fan 1 overload DI line 1 Closed Open Daa01 Logic Logic of fan 1 overload DI line 1 NC NC NO Function display only Fan 1 overload function status line 1 Not active Active Condenser probe position line 1 BI B1 B10 0 1V Condenser probe type line 1 4 20mA 0 10V Daa39 FAA 0 5V display only Condensing pressure value line 1 ES Max limit Maximum condensing pressure value line 1 30 0 barg el Min limit Minimum condensing pressure value line 1 0 0 barg Mi Calib Condensing pressure probe calibration line 1 0 0 barg 0 pRack 0300011EN rel 1 2 04 12 2012 58 CAREL Mask index Display description Descri
25. pRack 0300011EN rel 1 2 04 12 2012 The models managed by pRack PR100 are shown in the table Manufacturer Model Bitzer CSH65 95 HS 53 4 64 HS 74 HS85 Hanbell RC2 100 140 180 RC2 170 200 1520 RefComp 134 S 134 XS L1 134 XS L2 SRS S1XX 755 SRC S785 985 SRC XS L1 SRC XS L2 Tab 6 9 For manufacturers or series of compressors that are not supported the generic type can be used and the corresponding parameters set as described previously Note for further details on the series of compressors supported and the related pre configured parameters contact Carel Envelope For screw compressors pRack PR100 can manage control ofthe envelope which can either be pre set or defined by the user pRack PR100 accepts the envelope control settings for the Bitzer CSH series compressors and these simply need to be enabled in main menu branch C a g For all other series of compressors the envelope can be managed by enabling and setting all the related parameters in main menu branch Ca g The following parameters need to be set in order to manage the envelope Definition of the points maximum 30 Definition of the zone maximum 12 Each zone can be made up of one or more polygons total maximum 14 which must be closed and convex Definition of the behaviour of the compressor in the different zones capacity and duration The meaning of the parameters is shown in the figure Discharge
26. 2 h pressors 1 condenser line on suction line 1 board scroll piston 2 2 suction lines on separate boards scroll or piston com 2 1 scroll piston 2 123 d pressors 1 condenser line on a separate board scroll piston 3 2 suction lines on separate boards scroll or piston 2 2 scroll piston 2 2 h compressors 2 condenser lines one for each suction scroll piston line board 4 2 suction lines on separate boards scroll or piston com 2 2 scroll piston 2 1 2 3 4 i pressors 2 condenser lines on separate boards scroll piston 5 1 suction line up to 2 screw compressors no conden 1 0 screw 2 1 a ser line 6 1 suction line up to 2 screw compressors 1 condenser 1 1 screw 2 1 a ine 7 1 suction line up to 2 screw compressors 1 condenser 1 1 screw 2 1 3 b ine on a separate board 8 2 suction lines on separate boards up to 2 screw com 2 1 screw scroll 2 12 1 2 h pressors on line 1 and scroll or piston compressors on piston ine 2 1 condenser line on suction line 1 board 9 2 suction lines on separate boards up to 2 screw com 2 1 screw scroll 2 12 1 2 3 d pressors on line 1 and scroll or piston compressors on piston ine 2 1 condenser line on a separate board 20 2 suction lines on separate boards up to 2 screw 2 2 screw scroll 2 12 1 2 h compressors on line 1 and scroll or piston compressors piston on line 2 2 condenser lines one for each suction line board 21 2 suction lines on separate boards up to 2 screw com 2 2 screw sc
27. 39 Screw compressors are fitted with up to 4 capacity control valves hereinafter V1 V2 V3 V4 which can have 4 types of behaviour ON the valve is open O OFF the valve is closed Intermittent the valve is open closed alternatively around 10 to 15 s e Pulsating the valve is open closed alternatively with very short opening closing times around 1 to 2 5 Important pulsating valves must be associated with an SSR relay output to avoid damage V1 V2 V3 and V4 can be managed to obtain stage or continuous compressor control Stage control For the control in stages normally involving four load stages 25 50 75 100 a table needs to be created that shows the behaviour of each valve in the different conditions starting 25 50 75 100 The figure shows one possible example see the documents supplied by the manufacturer of the compressor for how to complete the table VI V2 V3 V4 Start O O O O 25 O O 50 O 75 O O O 100 O O O O Tab 6 e f intermittent valves are used the cycle time also needs to be set Note normally operation at minimum capacity 25 is only possible for a limited time after which the compressor must switch o the next stage This function can be enabled and the corresponding ime can be set Continuous control For continuous control a table needs to be created that shows the behaviour of each valve in the diff
28. Active e Liguid Injection Enable liquid injection function line 1 DIS a DIS EN Se Threshold Liguid injection set point line 1 70 0 C ve EG D Differential Liquid injection differential line 1 5 0 PA es DI Heat recovery from digital input DI position line 1 01 18 B1 B10 Status display only Status of heat recovery DI line 1 Closed Open Eeaa02 Logic Logic of heat recovery DI line 1 NC NC NO Function display only Status of heat recovery from digital input DI function line 1 Not active Active DO Heat recovery pump DO position line 1 01 29 Feaa03 Status display only Heat recovery pump DO status line 1 Closed Open 8 Logic Heat recovery pump DO logic line 1 NC NC NO Function display only Heat recovery pump status line 1 s n Not active Active AO Heat recovery damper AO position line 1 01 29 Feaa04 Type bi n output PWM phase control for heat recovery damper AO Lu i FCS1 CONVONOFF ine 1 MCHRTF Status Heat recovery damper AO status line 1 FCS3 CONVO10 Heat recovery outlet temperature probe position line 1 BI B1 B10 Type of heat recovery outlet temperature probe line 1 4 20mA NTC PT1000 0 1V 0 10V 4 20MA 0 5V HINTC Eeaa05 display only Heat recovery outlet temperature value line 1 89 Upper value Maximum heat recovery outlet temperature value line 1 30 0
29. CAREL 6 2 2 Neutral zone The operating principle is schematised in he following figure Regulation reguest Increase Zone Neutral zone Decrease zone 100 Regulation probe value Force off Diff Setpoint Fig 6 e Inside the neutral zone the capacity request sent by the controller is constant except when there is a modulation device and modulation is enabled inside the neutral zone as described in the following paragraph and the value satisfies the temperature control request in those specific operating conditions therefore within this zone no device is stopped or started In the decrease zone the request also decreases at a rate that depends on the deviation from the set point and vice versa in the increase zone the request increases proportionally to the deviation For the increase and decrease zones the following can be used e Fixed times the request decreases or increases constantly as time elapses e Variable times the request decreases or increases more quickly according to the settings as the deviation from the set point increases Note The previous figure shows the increase and decrease with fixed times For control in Neutral zone the parameters shown in the figure must be set NZ timings Decrease Neutral Increase zone zone zone Max time 100 Max time 0 Min time 0 Min time 100 Regulation probe value Incr Diff
30. SUNDAY MON FRI MON SAT SAT amp SUN ALL DAYS pRack 0300011 EN rel 1 2 04 12 2012 62 CAREL Mask index Display description Description Default UOM Values Gen Funct 1 Enable generic stage function 1 DISAB DISABLE ENABLE Efa05 DS Se Se Gen Funct 5 Enable generic stage function 5 DISAB DISABLE ENABLE Efa06 Regulation variable Control variable for generic stage function 1 n Mode Direct or reverse control DIRECT te DIRECT REVERSE Enable Enabling variable for generic stage function 1 ih Efa07 Description Enable description change SKIP SKIP CHANGE Description nt Efa08 Setpoint Setpoint for generic stage function 1 0 0 C RE ai Differential Differential for generic stage function 1 0 0 C EE High alarm High alarm enabling for generic stage function 1 DISAB DISABLE ENABLE High alarm High alarm threshold for generic stage function 1 0 0 C RA PE Gas Delay time High alarm delay for generic stage function 1 0 S 0 9999 Efa09 Alarm type Low alarm enabling for generic stage function 1 LIGHT LIGHT SERIOUS Low alarm Low alarm threshold for generic stage fu
31. from lowest to highest is e weekly scheduler closing periods special days For example if the weekly scheduler requires activation of a function yet a closing period is in progress and requires deactivation of the same function then the function is deactivated The following functions allow the setting of time bands Split condenser the function is active only based on the operating seasons and consequently special days closing periods and daily time bands are ignored Silencer the function is only active with daily time bands there is no link to operating seasons special days and closing periods e Heat recovery the function is active with daily time bands special days and closing periods no link to operating seasons The link to the general scheduler can be disabled considering the time bands only Set point compensation active with operating seasons special days closing periods and daily time bands two different offsets Generic functions the generic scheduling function is active with the operating seasons special days closing periods and daily time bands Operation of the generic functions can be separated from the generic scheduler considering the daily time bands only For details on the functions that use time bands see the corresponding paragraphs 6 8 Managing the default values pRack PR100 can manage two different sets of default values e user defaults Carel defaults The two fun
32. if the heat recovery function is present As well as enabling the function an offset from the activation threshold for the prevent by overriding devices function must be set The activation differential for this function is the same as set for the prevent by overriding devices function When reaching the threshold pRack PR100 activates the heat recovery function if the conditions allow see paragraph 6 6 3 for details Prevent by activating ChillBooster The parameters relating to this function can be set in branch G b a G b b of the main menu if the ChillBooster function is present As well as enabling the function an offset from the activation threshold for the prevent by overriding devices function must be set The activation differential for this function is the same as set for the prevent by overriding devices function When reaching the threshold pRack PR100 force activates the ChillBooster if the conditions allow see paragraph 6 6 5 for details The following figure illustrates the activation thresholds for the prevent function and the safety devices Pressure HP by pressostat HP by probe Prevent Offset Heat reclaim or ChillBooster Fig 8 e pRack 0300011EN rel 1 2 04 12 2012 pRack PR100 can be connected to various supervisory systems specifically the Carel and Modbus communication protocols can be used For the Carel protocol the PlantVisor PRO and PlantWatch PRO models a
33. see paragraph 6 6 1 for details If a modulating device is used for the compressors further alarms become available compressor inverter warning common for the entire suction line when the device is an inverter oil sump temperature alarm high discharge temperature and oil dilution for Digital Scroll compressors For each compressor two alarm variables are sent to the supervisor one for each priority As well as the alarm signal the description of the alarm is also sent to the supervisor using the values shown in the table The supervisor can interpret the variables sent by pRack PR100 and provide the correct description of the alarm pRack 0300011EN rel 1 2 04 12 2012 70 CAREL 8 3 Pressure and prevent alarms pRack PR100 can manage pressure alarms from a pressure switch or probe according to the following diagram Alarms from pressure switch e Low suction pressure High condensing pressure Alarms from probe e Low suction pressure High suction pressure Low condensing pressure High condensing pressure One possible example for the low pressure alarms is shown in the figure EI Differential Pressure Probe alarm Fig 8 c Pressostat alarm In addition the high pressure alarm features a prevent function available by manually overriding the devices as well as using additional functions such as heat recovery and ChillBooster Operation of the alarms and
34. suction line 1 Es ary Cad10 admitted z z z Offline decreasing time Reduction time when supervisor is offline for floating setpoint 0 min 0 999 suction line 1 Enable intefactions with Enable interactions with pLoads line 1 NO NO YES pLoads Cadi Li threshold Suction pressure threshold for disabling pLoads line 1 dl 0 0 to 99 9 Reactivate delay pLoads activation delay previously disabled by a threshold 60 S 60 9999 e i Riad NO ACTIONLIMIT TO CURRENT Config action 1 Li ion associated with the first digital input connected NO ACTION CAPACITYLIMIT CAPACITY TODEC CAPACITY BY Percentage value to limit capacity to or reduce capacity by if the LIMIT CAPACITY TO or LIMIT CAPACITY BY actions have been configured 0 0 0 0 to 100 0 respectively line 1 die Configuration of action associated with the second digital input con NORS CURRENT Config action 2 SE to pLoads line 1 9 NO ACTION CAPACITYLIMIT CAPACITY TODEC CAPACITY BY Percentage value to limit capacity to or reduce capacity by if the LIMIT CAPACITY TO or LIMIT CAPACITY BY actions have been configured 0 0 0 0 to 100 0 respectively line 1 Enable supervisor action Enable pLoads action from supervisor line 1 NO NO YES Enable Enable calculation of power consumption NO NO YES Load Number of phases Ge SINGLE PHASE THREE PHASE Cad13 Voltage Mains voltage 400 V 0 to 999 Cos phi Displacement cos 1 0 0 0 to 1 0 Reset counter
35. working concerns the ChillBooster operating without temperature probe alarm which is only generated when the probe is configured but not working ChillBooster as the first stage in high pressure prevention ChillBooster can be used to prevent high condensing pressure The parameters relating to this function can be set in branch G b a G b b in the main menu after having enabled the ChillBooster function For details on the prevent function see paragraph 8 3 3 Operation of ChillBooster as the first stage in high pressure prevention is Similar to the heat recovery function described in paragraph 6 6 3 The function must be enabled and an offset must be set in relation to the prevent threshold while the differential is the same as set for the prevent function pRack 0300011EN rel 1 2 04 12 2012 6 6 6 Double line synchronisation DSS pRack PR100 can manage for two line configurations several synchronisation functions between the two lines Disable simultaneous compressors starts Force the medium temperature line on if the low temperature line is activated Shutdown the low temperature line if the medium temperature line has a serious alarm The three DSS functions can be enabled independently and are useful for booster or CO2 cascade system configurations AR Fig 6 al Important in the p
36. 1 3 Bab02 Caaam Return backup pressure probe line 1 Bab03 Caaao Return temperature probe line 1 Bab04 Daa39 Condensing pressure probe line 1 z Bab09 Daa40 Backup condensing pressure probe line 1 Bab11 Daa41 Discharge temperature probe line 1 Bab12 Liquid temperature probe line 1 Bab13 Eeaa05 Heat recovery outlet temperature probe line 1 Bab15 Daa20 Outside temperature probe line 1 Bab16 Room temperature probe line 1 Bab17 Eaaa04 Oil temperature probe line 1 2 Bab29 Ecaa01 Edaa01 Discharge temperature probe compressor 1 line 1 amp Bab30 Ecaa02 Edaa02 Discharge temperature probe compressor 2 line 1 Bab31 Ecaa03 Edaa03 Discharge temperature probe compressor 3 line 1 1Bab32 Ecaa04 Edaa04 Discharge temperature probe compressor 4 line 1 2 Bab33 Ecaa05 Edaa05 Discharge temperature probe compressor 5 line 1 Bab34 Ecaa06 Edaa06 Discharge temperature probe compressor 6 line 1 Bab41 Eaaa05 Oil temperature probe compressor 1 line 1 Bab42 Eaaa06 Oil temperature probe compressor 2 line 1 Bab43 Eaaa07 Oil temperature probe compressor 3 line 1 Bab44 Eaaa08 Oil temperature probe compressor 4 line 1 Bab45 Eaaa09 Oil temperature probe compressor 5 line 1 Bab46 Eaaa10 Oil temperature probe compressor 6 line 1 Bab05 Caal Return pressure probe line 2 3 Bab06 Caaam Return backup pressure probe line 2 Bab07 Caaao Return temperature probe line 2 Bab08 Dba39 Condensing pressure probe line 2 a Bab10 Dba40 Bac
37. 2 0 0 100 100 Status Control status according to the type of control set line 2 Stop Operating Increase Timings Aa33 Decrease Alarms display only Stand by Reg type Compressor control type line 2 Neutral Proportional band zone Neutral zone Setpoint Effective suction pressure set point with compensation applied line 2 sl ME CO1 CO2 C12 Time remaining to next compressor start line 2 s 0 32000 CO1 Capacity delivered by compressor 1 on line 2 a to the right of the value 0 100 Aa34 means that some form of compressor capacity override is active e g times display only alarms start up procedure C12 Capacity delivered by compressor 12 line 2 0 100 Aa05 Temperature Suction temperature line 2 AE display only Superheat Superheat line 2 sa 89 Aa41 Disch 1 Discharge temperature compressor 1 line 2 on tech display only Disch 6 Discharge temperature compressor 6 line 2 2 Liq inj 1 DO umber of digital output associated and status liquid injection compr 1 0 29 ON OFF Aaa3 line 2 display only Liq inj 6 DO umber of digital output associated and status liquid injection compr 6 0 29 ON OFF line 2 Discharge temperature __ Digital ScrollTM compressor discharge temperature line 2 ak A Cap reduction Digital ScrollTM compressor capacity reduction in progress line 2 NO YES a45 Oil Sg a il sump temp Digital ScrolITM compressor
38. 2 Pistoni Scroll 2 1 2 1 edium 2 S 1 12 d RS3 2 Pistoni Scroll 3 1 3 1 Large 3 1 3 13 d RS4 2 Pistoni Scroll 4 Inverter 3 1 Inverter 1 2 edium Medium 4 SR Inverter 3 1 Inverter Tab 4 a configuration not available in versions 1 0 and 1 1 of the pRack software pRack 0300011EN rel 1 2 04 12 2012 28 CAREL 4 1 3 Advanced configuration CPP a Ga DESIO JAMMED COME TEI KA I e i Tab ii DPL ELLE O This solution is used to establish the configuration of the pLAN structure required for correct system operation Once the procedure for selecting the various factors that affect the final configuration has been completed the pRack PR100 software verifies whether the pLAN configuration is exact and prepares the user interface for configuration of the parameters that need to be set manually by the user Important this configuration solution is only recommended for expert users as all the system parameters need to be set manually 4 1 4 Associating the inputs and outputs When using pre configurations and the wizard pRack pR100 can automatically associate the board s inputs and outputs with the various functions Forthe wizard only after having configured the lines automatic association can be chosen as an option If choosing not to use this function the I Os need to be configured manually according to requirements The criteria applied for automatic association a
39. 3 5 3 Optional modules Module for converting a PWM analogue output to a liner 0 10 V and 4 20 mA analogue output code CONV0 10A0 The module is used to convert a PWM output 5 V pulses to a liner 0 10 Vand 4 20 mA analogue output code CONVO 10A0 The control Signal at the input terminals optically isolated from the rest of the module must have a maximum amplitude of 5V and a period between 8 ms and 200 ms The 0 10 V output voltage can be connected to a maximum load of 2 kQ with a maximum ripple of 100 mV The 4 20 mA current output can be connected to a maximum load of 280 Q with maximum overshoot of 0 3 mA The mechanical dimensions of the module are 87x36x60 mm 2 DIN modules with IP20 index of protection Module for converting a 0 10 V analogue output to an SPDT digital output code CONVONOFFO The module is used to convert a 0 10 V analogue output to an ON OFF relay output The control Signal at the input terminals optically isolated from the rest of the module to ensure the switching of the relay from OFF to ON must have a maximum amplitude of 3 3 V The relay is SPDT with max current of 10 A and max inductive load of 1 3 HP The mechanical dimensions of the module are 87x36x60 mm 2 DIN modules with IP20 index of protection pRack 0300011EN rel 1 2 04 12 2012 26 CAREL 3 6 Connecting the digital outputs 3 6 1 Electromechanical relay digital outputs he pRack PR100 features
40. 5 minutes of operation the software locks up all the relays open and the warning INVALID OEM IDENTIFIER is shown The update files are available at http ksa CAREL com Important each version of the pRack PR100 software is associated with a specific controller firmware version BIOS therefore if updating the version always check and where necessary update the BIOS on the board The appropriate BIOS version is supplied together with the pRack pR100 update files 10 1 Updating using pRack Manager The software resident in the pRack PR100 boards can be updated from a PC For the connection procedure see Chapter 9 while for further details see the pRack Manager program online help Note The pCOLoad program can also be used to update the pRack PR100 software however Winload cannot be used 10 2 Updating using SmartKey The SMARTKEY programming key can copy the contents of one pRack PR100 board to another identical board using the telephone connector on the terminal the pLAN must be disconnected From a PC with the SmartKey Programmer software running the key can be configured to perform specific operations acquire log files program applications etc The SmartKey Programmer software is installed together with pRack Manager The following figure shows the connection of the SmartKey to the PC using the PCOSOOAKYO converter Fig 10 a Note for further details on using the SmartKey see the corre
41. B5 B6 B7 B8 B9 B10 2 B1 B2 B3 B6 B7 B8 white Signal Tab 3 b Tab 3 d Note the two wires of the NTC sensors are equivalent as they have no polarity therefore it is not necessary to follow any specific order when connecting to the terminal block 3 3 2 Connecting PT1000 temperature sensors The pRack PR100 can be connected to 2 wire PT1000 sensors for all high temperature applications the operating range is 100 to 200 C The inputs must be pre configured for PT1000 Signals from the user terminal or using the default value installation procedure The connection diagram is shown below Compressor Rac field card ni Important do not connect the green wire 3 3 4 Connecting 0 to 5 V ratiometric pressure probes pRack PR100 can be connected to any other pressure probes available on the market with 0 to 5 V ratiometric sensor The inputs must be set for 0 to 5 V Signals from the user terminal or using the default value installation procedure The connection diagram is shown below I nr Hardware Terminals Probe wire Description Fig 3 b Version colour Hardware Version Terminals PT1000 probe cable Compact 5Vref black power supply Compact GND 1 GND green power supply reference B3 B4 2 B1 B2 B5 B6 white Signal S M XL BC4 B
42. Bba54 Heat reclaim pump anual operating status for heat recovery pump line 1 OFF zs OFF O orce Bba55 ChillBooster anual operating status for ChillBooster line 1 OFF OFF 01 orce Bba57 Fan anual operating status for fan 1 line 2 OFF OFF 01 orce 53 pRack 0300011EN rel 1 2 04 12 2012 CAREL Mask index Display Description Description Default UOM Values Fan16 anual operating status for fan 16 line 2 OFF OFF ON Bba72 force Bba73 Heat reclaim pump anual operating status for heat recovery pump line 2 OFF OFF ON force Bba74 ChillBooster anual operating status for ChillBooster line 2 OFF OFF ON force BbbOS Compressor anual continuous capacity request for compressor 1 line 1 0 0 0 0 100 0 Force to Oil cool pump anual request for oil cooling pump line 1 0 0 0 0 100 0 Bbb06 Force to BbbO7 Compressor anual continuous capacity request for compressor 1 line 2 0 0 0 0 100 0 Force to Oil cool pump anual request for oil cooling pump line 2 0 0 0 0 100 0 Bbb08 Force to Fan anual continuous capacity request for fan 1 line 1 0 0 0 0 100 0 Bbb09 Force to Bbb10 Heat reclaim pump anual request for heat recovery pump line 1 0 0 0 0 100 0 force Bbb11 Fan1 anual continuous capacity request for fan 1 line 2 0 0 0 0 100 0 Forc
43. Caa08 Line relay compressor 1 line 1 Partwinding Star relay compressor 1 line 1 Delta relay compressor 1 line 1 Bac03 Caa09 Valve 1 compressor 1 line Bac04 Caa10 Valve 2 compressor 1 line Bac05 Caa11 Valve 3 compressor 1 line Bac07 Caa12 Balancing valve compressor 1 line 1 Bac08 Caa22 Line relay compressor 2 line 1 Partwinding Star relay compressor 2 line 1 Delta relay compressor 2 line 1 Bac10 Caa23 Valve 1 compressor 2 line Bac11 Caa24 Valve 2 compressor 1 line Bac12 Caa25 Valve 3 compressor 1 line Bac13 Caa26 Balancing valve compressor 1 line 1 Bac15 Caa35 Line relay compressor 3 line 1 Partwinding Star relay compressor 3 line 1 Delta relay compressor 3 line 1 Bac16 Caa36 Valve 1 compressor 3 line Bac17 Caa37 Valve 2 compressor 3 line Bac18 Caa38 Valve 3 compressor 3 line Bac20 Caa39 Balancing valve compressor 3 line 1 Bac21 Caa47 Line relay compressor 4 line 1 Partwinding Star relay compressor 4 line 1 Delta relay compressor 4 line 1 Bac22 Caa48 Valve 1 compressor 4 line Bac23 Caa49 Valve 2 compressor 4 line Bac24 Caa50 Valve 3 compressor 4 line Bac26 Caa5 Balancing valve compressor 4 line 1 Bac28 Caa60 Line relay compressor 5 line 1 Partwinding Star relay compressor 5 line 1 Delta relay compressor 5 line 1 B
44. Caa79 Alarm 2 compressor 7 line Baa49 Caa84 Alarm 1 compressor 8 line Baa50 Caa85 Alarm 2 compressor 8 line Baa51 Caa90 Alarm 1 compressor 9 line Baa52 Caa91 Alarm 2 compressor 9 line Baa53 Caa95 Alarm 1 compressor 10 line 1 Baa54 Caa99 Alarm 1 compressor 11 line 1 Baa55 Caaad Alarm 1 compressor 12 line 1 Baa58 Caaaj Common oil alarm line 1 Baa59 Caaak Liquid level alarm line 1 Baadc Fan inverter warning line 1 Baa57 Common high pressure switch line 1 Baaau Daa01 Fan overload 1 line 1 Baaav Daa02 Fan overload 2 line 1 Baaaw Daa03 Fan overload 3 line 1 Baaax Daa04 Fan overload 4 line 1 Baaay Daa05 Fan overload 5 line 1 Baaaz Daa06 Fan overload 6 line 1 2 Baaba Daa07 Fan overload 7 line 1 5 Baabb Daa08 Fan overload 8 line 1 5 Baabc Daa09 Fan overload 9 line 1 LJ Baabd Daa10 Fan overload 10 line 1 Baabe Daa11 Fan overload 11 line 1 Baabf Daa12 Fan overload 12 line 1 Baabg Daa13 Fan overload 13 line 1 Baabh Daa14 Fan overload 14 line 1 Baabi Daa15 Fan overload 15 line 1 Baabj Daa16 Fan overload 16 line 1 Baabk Daa17 Common fan overload line 1 Baab Heat recovery line 1 Baacx Egaa01 ChillBooster fault line 1 o i sia be Baacz Enable floating condensing line 1 S Baacl Caa00 Daa41 Set point compensation line 1 Daa43 Anti noise line 1 Daa44 Split condenser line 1 6 Daa45 Enable floating condensing line 1 Feaa02 Heat recovery activation line 1 pRack 0300011EN rel 1 2 04 12
45. Fan operation with modulating device If the fans are controlled by a modulating device the meaning of the parameters that associate the minimum and maximum values of the devices modulating output and the minimum and maximum capacity of the modulating device on screens Dag02 and Dbg02 is illustrated in the following examples Example 1 minimum modulating output value 0 V maximum value 10 V minimum modulating device capacity 0 maximum 100 Analog output Max capacity 100 Max output value 10V Min capacity 0 Min output value 0V Setpoint Regulation probe value Differential Differential Fig 6 u Example 2 minimum modulating output value 0 V maximum value 10V minimum modulating device capacity 60 maximum 100 Analog output Max capacity 100 Max output value 10V Min output value 0V Min capacity 60 Setpoint Regulation probe value Differential Differential Fig 6 v Example 3 minimum modulating output value 2 V maximum value 10V minimum modulating device capacity 60 maximum 100 Analog output Max capacity 100 Max output value 10V Min capacity 60 Min output value 2V Setpoint Regulation probe value Differential Differential Fig 6 w CAREL Cut off pRack PR100 manages a control cut off for the fans functions and related parameter settings can be ena
46. J2 4 B3 universal analogue input 3 NTC 0 1 V PT1000 J2 5 B4 universal analogue input 4 NTC 0 1 V PT1000 J2 6 B5 universal analogue input 5 NTC 0 to 1 V 0 to 5 V ratiometric 0 to 10 V ON OFF J2 7 B6 universal analogue input 6 NTC 0 to 1 V 0 to 5 V ratiometric 0 to 10 V ON OFF J2 6 GND analogue input reference J2 8 5Vref power supply for 0 5 V ratiometric probes J2 9 VDC 21 Vdc power supply for active probes J2 10 DI digital input no 1 J2 11 GND common for digital inputs and analogue inputs J3 C1 common for relay 1 J3 2 NC1 not used normally closed contact relay no 1 J3 3 O1 normally open contact relay no 1 normally open contact relay no 1 SSR 24 Vac Vdc J4 6 pin telephone connector for connecting the standard user terminal J5 RX TX RX TX connector for RS485 connection to the pLAN network J5 2 RX TX _ RX TX connector for RS485 connection to the pLAN network J5 3 GND reference for RS485 connection to the pLAN network J6 4 pin connector for connecting the user terminal pLD not used J7 TLAN tLAN network connector J7 2 GND tLAN network connection reference J8 RX TX RX TX connector for RS485 connection to the optically isolated Field bus network J8 2 RX TX RX TX connector for RS485 connection to the optically isolated Field bus network J8 3 GND reference for RS485 connection to the optically isolated Field bus network J9 y analogue output no 1 PWM for phas
47. Ot ch APS LOS ba MANUAL OP S C ital OUE C TESE 3 DiJital out b AMSLOS OUt la C COmPre a Line i I a I 0 Status HE OL Da OP KOUP a Ee sr S earar CON Faiz Marte beLine Sa D condensers aLi i b Lih ik ni E 0ther FUNC a Gil Line i be Lane SEC ay Line i be Lane C economi ser a Lih amp i be Lane d liQUid if a Lih amp i E Lin e Hest recovery Bhin i E peri fa Generato FLIP ti OF Go o mu PENCE stat LINE ik Ha chi 1160 ia Life ha DSS iw ai oN Fe SET Li MEE Zia LO Es Fich JUST ina LSPS DEL CG EHS S L me 1 BLEME E a PASSIMOPA D G Jaret a Los pEI uerg BLEME 1 BLEME E CO BIER COMFiS BeLane i BLEME Ha INFO a EE a FrE CON Fi SUPEt ions ina Wa ed Ta Pod MONT Ga d DE FEIL this menu level is only visible for system configurations with two lines Note The figure illustrates the maximum menu configuration visible with the Manufacturer password If accessing with the User or Maintenance password only the menu items available are visible For some menu items access is possible with different password levels e g I O status but the information available on the screens chan
48. Pressure iT Fig 8 b pRack 0300011EN rel 1 2 04 12 2012 After having selected the generic description no other description can be selected In general the descriptions are divided into four groups generic others overload oil high pressure low pressure screw rotation oil warning After a description has been selected for a certain group descriptions from a different group can not be selected for that alarm For example generic only or overload oil or rotation only or overload high pressure etc can be selected Each alarm will have one alarm screen which will show all the descriptions associated to that alarm Based on the number of alarms selected the descriptions associated by default are shown in the table below Default descriptions based on the number of alarms Number of alarms Descriptions 1 Generic 2 Overload P LP Overload 3 P LP Oil Overload 4 H il Overload P 5 LP Oil Oil warning Overload HP LP R Oil Oil warning Rotation Overload HP LP 7 Oil Oil warning Rotation Generic Tab 8 b Note for oil alarms special management is available whereby the alarm is interpreted as an oil level alarm When the alarm is activated a number of attempts are made to restore the level for a set time before the alarm is signalled and the compressor stopped
49. RX TX connector for R5485 connection to the PLAN network J11 3 GND GND connector for R 485 connection to the pLAN network J12 1 CI common for relays 1 2 3 J12 2 OI normally open contact relay no 1 J12 3 02 normally open contact relay no 2 J12 4 03 normally open contact relay no 3 J12 5 CI common for relays 1 2 3 S M L XL J13 1 4 common for relays 4 5 6 J13 2 04 normally open contact relay no 4 J13 3 05 normally open contact relay no 5 J13 4 06 normally open contact relay no 6 J13 5 CA common for relays 4 5 6 J14 1 C7 common for relay no 7 J14 2 07 normally open contact relay no 7 normally open contact relay no 7 SSR 24 Vac Vdc J14 3 C7 common for relay no 7 J15 1 08 normally open contact relay no 8 only S board normally open contact relay no 8 SSR 24 Vac Vdc S board only J15 2 8 common for relay no 8 J15 3 C8 normally closed contact relay no 8 only S board not used board only J16 1 C9 common for relay 9 10 11 J16 2 09 normally open contact relay no 9 J16 3 010 normally open contact relay no 10 J16 4 O11 normally open contact relay no J16 5 C9 common for relay 9 10 11 M L XL J17 012 normally open contact relay no 12 normally open contact relay no 12 SSR 24 Vac Vdc J17 2 C12 common for relay no 12 J17 3 C12 normally closed contact relay no 12 not used J18 013 normally open contact relay no 13 J18 2 C13 common for relay no 13 J18 3 C13 normally clos
50. Reset current power counter NO NO YES 59 pRack 0300011EN rel 1 2 04 12 2012 CAREL Mask index Display description Description Default UOM Values Cae01 Number of alarms for Number of alarms for each compressor line 1 1 4 0 4 7 each compressor Alarm1 description Selection of the first compressor alarm description Generic Overload e E Not available Cae02 High pressure Low pressure Oil line 1 O Not selected DI Selected Alarm1 description Selection of the first compressor alarm description Rotation Oil warn E Not available Cae03 ing line 1 O Not selected DI Selected Activ delay Activation delay for compressor alarm 1 during working line 1 0 S 0 999 Cae04 Start up delay Activation delay for compressor alarm 1 at start up line 1 0 S 0 999 Reset Type of reset for compressor alarm 1 line 1 AUT AUT MAN Priority Type of priority for compressor alarm 1 line 1 SERIOUS ae LIGHT SERIOUS Suction pressure tempe Type of high suction pressure temperature alarm threshold ABSOLUTE _ ABSOLUTE RELATIVE Cae24 rature high alarm Threshold High suction pressure temperature alarm threshold cos ES he ee Alarm diff High suction pressure temperature alarm differential mal Dec SS Alarm
51. TIME Cycle time Cycle time value line 1 13 5 12 20 Caf19 Oil dilution Digital Scroll enable oil temperature alarm line 1 ENABLE DISABLE ENABLE Disch temper Digital Scroll enable discharge temperature alarm line 1 ENABLE DISABLE ENABLE Compr Manufacturer Compressor manufacturer for screw compressors GENERIC GENERIC BITZER Caf20 REFCOMP HANBELL Compressor series Compressor series EP Gis Number of valves Number of valves used for capacity control 3 1 4 Cat Stages configuration Stage configuration for screw compressor 1 25 50 75 100 50 100 50 75 100 100 25 50 75 100 33 66 100 Common time Enable common delay time from one stage to the following for screw ENABLE DISABLE ENABLE compressor 1 Caf22 Common time time Common delay time from one stage and the following for screw 0 s 0 999 between steps compressor 1 From to Minimum compressor delay time in order to reach each capacity stage s 0 999 from previous for screw compressor 1 Caf23 Intermittent valve time Intermittent on off time for capacity control valves for screw compres 10 s 0 09 sor 1 Valve conf Configuration of the behaviour of the valves during start stop and O ON Caf24 stages for screw compressor 1 X OFF I Intermittent P Pulsing Limit comp permanence Enable time limit at minimum capacity for screw compressor 1 ENABLE KE DISABLE at min power ENABLE Max perman time Max time for compressor operation at minimum capacity fo
52. Type of alarm for generic alarm function 1 Light Serious display only Delay time Control differential for generic alarm function 1 S 0 9999 Status Status of generic alarm function 1 ot active Active Reg variable Control variable status for generic alarm function 2 ot active Active Aaav Enable Enabling variable status for generic alarm function 2 ot active Active j Type Type of alarm for generic alarm function 2 Light Serious display only Delay time Control differential for generic alarm function 2 s 0 9999 Status Status of generic alarm function 2 ot active Active Weekday Day of the week onday Sunday TB 1 i gt i Enabling and definition of time band 1 start hour and minutes end hour Aaaw and minutes for the generic scheduling function display only TB4 gt Enabling and definition of time band 4 start hour and minutes end hour and minutes for the generic scheduling function Status Status of generic scheduling function Not active Active Status Status of heat recovery function line 1 OFF 01 Aaax Heat recl temp Heat recovery temperature line 1 EG sil display only An OUT modulat Status of modulating heat recovery valve output line 1 0 0 100 0 HR Preven Status of prevention via heat recovery line 1 OFF 01 Status Status of heat recovery function line 2 OFF 01 Aaay Heat recl temp Heat r
53. are common to both lines while for each ine a different action can be associated with the same digital input n any case the previous actions do not interfere with the pRack pR100 safety features which always have priority over the actions set from digital input oreover a suction pressure safety threshold has been introduced herefore the actions associated with the inputs are only enabled if the pressure does not exceed this threshold settable by parameter After he pLoads action has been disabled it is necessary that the suction pressure returns below the safety threshold for a setted time higher than 30 s before restoring the interaction between the two devices so to the regulation can be stabilize 6 6 11 Power consumption pRack PR100 can calculate power consumption for the current day and the previous day The calculation can be enabled and the related parameters set from main menu branch C a d and C b d To calculate power consumption the current draw is measured via an analogue input while the type of load rated voltage and displacement can be set by parameter The calculation starts at 00 00 every day and continues until 24 00 when the value from the previous day is overwritten with the new calculated value The supervisory system can use the two values current day s consumption and previous day s consumption for power consumption analysis 6 7 Settings 6 7 1 Clock pRack PR100 fe
54. barg Bee Lower value Minimum heat recovery outlet temperature value line 1 0 0 barg of Calibration Heat recovery outlet temperature probe calibration line 1 0 0 barg a Eeab01 Enable Heat Reclaim Enable heat recovery function line 1 O OYES Feab02 Condensing pressure Condensing pressure lower limit for heat recovery line 1 0 0 barg E 8 Lower Limit Eeab03 Modulation by temperat Enable heat recovery control by discharge temperature line 1 O O YES Feab04 Setpoint Heat recovery discharge temperature setpoint line 1 0 0 C sd Differential Heat recovery discharge temperature differential line 1 0 0 C 0 0 99 9 Disable floating conden Disable floating condensing pressure when heat reclaim is active O aa O YES Feab05 sing pressure Di Setpoint offset Offset that must be applied to the condensing setpoint instead of 99 9 999 floating condensing when heat reclaim is active 5 Enable activation by Enable heat recovery control by scheduler line 1 O O YES Feab06 scheduler Active Time Bands Week of the day MON SUN TB1 gt Time band 1 enabling and definition start hour and minute end hour oe and minute condenser line 1 TB4 gt Time band 4 enabling and definition start hour and minute end hour and minute condenser line 1 Eeab07 Changes Time band changes action SS CONFIRM amp SAVE LOAD PREVIOUS CLEAR ALL Copy to Copy settings to other days 0 MONDAY
55. be monitored I Conseguently the three conditions for activation of the economizer unction are Part winding 1 Capacity above a set threshold Condensing pressure below a set threshold with reset differential Delay Discharge temperature above a set threshold with reset differential a O Note the function can be activated on a maximum of 6 Fig 6 n compressors For star delta starting the star time the delay between the activation of the line and star digital input and between the delta and star digital input all need to be set as shown in the figure 37 pRack 0300011EN rel 1 2 04 12 2012 6 3 8 Liquid injection As an alternative to the economizer pRack PR100 can manage the injection of liquid into the compressors the two functions are alternative as the point of vapour injection into the compressor is the same The function can be enabled and the related parameters set in main menu branch E d a b E d b b Liquid injection is used to protect the compressor and in fact decreases he discharge temperature Operation is Similar to the economizer function with the difference that he expanded liquid is not sent to a heat exchanger but rather directly into the compressor The function is only activated when the compressor is on and the discharge temperature exceeds a set threshold with differential Note the function can be activated on a maximum of 6 compressors 6 3 9 Manual operation
56. branch C a f C b f Regulation request Rugg ng Step compressors capacity em am inverter capacity em Total capacity 6 3 7 Economizer Fig 6 m pRack PR100 can activate the economizer function to boost compressor efficiency by injecting vapour Some of the liquid is taken from the 6 3 4 Starting condenser expanded through a valve and then sent to a heat exchanger pRack PR100 can manage different types of compressor starting o cool the liquid leaving the condenser The resulting superheated gt fart vapour is injected into a special section of the compressor Part winding The function can be enabled and the related parameters set in main Star delta menu branch Caf The type of starting can be selected and the related parameters set in The function can be enabled and the related parameters set in main main menu branch Caf Cbf menu branch Caf For part winding starting the delay in activating the digital output that be Sconomizer is oniy ii I compressor activation Seo Nodi i ypically over 75 therefore the economizer function control valve is controls the second winding needs to be set i only activated when exceeding a set threshold As the economizer tends to increase the condensing pressure this needs Compressor request 1 o be controlled to ensure the high condensing pressure alarm is not generated In addition the injection of vapour decreases the discharge Line emperature and so this value also needs to
57. compressor 3 anual automatic Settable Settable Shutdown compressor 3 ALC20 Alarm 6 compressor 3 anual automatic Settable Settable Shutdown compressor 3 ALC21 Alarm 7 compressor 3 anual automatic Settable Settable Shutdown compressor 3 ALC22 Alarm 1 compressor 4 anual automatic Settable Settable Shutdown compressor 4 79 pRack 0300011EN rel 1 2 04 12 2012 CAREL Code Description Reset Delay Alarm relay Action ALC23 Alarm 2 compressor 4 anual automatic Settable Settable Shutdown compressor 4 ALC24 Alarm 3 compressor 4 anual automatic Settable Settable Shutdown compressor 4 ALC25 Alarm 4 compressor 4 anual automatic Settable Settable Shutdown compressor 4 ALC26 Alarm 5 compressor 4 anual automatic Settable Settable Shutdown compressor 4 ALC27 Alarm 6 compressor 4 anual automatic Settable Settable Shutdown compressor 4 ALC28 Alarm 7 compressor 4 anual automatic Settable Settable Shutdown compressor 5 ALC29 Alarm 1 compressor 5 anual automatic Settable Settable Shutdown compressor 5 AL
58. delay High suction pressure temperature alarm delay 120 s 0 999 Suction pressure tempe Type of low suction pressure temperature alarm threshold ABSOLUTE ABSOLUTE RELATIVE Cae26 rature low alarm Threshold Low suction pressure temperature alarm threshold ag ed Cae27 Alarm diff Low suction pressure temperature alarm differential se kar sl Alarm delay Low suction pressure temperature alarm delay 30 s 0 999 Enable oil temperature Enable Digital Scroll oil temperature alarm line 1 NO NO YES Cac28 alarm management _ Enable discharge temp Enable Digital Scroll discharge temperature alarm line 1 NO NO YES alarm management Low superheat alarm Threshold for low superheat alarm line 1 3 0 K 0 0 99 9 threshold Cae29 Alarm diff Low superheat alarm differential line 1 1 0 K 0 0 9 9 Switch OFF comp Enable compressor off for low superheat alarm line 1 NO zm NO YES Reset Type of low superheat alarm reset line 1 MANUAL n MANUAL AUTO Alarm delay Low superheat alarm delay line 1 30 s 0 999 Time of semi automatic Time of semi automatic alarm evaluation for screw compressors out 2 min 0 999 Cae30 alarm evaluation of envelope line 1 N of reties before alarm umber of retries before alarm becomes manual line 1 3 0 9 becomes manual Switch off comp 1 Enable compressor 1 off for compressor inverter warning line 1 NO NO YES Cae40 Reset Type of compressor inverter warning reset line 1 M
59. delay Liquid level alarm delay line 1 0 S 0 999 Oil alarm delay Common oil alarm delay line 1 0 s 0 999 Gca05 Output alarms relays Select alarm relay output activation for active alarms or alarms not reset Active Active alarms activation with alarms Alarms not reset The following parameters refer to line 2 for details see the corresponding parameters for line 1 above Gbb01 Prevent enable Enable condensing pressure prevent line 2 NO NO YES Common HP type Type of reset for common HP alarm line 2 AUTO AUTO Gcb01 AN Common HP delay Common high pressure delay line 2 10 S 0 999 Mask index Display description Description Default UOM Values H Info Ver Software version and date HO1 ET Bios Bios version and date display only Boot Boot version and date Board type Type of hardware Board size Hardware size Total flash Flash memory size kB RAM RAM size kB st display only Built In type Type of built in display None PGDI Main cycle Number of cycles per second and software cycle time cycles s ms Mask index Display description Description Default UOM Values Ka La SUF Pre configuration Pre configuration selected 01 RS2 NOT USED 108 SL5d 01 RS2 09 SW1 02 RS3 10 SW2 1301 03 RS3p 11 SW3 04 RS3i 12 d RS2 05 RS4 13 d RS3 06 RS4i 14 d RS4 07 SL3d la02 disp only Boards necessary pLAN boards required for the selected pre configuration la03 disp only Suction
60. desired menu item while accesses the selected item Screen for displaying setting the parameters An example of a screen for displaying setting the parameters is shown in the figure also highlighting the fields and icons used SUC tion press probe FRE ed d m Upper value Te berg Lower value ih Dar Calibration 6 Sbarco Fig 5 c Menu branch identifier 2 Screen identifier 3 Parameter The screen identifier uniquely identifies the menu branch and the screen the first characters indicate the menu branch while the last two alphanumeric digits identify the order of the screen inside the menu for example screen Bab01 is the first screen in menu B a b Note The information on the screens may vary according to the password level used to access the menu CAREL 5 3 Password pRack PR100 manages three levels of password User e Maintenance e Manufacturer Each level includes the same rights as the lower levels that is the Manufacturer can access all the screens and parameters the Maintenance can access the screens and parameters available in the Maintenance and User levels while the User can only access the screens and parameters available in the User level O Note All levels display the main screens and the other information screens When pressing Menu a prompt is shown to enter the password which remains active for 5 minutes after the last button is pressed The menu scree
61. digital outputs with electromechanical relays For ease of installation the common terminals of some of the relays have been grouped together The following figure illustrates a connection example If the following this diagram is used the current at the common terminals must not exceed the rating nominal current of a single terminal 8 A 110 230 24 Vac Fig 3 m The relays are divided into groups according to the degree of insulation Inside each group the relays have just basic insulation and thus must have the same voltage generally 24V ac or 110 to 230 Vac Between the groups there is double insulation and thus the groups can have different voltages There is also double insulation from the rest of the controller Changeover outputs Some relays feature changeover outputs the number of changeover outputs depends on whether or not there are solid state relays SSR and consequently varies depending on the models Hardware Version Changeover relay reference Terminal without SSR model PRK100 A and PRK100 B models Compact 1 J3 S 8 J15 M XL 8 12 13 J15 J17 18 L 8 12 13 14 15 J15 517 518 J21 PRK100 C and PRK100 D models Compact S M L XL 8 13 J15 J18 Tab 3 k 3 6 2 Solid state relay SSR digital outputs The pRack PR100 also features a Version with solid state relays SSR on some models for controlling devices that require an un
62. external SSRs the voltage supplied by pRack to the Vdc terminal can be used after having checked the maximum current draw of the active probes and the SSRs See paragraph 3 6 2 for the connection diagrams 2 2 3 Electrical specifications of the pRack PR100 M L XL boards Power supply 24 Vac 10 15 50 60 Hz e 28 36 Vdc 10 20 at least 50 VA for each board Maximum current with terminal connected 40 VA Vac 15 W Vdc Type of insulation of power supply from the rest of the controller Terminal block with male female plug in connectors 250 Vac max 8 A max Cable cross section min 0 5 mm max 2 5 mm CPU H852320 16 bit 24 MHz Program memory FLASH 2 2MByte Dual Bank at 16 bit Data memory RAM 512 Kbyte at 16 bit Parameter data memory EEPROM 13 Kbyte 32KByte Working cycle duration 0 2 s application of average complexity Clock with battery Available as standard Tab 2 q 2 24 Mechanical specifications of the pRack PR100 S M L XL boards Physical dimensions pRack PR100 S 13 DIN modules 110x227 5x60 mm pRack PR100 M L XL 18 DIN modules 110x315x60 mm Plastic case Assembly Fitted on DIN rail as per DIN 43880 and IEC EN 50022 Material Technopolymer Flame retardance VO UL94 and 960 C IEC 695 Ball pressure test 125 Resistance to creeping current gt 250V Colour Grey RAL7016 Tab 2 1 pRack 0300011EN rel 1 2 04 12 2012 18 CAREL
63. functions disabled LA28 Discharge temperature probe malfunction line 2 Automatic 60s R2 Related functions disabled LA29 Suction pressure probe malfunction line 2 Automatic 60s RI Related functions disabled LA30 Suction temperature probe malfunction line 2 Automatic 60s R2 Related functions disabled LA31 Condensing pressure backup probe malfunction Automatic 60s R2 Related functions disabled LA32 Condensing pressure backup probe malfunction line 2 Automatic 60s R2 Related functions disabled LA33 Suction pressure backup probe malfunction Automatic 60s R2 Related functions disabled LA34 Suction pressure backup probe malfunction line 2 Automatic 60s R2 Related functions disabled LA35 Common oil temperature probe malfunction Automatic 60s R2 Related functions disabled LA36 Common oil temperature probe malfunction line 2 Automatic 60s R2 Related functions disabled LA39 Discharge temperature probe malfunction compressors 1 to 6 Automatic 60s R2 Related functions disabled LA40 Discharge temperature probe malfunction compressors 1 to 6 line 2 Automatic 60s R2 Related functions disabled LA41 Oil temperature probe malfunction compressors 1 to 6 line 1 Automatic 60s R2 Related functions disabled LA42 Oil temperature probe malfunction compressor 1 line 2 Automatic 60s R2 Related functions disabled LBO1 Low suction pressure from pressure switch Semiautomatic Settable RI Shutdown compressor LBO2 High condensing pressure from pressure switch Manual automatic Sett
64. gt P gt P P gt gt P gt P gt gt gt P gt gt gt gt P gt gt gt P P gt gt gt P gt P gt gt gt P gt gt gt gt P gt gt gt gt P gt gt gt gt gt gt gt gt gt gt gt 2 Baa85 Cba42 arm 3 compressor 4 line 2 S Baa86 Cba43 arm 4 compressor 4 line 2 Baa87 Cba44 arm 5 compressor 4 line 2 Baa88 Cba45 arm 6 compressor 4 line 2 Baa89 Cba46 arm 7 compressor 4 line 2 Baa91 Cba53 arm 1 compressor 3 line 2 Baa92 Cba54 arm 2 compressor 3 line 2 Baa93 Cba55 arm 3 compressor 3 line 2 Baa94 Cba56 arm 4 compressor 3 line 2 Baa95 Cba57 arm 5 compressor 3 line 2 Baa96 Cba58 arm 6 compressor 3 line 2 Baa97 Cba59 arm 7 compressor 3 line 2 Baa98 Cba65 arm 1 compressor 4 line 2 N Baa99 cba66 arm 2 compressor 4 line 2 Baaaa Cba67 arm 3 compressor 4 line 2 a Baaab Cba68 arm 4 compressor 4 line 2 Baaac Cba69 arm 5 compressor 4 line 2 Baaad Cba70 arm 6 compressor 4 line 2 Baaae Cba71 arm 7 compressor 4 line 2 Baaag Cba78 arm 1 compressor 7 line 2 Baaah Cba79 arm 2 compressor 7 line 2 Baaai Cba84 arm 1 compressor 8 line 2 Baaaj Cba85 arm 2 compressor 8 line 2 Baaak Cba90 arm 1 compressor 9 line 2 Baaal Cba91 arm 2 compressor 9 line 2 Baaam Cba95 arm 1 compressor 10 line 2 Baaan Cba99 arm 1 compressor 11 line 2 Baaao Cbaad arm 1 compr
65. model only A connection example for using PlantVisor PRO and PlantWatch PRO is shown in the figure Field Bus El EEN CVSTDUMORO Fig 9 a The complete list of supervisor variables with the corresponding addresses and descriptions can be supplied upon request pRack 0300011EN rel 1 2 04 12 2012 CAREL 9 SUPERVISORY AND COMMISSIONING SYSTEMS 9 2 Commissioning software pRack Manager is configuration and real time monitoring software used to check the operation of pRack PR100 for commissioning debug and maintenance operations The software is available on the internet at http ksa CAREL com in the section download a support a software utilities The installation includes in addition to the program the user manual and the necessary drivers pRack Manager can be used to set the configuration parameters modify the values of volatile and permanent variables save graphs of the main system values to file manually manage the unit I Os using simulation files and monitor reset alarms on the unit where the device is installed pRack PR100 is able to virtualise all the inputs and outputs both digital and analogue therefore each input and output can be overridden by pRack Manager pRack Manager manages lt file name gt DEV files that contain the user parameter configurations and that can be downloaded from the pR
66. no 1 24 Vac Vdc J5 2 D2 digital input no 2 24 Vac Vdc J5 3 D3 digital input no 3 24 Vac Vdc J5 4 D4 digital input no 4 24 Vac Vdc J5 5 D5 digital input no 5 24 Vac Vdc J5 6 D6 digital input no 6 24 Vac Vdc J5 7 D7 digital input no 7 24 Vac Vdc J5 8 D8 digital input no 8 24 Vac Vdc J5 9 DCI common for digital inputs from 1 to 8 negative pole for DC power supply J6 1 B6 universal analogue input 6 NTC 0 to 1 V 0 to 5 V ratiometric 0 10 V 0 20 mA 4 20 mA J6 2 B7 universal analogue input 7 NTC 0 to 1 V 0 to 5 V ratiometric 0 10V 0 20 mA 4 20 mA J6 3 B8 universal analogue input 8 NTC 0 to 1 V 0 to 5 V ratiometric 0 10 V 0 20 mA 4 20 mA J6 4 GND common for analogue inputs J7 1 D9 digital input no 9 24 Vac Vdc J7 2 D10 digital input no 10 24 Vac Vdc J7 3 D11 digital input no 11 24 Vac Vdc M L XL J7 4 D12 digital input no 12 24 Vac Vdc J7 5 DC9 common for digital inputs from 9 to 12 negative pole for DC power supply J8 1 D13H digital input no 13 230 Vac J8 2 D13 digital input no 13 24 Vac Vdc J8 3 DC13 common for digital inputs 13 and 14 negative pole for DC power supply J8 4 D14 digital input no 14 24 Vac Vdc J8 5 D14H digital input no 14 230 Vac Jo 8 pin telephone connector for connecting a display terminal not used J10 6 pin telephone connector for connecting the standard pGD1 user terminal J11 1 RX TX RX TX connector for RS485 connection to the pLAN network J11 2 RX TX
67. of the modulating device is proportional to the number of fans therefore the first case is applied as described in paragraph 6 3 3 fans all with the same power and modulating device power variation range greater than or equal to the capacity of the other devices Example 1 4 fans all controlled by the same inverter correspond to 1 fan with four times the power Note some fans can be excluded from the rotation for example in the winter to do this use the split condenser function described in paragraph 6 4 5 6 4 3 Fast start speed up pRack PR100 can manage the fast start function speed up used to overcome the initial inertia of the fans The function can be enabled and the related parameters set in main menu branch D a g D b g If speed up is enabled a start time can be set in which the fan speed is forced to 100 If the outside temperature sensor is used moreover a threshold can be set with reset differential below which speed up is disabled so as to not drastically lower the condensing pressure at start up Note speed up has lower priority than the Silencer function see the following paragraph for the details therefore if the Silencer function is active this is disabled 41 6 4 4 Silencer pRack PR100 can manage the Silencer function used to limit fan speed at certain times of the day or in specific conditions enabled by digital input The function can be enabled and the related paramet
68. on dedicated board b91 Fans number umber of fans line 1 3 O to 16 Modulate speed device Fan modulating speed device line 1 ONE ONE b92 NVERTER PHASE CONTROL Regulation by Fans control by temperature or pressure value line 1 PRESSURE SS PRESSURE TEMPERATURE Measure unit Unit of measure line 1 barg a Refrigerant Type of refrigerant condenser line 1 R404A R22 R134a R404A R407C R410A R507A R290 R600 933 R600a R717 R744 R728 R1270 R417A R422D R413A R422A R423A R407A R427A R245Fa R407F R32 Regulation type Fan control type line 1 PROPORTIONAL PROPORTIONAL BAND b94 BAND EUTRAL ZONE Enable integral time Enable integral time for proportional band control NO O YES action b95 Setpoint Setpoint without compensation condenser line 1 12 0 barg EEN LEE Differential Differential condenser line 1 2 0 barg ELLE b96 Configure another Second condenser line configuration NO O YES condensing line bla Fans number umber of fans line 2 3 0 16 ble Differential Differential condenser line 2 2 0 barg ai A ERE OS Type of Installation Type of plant SUCTION SUCTION c01 CONDENSER CONDENSER SUCTION CONDENSER c02 Measure Units Unit of measure C barg C barg F psig c03 Number of suction lines Number of suction lines 1 0 2 c04 Dedicated pRack board Suction lines are on different boards NO NO YES for suction line Compressors type Type of compressors lin
69. override is active e g times display only alarms start up procedure C12 Capacity delivered by compressor 12 line 1 0 100 Aa05 Temperature Suction temperature line 1 Bee display only Superheat Superheat line 1 PE 89 Aall Disch 1 Discharge temperature compressor 1 line 1 Mi display only Disch 6 Discharge temperature compressor 6 line 1 el Liq inj 1 DO Number of digital output associated and status of liquid injection kg 0 29 ON OFF Aa13 economizer compressor 1 line 1 display only Liq inj 6 DO Number of digital output associated and status of liquid injection 0 29 ON OFF economizer compressor 6 line 1 Discharge temperature Digital ScrollTM compressor discharge temperature line 1 EE Cap reduction Digital ScrolITM compressor capacity reduction in progress line 1 NO YES Aal 5 Oil sump temp Digital ScrolITM compressor oil sump temperature line 1 F R display only Oil status Digital ScrollTM compressor oil dilution status line 1 Ok Dilute Status Digital ScrolITM compressor operating status line 1 Off Off by time Start up On by time On Mod manual Alarm In pump down Aal6 Countdown Digital ScrolITM compressor time count line 1 0 999 displ Compr Digital ScrolITM compressor status line 1 OFF play only ON Valve Digital ScrollTM valve status line 1 OFF ON Reguested cap Digital ScrolITM compressor capacity required line 1
70. pR100 assigns the correct output and generates a warning message if this is not possible For example if the compressors use an inverter and the fans use phase control pRack pR100 Compact assigns analogue output 2 to the compressor inverters and analogue output 1 to the fan modulating device pRack 0300011EN rel 1 2 04 12 2012 5 1 Graphic terminal The pRack PR100 user interface is represented by the pGD1 terminal panel or built in versions The functions associated with the 6 buttons on the pGD1 terminal are the same on all the screens and are described in the table below Functions of the 6 buttons Button Function associated D ALARM displays the list of active alarms and accesses the alarm log Menu used to enter the main menu tree Esc returns to the higher level screen A Wun scrolls a list upwards or increases the value highlighted by the cursor scrolls a list downwards or decreases the value 4 ou highlighted by the cursor ENTER entersthe selected submenu or confirms the set value Tab 5 a The LEDs associated with the buttons have the following meanings Meaning of LEDs LED Meaning Red Flashing active alarms present and not acknowledged Steady alarms present and acknowledged Yellow pRack PR100 on Green pRack PR100 powered Tab 5 b 5 2 Description of the display There are three fundamental types of screens shown to the user e Main screen e Menu s
71. pressure P1 P2 P3 Suction pressure Fig 6 t pRack PR100 can also manage the variation in the envelope as the capacity delivered changes for example in the case of variation in frequency for inverter driven compressors Note for further details on configuration of the envelope contact Carel 6 4 Fans pRack PR100 can manage up to 2 condenser lines with up to 16 fans and one speed modulation device each applying common types of device rotation and controlling both the starting mode and some accessory functions The modulation device may be an inverter or a phase fired controller The fan functions and related parameter settings are enabled from main menu branch D a D b The functions are described in detail below pRack 0300011EN rel 1 2 04 12 2012 40 CAREL 6 4 1 Control pRack PR100 can manage as described in paragraph 6 2 proportional band and Neutral zone control by pressure or temperature For details on the control modes see the corresponding paragraph while below is the description only of the features relating to the fans Fan operation depending on the compressors The operation of the fans can be bound to the operation of the compressors by setting a parameter in main menu branch D a b D b b in this case the fans only start if at least one compressor is on This setting is ignored if the fans are controlled by a dedicated pRack PR100 board and the pLAN network is disconnected
72. pressure temperature alarm threshold line 1 7 0 barg MES Cond pressure tempera Low condensing pressure temperature alarm differential line 1 1 0 barg EECH Dae04 ure alarm diff Alarm delay Low condensing pressure temperature alarm delay line 1 30 S 0 999 Common fan overload Common fan overload line 1 YES NO YES Dae05 Delay Common fan overload alarm activation delay AUTOMATIC AUTOMATIC MANUAL Reset Type of common fan overload alarm reset 0 S 0 to 500 Daf01 umber of present fans Number of fans line 1 3 Oto 16 Daf02 Fan Fan2 Enable fans 1 to 12 line 1 EN DIS EN Dafo3 Fan13 Fan14 Enable fans 13 to 16 line 1 EN DIS EN 59 pRack 0300011EN rel 1 2 04 12 2012 CAREL Mask index Display description Description Default UOM Values Refrigerant type Type of refrigerant condenser line 1 R404A R22 R134a R404A R407C R410A R507A R290 R600 R600a R717 R744 R728 ar R1270 R417A R422D R413A R422A R423A R407A R427A R245Fa R407F R32 Devices rotation type Type of rotation devices condenser line 1 FIFO FIFO Daf05 LIFO TIME CUSTOM Daf07 Daf08 Custom rotation Switch ON order for fans with custom rotation condenser line 1 1 L i Switch ON order Custom rotation Switch OFF order for fan
73. probe malfunction B 6 7 8 9 T ee LA r ed LA Generic probe malfunction C Generic probe malfunction D Generic probe malfunction E T Og Ww vu Divo vv vv vv Dvd w N o m dd daad Rd JD JD J RARR N 0 0 N N N N RR Rd N N Raad DIEEDID E EEEIEE EEEIEE LA Generic probe malfunction A PLB4 Automatic 60s R2 Related functions disabled LA20 Generic probe malfunction B PLB4 Automatic 60s R2 Related functions disabled LA21 Generic probe malfunction C PLB4 Automatic 60s R2 Related functions disabled LA22 Generic probe malfunction D PLB4 Automatic 60s R2 Related functions disabled LA23 Generic probe malfunction E PLB4 Automatic 60s R2 Related functions disabled LA24 Suction pressure probe malfunction Automatic 60s RI Related functions disabled LA25 Suction temperature probe malfunction Automatic 60s R2 Related functions disabled LA26 Room temperature probe malfunction Automatic 60s R2 Related functions disabled LA27 Condensing pressure probe malfunction line 2 Automatic 60s RI Related
74. probes AK IE 4 20 mA active pressure probes SPK2 SPK3 SS NIC NTC temperature probes 50T90 C NTC HT NTC temperature probes 0T150 C Tab 1 f pRack 0300011EN rel 1 2 04 12 2012 8 CAREL 1 3 Systemconfigurationsandinputandoutput configuration pRack PR100 manages 35 possible system configurations with up 2 suction lines and up to 2 condenser lines on individual boards or on more than one board connected in a pLAN network The configuration of the inputs and outputs therefore varies according the selected system configuration e e Note Each input output can be fully configured with the only limits being set by the system configuration for example the suction pressure probe on line 1 can be configured on any one of the analogue inputs that is compatible with the type of probe on the pLAN board with address pRack PR100 also provides fourteen configurations pre loaded in the software These configurations are complete with all the parameters need to start the unit For the details on the pre configurations available see the Quick Guide 040000070 For further details on selecting the system configuration and the pre configurations see Chapter 4 1 3 1 System configurations available pRack PR100 can manage system configurations with up to 2 suction lines maximum 12 scroll or piston compressors for lines 1 and 2 or 2 screw compressors for line 1 and up to 2 condenser lines maximum 16
75. subcooling function line 1 Se Open Closed Cond temp Saturated condensing temperature line 2 ie wee Aaa4 Liquid Temp Liquid temperature line 2 A EE display only Subcooling Subcooling line 2 Se ud Status Status of subcooling function line 2 Open Closed Action Description and status of the reduced power consumption action associated be OFF ON Aaa4 display with the first digital input from pLoads line 1 only Action Descrip ion and sta uso he reduced power consumption action associated _ e OFF ON with the second digital input from pLoads line 1 Mn Descrip ion and sta Us he reduced power consumption action associated _ le OFF ON Aaa5 display with the first digital input from pLoads line 2 only Description and status of the reduced power consumption action associated e Action 2 with the second digital input from pLoads line 2 OFF ON Current Value read by the current sensor line 1 A 0 to 999 9 Aaa6 display Inst power nstant power calculated line 1 KW Oto 100 only Power today Power consumption during the current day line 1 kWh 0to 32767 Previous Power consumption during the previous day line 1 kWh JO to 32767 User setp User defined set point for suction pressure control proportional control _ vag Ab01 line 1 i Actual setpoint Effective set point for suction pressure control proportional control with _ Ka wot display only e compensation applied l
76. the control using the pRack Manager software following the procedure described in Chap 10 After having selected the user interface language the pRack PR100 software shows a screen for choosing between three possible system configuration solutions as follows Pre configurations e Wizard Advanced configuration Important after having configured the system the configuration can be modified it can be modified by repeating the same procedure making sure the Carel default values have been reset as described in paragraph 6 8 2 Important after having configured the system power down the controller and power up again Summary of pre configurations CAREL 4 START UP 4 1 1 Pre configurations Bo LEST Ei PRECIO GURU ICH MPI ONS FI Zoe KOMET a SPEL S N ai LES TSE Fig 4 a This solution is used to choose between fourteen configurations pre loaded in the pRack PR100 software For the description of the pre configurations see the table below while for the complete description of each configuration see Appendix A1 pRack PR100 automatically configures the inputs and outputs as described in paragraph 4 1 4 for details on the inputs and outputs associated with each pre configuration see the quick guide code 040000070 4 1 2 Wizard Fig 4 b This solution is used to obtain the recommended configuration for the specific installation By responding to a series of questions screen by scr
77. unit OFF See values on screen for single line Compressor activation percentage with unit ON line 1 0 100 Compressor activation percentage with unit ON line 2 0 100 Fan activation percentage with unit ON line 1 0 100 Fan activation percentage with unit ON line 2 0 100 Hours and minutes Suction Date E L1 Suction pressure or temperature line 1 si L2 Suction pressure or temperature line 2 ma Condensing Condensing pressure or temperature MG Main screen for L1 Suct temp Suction temperature line 1 Ma double suction L1 Disch temp Discharge temperature line 1 MG line and single L1 Superheat Superheat line 1 soeke condenser line L2 Sucttemp Suction temperature line 2 mu display only L2 Disch temp Discharge temperature line 2 ES L2 Superheat Superheat line 2 I o Unit status with unit OFF See values on screen for single line Compressor activation percentage with unit ON line 1 0 100 Compressor activation percentage with unit ON line 2 0 100 Fan activation percentage with unit ON line 1 0 100 pRack 0300011 EN rel 1 2 04 12 2012 48 CAREL
78. when buying new equipment CAREL may based on specific agreements act as a consultant for the positive the equipment may contain hazardous substances the improper use or commissioning of the final unit application however in no case does it accept incorrect disposal of such may have negative effects on human health and on iability for the correct operation of the final equipment system he environment he symbol crossed out wheeled bin shown on the product or on the packaging and on the instruction sheet indicates that the equipment has been introduced onto the market after 13 August 2005 and that it must be disposed of separately in the event of illegal disposal of electrical and electronic waste the penalties are specified by local waste disposal legislation INFORMATION FOR USERS ON THE CORRECT HANDLING OF WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT WEEE In reference to European Union directive 2002 96 EC issued on 27 January 2003 and the related national legislation please note that The CAREL product is a state of the art product whose operation is specified in the echnical documentation supplied with the product or can be downloaded even prior to purchase from the website www CAREL com Each CAREL product in relation to its advanced level of technology requires setup configuration programming commissioning to be able to operate in the best possible way for the specific application The failure to complete such
79. 0 10 Vdc and 470 Q 10 mA for PWM Tab 2 d Note the synchronicity for the PWM phase control output is taken from the SYNC input and GO J2 Digital outputs Important The outputs can be divided into groups depending on the insulation distance The relays belonging to the same group have basic insulation between each other and therefore must have the same power supply 24 Vac or 110 to 230 Vac Between groups there is double insulation and consequently these may have different voltages Models PRK100X A amp PRK100X B Makeup of the groups Type of relay Group 1 J3 Group 2 J10 Group 3 J11 Type A Available with NC and Type A Available with NO Type B Available with NO contacts NO contacts contacts Features MOSFET photovoltaic relay SPST 1250 VA 250 Vac 5 A resistive Operating voltage 24 Vac Vdc UL873 1 A resistive 1 A FLA 6 A LRA 250 Vac Maximum power 10 W D300 pilot duty 30 000 cycles EN 60730 1 1 A resistive 1 A inductive cosp 0 6 1 1 A 100 000 cycles Maximum number 7 No of changeover contacts None Number of SSR outputs 2 outputs NO1 and NO2 J3 and J10 Tab 2 e 11 pRack 0300011EN rel 1 2 04 12 2012 Models PRK100X C amp PRK100X D CAREL Makeup of the groups Type of relay Group 1 J3 Group 2 J10 Group 3 J11 Type A Type A Type B Available with NC and NO contacts Available with NO contacts Available with NO contacts
80. 0 9999 dure after inimum voltage Voltage corresponding to the minimum capacity of the inverter line 1 10 0 V 0 0 10 0 aximum voltage Voltage corresponding to the maximum capacity of the inverter line 1 1100 V 0 0 10 0 Cag01 ominal freq ominal frequency nominal capacity at nominal frequency line 1 50 Hz 0 150 ominal power ominal capacity for compressor managed by inverter at nominal 10 0 kW 0 0 500 0 frequency line 1 Rising time Time to pass from min capacity to max capacity for modulating device 90 s 0 600 Cago2 line 1 e Falling time ime to pass from max capacity to min capacity for modulating device 30 s 0 600 line 1 Enable compressor Enable compressor 1 modulation inside Neutral zone line 1 YES O YES Cag03 modulation inside neutral zone Cago4 Enable suction press Enable screens for suction pressure backup probe configuration O ze O YES backup probe line 1 Cagos Request in case of regulat Compressor forcing value in case of suction probes fault line 1 50 0 0 0 100 0 probe fault Cag06 geg e anti liquid return Enable liquid non return function line 1 O Kg O YES valve Cago7 Enable compressor enve Enable compressor envelope management screw only O O YES lop management For details on configuration contact Carel The following parameters refer to line 2 for details see the corresponding parameters for line 1 above
81. 0 boardcompletes the start up sequence and uses the set address A3 Example of configuring a system with 2 suction and condenser lines using the Wizard Below is a possible example of using the Wizard to configure a typical system like the one shown in the figure with 2 suction lines and 2 condenser lines on different boards sa VO VO CC nnn Tann free lei VO elg Fig A q 77 pRack 0300011EN rel 1 2 04 12 2012 The preliminary operations to be completed before configuration are as follows 1 withtheboardsnotconnectedinthe pLAN powerupthesecondpRack board and set the pLAN address to 2 for details see Appendix A 2 2 powerdownandconnectthetwoboardsinthepLAN plusanyterminals as described in paragraph 3 7 3 power up the boards and wait for the Wizard selection screen to be displayed Then select the type of system as SUCTION amp CONDENSER Fig A r Set the type of compressors and control for suction line 1 answering the questions prompted by the pRack PR100 software e g Fig A t After having configured suction line 1 a prompt will be shown to configure another suction line obviously the answer is YES lone DOr Ga Eee aie EE ZsUCt ih Line YES Fig A v To the next question which prompts if there is a pRack board dedicated to the second line answer YES in this way t
82. 00 can manage 3 types of high condensing pressure prevention actions involving overriding the compressors and fans activating heat recovery e activating ChillBooster Prevent by overriding the compressors and fans The parameters relating to this function can be set in branch G b a G b b of the main menu The effect of this type of prevent action is to force all the fans on at maximum and switch all the compressors off except for the minimum capacity stage ignoring the control times but observing the compressor protection times The minimum capacity stage means one compressor in the case of compressors without capacity control and modulation devices or the minimum capacity stage for capacity controlled compressors e g 25 or alternatively the minimum output of the modulation device in the case of inverters Digital Scroll compressors or screw compressors with continuous modulation As well as the activation threshold which is always absolute and the activation differential a compressor deactivation time can be set corresponding to the time needed to switch off all the compressors except for the minimum capacity stage In addition both the monitoring time and the number of activations in the specified period can be set If the number of activations is higher reset becomes manual Prevent by activating heat recovery The parameters corresponding to this function can be set in branch G b a G b b of the main menu
83. 2 4 1 Starting the first time After having correctly installed pRack a number of preliminary operations are required to configure the installation Tutorial the pRack PR100 configuration procedure varies according to the complexity of the installation A systems with only one board and maximum one external terminal In this case simply connect the terminal if not built in power up the board and select one of the configuration solutions described below B systems with more than one board in pLAN or two external terminals Iln this case the additional operations described in Appendix A 2 need to be completed before proceeding with configuration The procedure for configuring an installation described below is the same for all system configurations that feature just one pRack PR100 board and for system configurations with more than one board connected in a pLAN When first starting the pRack PR100 board after waiting around 1 minute a screen is shown for choosing the language used to display the program English or Italian Press ENTER to change the language displayed while pressing ESC displays the following screen Note If no option is chosen within a time set by parameter and visible on the screen the current language remains selected Note pRack PR100 is available as standard with English and Italian languages loaded on board Other languages are available at ksa carel com that can be loaded onto
84. 2 5 020 normally open contact relay no 20 J22 6 C17 common for relay no 17 18 19 20 J23 E terminal E for RS485 connection to the VO expansion modules not used L XL 523 2 E terminal E for RS485 connection to the I O expansion modules not used J23 3 GND GND terminal for RS485 connection to the VO expansion modules not used J24 Vterm additional power supply terminal Aria not used S M L XL 11242 GND power supply common J24 3 5 Vref power supply for 0 5 V ratiometric probes depending on model Tab 2 k 2 2 2 Technical specifications of the pRack PR100 S M L XL boards Analogue inputs Analogue conversion 10 bit A D converter embedded in CPU Maximum number pRack pR100 S pRack pR100 M XL pRack pR100 L 5 8 10 Type Universal 6 inputs B1 B2 B3 B6 B7 B8 CAREL NTC 50T90 C R T 10 kN 1 at 25 C or HT NTC 0T150 C Voltage 0 to 1 Vdc 0 to 5 Vdc ratiometric or 0 to 10 Vdc Current 0 to 20 mA or 4 to 20 mA Input resistance 1000 Passive 4 inputs B4 B5 B9 B10 CAREL NTC 50T90 C R T 10kQ 1 at 25 C PT1000 100T200 G R T 1 KO to 0 C or digital input from voltage free contact Selectable via software Minimum normally open voltage free digital input Normally open open closed open 250 ms detection time Normally closed closed open closed 250 ms NTC input precision 05 C PT1000 input precision EIE 0 1 V input precision 3mV 0 10 V
85. 2012 82 CAREL Mask Index Description Chan Logic Notes Ac08 Baacy Unit ON OFF line 2 Baaap Cbaah Common low pressure switch line 2 Baadb Cba14 Compressor inverter warning line 2 Baaar Cbaaj Common oil alarm line 2 Baa61 Cba01 arm 1 compressor 1 line 2 Baa62 Cba02 arm 2 compressor 1 line 2 Baa63 Cba03 arm 3 compressor 1 line 2 Baa64 Cba04 arm 4 compressor 1 line 2 Baa65 Cba05 arm 5 compressor 1 line 2 Baa66 Cba06 arm 6 compressor 1 line 2 Baa67 Cba07 arm 7 compressor 1 line 2 Baa68 Cba15 arm 1 compressor 2 line 2 Baa69 Cba16 arm 2 compressor 2 line 2 Baa70 Cba17 arm 3 compressor 2 line 2 Baa71 Cba18 arm 4 compressor 2 line 2 Baa72 Cba19 arm 5 compressor 2 line 2 Baa73 Cba20 arm 6 compressor 2 line 2 Baa74 Cba21 arm 7 compressor 2 line 2 Baa76 Cba28 arm 1 compressor 3 line 2 Baa77 Cba29 arm 2 compressor 3 line 2 Baa78 Cba30 arm 3 compressor 3 line 2 Baa79 Cba31 arm 4 compressor 3 line 2 Baa80 Cba32 arm 5 compressor 3 line 2 Baa81 Cba33 arm 6 compressor 3 line 2 Baa82 Cba34 arm 7 compressor 3 line 2 Baa83 Cba40 arm 1 compressor 4 line 2 Baa84 Cba41 arm 2 compressor 4 line 2 gt P P gt P P gt gt
86. 54 CO1 Size group for compressor 1 line 1 or presence of inverter SI S1 S4 INV b76 SA D Em d C12 Size group for compressor 6 line 1 S1 S1 54 b60 Compressors sizes Compressors sizes line 1 SAME SAME CAPACITY CAPACITY DEFINE SIZES EN Enable size and size for compressor group 1 line 1 YES ss NO YES kW 0 0 500 0 b 1 ga es Se S4 Enable size and size for compressor group 4 line 1 NO sa NO YES KW 0 0 500 0 CO1 Size group for compressor 1 line 1 or presence of inverter S1 Sos S1 S4 INV b62 a geg Mi Se C12 Size group for compressor 6 line 1 S1 S1 54 Regulation by Compressor control by temperature or pressure line 1 PRESSURE PRESSURE TEMPERATURE Measure unit Unit of measure line 1 barg va Refrigerant Type of refrigerant suction Line 1 R404A R22 R134a R404A R407C Ib R410A R507A R290 R600 80 R600a R717 R744 R728 R1270 R417A R422D R413A R422A R423A R407A R427A R245Fa R407F R32 Regulation type Compressor control type line 1 EUTRAL ZONE PROPORTIONAL BAND b81 EUTRAL ZONE Enable integral time Enable integral time for proportional suction line control line 2 O ke O YES action b82 Setpoint Setpoint without compensation suction line 2 3 5 barg Eu Differential Differential suction line 2 0 3 barg 1 Dedicated pRack board Suct line s and cond line s on different boards that is condenser O IO YES b90 R A or condenser line ine s
87. 999 9 Enable setpoint compen Enable scheduler setpoint compensation suction line 1 NO er NO YES Cad03 i sation by scheduler Activ Time Bands Day of the week MON TUE SUN TB1 gt Time band 1 enabling and definition start hour and minute end hour and minute suction line 1 TB4 gt Time band 4 enabling and definition start hour and minute end hour and minute suction line 1 Cad04 Changes Time band change action CONFIRM amp SAVE LOAD PREVIOUS CLEAR ALL Copy to Copy settings to other days 0 MONDAY SUNDAY MON FRI MON SAT SAT amp SUN ALL DAYS Cad05 Change set by DI Enable setpoint compensation by digital input suct cond line 1 NO NO YES Position of the probe for suction pressure setpoint compensation line1 B1 B10 Type of the probe for suction pressure setpoint compensation line1 4 20MA Cad06 0 1V 0 10V 4 20mA 0 5V display only Compensation value line 1 99 9 99 9 max aximum value of compensation line 1 99 9 99 9 min inimum value of compensation line 1 99 9 99 9 Cadog Enable floating suction Enable floating setpoint suction line 1 NO NO YES setpoin Maximum floating ax compressor floating setpoint settable line 1 JC D Gel Cad09 pin Minimum floating inimum compressor floating setpoint settable line 1 EY Bee setpoin Max setpoint variation aximum delta admitted for floating setpoint
88. ALC78 Alarm 6 compressor 4 line 2 anual automatic Settable Settable Shutdown compressor 4 line 2 ALC79 Alarm 7 compressor 4 line 2 anual automatic Settable Settable Shutdown compressor 4 line 2 ALC80 Alarm 1 compressor 5 line 2 anual automatic Settable Settable Shutdown compressor 5 line 2 ALC81 Alarm 2 compressor 5 line 2 anual automatic Settable Settable Shutdown compressor 5 line 2 ALC82 Alarm 3 compressor 5 line 2 anual automatic Settable Settable Shutdown compressor 5 line 2 ALC83 Alarm 4 compressor 5 line 2 anual automatic Settable Settable Shutdown compressor 5 line 2 ALC84 Alarm 5 compressor 5 line 2 anual automatic Settable Settable Shutdown compressor 5 line 2 ALC85 Alarm 6 compressor 5 line 2 anual automatic Settable Settable Shutdown compressor 5 line 2 ALC86 Alarm 7 compressor 5 line 2 anual automatic Settable Settable Shutdown compressor 5 line 2 ALC87 Alarm 1 compressor 6 line 2 anual automatic Settable Settable Shutdown compressor 6 line 2 ALC88 Alarm 2 compressor 6 line 2 anual automatic Settable Settable Shutdown compressor 6 line 2 ALC89 Alarm 3 compressor 6 line 2 anual automatic Settable Settable Shutdown compressor 6 line 2 ALC90 Alarm 4 compressor 6 line 2 anual automatic Settable Settable Shutdown compressor 6 line 2 ALC91 Alarm 5 compressor 6 line 2 anual automatic Settable Settable Shutdown compressor 6 line 2 ALC92 Alarm 6 compressor 6 line 2 anual automatic Settable Settable Shutdown compres
89. ANUAL me MANUAL AUTO Alarm delay Compressor inverter warning activation delay line 1 0 S 0 999 Compressors type Type of compressors line 1 RECIPROCA RECIPROCATING TING SCROLL Caf02 SCREW Compressors number Number of compressors line 1 2 3 1 6 12 Caf03 Cmp1 Enable compressors line 1 DIS he DIS EN Refrigerant type Type of refrigerant suction Line 1 R404A R22 R134a R404A R407C R410A R507A R290 R600 R600a R717 R744 R728 SEN R1270 R417A R422D R413A R422A R423A R407A R427A R245Fa R407F R32 Min on time Minimum compressor on time line 1 30 s 0 999 Cafos Min off time Minimum compressor off time line 1 120 s 0 999 Min time to start same Minimum time between same compressor starts line 1 360 s 0 999 compressor Ignition type Type of compressors start up DIRECT DIRECT Caf06 PART WINDING STAR DELTA Star time Star relay run time 0 ms 0 9999 Caf07 Star line delay Delay between star and line relay 0 ms 0 9999 Star delta delay Delay between star and delta relay 0 ms 0 9999 Caf08 Partwinding delay Partwinding delay 0 ms 0 9999 Caf09 Equalization Enable compressors equalization at start up NO NO YES Equalizat time Equalization duration 0 S 0 999 Devices rotation type Type of rotation FIFO e FIFO Caf10 LIFO TIME CUSTOM Dev unload sequence Unloader sequence in relation to compressor activation C compressor CpppCppp Cafi p unloader C
90. B Type B Type B Number of changeover pRack PR100 S 1 output 8 J15 contacts pRack PR100 M XL 3 outputs 8 12 e 13 J15 J17 J18 pRack PR100 L 5 outputs 8 12 13 14 e 15 J15 J17 J18 J21 Relay Type Relay ratings SPDT 2000 VA 250 Vac 8 A resistive A Approval UL873 2 5 A resistive 2 A FLA 12 A LRA 250 Vac C300 pilot duty 30 000 cydles Switchable power EN 60730 1 2 Aresistive 2 A inductive cosp 0 6 2 2 A 100 000 cycles Relay Type Relay ratings SPDT 1250 VA 250 Vac 5 A resistive B Approval UL873 2 5 A resistive 2 A FLA 12 A LRA 250 Vac C300 pilot duty 30 000 cycles EN 60730 1 2 Aresistive 2 A inductive cosp 0 6 2 2 A 100 000 cycles Number of SSR outputs nessuna Tab 2 p Important the groups that the digital outputs are divided into have two common pole terminals to Simplify wiring Make sure that the current running through the common terminals does not exceed the rated current of an individual terminal that is 8 A To connect the digital outputs use a cable with minimum cross section of 1 5 mm p Important the following rules must be observed for the SSR digital outputs otherwise they may be damaged control only resistive loads with a maximum power of 10 W to control inductive loads use an external relay to power resistive loads or the external relay use the same power supply as pRack Compact terminals G G0 that must be dedicated and not common with other devices in the case of
91. C30 Alarm 2 compressor 5 anual automatic Settable Settable Shutdown compressor 5 ALC31 Alarm 3 compressor 5 anual automatic Settable Settable Shutdown compressor 5 ALC32 Alarm 4 compressor 5 anual automatic Settable Settable Shutdown compressor 5 ALC33 Alarm 6 compressor 5 anual automatic Settable Settable Shutdown compressor 5 ALC34 Alarm 7 compressor 5 anual automatic Settable Settable Shutdown compressor 5 ALC35 Alarm 7 compressor 5 anual automatic Settable Settable Shutdown compressor 5 ALC36 Alarm 1 compressor 6 anual automatic Settable Settable Shutdown compressor 6 ALC37 Alarm 2 compressor 6 anual automatic Settable Settable Shutdown compressor 6 ALC38 Alarm 3 compressor 6 anual automatic Settable Settable Shutdown compressor 6 ALC39 Alarm 4 compressor 6 anual automatic Settable Settable Shutdown compressor 6 ALC40 Alarm 5 compressor 6 anual automatic Settable Settable Shutdown compressor 6 ALC41 Alarm 6 compressor 6 anual automatic Settable Settable Shutdown compressor 6 ALC42 Alarm 7 compressor 6 anual automatic Settable Settable Shutdown compressor 6 ALC43 Alarm 1 compressor 7 anual automatic Settable Settable Shutdown compressor 7 ALC44 Alarm 2 compressor 7 anual automatic Settable Settable Shutdown compressor 7 ALC45 Alarm 1 compressor 8 anual automatic Settable Settable Shutdown compressor 8 ALC46 Alarm 2 compressor 8 anual automatic Settable Settable Shutdown compressor 8 ALC47 Alarm 1 compressor 9 anual automatic Settable Sett
92. C5 1 S M L XL 5 Vref black power supply B4 B5 2 GND green power supply reference L BC4 BC5 BC9 BC10 1 B1 B2 B3 B6 B7 B8 white Signal B4 B5 B9 B10 2 Tab 3e Tab 3 c Important for correct measurement by the PT1000 sensor each sensor wire needs to be connected to a dedicated terminal as shown in Fig 3 b Note the two wires of the PT1000 sensors are eguivalent as they have no polarity therefore it is not necessary to follow any specific order when connecting to the terminal block pRack 030001 1EN rel 1 2 04 12 2012 3 3 5 Connecting 0 10 V active probes PRack PR100 can be connected to 0 10 V sensors The inputs must be set for 0 10V Signals from the user terminal or using the default value installation procedure The connection diagram is shown below 3 3 7 CAREL Remote connection of the analogue inputs The Sizes of the cables for the remote connection of the analogue inputs are shown in the following table Type of input Size mm for length up to 50 m Size mm for length up to 100 m field card Fig 3 e Hardware Version Terminals Description Compact VDC power supply any GND reference B1 B2 B5 B6 Signal S M L XL VDC power supply any GND reference B1 B2 B3 B6 B7 B8 Signal Tab 3 f 3 3 6 ConnectingtheanalogueinputsselectedasON OFF The pRack PR100 allows some analogue inpu
93. Cpppppp CpppCppp Load up time Delay between different compressor starts 10 S 0 999 Caf12 Load down time Delay between different compressor stops 0 S 0 999 Unloader delay Delay between stages 0 S 0 999 z Custom rotation Order of switch ON for compressor custom rotation 1 Ta 16 Caf13 e Switch ON order i Custom rotation Order of switch OFF for compressor custom rotation 1 1 16 Caf14 Switch OFF order Modulate speed device Compressor driver type line 1 NONE NONE Caf15 INVERTER DIGITAL SCROLL CONTINUOUS SCREW pRack 0300011EN rel 1 2 04 12 2012 56 CAREL Mask index Display description Description Default UOM Values Cafl6 Min freguency Minimum inverter freguency 30 Hz 0 150 Max frequency Maximum inverter frequenc 60 Hz 0 150 Min on time Compressor controlled by inverter minimum ON time line 1 30 S 0 999 Caf17 Min off time Compressor controlled by inverter minimum OFF time line 1 60 s 0 999 Min time to start same Compressor controlled by inverter minimum time between same 180 s 0 999 compressor compressor starts line 1 Digital Scroll comp Digital Scroll comp valve control type line 1 OPTIMISED OPTIMISED CONTROL Cafe valve regulation CONTROL VARIABLE CYCLE TIME FIXED CYCLE
94. DO Oil level valve DO position compressor 6 line 1 03 01 29 Faaa4s Status display only Oil level valve DO status compressor 6 line 1 Closed Open g Logic Oil level valve DO logic compressor 6 line 1 NC NC NO Function display only Oil level function status compressor 6 line 1 Not active Active Common oil cooler Enable common oil cooling line 1 YES NO YES Oil pumps number Number of oil pumps for common oil cooler line 1 0 0 to 1 Analog output Eaab04 0 to 2 Digital outputs Enable Aout pump Enable AO of common oil cooler pump line 1 YES NO Digital outputs YES Analog output Faab0S Setpoint Common oil cooler setpoint line 1 0 0 C ve Differential Common oil cooler differential line 1 0 0 C Ze 9 9 9 9 Faab06 Pump start delay Hes before the start up of pump 2 after pump1 turns on 0 s 0 999 R ine 1 Oil pumps number Screw compressors number of oil cooler pumps enabled line1 0 _ 0 to 1 Analog output Eaab07 e 0 to 2 Digital outputs Enable Aout pump Screw compressors enable AO for oil cooler pump line 1 YES _ NO Digital outputs YES Analog output Faab08 Setpoint Screw compressors oil temperature setpoint line 1 0 0 GP Differential Screw compressors oil temperature differential line 1 0 0 CITE Threshold Common oil high temperature alarm threshold line 1 100 0 C CZE Eaab09 Differential Common oil high temperature alarm differential
95. IONAL BAND ZONE NEUTRAL ZONE Cabo Minimum Compressor setpoint lower limit line 1 9 La Maximum Compressor setpoint higher limit line 1 ol is Cab03 Setpoint Compressor setpoint line 1 el mi Cab04 Cab6 Reg type Type for proportional control line 1 PROPORT PROPORTIONAL PROP INT Integral time Integral time for proportional control line 1 300 S 0 999 Cab05 Cab7 Differential Differential for proportional control line 1 Pur 99 NZ diff Neutral zone control differential line 1 ees eis AG Activ diff Neutral zone control differential for device activation line 1 mu ke 9 3 Deact diff Neutral zone control differential for device deactivation line 1 ME 55 pRack 0300011 EN rel 1 2 04 12 2012 54 CAREL Mask index Display description Description Default UOM Values Cab09 Cab11 En force off power Enable capacity immediate decreasing to 0 line 1 NO NO YES Setp for force off Threshold for capacity decreasing to 0 line 1 sual LE eel Power load to 100 min inimum time to increase capacity request to 100 Neutral zone 15 S 0 0999 Cab12 ime control suction line 1 Power load to 100 max aximum time to increase capacity request to 100 N
96. NO external white pGD1 with connection cable RS485 4 SSR connector kit PRK100S3AK pRack PR100 XL NO external white pGD1 with connection cable RS485 4 SSR connector kit Tab 1 c Models without RS485 serial Size Code Description PRK100S3A0 pRack PR100 small built in white PGD1 2 SSR connector kit Srnall PRK100S3AK pRack PR100 small external white pGD1 with connection cable 2 SSR connector kit PRK100S3C0 PR100 small built in white PGD1 connector kit PRK100S3CK PR100 small external white pGD1 with connection cable connector kit PRK100M3A0 pRack PR100 medium built in white PGD1 2 SSR connector kit Medium PRK100M3AK pRack PR100 medium external white pGD1 with connection cable 2 SSR connector kit PRK100M3CO pRack PR100 medium built in white PGD1 connector kit PRK100M3CK pRack PR100 medium external white pGD1 with connection cable connector kit Large PRK100L3A0 pRack PR100 large built in white PGD1 4 SSR connector kit PRK100L3AK pRack PR100 large external white pGD1 with connection cable 4 SSR connector kit Extra large NO PRK100Z3A0 pRack PR100 XL NO built in white PGD1 4 SSR connector kit PRK100Z3A0 pRack PR100 XL NO external white pGD1 with connection cable 4 SSR connector kit Tab 1 d Spare parts Code Description PRK1TOOXOAO pRack PR100 compact without terminal 2 SSR connector kit PRK100X0BO pRack PR100 compact without terminal RS485 2 SSR connector kit PRK100X0CO pRack PR100 compact without terminal connecto
97. O7 _ Envelope warning refrigerant not compatible with compressor series Automatic ot featured ot featured ALW08 Envelope warning custom envelope not configured Automatic ot featured ot featured ALWO9 Envelope warning suction or condensing probes not configured Automatic ot featured ot featured ALW10 Low superheat warning Automatic ot featured ot featured ALW11 Low superheat warning line 2 Automatic ot featured ot featured ALW12 Warning ChillBooster operating without outside sensor Automatic Os ot featured ALW13 Warning ChillBooster operating without outside sensor line 2 Automatic Os ot featured Tab A b 81 pRack 0300011EN rel 1 2 04 12 2012 CAREL AS 1 0 Table Digital inputs ask Index Description Chan Logic Notes Ac05 Baack Unit ON OFF line 1 Baa56 Caaah Common low pressure switch line 1 Baada Caa14 Compressor inverter warning Baa02 Caa01 Alarm 1 compressor 1 line Baa03 Caa02 Alarm 2 compressor 1 line Baa04 Caa03 Alarm 3 compressor 1 line Baa05 Caa04 Alarm 4 compressor 1 line Baa06 Caa05 Alarm 5 compressor 1 line Baa07 Caa06 Alarm 6 compressor 1 line Baa08 Ca
98. ON time Cycle time 2 15 13 CAREL Note if high pressure prevention is enabled with activation deactivation of the devices the Digital Scroll compressor delivers the minimum possible capacity Starting procedure pRack PR100 can manage the specific starting procedure for Digital Scroll compressors as represented as in the following figure Request Valve Compressor time Startup Fig 6 5 There are three stages 1 balance the PWM valve is activated for 4 s so that the compressor delivers minimum capacity 2 compressor activation with 50 capacity for 3 minutes 3 forced operation at 100 for I minute During the starting procedure the request sent by the controller is ignored and only at the end of the procedure does the capacity delivered start reflecting the request If the request is cancelled during the starting procedure the compressor stops at the end then the minimum ON time for these types of compressors is set to 244 s The starting procedure is performed when the compressor is started while it can be disabled for a set time by parameter for subsequent starts if the compressor has not remained off for a minimum set time After this ime has elapsed the procedure is performed again during the following start Note the safety times for Digital Scroll compressors are established by the manufacturer and are as follows Minimum ON time 244 s starti
99. Pressure alarms from probe The parameters corresponding to these alarms can be set in branch C a e C b e of the main menu for the suction pressure and D a e D b e for the condensing pressure For these types of alarms reset is automatic and the activation threshold and differential can be set as well as the type of threshold which may be absolute or relative to the control set point The figure shows an example of setting the threshold to relative n fee Differential Pressure Relative threshold Setpoint Alarm Fig 8 d Note for temperature control the alarms from probe are managed based on temperature even when pressure probes are fitted The effects of the different pressure alarms from probe are described below Low suction pressure from probe The low suction pressure alarm from probe has the effect of stopping all the compressors ignoring the times High suction pressure from probe The high suction pressure alarm from probe has the effect of forcing all the compressors on ignoring the control times but observing the compressor protection times Low condensing pressure from probe The low condensing pressure alarm from probe has the effect of stopping all the fans ignoring the times High condensing pressure from probe The high condensing pressure alarm from probe has the effect of forcing all the fans on and stopping all the compressors ignoring the times 8 3 3 High pressure prevention pRack PR1
100. RACK MANAGER CAREL SLAVE LOCAL Fca01 CAREL SLAVE REMOTE MODBUS SLAVE pRACK MANAGER CAREL SLAVE GS Baudrate Supervisor communication baud rate line 1 19200 1200 to 19200 Fdot Insert password Password 0000 0 9999 Logged as display only Current password level User Service Manufacturer Fd02 Logout Logout NO NO YES User User password 0000 0 9999 Fd03 Service Service password 1234 0 9999 Manufacturer anufacturer password 1234 0 9999 The following parameters refer to line 2 for details see the corresponding parameters for line 1 above Address Enable summer winter period management line 2 196 0 to 207 Protocol Enable special days management line 2 pRACK MANAGER CAREL SLAVE LOCAL Fcb01 CAREL SLAVE REMOTE MODBUS SLAVE pRACK MANAGER CAREL SLAVE GSM Baudrate Enable holiday period management line 2 19200 1200 to 19200 65 pRack 0300011EN rel 1 2 04 12 2012 CAREL Mask index Display description Description Default UOM Values D G Safety Gba01 Prevent enable Enable condensing pressure prevent line 1 NO NO YES Setpoint Condensing pressure prevent threshold line 1 0 0 barg ie Di
101. REL AA Alarm table Code Description Reset Delay Alarm relay Action LAO1 Discharge temperature probe malfunction Automatic 60s R2 Related functions disabled LA02 Condensing pressure probe malfunction Automatic 60s RI Related functions disabled LA03 Outside temperature probe malfunction Automatic 60s R2 Related functions disabled LA04 Generic probe malfunction A PLB1 Automatic 60s R2 Related functions disabled LAOS Generic probe malfunction B PLB1 Automatic 60s R2 Related functions disabled LA06 Generic probe malfunction C PLB1 Automatic 60s R2 Related functions disabled LA07 Generic probe malfunction D PLB1 Automatic 60s R2 Related functions disabled LAOS Generic probe malfunction E PLB1 Automatic 60s R2 Related functions disabled LA09 Generic probe malfunction A PLB2 Automatic 60s R2 Related functions disabled LA Generic probe malfunction B PLB2 Automatic 60s R2 Related functions disabled LA Generic probe malfunction C PLB2 Automatic 60s R2 Related functions disabled LA Generic probe malfunction D PLB2 Automatic 60s R2 Related functions disabled Automatic 60s R2 Re LB3 Automatic 60s R2 Re Automatic 60s R2 Re Automatic 60s R2 Re LB3 Automatic 60s R2 Re Automatic 60s R2 Re ed functions disabled ed functions disabled ed functions disabled ed functions disabled ed functions disabled ed functions disabled 0 1 2 3 Generic probe malfunction E 4 Generic probe malfunction A LA15 Generic
102. Rack PR100 software assumes that the medium temperature line is line L1 while the low temperature line is line L2 DSS can be enabled and the related parameters set in main menu branch Eh Disable simultaneous starts Disabling simultaneous compressor starts may be useful for all system configurations with two separate lines and in cascade system configurations The function to avoid simultaneous starts can be enabled setting a delay time between the starts of compressors on different lines Forcing the medium temperature line Forcing the medium temperature line may be useful for cascade system configurations and involves once enabled forcing at least one compressor on medium temperature line L1 to start at minimum capacity if at least one compressor on low temperature line L2 is running This means that before the low temperature line starts the DSS function forces at least one of the compressors on medium temperature line L1 to start The low temperature line L2 thus has higher priority than the control request for medium temperature line L1 Shutdown the low temperature line The low temperature line is shutdown by the DSS function if a serious alarm is activated on the medium temperature line or in general if the medium temperature line is OFF Note in the event of pLAN network faults DSS is disabled 6 6 7 Unit of measure pRack PR100 can manage two units of measure the international system and Imperial Note t
103. Settable Settable Shutdown compressor 1 ALCO2 Alarm 2 compressor 1 anual automatic Settable Settable Shutdown compressor 1 ALCO3 Alarm 3 compressor 1 anual automatic Settable Settable Shutdown compressor 1 ALCO4 Alarm 4 compressor 1 anual automatic Settable Settable Shutdown compressor 1 ALCO5 Alarm 5 compressor 1 anual automatic Settable Settable Shutdown compressor 1 ALCO6 Alarm 6 compressor 1 anual automatic Settable Settable Shutdown compressor 1 ALCO7 Alarm 7 compressor 1 anual automatic Settable Settable Shutdown compressor 1 ALCO8 Alarm 1 compressor 2 anual automatic Settable Settable Shutdown compressor 2 ALCO9 Alarm 2 compressor 2 anual automatic Settable Settable Shutdown compressor 2 ALC10 Alarm 3 compressor 2 anual automatic Settable Settable Shutdown compressor 2 ALC11 Alarm 4 compressor 2 anual automatic Settable Settable Shutdown compressor 2 ALC12 Alarm 5 compressor 2 anual automatic Settable Settable Shutdown compressor 2 ALC13 Alarm 6 compressor 2 anual automatic Settable Settable Shutdown compressor 2 ALC14 Alarm 7 compressor 2 anual automatic Settable Settable Shutdown compressor 2 ALC15 Alarm 1 compressor 3 anual automatic Settable Settable Shutdown compressor 3 ALC16 Alarm 2 compressor 3 anual automatic Settable Settable Shutdown compressor 3 ALC17 Alarm 3 compressor 3 anual automatic Settable Settable Shutdown compressor 3 ALC18 Alarm 4 compressor 3 anual automatic Settable Settable Shutdown compressor 3 ALC19 Alarm 5
104. TB1 gt Time band 1 enabling and definition start hour and minute end hour Ta and minute suction line 1 TB4 gt Time band 4 enabling and definition start hour and minute end hour and minute suction line 1 Dad04 Changes Time band changes action CONFIRM amp SAVE LOAD PREVIOUS CLEAR ALL Copy to Copy settings to other days 0 MONDAY SUNDAY MON FRI MON SAT SAT amp SUN ALL DAYS Dados Enable floating conden Enable floating setpoint condenser line 1 NO O YES sing setpoint Offset for external tem Temperature delta for floating setpoint condenser line 1 0 0 9 9 9 9 Dad06 perature ma _ Controlled by Enable floating condensing from digital input NO O YES Digital input Dad07 Change set by digital Se setpoint compensation by digital input suction condensing NO O YES input ine 1 Cond pressure tempera Type of high condensing pressure temperature alarm threshold line 1 JABSOLUTE ABSOLUTE RELATIVE Dae01 ure high alarm Threshold High condensing pressure temperature alarm threshold line 1 24 0 barg MES Cond pressure tempera High condensing pressure temperature alarm differential line 1 1 0 barg A Dae02 ure alarm diff Alarm delay High condensing pressure temperature alarm delay line 1 60 S 0 999 Cond pressure tempera Type of low condensing pressure temperature alarm threshold ABSOLUTE ABSOLUTE RELATIVE Dae03 ure low alarm line 1 Threshold Low condensing
105. YES Ehb05 L1 activation a minimum threshold Threshold Minimum threshold for line 1 activation by DSS ds PE OF The following parameters refer to line 2 for details see the corresponding parameters for line 1 above Oil temperature probe position line 2 B1 B1 B10 Oil temperature probe type line 2 4 20mA KE NTC PT1000 0 1V 0 10V Eaba04 4 20MA 0 5V HINTC display only Oil temperature probe value line 2 ES Upper value Oil temperature probe max limit line 2 30 0 barg ssa E Lower value Oil temperature probe min limit line 2 0 0 barg ne vas CP Calibration Oil temperature probe adjustment line 2 0 0 barg soa 0 Oil pumps number Number of oil pumps for common oil cooler line 2 0 0 to 1 digital input Eabb04 0 to 2 Digital outputs Enable Aout pump Enable AO of common oil cooler pump line 2 YES NO Digital outputs YES digital input DO Subcooling valve DO position line 2 Sa 01 29 Status display only Status of subcooling valve DO line 2 Closed Open Ebba01 Logic Logic of subcooling valve line 2 NO NC NO Function display only Subcooling valve function status line 2 Not active Active Subcooling control Enable subcooling function line2 NO NO YES Subcooling control type line 2 COND amp COND
106. a07 Alarm 7 compressor 1 line Baa09 Caa15 Alarm 1 compressor 2 line Baa10 Caa16 Alarm 2 compressor 2 line Baal Caa17 Alarm 3 compressor 2 line Baal2 Caa18 Alarm 4 compressor 2 line Baal Caa19 Alarm 5 compressor 2 line Baa14 Caa20 Alarm 6 compressor 2 line Baa15 Caa2 Alarm 7 compressor 2 line Baal7 Caa28 Alarm 1 compressor 3 line Baa18 Caa29 Alarm 2 compressor 3 line Baa19 Caa30 Alarm 3 compressor 3 line Baa20 Caa3 Alarm 4 compressor 3 line Baa21 Caa32 Alarm 5 compressor 3 line Baa22 Caa33 Alarm 6 compressor 3 line Baa23 Caa34 Alarm 7 compressor 3 line Baa24 Caa40 Alarm 1 compressor 4 line Baa25 Caa4 Alarm 2 compressor 4 line c Baa26 Caa42 Alarm 3 compressor 4 line amp Baa27 Caa43 Alarm 4 compressor 4 line Y Baa28 Caa44 Alarm 5 compressor 4 line Baa29 Caa45 Alarm 6 compressor 4 line Baa30 Caa46 Alarm 7 compressor 4 line Baa32 Caa53 Alarm 1 compressor 5 line Baa33 Caa54 Alarm 2 compressor 5 line Baa34 Caa55 Alarm 3 compressor 5 line Baa35 Caa56 Alarm 4 compressor 5 line Baa36 Caa57 Alarm 5 compressor 5 line Baa37 Caa58 Alarm 6 compressor 5 line Baa38 Caa59 Alarm 7 compressor 5 line Baa39 Caa65 Alarm 1 compressor 6 line Baa40 Caa66 Alarm 2 compressor 6 line 5 Baa41 Caa67 Alarm 3 compressor 6 line lt Baa42 Caa68 Alarm 4 compressor 6 line Baa43 Caa69 Alarm 5 compressor 6 line Baa44 Caa70 Alarm 6 compressor 6 line Baa45 Caa71 Alarm 7 compressor 6 line Baa47 Caa78 Alarm 1 compressor 7 line Baa48
107. able RI Shutdown compressor LB03 Low condensing pressure from probe Automatic Settable RI Force fans to 0 LBO4 High condensing pressure from probe Automatic Settable RI Force fans to 100 and compres sor stop ALBO5 Liquid level Automatic Settable R2 ALB06 Common oil differential Automatic Settable R2 ALBO7 Common fan circuit breaker Automatic Settable Settable ALBOS Low suction pressure from pressure switch line 2 Semiautomatic Settable RI Shutdown compressors line 2 ALBO9 High condensing pressure from pressure switch line 2 Manual automatic Settable RI Shutdown compressors line 2 ALB10 Low condensing pressure from probe line 2 Automatic Settable RI Force fans to 0 line 2 ALB11 High condensing pressure from probe line 2 Automatic Settable RI Force fans to 100 and stop compressor line 2 ALB12 Liquid level line 2 Automatic Settable R2 ALB13 Common oil differential line 2 Automatic Settable R2 ALB14 Common fan circuit breaker line 2 Automatic Settable Settable ALB15 High suction pressure from probe Automatic Settable RI ALB16 Low suction pressure from probe Automatic Settable RI ALB17 High suction pressure from probe line 2 Automatic Settable RI ALB18 Low suction pressure from probe line 2 Automatic Settable RI ALB21 Shutdown to prevent high pressure anua Settable RI Shutdown compressor ALB22 Shutdown to prevent high pressure line 2 anua Settable RI Shutdown compressors line 2 ALCO1 Alarm 1 compressor 1 anual automatic
108. able Shutdown compressor 9 ALC48 Alarm 2 compressor 9 anual automatic Settable Settable Shutdown compressor 9 ALC49 Alarm 1 compressor 10 anual automatic Settable Settable Shutdown compressor 10 ALC50 Alarm 1 compressor 11 anual automatic Settable Settable Shutdown compressor 11 ALC51 Alarm 1 compressor 12 anual automatic Settable Settable Shutdown compressor 12 ALC52 Alarm 1 compressor 1 line 2 anual automatic Settable Settable Shutdown compressor 1 line 2 ALC53 Alarm 2 compressor 1 line 2 anual automatic Settable Settable Shutdown compressor 1 line 2 ALC54 Alarm 3 compressor 1 line 2 anual automatic Settable Settable Shutdown compressor 1 line 2 ALC55 Alarm 4 compressor 1 line 2 anual automatic Settable Settable Shutdown compressor 1 line 2 ALC56 Alarm 5 compressor 1 line 2 anual automatic Settable Settable Shutdown compressor 1 line 2 ALC57 Alarm 6 compressor 1 line 2 anual automatic Settable Settable Shutdown compressor 1 line 2 ALC58 Alarm 7 compressor 1 line 2 anual automatic Settable Settable Shutdown compressor 1 line 2 ALC59 Alarm 1 compressor 2 line 2 anual automatic Settable Settable Shutdown compressor 2 line 2 ALC60 Alarm 2 compressor 2 line 2 anual automatic Settable Settable Shutdown compressor 2 line 2 ALC61 Alarm 3 compressor 2 line 2 anual automatic Settable Settable Shutdown compressor 2 line 2 ALC62 Alarm 4 compressor 2 line 2 anual automatic Settable Settable Shutdown compressor 2 line 2 ALC63 Alarm 5
109. ac29 Caa6 Valve 1 compressor 5 line Bac30 Caa62 Valve 2 compressor 5 line Bac31 Caa63 Valve 3 compressor 5 line Bac33 Caa64 Balancing valve compressor 5 line 1 Bac34 Caa72 Line relay compressor 6 line 1 Partwinding Star relay compressor 6 line 1 Delta relay compressor 6 line 1 Line 1 Suction Bac35 Caa73 Valve 1 compressor 6 line 1 Bac36 Caa74 Valve 2 compressor 6 line 1 Bac37 Caa75 Valve 3 compressor 6 line 1 Bac39 Caa76 Balancing valve compressor 6 line 1 Bac41 Caa80 Line relay compressor 7 line 1 Partwinding Star relay compressor 7 line 1 Delta relay compressor 7 line 1 Bac42 Caa81 Valve 1 compressor 7 line Bac43 Caa82 Valve 2 compressor 7 line Bac45 Caa83 Bac46 Caa86 Balancing valve compressor 7 line 1 Line relay compressor 8 line 1 Partwinding Star relay compressor 8 line 1 Delta relay compressor 8 line 1 Bac47 Caa87 Valve 1 compressor 8 line Bac48 Caa88 Valve 2 compressor 8 line Bac50 Caa89 Balancing valve compressor 8 line 1 Bac51 Caa92 Line relay compressor 9 line 1 Partwinding Star relay compressor 9 line 1 Delta relay compressor 9 line Bac52 Caa93 Valve 1 compressor 9 line Bac55 Caa94 Bac56 Caa96 Balancing valve compressor 9 line 1 Line relay compressor 10 line Partwinding Star relay compr
110. ack PR100 board and then subsequently uploaded To use the pRack Manager program a serial converter output RS485 with CVSTDUTLFO telephone connector or CVSTDUMORO 3 pin terminal must be connected to the board The connection to pRack Manager can be made 1 Via the RS485 serial port used for the pLAN connection 2 Viathe BMS serial port with RS485 serial card and activating the pRack Manager protocol by parameter on screen Fca01 or connecting pRack Manager and selecting SearchDevice Auto BMS or FB on the Connection settings tab In this case the connection is established after around 15 20 seconds Important the BMS serial port should only be used for monitoring the variables while to update the software use the RS485 serial port dedicated to the pLAN connection The following figure shows an example of connection to the PC via the RS485 serial port used for the PLAN connection Power supply Fig 9 b Note for further details see the pRack Manager program online help CAREL 10 UPDATING THE SOFTWARE The pRack PR100 boards are supplied with the software already loaded If an update is required the following can be used pRack Manager SmartKey programming key Note The pRack PR100 software is protected by digital signature and cannot be loaded onto hardware other than pRack PR100 e g pCO3 otherwise after
111. al 43 pRack 0300011EN rel 1 2 04 12 2012 Digital output TOF Threshold Tliq Fig 6 af The subcooling function can be enabled and the related parameters set in main menu branch E b a E b b Note the subcooling function is active when at least one compressor is on 6 6 3 Heat recovery pRack PR100 can manage heat recovery for types of system with heat recovery in series with the main condenser Heat recovery can be activated by Probe Time bands e Supervisor The heat recovery function can be enabled and the related parameters set in main menu branch E e a E e b A digital input is managed that acts as a trigger for activating the function When the digital input is not active heat recovery is not operating while when the digital input is active heat recovery is operating when at least one of the other conditions is true as shown in the figure Digital Input wr EET Scheduler J LL re al ER II Fig 6 ag If the digital input is not configured only the other conditions are taken into consideration When the heat recovery function is active a digital output is activated to trigger the pump and a digital or analogue output for an On Off or modulating 3 way valve For activation by probe the operation of the On Off or modulating 3 way valve and the pump is shown in the figure where the temperature considered is the heat recovery exchanger outlet temperature Heat reclaim by pro
112. al suction line 1 0 3 barg EY ri b43 Configure another Second suction line configuration O m O YES suction line b45 Dedicated pRack board Suction lines on different boards O O YES for suction line Compressors type Type of compressors line 2 RECIPROCATING RECIPROCATING SCROLL b50 Compressors number Number of compressors line 2 3 Viel b51 umber of alarms for Number of alarms for each compressor line 2 1 0to 4 each compressor Modulate speed device Modulating speed device for first compressor line 2 ONE ONE b52 NVERTER DIGITAL SCROLL Compressors sizes Compressors sizes line 1 SAME SAME CAPAC amp SAME STAGE CAPACITY CONF b70 SAME CAPAC amp DIFF STAGE CONF DEFINE SIZES SI Enable size and size for compressor group 1 line 1 YES NO YES KW 0 0 500 0 Ib74 nial SE G Sieg S4 Enable size and size for compressor group 4 line 1 NO NO YES E KW 0 0 500 0 67 pRack 0300011EN rel 1 2 04 12 2012 CAREL Mask index Display description Description Default UOM Values EN Enable stages and stages for compressor group 1 line 1 YES s NO YES 100 100 50 100 50 75 100 b75 25 50 75 100 33 66 100 S4 Enable stages and stages for compressor group 4 line 1 NO se NO YES KW S1
113. al mode DIS DIS E Bb01 Discharge L1 Condenser line 1 in manual mode DIS es DIS E Discharge L2 Condenser line 2 in manual mode DIS DIS E Timeout anual mode duration after last key pressed 10 min__ 0 500 Bb202 Compressor 1 anual stages request for compressor 1 line 1 OFF OFF 01 3 STAGES Force to 2 STAGES 4 STAGES Bbal6 Compressor 12 anual stage reguest for compressor 12 line 1 OFF OFF Ol 3 STAGES Force to 2 STAGES 4 STAGES Oil cool pump1 anual operating status for oil cooling pump 1 line 1 OFF zm OFF O Bbal7 Force to i Oil cool pump2 anual operating status for oil cooling pump 2 line 1 OFF OFF 01 Force to Bbal8 Oil cool fan anual operating status for oil cooling fan line 1 OFF OFF 01 Force to Bba20 Compressor 1 anual stage request for compressor 1 line 2 OFF OFF 01 3 STAGES Force to 2 STAGES 4 STAGES Bba34 Compressor 12 anual stage request for compressor 12 line 2 OFF OFF 01 3 STAGES Force to 2 STAGES 4 STAGES Oil cool pump1 anual operating status for oil cooling pump 1 line 2 OFF OFF OI Bba35 Force to a Oil cool pump2 anual operating status for oil cooling pump 2 line 2 OFF zm OFF O Force to Bb337 Oil cool fan anual operating status for oil cooling fan line 2 OFF OFF 01 Force to Bba38 Fan anual operating status for fan 1 line 1 OFF OFF 01 orce Bba53 Fan 6 anual operating status for fan 16 line 1 OFF OFF O orce
114. alancing valve compressor 5 line 2 85 pRack 0300011EN rel 1 2 04 12 2012 CAREL Mask Index Description Chan Logic Notes Bacag Cba72 Line relay compressor 6 line 2 Partwinding Star relay compressor 6 line 2 Delta relay compressor 6 line 2 Bacah Cba73 Valve 1 compressor 6 line 2 Bacai Cba74 Valve 2 compressor 6 line 2 Bacaj Cba75 Valve 3 compressor 6 line 2 Bacal Cba76 Balancing valve compressor 6 line 2 Bacan Cba80 Line relay compressor 7 line 2 Partwinding Star relay compressor 7 line 2 Delta relay compressor 7 line 2 Bacao Cba81 Valve 1 compressor 7 line 2 Bacap Cba82 Valve 2 compressor 7 line 2 Bacar Cba83 Balancing valve compressor 7 line 2 Bacas Cba86 Line relay compressor 8 line 2 Partwinding Star relay compressor 8 line 2 Delta relay compressor 8 line 2 Bacat Cba87 Valve 1 compressor 8 line 2 Bacau Cba88 Valve 2 compressor 8 line 2 5 Bacaw Cba89 Balancing valve compressor 8 line 2 g 3 Bacax Cba92 Line relay compressor 9 line 2 SVG Partwinding Star relay compressor 9 line 2 Delta relay compressor 9 line 2 Bacay Cba93 Valve 1 compressor 9 line 2 Bacbb Cba94 Balancing va
115. amp LIQUID TEMP EbbbO1 LIQUID TEMP LIQUID TEMP ONLY Threshold Threshold for subcooling control line 2 0 0 C e 9999 9 9999 9 Subcool value display Value of subcooling line 2 0 0 C p 999 9 999 9 only Economizer Enable economizer function line 2 NO NO YES Ecbb04 Compr Power Thr Capacity percent threshold for economizer activation line 2 0 0 100 Press Lim Condensing temperature threshold for economizer activation line 2 0 0 C ies 999 9 999 9 Disch T Thr Discharge temperature threshold for economizer activation line 2 0 0 C La 999 9 999 9 Compressor 1 discharge temperature probe position line 2 BI B1 B10 Compressor 1 discharge temperature probe type line 2 4 20mA Edba01 NTC PT1000 0 1V 0 10V 4 20MA 0 5V HINTC display only Compressor 1 discharge temperature probe value line 2 Me Upper value Compressor 1 discharge temperature probe max limit line 2 30 0 barg Me Edba01 Lower value Compressor 1 discharge temperature probe min limit line 2 0 0 barg Ss EE Calibration Compressor 1 discharge temperature probe adjustment line 2 0 0 barg md pRack 0300011EN rel 1 2 04 12 2012 64 CAREL
116. anel For the control Signals it is recommended to use shielded the pRack PR100 AC power supply 24 Vac 10 15 50 60 Hz cables with twisted wires Compact Maximum current P 11W P 14VA Imax 700mA If the control cables have to cross over the power cables the intersections Tab 3 a must be as near as possible to 90 degrees always avoiding running the control cables parallel to the power cables A Important e Use cable ends suitable for the corresponding terminals Loosen each screw and insert the cable ends then tighten the screws When power supplies other than those specified seriously damage the he operation is completed slightly tug the cables to check they are system sufficiently tight a Class Il safety transformer must be used in the installation to supply separate as much as possible the sensor Signal digital input and serial just one pRack PR100 controller rating 30 VA for pRack Compact and ine cables from the cables carrying inductive loads and power cables 50 VA for pRack S M L XL o avoid possible electromagnetic disturbance Never insert power i the power supply to the pRack PR100 controller and terminal or pRack PR100 controllers and terminals should be separated from the power supply to the other electrical devices contactors and other electromechanical components inside the electrical panel if the power transformer secondary is earthed check that the earth cables including the electrical cables and probe Sig
117. ation of the cooler varies according to the setting of the output which may be e Analogue one pump only e Digital 1 or 2 pumps The control probe is the compressor oil temperature probe and the following need to be set set point differential and for 2 pumps only an activation delay for the second pump The operation of the cooler when using an analogue output is shown in the figure Oil cooler 0 10 V Fan Differential Differential Ne Oil temperature Setpoint Fig 6 ac If a digital output and just one pump is used the fan and the pump are activated deactivated at the same time Oil cooler 0 10V Fan Pump Cer Oil temperature Differential Differential Setpoint Fig 6 ad f a digital output and two pumps are used the operation of the fan and he first pump is Similar to the previous case while the second pump is activated when the oil temperature is greater than the set point differential for a time at least equal to the delay and is deactivated when he oil temperature falls back below the set point minus the differential The oil level can be managed for the first 6 compressors on each suction ine If a compressor alarm is configured as an oil alarm this alarm can be associated with oil level management enabling the function and setting the compressor alarm number to be used when the digital input associated with the alarm is activated this thus Signals the
118. ature value compressor 1 line 1 0 0 barg es Calibration Discharge temperature probe calibration compressor 1 line 1 0 0 barg hus 61 pRack 0300011EN rel 1 2 04 12 2012 CAREL Mask index Display description Description Default UOM Values DO Economizer valve DO position compressor 6 line 1 01 29 Ecaa12 Status display only Economizer valve DO status compressor 6 line 1 Closed Open gt Logic Economizer valve DO logic compressor 6 line 1 NO NC NO Function display only Economizer valve function status compressor 6 line 1 Not active Active Economizer Enable economizer function line 1 NO NO YES Ecab04 Compr Power Thr Capacity percentage threshold for economizer activation line 1 0 0 100 5 Press Lim Condensing temperature threshold for economizer activation line 1 0 0 C 999 9 999 9 Disch T Thr Discharge temperature threshold for economizer activation line 1 0 0 C 999 9 999 9 Economizer Enable economizer function for screw compressor 1 line 1 NO NO YES Setpoint Setpoint for economizer function with discharge temperature for screw 5 0 Ecab05 compressor 1 Differential Differential for economiz
119. atures an internal clock with backup battery that keeps the time and date for all related functions see Chapter 2 for details relating to the hardware The date on pRack PR100 can be set as follows day month year dd mm yy month day year mm dd yy year month day yy mm dd The current date and time can be set the day of the week corresponding to set date displayed plus changeover to daylight saving can be enabled by setting the changeover date and the deviation The related parameters can be set during start up or in main menu branch Fa Note the date and time are managed on pRack boards with addresses 1 and 2 on power up and whenever the pLAN network is reconnected the software on pRack synchronises the settings on board 2 sending the date and time set on board 1 If the clock card is not operating an alarm is generated and the functions relating to the time bands described in the following paragraph are not available 6 7 2 Time bands pRack PR100 allows the operating seasons the closing periods and weekends to only be set once and consequently these are common to all the system functions As well as these settings each function can be associated with a weekly scheduler setting up to 4 different daily activation bands for each day of the week For each time band the start and end time can be set and settings made can be copied to the others days of the week The priority of the schedulers
120. ave already been configured on the inverter the higher time set has priority Example 1 range of modulating device capacity variation higher than the capacity of the compressors two compressors without capacity control with the same capacity 20 kW each modulating device with variable capacity between 30 and 60 kW The figure shows the trend when the request sent by the controller increases and then decreases continuously between 0 and 100 It can be seen that the capacity delivered exactly follows the required capacity except when below the minimum capacity of the modulating device Actual capacity kW 100 80 60 40 20 Regulation request uunnnnn Step compressors capacity am Inverter capacity em Total capacity Fig 6 k CAREL m Example 2 range of modulating device capacity variation lower H f Compressor request than the capacity of the compressors two compressors without capacity control with the same capacity 30 kW each modulating device with variable capacity between 20 and 40 kW Line 1 It can be seen that the capacity delivered does not exactly follow the required capacity rather acts in steps so as to avoid swings Part winding t Actual capacity kW Delta 100 Star line delay a tart delta delay 80 60 Fig 6 0 40 6 3 5 Safety times pRack PR100 can manage common safety times for each compressor e Minim
121. be Pump and ON OFF valve Cep Modulating valve Differential Differential Outlet temperature Sg gt Setpoint Fig 6 ah pRack 0300011EN rel 1 2 04 12 2012 CAREL If the probe is not working pRack PR100 considers the other conditions without Signalling further alarms in addition to the probe alarm As regards activation from time bands heat recovery does not consider the operating seasons and links can be set to special days and closing periods so that heat recovery is only active based on the daily bands set Note a settable bottom limit is available for the condensing pressure below which heat recovery is deactivated condensing pressure set point compensation can be disabled when heat recovery is active Heat recovery as the first stage in high pressure prevention Heat recovery can be used to prevent high condensing pressure The parameters relating to this function can be set in branch G b a G b b of the main menu after having enabled the heat recovery function For details on operation of the prevent function see paragraph 8 3 3 Heat recovery operation as the first stage in high pressure prevention is shown in the figure Heat reclaim Prevent Cond Press Prevent threshold Heat reclaim activation Fig 6 ai The function must be enabled and an offset must be set in relation to prevent threshold while the differential is the same set for the prevent function
122. bled from main menu branch D a b D b b The operating principle of the cut off function is shown in the figure Regulation request Max output value Cut Off value of request Cut Off setpoint Regulation setpoint Regulation probe value Differential Differential Fig 6 x A percentage of the control request and a cut off set point can be set When the control request reaches the set cut off value this value is kept constant until the control value falls below the cut off set point after which it falls to 0 and remains there until the request exceeds the cut off value again 6 4 2 Rotation pRack PR100 can manage rotation of the fans much in the same way as described for the compressors therefore e LIFO FIFO time Custom rotation Management of a modulation device on each line The substantial difference compared to the compressors concerns the possibility to manage different capacities and load stages which are obviously not featured for the fans In addition pRack PR100 can specially manage inverter driven fans In fact a multiple number of inverter driven fans can be set f there is more than one fan however the number of inverter driven fans is set to 1 the fans are started and stopped at the same time and the fans will always all be at the same power f there is more than one inverter driven fan as well as being able to use an alarm digital input for each it is assumed that the weight
123. cating and regulating equipment CE directives LVD EMC 13 pRack 0300011EN rel 1 2 04 12 2012 CAREL 2 2 Description of the pRack PR100 S M L XL boards pRack PR100 S Bo ST Fig 2 e pRack PR100 XL 9 10 3 O I I I I I aa FEES AE SIE Ad bool aco A IE od DY Do DY DEd od 12 d olat kolo 11 A ata oo od EE BOSE ALADEY pRack 0300011EN rel 1 2 04 12 2012 14 Key 1 power supply connector G GO 2 yellow power LED and 3 status LEDs 3 additional power supply for the terminal and 0 to 5 V ratiometric probes 4 universal NTC 0 1 V 0 5 V ratiometric 0 10 V 0 20 mA 4 20 mA analogue inputs passive NTC PT1000 ON OFF analogue inputs 0 10 V analogue outputs 24 Vac Vdc digital inputs 230 Vac or 24 Vac Vdc digital inputs display terminal connector not used OJIN DI Lei connector for pGD1 terminal and for downloading the application program 11 relay digital outputs SPST 24 Vac Vdc SSR or SPDT depending on the model 12_ I O expansion board connector not used 13 pLAN network connector 14 cover for inserting the supervisor and telemaintenance option or BMS serial connector available on models PRK100 B and PRK100 D 15 cover for inserting the field ca
124. ced even if requested by the supervisor Two of the free digital inputs on pRack pR100 can be configured for connection to two pLoads outputs with each input being assigned one of the following actions No action Activation of the digital input has no influence on control e Capacity limited to the current value Activation of the digital input limits the maximum control request capacity can be reduced from this value by the controller but cannot exceed the current value at the moment the digital input was activated for the entire time it remains active as shown in the figure Regulation request limit de en e A e GEEET I I I I I I Digital input time Fig 6 am e Capacity limited to a value settable by parameter As in the previous case the control request is limited at the top end however to a fixed value set by parameter Decrease capacity by a value settable by parameter Activation of the digital input reduces the control request by a fixed value set by parameter as shown in the figure Regulation request offset Min digital input time Fig 6 an By suitably setting this parameter based on system configuration one compressor can be shut down for example if there are three compressors by setting the decrease to 33 activation of the input stops one of the three compressors Compressor shutdown and restart respect the safety times CAREL The digital inputs configured
125. codes of the models with RS485 serial with or without SSR without RS485 serial with or without SSR the spare parts and accessories Models with RS485 serial Size Code Description PRK100X3BO pRack PR100 compact built in white PGD1 RS485 2 SSR connector kit ee PRK100X3BK pRack PR100 compact external white pGD1 with connection cable RS485 2 SSR connector kit PRK100X3DO pRack PR100 compact built in white PGD1 RS485 connector kit PRK100X3DK pRack PR100 compact external white pGD1 with connection cable RS485 connector kit PRK100S3BO pRack PR100 small built in white PGD1 RS485 2 SSR connector kit Small PRK100S3BK pRack PR100 small external white pGD1 with connection cable RS485 2 SSR connector kit PRK100S3D0 pRack PR100 small built in white PGD1 RS485 connector kit PRK100S3DK pRack PR100 small external white pGD1 with connection cable RS485 connector kit Medir PRK100M3B0 pRack PR100 medium built in white PGD1 RS485 2 SSR connector kit PRK100M3BK pRack PR100 medium external white pGD1 with connection cable RS485 2 SSR connector kit PRK100L3BO pRack PR100 large built in white PGD1 RS485 4 SSR connector kit Large PRK100L3BK pRack PR100 large external white pGD1 with connection cable RS485 4 SSR connector kit PRK100L3DK pRack PR100 large external white pGD1 with connection cable RS485 connector kit PRK100Z3B0 pRack PR100 XL NO built in white PGD1 RS485 4 SSR connector kit Extra large NO PRK100Z3BK pRack PR100 XL
126. compressor 2 line 2 anual automatic Settable Settable Shutdown compressor 2 line 2 ALC64 Alarm 6 compressor 2 line 2 anual automatic Settable Settable Shutdown compressor 2 line 2 ALC65 Alarm 7 compressor 2 line 2 anual automatic Settable Settable Shutdown compressor 2 line 2 ALC66 Alarm 1 compressor 3 line 2 anual automatic Settable Settable Shutdown compressor 3 line 2 ALC67 Alarm 2 compressor 3 line 2 anual automatic Settable Settable Shutdown compressor 3 line 2 ALC68 Alarm 3 compressor 3 line 2 anual automatic Settable Settable Shutdown compressor 3 line 2 ALC69 Alarm 4 compressor 3 line 2 anual automatic Settable Settable Shutdown compressor 3 line 2 ALC70 Alarm 5 compressor 3 line 2 anual automatic Settable Settable Shutdown compressor 3 line 2 ALC71 Alarm 6 compressor 3 line 2 anual automatic Settable Settable Shutdown compressor 3 line 2 ALC72 Alarm 7 compressor 3 line 2 anual automatic Settable Settable Shutdown compressor 3 line 2 ALC73 Alarm 1 compressor 4 line 2 anual automatic Settable Settable Shutdown compressor 4 line 2 ALC74 Alarm 2 compressor 4 line 2 anual automatic Settable Settable Shutdown compressor 4 line 2 ALC75 Alarm 3 compressor 4 line 2 anual automatic Settable Settable Shutdown compressor 4 line 2 ALC76 Alarm 4 compressor 4 line 2 anual automatic Settable Settable Shutdown compressor 4 line 2 ALC77 Alarm 5 compressor 4 line 2 anual automatic Settable Settable Shutdown compressor 4 line 2
127. creen Screen for displaying setting the parameters Main screen The main screen is the screen that the software on board pRack PR100 automatically returns to 5 minutes after the last button was pressed An example of the main screen is shown in the figure highlighting the fields and icons used 4 oberg B6ebaro Suc bier Lorenz ir Fig 5 a Time and date Main values Unit status unit off or compressor and fan status unit on Active alarm Signal and manual operation Access further information screens menu branch Aa by pressing button G A WIN Note The information shown on the main screen varies according to the system configuration one line two lines two lines with shared condenser and the type of control value used pressure or temperature For two line systems a parameter is used to select which line is shown first pRack 0300011EN rel 1 2 04 12 2012 30 CAREL 5 USER INTERFACE Note The other information shown in menu branch A a varies according to the system configuration For two line systems pressing from the main screen accesses a different screen based on the starting point line 1 line 2 Menu screen An example of a menu screen is shown in the figure below D Condensers The top right corner shows the selected item and the current password level for details see the following paragraph The and Y buttons are used to select the
128. cted Note The compressor with modulation device is also assumed to be the first The trend in capacity delivered by the modulation device depends on the capacity of the compressor with the modulating device compared to the other compressors available Three cases can be identified compressors all with the same capacity and range of capacity variation of the modulating device greater than or equal to the capacity of the compressors compressors all with the same capacity and range of capacity variation of the modulating device less than the capacity of the compressors compressors with different capacities In the first case the modulating device manages to continuously cover the range of variation of the control request while in the second case some discontinuous variations remain The behaviour in the third case varies according to the capacities involved and in any case reflects one of the two previous cases To configure the compressor capacity when an inverter is used the minimum and maximum operating frequencies need to be set relating to the minimum and maximum value of the analogue output and the rated capacity delivered at rated frequency 50 Hz so that the pRack PR100 software can calculate the capacity the compressor can deliver with the inverter and use this value for control In addition for inverters the variation in capacity delivered can be limited by setting the increase and decrease times If these times h
129. ctions can be activated in main menu branch d Important after having reset the default values the pRack PR100 board need to be switched off and on again 6 8 1 Saving and resetting the user default values pRack PR100 can save the exact configuration set by the user inside the instrument allowing it to be recalled at any time All the set values are saved therefore loading user defaults restores the exact same conditions that the pRack PR100 controller was in when the data were saved Note only one user default configuration can be saved therefore when the data is next saved this overwrites the previous data Ab Important the Carel default reset procedure totally deletes the pRack PR100 permanent memory and consequently is an irreversible operation the user values cannot be reset after updating the software on the pRack PR100 nonetheless see Chapter 10 for details on how to save the parameters for versions different of the software 6 8 2 Resetting the Carel default values The Carel default values are shown in the Parameters table in Chapter 7 The values pre set by Carel can be installed at any time restoring the pRack PR100 default settings and requiring the startup procedure described in Chapter 4 to be repeated Important the Carel default reset procedure totally deletes the pRack PR100 permanent memory and consequently is an irreversible operation nonetheless the user settings can still be rest
130. d condensing pressure Note A maximum of 50 alarms can be logged after this limit any new events overwrite the oldest ones which are therefore deleted 8 2 Compressor alarms The number of alarms for each compressor can be set during the configuration phase using the Wizard or subsequently from branch C a e C b e of the main menu The number of alarms is the same for all the compressors on the same line PALATE ESE FOR GSP Mf SEN TS OMF Car Fig 8 a Note The maximum number of alarms that can be configured for each compressor depends not only on the type of compressor but also on the size of pRack and the number of compressors fitted After having selected the number of alarms maximum 4 for the reciprocating or scroll compressors and 7 for screw compressors the settings can be configured for each alarm choosing a description from the options shown in the table the output relay the type of reset delay and priority The effect of the alarm on the devices is set and involves stopping the compressor except for the oil warning Possible descriptions for compressor alarms Reciprocating or scroll Screw Generic Generic Overload Overload High pressure High pressure Low pressure Low pressure Oil Oil Screw rotation Oil warning Filter Blocked Tab 8 a An example of a screen for selecting in the figure he description of the alarm is shown TAA Lda Hi BP LO quit Fressur
131. d in the manual possible electromagnetic disturbance Do not attempt to open the device in any way other than described in the Never run power cables including the electrical panel wiring and signal cables in the same conduits manual Do not drop hit or shake the device as the internal circuits and mechanisms may be irreparably damaged Do not use corrosive chemicals solvents or aggressive detergents to clean NO POWER he device l l Ee Do not use the product for applications other than those specified in the U TOGETHER echnical manual READ CAREFULLY IN THE TEXT All of the above suggestions likewise apply to the controllers serial boards programming keys or any other accessory in the CAREL product portfolio CAREL adopts a policy of continual development Consequently CAREL reserves he right to make changes and improvements to any product described in this document without prior warning The technical specifications shown in the manual may be changed without prior warning The liability of CAREL in relation to its products is specified in the CAREL general contract conditions available on the website www CAREL com and or by specific agreements with customers specifically to the extent where allowed by applicable Key icone legislation in no case will CAREL its employees or subsidiaries be liable for any NOTE to bring attention to a very important subject in lost earnings or sales losses of data and info
132. dba09 Liquid injection valve compressor 3 line 2 5 Bacee Ecba10 Edba10 Liquid injection valve compressor 4 line 2 9 Bacef Ecba11 Edba11 Liquid injection valve compressor 5 line 2 2 Baceg Ecba12 Edba12 Liquid injection valve compressor 6 line 2 Bac72 Anti liquid return line 2 Bacej Force from BMS line 2 Bacel Ebbb01 Subcooling line 2 Faba40 Oil level valve compressor 1 line 2 Eaba41 Oil level valve compressor 2 line 2 Faba42 Oil level valve compressor 3 line 2 Faba43 Oil level valve compressor 4 line 2 Faba44 Oil level valve compressor 5 line 2 Eaba45 Oil level valve compressor 6 line 2 Bacdg Efe21 Generic stage function 1 Bacdh Efe22 Generic stage function 2 Bacdi Efe23 Generic stage function 3 5 Bacdj Efe24 Generic stage function 4 E Bacdk Efe25 Generic stage function 5 e Bacdl Active alarms Bacdm Efe26 Generic alarm function 1 Bacdn Efe27 Generic alarm function 2 Bacdo Efe28 Generic scheduling function Baceh Sign of life Bacem Minor alarm Bacen Serious alarm pRack 0300011EN rel 1 2 04 12 2012 86 Tab A d CAREL Analogue inputs Mask Index Description Chan Logic Notes Bab01 Caaal Return pressure probe line
133. ds scroll or piston compressors 2 condenser lines line 1 on separate board line 2 on common board with suction Board with dee e dress 1 VO Board with PLAN address 3 h 2 suction lines on separate boards scroll or piston compressors 2 VO condenser lines one for each suction line board Board with Board with dd VO I O address 1 address 2 Board with Board with PLAN PLAN ad address 1 dress 2 Fig A h pRack 0300011EN rel 1 2 04 12 2012 76 CAREL A 2 System configurations with more than one pLAN board If the system configuration involves the connection of more than one board in a PLAN the addresses must be set correct before select a solution of configuration For the addresses to be assigned to the pRack PR100 boards see Appendix Al pRack PR100 can use two user terminals as well as a built in terminal with addresses 31 and 32 The default user terminal address is 32 so only if a second terminal is required must the address of this be set to 31 as described below The address of the terminal is also required when having to set the address of the pRack PR100 boards when multip boards are connected to the pLAN
134. dware sizes listed in the table for the detailed description of each size the electrical specifications and installation see Chapter 2 Hardware Sizes Size Analogue inputs available Digital inputs available Analogue outputs available Digital outputs available Compact 2 6 2 1 PWM 1 0 10 Vdo 5 2 SSR depending on model Small 342 8 4 0 10 Vdc 6 2 SSR depending on model Medium 6 2 12 24V 2 230V 4 0 10 Vdc 11 2 SSR depending on model Large 6 4 14 24V 4 230V 6 0 10 Vdc 14 4 SSR depending on model Extra large NO 6 2 12 24V 2 230 V 4 0 10 Vdc 25 4 SSR depending on model Tab 1 b can also be used as digital inputs The following versions are available for each size e with built In or external PGD1 terminal white background without terminal e with RS485 serial interface incorporated without serial interface e with or without SSR digital outputs All models of pRack PR100 come with e optically isolated pLAN e black plastic cover maximum number of SSR relays available for models with SSR connector kit 7 pRack 0300011EN rel 1 2 04 12 2012 CAREL Below are the
135. e 1 RECIPROCATING RECIPROCATING SCROLL c05 SCREW Compressors number Number of compressors line 1 4 1 6 12 9 Compressors type Type of compressors line 2 RECIPROCATING RECIPROCATING SCROLL c06 SCREW Compressors number Number of compressors line 2 0 1 6 07 umber of condensing Number of condenser lines in the system 1 D A ines 08 Line 1 Number of fans line 1 4 0 16 Line 2 Number of fans line 2 0 0 16 lt 09 Dedicated pRack board Condenser lines are on different boards NO NO YES or condenser line c10 display only Boards necessary pLAN boards required for the selected pre configuration An Save configuration Save Manufacturer configuration NO NO YES Load configuration Manual installation of Manufacturer configuration NO ne NO YES d02 Restore Carel default Manual installation of Carel default values NO ee NO YES Depending on he type of compressor pRack 0300011EN rel 1 2 04 12 2012 Depending on the unit of measure selected Depending on the compressor manu Depending on the hardware size acturer see relative paragraph 68 Tab 7 a CAREL 8 ALARMS pRack PR100 can manage both alarms relating to the status of the digital inputs and to operation of the system For each alarm the following are controlled The actions on the devices if necessary The output relays one global and two with different pr
136. e 1 a to the right of the value means that 0 100 Aa24 some form of power override is active display only F16 Power output of fan 16 on line 1 a to the right of the value means that 0 100 some form of power override is active Aa25 Discharge temperature Discharge temperature line 1 Mi display only External temperature Outside temperature line 1 aC Pressure Suction pressure line 2 ol Aa31 display Sat temp Saturated suction temperature line 2 i only Act setpoint Effective set point for pressure control with compensation applied line 2 Mi Mi Differential Control differential for pressure control line 2 SI 2 Pressure Suction pressure line 2 SE Aa32 Sat temp Saturated suction temperature line 2 ED 2 Act setpoint Effective set point for temperature control with compensation applied line EE display only 2 Differential Control differential for temperature control line 2 aC EG 49 pRack 030001 1EN rel 1 2 04 12 2012 CAREL Mask index Display description Description Default UOM Values Actual rea Capacity delivered capacity required for suction line line
137. e ER 3 pRack 0300011EN rel 1 2 04 12 2012 20 ExtraLarge TE 24 Vac Vdc 0 Vac Vdc 121 ssp 2807 Connessione sonda di pressione raziometrica NOT USED Jac Vdc For other kind of 4 20mA sensors ni check the relative technical RE EA EER A leaflets 0 Vac Vdc 5 6 24 Vac 230 Vac l 21 pRack 0300011EN rel 1 2 04 12 2012 CAREL 3 INSTALLATION 3 1 General installation instructions all the very low voltage connections analogue and 24 Vac Vdc digital inputs analogue outputs serial bus connections power supplies must have reinforced or double insulation from the mains network 3 1 1 Installation procedure in residential environments the connection cable between the pRack Environmental conditions PR100and the terminal must be shielded Avoid assembling the pRack PR100 and the terminal in environments with the there is no limit to the number of cables that can be connected to an following characteristics individual terminal The only limitation concerns the maximum current temperature and humidity that do not co
138. e automatic or semiautomatic e Manual the alarm is acknowledged by pressing the D Alarm button twice the first time displays the corresponding alarm screen and mutes the buzzer the second extended for at least 3 seconds cancels the alarm which is saved in the log If the alarm is still active acknowledgement has no effect and the signal is shown again e Automatic when the alarm condition ceases the alarm is automatically reset the LED comes on steady and the corresponding screen remains displayed until the D Alarm button is pressed and held the alarm is saved in the log e Semiautomatic acknowledgement is automatic until a maximum number of activations in set time If the number reaches the maximum set acknowledgement becomes manual For manual acknowledgement the functions associated with the alarm are not reactivated until acknowledgement has been completed while for automatic acknowledgement they re reactivated as soon as the alarm condition ceases 69 8 1 3 Log The alarm log can be accessed from branch Ga of the main menu by pressing the D Alarm button and then Enter when there are no active alarms by pressing Enter after having scrolled all the alarms The alarm log screens show 1 Order of activation no 01 is the oldest alarm 2 Hour and date the alarm was activated 3 Short description 4 Main values recorded at the moment the alarm was activated suction pressure an
139. e cutting speed controllers J9 2 Y2 analogue output no 2 0 10 V J9 3 GND analogue output reference J10 1 02 normally open contact relay no 2 normally open contact relay no 2 SSR 24 Vac Vdc J10 2 C2 common for relay 2 J11 1 G3 common for relays 3 4 5 6 7 J11 2 03 normally open contact relay no 3 J11 3 O4 normally open contact relay no 4 J11 4 05 normally open contact relay no 5 J11 5 06 normally open contact relay no 6 J11 6 07 normally open contact relay no 7 J11 7 G3 common for relays 3 4 5 6 7 J12 1 GND common for digital inputs and analogue inputs J12 2 D2 passive analogue input 7 NTC ON OFF J12 3 B7 passive analogue input 8 NTC ON OFF J12 4 B8 passive analogue input 8 NTC ON OFF depending on the mode Tab 2 a pRack 0300011EN rel 1 2 04 12 2012 10 CAREL 2 1 2 Technical specifications of the pRack PR100 Compact board Analogue inputs Analogue conversion 10 bit A D converter embedded in CPU Maximum number 8 Type Universal 2 inputs B1 B2 d CAREL NTC 50T90 G R T 10 kM 1 at 25 C NTC HTOT150 C Voltage 0 to 1 Vdc 0 10 Vdc 0 to 5 Vdc ratiometric Current 0 20 mA or 4 20 mA Input Resistance 100 9 Universal 2 inputs B3 B4 CAREL NTC 50T90 G R T 10 kM 1 at 25 C NTC HTOT150 C Voltage 0 to 1 Vdc PT1000 100T200 C R T 1000 Q at 0 C Universal 2 inputs B5 B6 9 C
140. e time e Optimised cycle time Based on the operating mode selected pRack PR100 calculates the valve activation percentage that satisfies the required capacity Fixed cycle time The compressor ON time is calculated as the percentage of the cycle time corresponding to the required capacity To Richiesta Tempo di ciclo The cycle time can be set to the optimum value suggested by the manufacturer to achieve maximum COP or to a higher value to increase resolution of the capacity delivered a higher cycle time implies greater continuity in the effective capacity that can be delivered Variable cycle time The compressor ON time is set to 2 s and the cycle time is calculated based on the required capacity T CICLO Toy Richiesta Optimised cycle time The compressor ON time is set to 2 s and the cycle time is calculated based on the required capacity for capacities less than 17 after which the cycle time is set to 12 s and the ON time varies In essence this mode is a combination of the previous two This guarantees the maximum possible COP and control rate obtained with the 12 s cycle time and the maximum control range starting from 10 Note the minimum capacity that can be delivered by Digital Scroll compressors is Minimum ON time Maximum cycle time 2 30 6 7 which also depends on the selected control mode for example in the first case shown in the figure the minimum capacity delivered is Minimum
141. e to Bbb12 Heat reclaim pump anual request for heat recovery pump line 2 0 0 v force pen Test Dout Enable DO test mode NO NO YES Timeout Test mode duration after last button pressed 10 min __ 0 500 Bc02 Test Aout Enable AO test mode NO NO YES Timeout Test mode duration after last button pressed 10 min 0 500 Bca10 DO1 DO 1 logic for test NO NO NC DO 1 value for test OFF OFF ON Bca26 DO29 DO 29 logic for test NO NO NC DO 29 value for test OFF OFF ON Bcb10 AO1 AO 1 value for test 0 0 0 0 100 0 Bcb12 AO6 AO 6 value for test 0 0 0 0 100 0 Mask index Display description Description Default UOM Values E T Compressors The VOs available depend on the selected configuration the following are just some exa mples For the complete list of VO positions available see Appendix A 5 DI Alarm 1 for compressor 1 DI position line 1 03 01 18 B1 B10 Caa01 Status display only Status of alarm 1 for compressor 1 DI line 1 SES Closed Open Logic Logic of alarm 1 for compressor 1 DI line 1 NC NC NO Function display only Alarm 1 for compressor 1 function status line 1 E Not active Active Line relay DO Compressor 1 part winding or star DO position and status On Off 01 29 display line 1 Part winding DO Sta
142. e variables and save them to an Dt file required 8 UpdatethesoftwareversiononpRackPR100 selectingfrom pRackLoad he following update files and selecting Update graphic resources and Enable zipped upload Jup maximum 2 files blx blb ClearAllx dev where x is the pLAN address of the board being updated 9 Wait for the update procedure to end 10 Powerdown disconnectthePCandifnecessaryreconnecttheterminal 11 Powerupagainandruna quick start up procedure pre configurations or Wizard confirming the default parameters 12 Power down 13 Reconnect pRack Manager and power up again 14 InCommissioning Settingsselectthe 2cffilerelatingtothenewversion now loaded on pRack Important if using the BMS serial port to read write variables pRack pR100 continues operating and therefore software malfunctions may occur Consequently use the RS485 serial port provided for the pLAN connection when carrying out the software update operations described above Note to update the software without maintaining the parameter configuration simply complete steps 1 to 4 and 8 to 10 in the previous procedure In this case the unit will need to be reconfigured using the complete start up procedure pRack 030001 1EN rel 1 2 04 12 2012 System configurations available CAREL 11 APPENDIX A 1 The system configurations available are shown in the table System configurations Configuration Description Suction C
143. ecovery temperature line 2 A se as display only An OUT modulat Status of modulating heat recovery valve output line 2 0 0 100 0 HR Preven Status of prevention via heat recovery line 2 OFF ZO Status Status of ChillBooster device line 1 OFF ZO Aaaz Ext temp Outside temperature line 1 E eles display only Ext temp thr ChillBooster activation threshold line 1 SEN Pu Time fan 100 umber of minutes elapsed with fans at 100 number of min allowed line 1 min 10 999 0 999 Status Status of ChillBooster device line 2 OFF OI Aaa1 Ext temp Outside temperature line 2 seat Bois Ext temp thr ChillBooster activation threshold line 2 DE ME display only Time fan 100 umber of minutes elapsed with fans at 100 number of minutes allowed min 0 999 0 999 line 1 51 pRack 030001 1EN rel 1 2 04 12 2012 CAREL Mask index Display description Description Default UOM Values Cond temp Saturated condensing temperature line 1 se e Aaa2 Liquid Temp Liguid temperature line 1 display only Subcooling Subcooling line 1 had ud Status Status of
144. ed contact relay no 13 J19 D15H digital input no 15 230 Vac J19 2 D15 digital input no 15 24 Vac Vdc J19 3 DC15 common for digital inputs 15 and 16 negative pole for DC power supply J19 4 D16 digital input no 16 24 Vac Vdc L J19 5 D16H digital input no 16 230 Vac J20 Y5 digital input no 5 0 10V J20 2 Y6 digital input no 6 0 10V J20 3 B9 passive analogue input 9 NTC PT1000 ON OFF J20 4 BC9 common for analogue input 9 J20 5 B10 passive analogue input 10 NTC PT1000 ON OFF 15 pRack 0300011EN rel 1 2 04 12 2012 CAREL Version Connector Signal Description J20 6 BC10 common for analogue input 10 J20 7 D17 digital input no 17 24 Vac Vdc J20 8 D18 digital input no 18 24 Vac Vdc J20 9 DC17 common for digital inputs 17 and 18 negative pole for DC power supply J21 O14 normally open contact relay no 14 normally open contact relay no 14 SSR 24 Vac Vdc J21 2 C14 common for relay no 14 J21 3 C14 normally closed contact relay no 14 not used J21 4 015 normally open contact relay no 15 normally open contact relay no 15 SSR 24 Vac Vdc L 21 5 EI common for relay no 15 J21 6 C15 _ normally closed contact relay no 15 not used J22 C16 common for
145. een the user is guided through the selection of the devices present Once the guided selection procedure has been completed the end result report is shown and if the configuration is suitable the parameters to start operation of the pRack PR100 can be installed directly including those associated with the inputs and outputs as described in parag 4 1 4 Note after having configured the parameters using the Wizard the configuration can be modified manually within the context of the selected system configuration Important before starting the pRack PR100 carefully check the settings made automatically by the software Tutorial Appendix A 3 shows a configuration example using the Wizard for an installation with two suction lines compressors fans Units in the pLAN as well pRack PR100 Version N index lines type N capacity step modulation No of N Jinverter as the terminal comp alarms 1 RS2 Piston Scroll 2 1 2 Compact 2 RS3 Piston Scroll 13 1 3 Small 3 RS3p Piston Scroll 13 1 3 2 1 Inverter edium 4 RS3i Piston Scroll 13 Inverter 3 1 Inverter edium 5 RS4 Piston Scroll 4 2 4 edium 6 RS4i Piston Scroll 4 Inverter 3 1 Inverter Large 7 SL3d Scroll 3 Digital 1 2 edium 8 SL5d Scroll 5 Digital 1 1 Inverter edium 9 SWI Screw 1 2 2 2 Small 10 SW2 Vite 2 2 2 1 Inverter 1 Small 11 d RS2
146. efinition start hour and minute end hour and minute suction line 1 TB4 gt i Time band 4 enabling and definition start hour and minute end hour f and minute suction line 1 Efd07 Changes Time band changes action CONFIRM amp SAVE LOAD PREVIOUS CLEAR ALL Copy to Copy settings to other days 0 MONDAY SUNDAY MON FRI MON SAT SAT amp SUN ALL DAYS Efe05 Gen A Measure Generic analogue input A unit of measure selection K C F barg psig ppm Generic probe A position Bl B1 B10 Generic probe A type 4 20MA on en display only Generic probe A value seed Efe06 Efe07 Upper value Generic probe A max limit 30 0 barg se Lower value Generic probe A min limi 0 0 barg na Calibration Generic probe A adjustment 0 0 barg i P DI Generic digital input F DI position 01 18 B1 B10 Efe16 Status display only Status of generic digital input F DI Closed Open Logic Logic of generic digital input F DI NC sn NC NO Function display only Status of generic digital input F DI eg zeg Not active Active DO Generic stage 1 DO position 01 29 PA Efe21 Status display only Status of generic stage 1 DO Closed Open Logic Logic of generic stage 1 DO NO NC NO Function display only Generic stage 1 DO function status Not active Active 63 pRack 0300011EN rel 1 2 04 12 2012 CAREL
147. ems alarms remember that the presence of voltage across the contact must be the normal operating condition while no voltage must represent an alarm situation This will ensure that any interruption or disconnection of the input will also be Signalled Do not connect the neutral in place of an open digital input Always interrupt the phase The 24 Vac Vdc digital inputs have a Resistance of around 5 kQ 3 4 1 Connecting the digital inputs Connecting the pRack Compact digital inputs The digital inputs on the pRack PR100 Compact are voltage free contacts The following figure shows a connection example Menu ey 4 serial card 1 CAREL Connecting the digital inputs S M L XL models All pRack digital inputs can be powered at 24 Vac and 24 Vdc while for models M L and XL only 230 Vac inouts are also available To maintain the optical isolation of the digital inputs a separate power supply must be used just for the digital inputs The connection diagrams shown in these figures which while being the more common and the more convenient do not exclude the possibility of powering the digital inputs independently from the power supply to the pRack PR100 In any case the inputs only have functional insulation from the rest of the controller 24 Vac digital inputs The following figure represents an example for connecting the 24 Vac digital inputs on pRack models S M L XL
148. enser line stops when both suction lines are off and starts when at least one suction line is on 33 Nota Certain special conditions or functions in the pRack software cause the unit to shutdown Configuration of some parameters e g inputs outputs configuration of compressors inverter parameters Installation of default parameters Manual management 6 2 Control pRack PR100 can manage two types of control e Proportional band P P I Neutral zone fixed times variable times Both types of control can be applied to both compressors and condensers according to the settings defined during start up or in main menu branches C a b C b b and D a b D b b The type of control chosen is independent for each line present either suction or condenser n addition pRack PR100 can use as the reference for control either the pressure or the converted temperature or the temperature read by probe if there is no pressure probe even if reference is only made to pressure below The control set point can be compensated by an offset linked to digital inputs probes supervisor or time bands for details see paragraph 6 5 relating to compressor and fan energy saving Both types of control are described below and are valid for both control of suction pressure and condensing pressure and operation with backup probes and or probes not working pRack 0300011EN rel 1 2 04 12 2012 6 2 1 Proportional band The operatin
149. er function with discharge temperature for on screw compressor 1 Min power activ Minimum screw compressor 1 capacity for economizer activation 75 0 25 50 75 100 Cond press check Enable economizer function with condensing temperature for screw DIS DIS EN compressor 1 Ecab06 Setpoint Setpoint for economizer function with condensing temperature for 60 0 CPF screw compressor 1 Differential Differential for economizer function with condensing temperature for 5 0 CE screw compressor 1 Discharge temperature probe position compressor 1 line 1 BI B1 B10 Compressor 1 discharge temperature probe position line1 4 20MA zm NTC PT1000 0 1V 0 10V Edaa01 4 20MA 0 5V HTNTC display only Compressor 1 discharge temperature probe type line 1 Men Upper value Compressor 1 discharge temperature probe value line 1 30 0 barg md Lower value Compressor 1 discharge temperature probe max limit line 1 0 0 barg inn 9 Calibration Compressor 1 discharge temperature probe min limit line 1 0 0 barg ssa il Compressor 1 discharge temperature probe adjustment line 1 HA di DO njection valve DO position compressor 6 line 1 01 29 Edaa12 Status display only njection valve DO status compressor 6 line 1 Closed Open E Logic njection valve DO logic compressor 6 line 1 NO NC NO Function display only njection valve function status compressor 6 line 1 Not active
150. erature alarms 1 to 5 PLB4 anual automatic Settable Settable ALG15 Generic low temperature alarms 1 to 5 PLB1 anual automatic Settable Settable ALG16 Generic low temperature alarms 1 to 5 PLB2 anual automatic Settable Settable ALG17 Generic low temperature alarms 1 to 5 PLB3 anual automatic Settable Settable ALG18 Generic low temperature alarms 1 to 5 PLB4 anual automatic Settable Settable ALG19 Generic high modulation alarms 6 and 7 PLB1 anual automatic Settable Settable ALG20 Generic high modulation alarms 6 and 7 PLB2 anual automatic Settable Settable ALG21 Generic high modulation alarms 6 and 7 PLB3 anual automatic Settable Settable ALG22 Generic high modulation alarms 6 and 7 PLB4 anual automatic Settable Settable ALG23 Generic low modulation alarms 6 and 7 PLB1 anual automatic Settable Settable ALG24 Generic low modulation alarms 6 and 7 PLB2 anual automatic Settable Settable ALG25 Generic low modulation alarms 6 and 7 PLB3 anual automatic Settable Settable ALG26 Generic low modulation alarms 6 and 7 PLB4 anual automatic Settable Settable ALG27 Normal alarm generic functions 8 9 PLB1 anual automatic Settable Settable ALG28 Serious alarm generic functions 8 9 PLB1 anual automatic Settable Settable ALG29 Normal alarm generic functions 8 9 PLB2 anual automatic Settable Settable ALG30 Serious alarm generic functions 8 9 PLB2 anual automatic Settable Settable ALG31 Normal alarm generic funct
151. erent conditions start stop increase decrease standby The figure shows one possible example V1 v2 Start Stop O O Increase 25 to 100 ei Decrease 25 to 100 Standby O Tab 6 f If intermittent pulsating valves are used the cycle time also needs to be set Intermittent valves are opened closed for 50 of the set time while for pulsating valves the opening and closing time in theory depend on the difference between the position of the slide and the capacity request As the position of the slide is generally not measurable the variation in the request is used to calculate the times for pulsating valves Note in continuous control operation is normally only allowed for an undetermined time when the capacity exceeds 50 Starting procedure pRack PR100 can manage the starting procedure for the screw compressors by considering following the star delta or part winding starting selected a further time of operation at minimum capacity established by the manufacturer or set to 60 s for generic compressors Once the starting procedure has ended the compressor starts varying the capacity according to the control request and if necessary considering the duration at minimum capacity Series of compressors supported pRack PR100 can manage several series of screw compressors made by the main manufacturers Bitzer Refcomp Hanbell which come with the parameters described above already set
152. ers set in main menu branch D a g D b g Enabling fan speed limitation from the digital input or based on time bands is independent conseguently the speed is limited to the set value when at least one of the two conditions is active Up to 4 activation bands can be set for each day of the week 6 4 5 Split condenser pRack PR100 can manage the possibility to exclude some fans from operation for example to reduce condenser operation in winter using he split condenser function The function can be enabled and the related parameters set in main menu branch D a g D b g Split condenser can be used to exclude from rotation fans whose index is even odd higher than a settable value e lower than a settable value The function can be activated by time bands winter summer seasons e digital input e supervisor outside temperature set threshold and differential Note the split condenser function can be disabled by parameter if the high pressure prevention function is activated see paragraph 8 3 3 If split condenser is disabled due to activation of the high pressure prevention function it remains disabled for a set time after which it is reactivated split condenser cannot be enabled if there is a speed modulation device that controls all the fans 6 4 6 Manual operation pRack PR100 can also manage the same three manual operating modes for the fans as described for the compressors e Enabling Man
153. essor 10 line Delta relay compressor 10 line Bac57 Caa97 Valve 1 compressor 10 line Bac60 Caa98 Balancing valve compressor 10 line Bac61 Caaaa Relay line compresso 3 D Partwinding Star relay compressor 11 line Delta relay compressor 11 line Bac62 Caaab gt D Valve 1 compressor Bac65 Caaac Balancing valve compressor ine Bac66 Caaae Relay line compressor 12 line Partwinding Star relay compressor 12 line Delta relay compressor 12 line Bac67 Caaaf Valve 1 compressor 12 line Bac70 Caaag Ebaa01 Balancing valve compressor 12 line Subcooling valve line 1 Line 1 Condenser Bacbt Daa21 Fan 1 line 1 Bacbu Daa22 Fan 2 line 1 Bacbv Daa23 Fan 3 line 1 Bacbw Daa24 Fan 4 line 1 Bacbx Daa25 Fan 5 line 1 Bacby Daa26 Fan 6 line 1 Bacbz Daa27 Fan 7 line 1 Bacca Daa28 Fan 8 line 1 Baccb Daa29 Fan 9 line 1 Baccc Daa30 Fan 10 line 1 Baccd Daa31 Fan 11 line 1 Bacce Daa32 Fan 12 line 1 Baccf Daa33 Fan 13 line 1 Baccg Daa34 Fan 14 line 1 Bacch Daa35 Fan 15 line 1 Bacci Daa36 Fan 16 line 1 pRack 0300011EN rel 1 2 04 12 2012 84 CAREL Mask Index Description Chan Logic Notes Bacck Eeaa03 Heat recovery pump line 1 Baccl Egaa02 Chi
154. essor 12 line 2 Baaas Cbaak Liguid level alarm line 2 Baadd Fan inverter warning line 2 Baaag Common high pressure switch line 2 Baabn Dba01 Fan overload 1 line 2 Baabo Dba02 Fan overload 2 line 2 Baabp Dba03 Fan overload 3 line 2 Baabq Dba04 Fan overload 4 line 2 Baabr Dba05 Fan overload 5 line 2 gt Baabs Dba06 Fan overload 6 line 2 Baabt Dba07 Fan overload 7 line 2 8 Baabu Dba08 Fan overload 8 line 2 5 Baabv Dba09 Fan overload 9 line 2 LJ Baabw Dba10 Fan overload 10 line 2 Baabx Dba11 Fan overload 11 line 2 Baaby Dba12 Fan overload 12 line 2 Baabz Dba13 Fan overload 13 line 2 Baaca Dba14 Fan overload 14 line 2 Baacb Dba15 Fan overload 15 line 2 Baacc Dba16 Fan overload 16 line 2 Baacd Dba17 Common fan overload line 2 Baace Heat recovery line 2 Egba0 ChillBooster fault line 2 3 Baade Enable floating condensing line 2 E Baacm Cbd06 Dbd08 Set point compensation line 2 Dba43 Anti noise line 2 Dba44 Split condenser line 2 6 Dba45 Enable floating condensing line 2 Eeba02 Heat recovery activation line 2 Baacf Efe16 Generic DI F Baacg Efe17 Generic DI G Baach Efe18 Generic DI H 2 Baaci Efe19 Generic DI 5 Baacj Efe20 Generic DI J sa Baacn pRack automatic or manual operation Baadf pLoads digital input 1 Baadg pLoads digital input 2 83 Tab A c pRack 0300011EN rel 1 2 04 12 2012 Digital outputs Mask Index Description Chan Logic Notes CAREL Bac02
155. eutral zone 90 S 0 9999 ime control suction line 1 Power unload to 0 min inimum time to decrease capacity request to 0 Neutral zone control 30 S 0 9999 Cab13 ime suction line 1 Power unload to 0 max Maximum time to decrease capacity request to 0 Neutral zone control 180 S 0 9999 ime suction line 1 Working hours Compressor 1 operating hours line 1 h 0 999999 Compressor 1 Cac01 Check in Compressor 1 remaining operating hours line 1 h 0 999999 Compressor 2 Compressor 2 operating hours line 1 h 0 999999 Check in Compressor 2 remaining operating hours line 1 h 0 999999 Working hours Compressor 11 operating hours line 1 h 0 999999 Compressor 11 Cac11 Check in Compressor 11 remaining operating hours line 1 h 0 999999 Compressor 12 Compressor 12 operating hours line 1 h 0 999999 Check in Compressor 12 remaining operating hours line 1 HE h 0 999999 Cac13 Compressor threshold Compressor maintenance threshold hours line 1 88000 h 0 9999999 working hours Cac14 Compressor hours reset Reset compressor operating hours line 1 N NO YES Enable suction setpoint Enable setpoint compensation suction line 1 NO NO YES Cad01 compensation _ _ Enable compensation by Enable setpoint compensation by probe suction line 1 NO NO YES analog Cad02 Winter offset Offset applied for Winter period 0 0 999 9 999 9 Closing offset Offset applied for closing period 0 0 999 9
156. fans per line When there are two suction lines the lines can be managed by the same pRack board or by separate boards The condenser lines can be managed by the board that manages the suction line or by separate boards in accordance with the number of inputs outputs available For each line both suction and condensing pRack PR100 can manage a modulating device inverter Digital Scroll compressor or compressor with continuous control pRack PR100 manages up to 1 line with screw compressors and each board can control up to 2 compressors Some examples of the system configurations managed are shown below while for the complete list of the configurations and the related features see Appendix A1 Example 1 1 suction line with scroll or piston compressors 1 condenser line Board with pLAN P Del address 1 D Dik Gees Ill ol Fig 1 a Example 2 2 suction lines on the same board with scroll or piston compressors I condenser line cate vol Board with PLAN address 1 Example 3 2 suction lines on the same board with scroll or piston compressors 2 condenser lines on the same board gt gt lt gt gt 1 0 Board with PLAN address 1 VO
157. fferential Condensing pressure prevent differential line 1 0 0 barg 0 0 to 99 9 Gba02 S SE s Decrease compressor Decreasing capacity time line 1 0 S 0 999 power time Enable Heat Reclaim as Enabling heat recovery as first stage for condensing HP prevent NO NO YES Gba03 first prevent step line 1 Offset HeatR Offset between heat recovery and prevent setpoint line 1 0 0 barg CE 0 0 to 99 9 Enable ChillBooster as first Enable ChillBooster as first stage for condensing HP prevent line 1 NO NO YES Gba04 prevent step Offset Chill Offset between ChillBooster and prevent setpoint line 1 0 0 barg 0 0 to 99 9 Prevent max num Maximum number of prevent allowed before locking compressor line 1 13 L S Gba0s Prevent max number Prevent maximum number evaluation time 60 h 0 999 evaluation time Reset automatic prevent _ Reset number of prevent line 1 NO NO YES Common HP type Type of reset for common HP alarm line 1 AUTO AUTO Gca01 MAN Common HP delay Common high pressure delay line 1 10 s 0 999 Gca02 Common LP start delay Low common condensing pressure delay at start up line 1 60 S 0 999 Common LP delay Low common condensing pressure delay during operation line 1 20 S 0 999 Time of semi automatic Period of LP evaluation line 1 120 min 0 999 Gca03 alarm evaluation N of reties before alarm umber of LP in period after which the alarm becomes manual 5 0 999 becomes manual line 1 Gca04 Liquid alarm
158. g principle is normal proportional or proportional integral control P P The control set point is central consequently for proportional control only operation is schematised in the following figure Regulation request Regulation probe value Differential Differential Setpoint Fig 6 b For example for 4 devices with the same capacity and proportional only control start up occurs as shown in the figure Devices activation Suction Differential Differential pressure Setpoint Fig 6 c With P 1 control added to the effect of the proportional action described above is the integral action used to achieve a null control error in steady operation as shown in the figure Regulation variable PHI Setpoint Fig 6 d The integral action depends on the time and the deviation from the set point This modifies the request if the control value does not approach the set point for some time The integral time setting represents how fast integral control is implemented low values determine fast and intense control action high values determine slower and more stable control action It is recommended to not set a value that is too low for the integral time to avoid instability Note the set point is in the centre of the activation band therefore when reaching the set point some devices are on even with purely proportional control pRack 0300011EN rel 1 2 04 12 2012 34
159. ges pRack 0300011EN rel 1 2 04 12 2012 32 CAREL 6 FUNCTIONS pRack PR100 can manage up to 2 suction lines and 2 condenser lines Many of the functions described in this chapter apply in the same way to all the lines e g control rotation while others apply in the same way to the suction lines e g oil management The exception involves the generic functions that apply irrespective of line suction or condenser to pRack boards with pLAN addresses from 1 to 4 Where not expressly indicated or where it is clear that the description refers to one specific line rather than another e g compressor or fan management the descriptions are considered as being common to all lines any specific Situations are described on a case by case basis Below is a chart of the main functions described and their field of application Function L1 suction L2 suction L1 condens L2 condens Unit On Off M M v Control P contro d V V d Control in Neutral zone V V V d Modulation in Neutral zone V v V d Control with backup probes V V V V Rotation V v V d Modulation device d v V d Compressors Screw compressors V 3 S 2 Reciprocating and scroll compressors V V Digital Scroll compressors V v hi S Fan management R V V Energy saving Set point compensation V v v d Floating set point V V V V Accessory functions Oil management v d S Subcooling V v 3 Econo
160. he digital inputs 3 5 Connecting the analogue outputs 3 6 Connecting the digital outputs 37 PLAN electrical Connections EE 4 START UP 28 4 1 Starting the first time 28 5 USER INTERFACE 30 5 1 Graphic terminal 5 2 Description of the display 5 3 Password 54 Description menu 6 FUNCTIONS 33 Gli Ator 33 6 2 Control 6 3 64 6 5 Energy saving 6 6 Accessory functions 6 7 Settings 6 8 anaging the default Values 47 7 PARAMETERS TABLE 48 8 ALARMS 69 8 1 Alarm management 69 B 2 Compressor aarme N Oe N 69 83 Pressure and prevent aarme 70 9 SUPERVISORY AND COMMISSIONING SYSTEMS 72 9 1 PlantVisor PRO and PlantWatch PRO supervisory Systems sesse 72 92 Commissioning SOPWALE Lu 72 10 UPDATING THE SOFTWARE 73 10 1 Updating using pRack Manager 73 10 2 Updating using Gmartkew EE 73 10 3 Saving parameters between different software versions 73 11 APPENDIX 74 pRack 0300011EN rel 1 2 04 12 2012 CAREL 1 INTRODUCTION 1 1 Mainfeatures List of functions Main characteristics Up to 2 suction lines and 2 condenser lines Management of scroll piston digital scroll screw compressors Up to 12 scroll or piston compressors per line Up to 2 screw compressors for line 1 maximum one line with screw compressors Up to 16 fans per line Inverter on suction and condense
161. he pRack PR100 software prepares to configure the board with address 2 in the pLAN COP fata PRAECE m m pRack 0300011EN rel 1 2 04 12 2012 78 CAREL After having answered the questions for the configuration of the second suction line the software then asks if there is a pLAN board dedicated to condenser line 1 In the case shown in the example answer NO COPS SSO CPi a Eu Deda Cat ed FRAKK MET For COPE a Pr Late HO Fig A x After having configured condenser line 1 the software asks if condenser line 2 is used answer YES AP esp Late Mors a Sure Cordes Fra Fi in Fig A y After having configured the second condenser line the software offers the option to automatically configure the I Os choosing YES as described in par 4 1 4 If choosing NO each individual I O needs to be configured manually at the end of the wizard In addition the software asks the user whether or not to display a summary of the settings made gu tela YES bi ZAP HE Fi CGonn4 ZO OF a FE Fig A z If the settings are correct the set values can be installed All boards FreSent CEHTER LO OF i FLIES Fig A aa After waiting a few seconds the unit can be started EULLESE FULL sont Fresz ENTER LO CO Pie Fig A ab Note after having configured pRack PR100 the device needs to be switched off and on again to permanently save the new data CA
162. he temperature and pressure units of measure can be changed from C barg to F psig only during start up mixed configurations are not allowed for example F and barg 6 6 8 Sign of life pRack PR100 can manage a digital output acting as a sign of life activated when pRack PR100 is powered up This output remains active while the controller is working correctly and highlights any hardware faults The Signal can be configured in main menu branch B a c pRack 0300011EN rel 1 2 04 12 2012 CAREL 6 6 9 Liquid non return pRack PR100 can manage a digital output with the meaning of liquid non return This normally active output is deactivated when all the compressors are off and no compressor can be started due to alarms or time settings despite the control request or when the unit is OFF As soon as at least one compressor is enabled to start the output is deactivated allowing management of a liquid non return valve The function can be configured in main menu branch C a g C b g 6 6 10 Interaction with pLoads pRack PR100 can interact with the pLoads controller which manages power using a load cut off function Interaction can be enabled and the related parameters set from main menu branch C a d and C b d Interaction between pRack pR100 and pLoads uses digital inputs or the supervisor The digital inputs have higher priority therefore if a digital input is not active the corresponding action is not produ
163. he terminal detects inactivity of the pRack board whose output is being displayed the display is cleared and a message similar to the one below is shown Da SP LS Sages als Fig A m If the terminal detects inactivity of the entire pLAN network that is it does not receive any messages from the network for 10 seconds consecutively it clears the display and shows the following message br L THH Fig A n A 2 2 Setting the address of the pRack PR100 board The pLAN address of the pRack boards can be set from any pGD1 terminal using the following procedure 1 setaddress 0 on the terminal see the previous paragraph for details on how to set this address 2 power down the pRack PR100 board 3 disconnectanypLANconnectionstootherboardsfromthepRackPR100 board 4 connect the terminal to the pRack PR100 board D power upthe pRackPR100 board while pressingthe and m buttons on the terminal together After a few seconds the pRack PR100 board begins the start up sequence and the display shows a screen similar to the one below dd EEE BELFTLEETL PLEASE Wait ed EE Fig A o 6 when this screen is displayed wait 10 seconds and then release the buttons 7 the pRack PR100 board interrupts the start up sequence and shows a configuration screen similar to the one below ENTER Fig A p Then set the pLAN address using the and Y buttons on the terminal 8 Confirmtheaddress by pressing 7 the pRackPR10
164. hillBooster activation line 1 Ext Temp Thr Outside temperature threshold for ChillBooster activation line 1 30 0 C far ED Sanitary proc Enable hygiene procedure line 1 Disab DISABLE ENABLE Egab03 start at Hygiene procedure starting time line 1 00 00 du Eg Duration Hygiene procedure duration line 1 0 min __ 0 to 30 Ext temp thr Outside temperature threshold for hygiene procedure activati line 1 5 0 C a ies 9 ChillBooster reguires ChillBooster maximum running time line 1 200 h 0 999 Egab04 maintenance after Reset maintenance time ChillBooster maintenance time reset line 1 O O YES Avoid simultaneous Enable simultaneous compressor start up inhibition O e O YES Ehb01 pulses betw lines Delay Delay between start up for compressors on different lines 0 S 0 999 Force off L2 Comp s for Enable line 2 compressor switch OFF due to line 1 compressor fault O me O YES Ehb03 line 1 faul n Delay Delay for line 2 compressor switch off after serious alarm on line 1 0 s 0 999 compressors Switch on L1 Comp s for Enable line 1 compressor switch ON due to line 2 compressor O O YES L2 activation switch ON Ehb04 Switch on period Delay for line1 compressor switch on for line 2 compressor switch on 30 S 0 999 Force off line 2 if line 1 Enable line 2 compressor switch OFF due to line 1 switch OFF O z O YES is off Enable min threshold for Enable L1 activation by DSS only when suction pressure is greater than NO O
165. ine 1 Diff Suction pressure control differential proportional control line 1 ZE sa User setp User defined set point for suction pressure control proportional control bag PF sic line 1 Actual setpoint Effective set point for suction pressure control proportional control with sey ME Ab02 compensation applied line 1 display only eutral zone eutral zone for suction pressure control line 1 b s E ncr diff ncrease differential for suction pressure control neutral zone control line 1 A via Decr diff Decrease differential for suction pressure control neutral zone control Ss md line 1 User setp User defined set point for suction pressure control proportional control Da sa Ab03 line 2 S Actual setp Effective set point for suction pressure control proportional control with bal ME e display only H i compensation applied line 2 Diff Suction pressure control differential proportional control line 2 Go ie User setp User defined set point for suction pressure control proportional control Sex md line 2 Ab04 Actual setp Effective set point for suction pressure control proportional control with dai af i compensation applied line 2 display only Neutral zone eutral zone for suction pressure control line 2 ke sa Incr diff ncrease differential for suction pressure control neutral zone control line 2 ni a Decr diff Decrease differential for suction pressure co
166. ine 1 5 S 0 60 Ext Temp Manage Enable speed up management by outside temperature condenser line DIS gt DIS EN 1 Dag13 Ext Temp Thresh Outside temperature threshold for speed up management 250 C 99 9 99 9 condenser line 1 Ext Temp Diff Outside temperature differential for speed up management 25 99 9 99 9 condenser line 1 Dag14 Enable condensing press Enable the screens for condensing pressure backup probe NO zem NO YES backup probe configuration condenser line 1 Dag15 Request in case of egulat Value of fans forcing in case of condensing probes fault line 1 50 0 0 0 100 0 probes fault The following parameters refer to line 2 for details see the corresponding parameters for line 1 above pRack 0300011EN rel 1 2 04 12 2012 60 CAREL Mask index Display description Description Default UOM Values DI Fan 1 overload DI position line 2 01 18 B1 B10 Status display only Status of fan 1 overload DI line 2 Closed Open Dba01 Logic Logic of fan 1 overload DI line 2 NC 3 Function display only Fan 1 overload function status line 2 ot active Active Regulation by Condenser control b
167. input precision 30 mV 0 5 V input precision 15 mV 0 20 mA input precision 0 06 mA Tab 2 1 Important the 21 Vdc available at terminal VDC J2 can be used to power any active probes The maximum current is 150 mA thermally protected against short circuits To power the 0 5 V ratiometric probes use the 5 V available at terminal 5Vref J24 The maximum current is 60 mA pRack 0300011EN rel 1 2 04 12 2012 16 CAREL Digital inputs Type optically isolated Maximum number no of 24 Vac 50 60 Hz or 24 Vdc no of 24 Vac 50 60 Hz or 230 Vac Total optically isolated inputs 50 60 Hz optically isolated inputs pRack PR100 S 8 0 8 pRack PR100 M XL 12 2 14 pRack PR100 L 14 2 2 18 Minimum digital input impulse detection time Normally open open closed open 200 ms Normally closed closed open closed 400 ms Power supply to the inputs External 230 Vac o 24 Vac 50 60 Hz 10 15 24 Vdc 10 20 Classification of the measurement circuits Category I 24 Vac Vdc IEC EN 61010 1 Category Ill 230 Vac Tab 2 m AN Important the 2 inputs 230 Vac or 24 Vac Vdc present at terminals J8 ID13 ID14 have the same common pole and therefore must be set to the same voltage 230 Vac or 24 Vac Vdc There is basic insulation between the 2 inputs The same is true for J19 ID15 ID16 inthe event of direct current 24 Vdc connect the negative pole to the common terminal Analogue out
168. ion 1 NO NO YES Cutoff diff Cut off differential for generic modulating function 1 0 0 C EE Cutoff hys Cut off hysteresis for generic modulating function 1 0 0 C a Low alarm Low alarm enabling for generic modulating function 1 DISAB sn DISABLE ENABLE Efb20 Low alarm Low alarm threshold for generic modulating function 1 0 0 C sa i p Delay time Low alarm delay for generic modulating function 1 0 S 0 9999 Alarm type Low alarm type for generic modulating function 1 LIGHT vir LIGHT SERIOUS Ffc05 Gen alarm 1 Enable generic alarm function I management DISAB SS DISABLE ENABLE Gen alarm 2 Enable generic alarm function 2 management DISAB Ss DISABLE ENABLE Regulation variable Monitored variable for generic alarm function 1 Ffc06 Enable Enabling variable for generic alarm function 1 ks A Description Enable description change SKIP SKIP CHANGE EE Description te Ffc07 Alarm type Alarm type for generic alarm function 1 LIGHT Ss LIGHT SERIOUS 7 Delay time Delay for generic alarm function 1 0 S 0 9999 Generic Function Sche Enable generic scheduler function DISAB DISABLE ENABLE duler Efd05 Gen funct scheduling Generic scheduler function considers the same special days and periods NO NO YES connected to global of global scheduler scheduling Efd06 Enable Enabling variable for generic scheduler function oe Activ Time Bands Day of the week MON SUN TB1 gt Time band 1 enabling and d
169. ion devices Reciprocating Inverter Scroll Inverter er Digital Scroll Inverter Screw Continuous capacity control Tab 6 b O Note The same modulation device is used on each line The maximum number of compressors and load stages per line varied according to the type of compressor Compressors and modulation devices Compressors Maximum No Load stages Reciprocating 12 24 total Scroll 12 24 total Screw 2 4 Tab 6 c Note Screw compressors can only be configured on line 1 and the board must be dedicated only to line The compressor size refers to its capacity and number of load stages or to the inverter presence therefore different sizes need to be defined for compressors with the same capacity yet a different number of load stages The inverter is always associated to size 1 Tutorial below is one example of some possible configurations One line 4 reciprocating compressors with the same capacity the first with inverter 2 sizes One line 4 scroll compressors with the same capacity the first Digital Scroll 1 sizes One line 4 reciprocating compressors with the same capacity the first two with 4 load stages the other two not capacity controlled 2 sizes e One line 4 reciprocating compressors with the same capacity and 4 load stages each 1 size e Two lines line 1 with 2 screw compressors with the same capacity the first with continuous modulation line 2 with 4 reciprocating com
170. ions 8 9 PLB3 anual automatic Settable Settable ALG32 Serious alarm generic functions 8 9 PLB3 anual automatic Settable Settable ALG33 Normal alarm generic functions 8 9 PLB4 anual automatic Settable Settable ALG34 Serious alarm generic functions 8 9 PLB4 anual automatic Settable Settable ALHO1 ChillBooster fault Automatic Settable R2 Disable ChillBooster ALHO2 ChillBooster fault line 2 Automatic Settable R2 Disable ChillBooster ALO02 PLAN malfunction Automatic 60s RI Shutdown unit ALTO1 Compressor maintenance request anua otfeatured ALTO2 Compressor maintenance request line 2 anua ot featured ALTO3 ChillBooster maintenance reguest manua Os ot featured ALTO4 ChillBooster maintenance request line 2 manua Os ot featured ALUO1 Configuration not allowed Automatic Not featured ot featured Shutdown unit ALUO02 Control probes missing Automatic Not featured ot featured Shutdown unit ALWO1 High pressure prevent warning Automatic Settable ot featured Shutdown compressor except minimum load stage ALWO2 High pressure prevent warning line 2 Automatic Settable ot featured Shutdown compressor line 2 except minimum load stage ALWO3 _ Compressor inverter warning Automatic ot featured ot featured ALWO4 _ Compressor inverter warning line 2 Automatic ot featured ot featured ALWOS Fan inverter warning Automatic ot featured ot featured ALWO6 Fan inverter warning line 2 Automatic ot featured ot featured ALW
171. iorities if configured The red LED on the terminal and the buzzer where present The type of acknowledgement automatic manual semiautomatic e Any activation delay The complete list of alarms with the related information as described above is available in Appendix AA 8 1 Alarm management All alarms feature the following behaviour When an alarm is activated the red LED flashes and the buzzer is activated where present the output relays corresponding to the global alarm and to any alarms with priority are activated if configured Pressing the 7 Alarm button the red LED stays on steady the buzzer is muted and the alarm screen is shown If there is more than one active alarm these can be scrolled using N Up 4 Down This condition is signalled by an arrow at the bottom right of the screen e Pressing the DR Alarm button again for at least 3 seconds acknowledges the alarms manually and these are cleared from the display unless others are active they are saved in the log 8 1 1 Priority For certain alarms the alarm output relay can be set with two types of priority e R1 serious alarm e R2 normal alarm The corresponding relays once configured are activated when an alarm with the corresponding priority occurs For the other alarms the priority is fixed and is associated by default with one of the two relays 8 1 2 Acknowledgement The alarms can manual acknowledgement hav
172. ironmental pollution 2 Class according to protection against electric shock to be integrated into Class 1 and or 2 appliances Period of stress across the insulating parts long Type of action 1C Type of disconnection or microswitching microswitching Category of Resistance to heat and fire Category D UL94 V0 mmunity against voltage surges Category 11 Ageing characteristics operating hours 80 000 o of automatic operating cycles 100 000 EN 60730 1 30 000 UL 873 Software class and structure Class A Category of immunity to voltage surges IEC EN 61000 4 5 Category 2 IEC EN 61000 4 5 Clock Error at 25 C 5 3 min year Error in the temperature range 10T60 C 27 min year Ageing lt 5ppm 42 7min yean Battery duration 3 ypically 6 months 8 months maximum Recharge time pically 5 hours lt 8 hours maximum 2 1 6 pRack PR100 Compact board dimensions Tab 2 1 x N p GI EE S 21 78 07 mg Eeue EERS J5 J6 J7 JB souno J9 4310 7 C668A012 RO T_T FEAT A aen rer hoge jar ANN DAN Lalli aaga serial card 1 J2 B5 86 GND 5Vief 7 105 60 Fig 2 b pRack PR100 Compact product certification UL 873 and C22 2 No 24 93 Temperature indi
173. kup condensing pressure probe line 2 Bab48 Dba38 Discharge temperature probe line 2 Bab49 Liquid temperature probe line 2 ep Bab14 Eeba05 Heat recovery outlet temperature probe line 2 E Bab18 Eaba04 Oil temperature probe line 2 5 Bab35 Ecba01 Edba01 Discharge temperature probe compressor 1 line 2 Bab36 Ecba02 Edba02 Discharge temperature probe compressor 2 line 2 Bab37 Ecba03 Edba03 Discharge temperature probe compressor 3 line 2 Bab38 Ecba04 Edba04 Discharge temperature probe compressor 4 line 2 Bab39 Ecba05 Edba05 Discharge temperature probe compressor 5 line 2 Bab40 Ecba06 Edba06 Discharge temperature probe compressor 6 line 2 Bab47 Eaba05 Oil temperature probe compressor 1 line 2 Bab19 Efe06 Generic active probe A Bab20 Efe07 Generic passive probe A Bab21 Efe08 Generic active probe B Bab22 Efe09 Generic passive probe B 5 Bab23 Efe10 Generic active probe C E Bab24 Efe11 Generic passive probe C 8 Bab25 Efe12 Generic active probe D Bab26 Efe13 Generic passive probe D Bab27 Efe14 Generic active probe E Bab28 Efe15 Generic passive probe E Bab58 Energy meter Tab A e Analogue outputs ask Index Description Chan Logic Notes Bad01 Caa14 Compressor inverter output line 1 Bad02 Eaaa14 Oil pump output line 1 Bad07 Daa38 Fan inverter output line 1 E Bad08 Eeaa04 Heat recovery valve output line 1 Bad12 Efe29 Generic modulating output 1 Eaaal7 Oil cooling pump output screw compressor 1 Bad04 Compressor inverter
174. l cabinet must be chosen The pRack PR100is installed on a DIN rail To fasten the unit to the DIN rail so as to guarantee correct physical separation of the instrument from the power components solenoids contactors actuators inverters and the connected cables Proximity to such devices cables may create random malfunctions that are not immediately evident press it lightly against the rail The rear tabs will click into place locking the unit to the rail Removing the unit is just as Simple using a screwdriver through the release slot to lever and lift the tabs The tabs are kept in the locked position by springs The structure of the panel must allow the correct flow of cooling air 3 1 2 Wiring procedure 3 2 Power supply When laying the wiring physically separate the power part from the control part The proximity of these two sets of wires will in most cases Power supply to the 28 36 Vdc 10 20 or24 Vac 10 15 50 60 Hz pRack PR100 S M Maximum current P 15 W power supply Vdc P 40 VA L XL Vac controller with ter minal connected cause problems of induced disturbance or over time malfunctions or damage to the components The ideal solution is to house these two circuits in two separate cabinets Sometimes this is not possible and therefore the power part and the control part must be installed inside the Power supply to DC power supply 48 Vdc 36 Vmin 72 Vmax same p
175. limited number of switching cycles and thus would not be supported by electromechanical relays e g screw compressor valves They are dedicated to loads powered at 24 Vac Vdc with a maximum power Pmax 10 W Important the SSRs can control resistive loads powered at 24 Vac Vdc maximum power Pmax 10 W For details see paragraph 2 2 2 The figure shows a connection example for resistive loads 24 Vac SEN CAREL The following figure illustrates correct applications for inductive loads external SSR input management 111 service card field card Fig 3 0 ue lie 3 Dedicated or the same of external SSR 2 G GO but not in common nauk with other external load ee load N management DU service card D are Compressor Rack Controller field card The table below shows the reference outputs for pRack models fitted with SSR outputs Hardware Version Reference Relay SSR Terminal Compact 12 J3 5 7 8 J14 J15 M 7 12 J14 J15 L XL 7 12 14 15 J14 J15 J21 Tab 3 1 Important the SSR relay load is powered at 24 Vac Vdc thus all the other terminals in the group must be powered at 24 Vac Vdc due to the absence of double insulation within the group Moreover the other terminals of the group can be powered at 110 230 Vac using a safety transformer Class 2
176. line 1 10 0 C EFFE ha Delay Common oil high temperature alarm delay line 1 0 S 0 to 32767 Faab10 En oil lev manag Enable oil level management line 1 NO NO YES um Alarm oil level Number of compressor alarm associated with oil level line 1 0 0 to 4 7 Faab11 Time open Oil level valve opening time line 1 0 3 0 999 E Time close Oil level valve closing time line 1 0 s 0 999 DO Subcooling valve DO position line 1 01 29 Ebaa01 Status display only Status of subcooling valve DO line 1 Closed Open 8 Logic Logic of subcooling valve line 1 NO eg NC NO Function display only Subcooling valve function status line 1 Not active Active Subcooling control Enable subcooling function line 1 NO NO YES Subcooling control type line 1 BY COND amp BY COND amp LIQUID TEMP EbabO1 LIQUID TEMP ONLY BY LIQUID TEMP Threshold Threshold for subcooling control line 1 0 0 C 9999 9 9999 9 Subcool value display Subcooling value line 1 0 0 C 999 9 999 9 only Discharge temperature probe position compressor 1 line 1 Bl B1 B10 PA Type of discharge temperature probe compressor 1 line 1 A 20MA _ _ NTC PT1000 0 1V 0 10V Ecaa01 4 20mA 0 5V HTNTC display only Discharge temperature value compressor 1 line 1 ES Upper value Maximum discharge temperature value compressor 1 line 1 30 0 barg 1 0 Lower value Minimum discharge temper
177. line umber of suction lines featured in the pre configuration Oto2 i Condenser line umber of condenser lines featured in the pre configuration E Oto2 um Comp L1 umber of compressors featured in the pre configuration line 1 Li Lil Comp type L1 Type of compressors featured in the pre configuration line 1 RECIPROCATING RECIPROCATING SCROLL la04 display only SCREW um Comp L2 umber of compressors featured in the pre configuration line 2 sys 1 12 Comp type L2 Type of compressors featured in the pre configuration line 2 RECIPROCATING RECIPROCATING SCROLL um alarms per comp umber of alarms for compressor featured in the pre configuration 1 4 Oto 4 7 a05 display only Cond Gen Alarm Enable common condenser alarm E z E DIS HP comm pressostat Enable common HP pressure switch E Ss EN DIS LP comm pressostat Enable common LP pressure switch E EN DIS b01 Type of Installation Type of system SUCTION SUCTION CONDENSER CONDENSER SUCTION CONDENSER b02 Measure Units Unit of measure C barg C barg F psig Compressors type Type of compressors line 1 RECIPROCATING RECIPROCATING b03 SCROLL SCREW Compressors number Number of compressors line 1 2 3 1 6 12 b04 Number of alarms for Number of alarms for each compressor line 1 1 O to 4 7 each compressor pRack 0300011EN rel 1 2 04 12 2012 66 CAREL
178. llBooster line 1 Bacdp Eaaa11 Oil pump 1 line 1 Bacdq Eaaal2 Oil pump 2 line 1 Bacdr Eaaa13 Oil fan line Bacdv Ecaa07 Edaa07 Liquid injection valve Economizer compressor 1 line 1 Bacdw Ecaa08 Edaa08 Liquid injection valve Economizer compressor 2 line 1 Liquid injection valve Economizer compressor 3 line 1 Liquid injection valve Economizer compressor 4 line 1 Bacdy Ecaa10 Edaa10 v w Bacdx Ecaa09 Edaa09 y Z Bacdz Ecaa11 Edaa11 Liquid injection valve Economizer compressor 5 line 1 o Se s 5 Bacea Ecaa12 Edaa12 Liquid injection valve Economizer compressor 6 line 1 al Bac Anti liguid return line 1 E Bacei Force from BMS line 1 V Bacek Ebaa01 Subcooling line 1 Eaaal5 Oil cooling pump screw compressor 1 line 1 Eaaal6 Oil cooling fan screw compressor 1 line 1 Faaa18 Oil cooling pump screw compressor 2 line 1 Eaaal9 Oil cooling fan screw compressor 2 line 1 Eaaa40 Oil level valve compressor 1 line 1 Faaa41 Oil level valve compressor 2 line 1 Eaaa42 Oil level valve compressor 3 line 1 Eaaa43 Oil level valve compressor 4 line 1 Eaaa44 Oil level valve compressor 5 line 1 Eaaa45 Oil level valve compressor 6 line 1 Bac73 Cba08 Relay line compressor 1 line 2 Partwinding Star relay compressor 1 line 2 Delta relay compressor 1 line 2 Bac74 Cba09 Valve 1 compressor 1 line 2 Bac75 Cba10 Valve 2 compresso
179. low oil level a valve is activated with intermittent operation to restore the level with opening and closing times that can be set If after a set time the digital input is still active that is the minimum level has not been reached pRack PR100 Signals an alarm and stops the compressor Line oil management pRack PR100 features an alarm digital input for each line this is with Signal only that is has no effect on the operation of the devices For details on this alarm see chapter 8 For all types of compressors a common oil cooler can be managed for each line the operation of this is Similar to the cooler for each individual compressor described previously Note for screw compressors if common cooling is selected cooling for each compressor cannot be activated 6 6 2 Subcooling pRack PR100 can control subcooling in two different ways e with the condensing temperature and the liquid temperature e with the liquid temperature only In the first case subcooling is calculated as the difference between the condensing temperature obtained by converting the condensing pressure and the liquid temperature measured after the exchanger The corresponding output is activated below a set threshold with fixed differential Digital output 1 C F Threshold Tcond Tliq Fig 6 ae In the second case the output is active for liquid temperature values greater than a threshold with fixed differenti
180. lve compressor 9 line 2 Bacbc Cba96 Line relay compressor 10 line 2 Partwinding Star relay compressor 10 line 2 Delta relay compressor 10 line 2 Bacbd Cba97 Valve I compressor 10 line 2 Bacbg Cba98 Balancing valve compressor 10 line 2 Bacbh Cbaaa Line relay compressor 11 line 2 Partwinding Star relay compressor 11 line 2 Delta relay compressor 11 line 2 Bacbi Cbaab Valve I compressor 11 line 2 Bacbl Cbaac Balancing valve compressor 11 line 2 Bacbm Cbaae Line relay compressor 12 line 2 Partwinding Star relay compressor 12 line 2 Delta relay compressor 12 line 2 Bacbn Cbaaf Valve I compressor 12 line 2 Bacbq Cbaag Balancing valve compressor 12 line 2 Baccn Dba20 Fan1 line 2 Bacco Dba21 Fan 2 line 2 Baccp Dba22 Fan 3 line 2 Baccq Dba23 Fan 4 line 2 Baccr Dba24 Fan 5 line 2 Baccs Dba25 Fan 6 line 2 Bacct Dba26 Fan 7 line 2 Baccu Dba27 Fan 8 line 2 4 Baccv Dba28 Fan 9 line 2 5 Baccw Dba29 Fan 10 line 2 LJ Baccx Dba30 Fan 11 line 2 Baccy Dba31 Fan 12 line 2 Baccz Dba32 Fan 13 line 2 Bacda Dba33 Fan 14 line 2 Bacdb Dba34 Fan 15 line 2 Bacdc Dba35 Fan 16 line 2 Bacdd Dba36 Fan inverter line 2 Bacde Eeba03 Heat recovery pump line 2 N Bacdf Egba02 ChillBooster line 2 T Bacds Eaba10 Oil pump 1 line 2 a Bacdt Eaba11 Oil pump 2 line 2 Bacdu Eaba12 Oil fan line 2 Baceb Ecba07 Edba07 Liquid injection valve compressor 1 line 2 Bacec Ebca08 Edba08 Liquid injection valve compressor 2 line 2 a Baced Ecba09 E
181. m digital input scheduler or supervisor is similar for the suction and condensing pressure set points consequently the following description applies to both Two different offsets can be defined which apply to e Closing periods defined by the scheduler activation of a digital input or supervisor Winter period defined by the scheduler The two offsets add to the set point defined by the user when the corresponding condition is active Example 1 closing offset 0 3 barg winter offset 0 2 barg suction pressure compensation from scheduler and from digital input activated When the digital input is activated for example with a day night function 0 3 barg is added to the operating set point and when the winter period is in progress a further 0 2 barg is added The operation can be schematised in the following figure Digital Input ex day night See p Setpoint User setpoint 0 5 barg time Fig 6 y Note the same digital input is used for set point compensation on each line so if suction and condensing pressure set point compensation is activated by digital input both compensation functions are active at the same time Compensation from analogue input only applies to the suction pressure set point and can be enabled separately If compensation from analogue input is enabled a offset that is linearly variable to the value read by a dedicated probe can be applied to the suction pressure set poin
182. matic Settable R2 Shutdown compressor ALCai High oil dilution Digital Scroll line 2 anual automatic Settable R2 Shutdown compressor ALCal High discharge temperature compressors 1 to 6 Automatic 60s R2 Related functions disabled ALCam High discharge temperature compressors 1 to 6 line 2 Automatic 60s R2 Related functions disabled pRack 0300011EN rel 1 2 04 12 2012 80 CAREL Code Description Reset Delay Alarm relay Action AlCan Compressor envelope anua Settable RI Shutdown compressor ALCao High compressor oil temperature line 1 Automatic Settable R2 AlCap High compressor oil temperature line 2 Automatic Settable R2 ALFO1 Fan circuit breaker anual automatic Settable R2 Shutdown fans ALFO2 Fan circuit breaker line 2 anual automatic Settable R2 Shutdown fans ALGO1 Clock error Automatic R2 Related functions disabled ALGO2 Extended memory error Automatic R2 Related functions disabled ALG11 Generic high temperature alarms 1 to 5 PLB1 anual automatic Settable Settable ALG12 Generic high temperature alarms 1 to 5 PLB2 anual automatic Settable Settable e ALG13 Generic high temperature alarms 1 to 5 PLB3 anual automatic Settable Settable ALG14 Generic high temp
183. mizer V d S 5 Liquid injection d v n Heat recovery 3 S V V Generic functions ChillBooster v V DSS d v S Tab 6 a not linked to lines but rather the pLAN address of the boards The functions are described in detail in the following paragraphs 6 1 Unit On Off The unit can be switched on and off from User terminal e Supervisor e Digital input On off from the user terminal and the configuration parameters are available under the main menu branch A c and are differentiated based on the access level the User password allows display only On off from the supervisor and from the digital input and start up after a blackout with specific delay to avoid continuous starts and stops in the event of instability in the power supply must be enabled using the parameters visible only with the Manufacturer password On off from the digital input is equivalent to an enabling Signal that is if the digital input is Off the unit cannot be switched on in any other way while if is On the unit can be switched on or off in any other way with the same priority the most recent control has precedence whatever the origin as shown in the figure Digital Input eee EE Supervisor Fig 6 a When there are two suction and condenser lines on off is independent for each line while when there are two suction lines and one condenser line it is independent for the suction lines while the cond
184. ms display only Stand by Reg type Condenser control type line 2 Neutral Proportional band zone Neutral zone Setpoint Condenser control effective set point with compensation applied line 2 Ma ba ul F1 Power output of fan 1 on line 2 a to the right of the value means that 0 100 Aa53 some form of power override is active display only F8 Power output of fan 8 on line 2 a to the right of the value means that 0 100 some form of power override is active F9 Power output of fan 9 on line 2 a TT to the right of the value means that 0 100 Aa54 some form of power override is active display only F16 Power output of fan 16 on line 2 a to the right of the value means that 0 100 some form of power override is active Aa55 Discharge temperature Discharge temperature line 2 Ee display only External temperature Outside temperature line 2 ME Status curr Effective status of screw compressor 1 with stepped modulation O Stage 2 Start up Stage 3 Stagel Stage 4 Status req Status required for the screw compressor 1 with stepped modulation O Stage 2 Aa60 Start up Stage 3 display only Stage Stage 4 inimum on time Countdown for minimum on time screw comp 1 with stepped modulation S 0 999 in off starts Countdown for minimum off time or wait between successive starts screw S 0 999 comp 1 with stepped modulation Next step Countdown for next step activation
185. n with unit ON line 1 0 16 Fan activation percentage With unit ON line 1 0 100 line separate L2 Suction Suction pressure or temperature line 2 EE screens for each 2 Condens Condensing pressure or temperature line 2 mal line display only L2 Superheat Superheat line 2 um L2 Suct temp Suction temperature line 2 ES L2 Dischtemp Discharge temperature line 2 ME Unit status with unit OFF See values on screen for single line Number of compressors on with unit ON line 2 0 12 Compressor activation percentage with unit ON line 2 0 100 Number of fans on with unit ON line 2 0 16 Fan activation percentage with unit ON line 2 0 100 Hours and minutes Date A L1 Suction Suction pressure or temperature line 1 ls L1 Condens Condensing pressure or temperature line 1 ME L2 Suction Suction pressure or temperature line 2 and Main screen for L2 Condens Condensing pressure or temperature line 2 Gs double suction L1 Suct temp Suction temperature line 1 us line and double L1 Superheat Condensing Superheat line 1 md condenser line L2 Suct temp Suction temperature line 2 P same screen L2 Superheat Superheat line 2 el for both lines L1 Dischtemp Discharge temperature line 1 2 display only L2 Disch temp Discharge temperature line 2 2 i i Unit status with
186. nal cables in he same conduits Do not install the sensor cables in the immediate vicinity of power devices contactors circuit breakers or similar reduce the path of the sensor cables as much as possible and avoid i spiral paths that enclose power devices wire corresponds to the wire that runs to the controller and enters avoid touching or nearly touching the electronic components fitted terminal GO This applies to all the devices connected to the pRack on the boards to avoid electrostatic discharges extremely damaging PR100 from the operator to the components i if the power transformer secondary is earthed check that the earth wire corresponds to the wire that runs to the controller and enters erminal GO this applies to all the devices connected to the pRack PR100 3 3 Connecting the analogue inputs e do not secure the cables to the terminals by pressing the screwdriver The analogue inputs on the pRack PR100 can be configured for the most with excessive force to avoid damaging the pRack PR100 common sensors on the market 0 to 1 V 0 10 V 0 20 mA 4 20 MA for applications subject to considerable vibrations 1 5 mm pk pk The different types of sensors for each input can be selected by setting a 10 55 Hz secure the cables connected to the pRack PR100around 3 parameter on the user terminal cm from the connectors using clamps if the product is installed in industrial environments application of the EN 61000 6 2 s
187. nction 1 DISAB DISABLE ENABLE Low alarm Low alarm delay for generic stage function 1 0 0 C n a Delay time Low alarm delay for generic stage function 1 0 S 0 9999 Alarm type Type of low alarm for generic stage function 1 LIGHT ad LIGHT SERIOUS Efb05 Gen Modulat 1 Enable generic modulating function 1 management DISAB oe DISABLE ENABLE Gen Modulat 2 Enable generic modulating function 2 management DISAB DISABLE ENABLE Efb06 Regulation variable Control variable for generic modulating function 1 oa dies _ Mode Direct or reverse modulation DIRECT sh DIRECT REVERSE Enable Enabling variable for generic modulating function 1 da Efb07 Description Enable description change SKIP vs SKIP CHANGE Description FfbO8 Setpoint Setpoint for generic modulating function 1 0 0 C 1 88 E Differential Differential for generic modulating function 1 0 0 C we EE High alarm High alarm enabling for generic modulating function 1 DISAB Sg DISABLE ENABLE Efb09 High alarm High alarm threshold for generic modulating function 1 0 0 C ies a 7 Delay time High alarm delay for generic modulating function 1 0 S 0 9999 Alarm type Low alarm enabling for generic modulating function 1 LIGHT LIGHT SERIOUS Out upper limit Output upper limit for generic modulating function 1 100 0 0 100 Out lower limit Output lower limit for generic modulating function 1 0 0 0 100 Efb010 Enable cutoff Enable cut off function for generic modulating funct
188. nform to the rated operating crossing each terminal this must not exceed 8 A data of the product the maximum cross section of the cable that connected to a terminal strong vibrations or knocks is 2 5 mm 12 AWG exposure to aggressive and polluting atmospheres e g sulphur and the maximum value of the twisting torque to tighten the screw on the ammonia fumes saline mist smoke so as to avoid corrosion and or terminal torque tightening is 0 6 Nm oxidation strong magnetic and or radio frequency interference therefore avoid Important installing the units near transmitting antennae Installation must be performed according to the standards and exposure of the pRack PR100 to direct sunlight and to the elements legislation in force in the country where the device is used in general for safety reasons the equipment must be housed inside an electrical large and rapid fluctuations in the room temperature panel so that the only accessible part is the display and the keypad environments containing explosives or mixes of flammable gases in the event of malfunctions do not attempt to repair the device but exposure to dust formation of corrosive patina with possible oxidation rather contact the CAREL service centre and reduction of insulation the connector kit also contains the stick on labels Positioning the instrument inside the panel 3 1 3 Anchoring the pRack PR100 The position of the instrument in the electrica
189. ng procedure Minimum OFF time 180 s inimum time between restarts 360 s Alarms pRack PR100 can manage in addition to the common alarms for all types of compressors see chapter 8 for details some specific alarms for Digital Scroll compressors high oil temperature oil dilution high discharge temperature These alarms are managed as specified by the manufacturer of the compressor and therefore pRack PR100 can only enable or disable them Activation of these alarms requires an oil temperature probe which can also be the common probe see the paragraph relating to oil management and the compressor discharge temperature probe Note pRack PR100 does not manages the envelope for Digital Scroll compressors and consequently there is no corresponding alarm when operating outside the envelope 6 3 11 Screw compressors pRack PR100 can manage up to two screw compressors with control in stages or continuous control only the first compressor with continuous control used as modulation device for the suction line which can be a generic device or pre configured in accordance with the most common devices supplied by the main manufacturers Advanced functions are also available for example envelope control described further on The parameters relating to screw compressors can be set in main menu branch C af C bif The parameters relating to screw compressors can be set in main menu branch C af C bf
190. ning date line 1 01 Gen 31 Dic End Summer period end date line 1 01 Gen 31 Dic Faaa03 Day 01 Special day 1 date line 1 01 Gen 31 Dic Faaa04 Day 10 Special day 10 date line 1 ne 01 Gen 31 Dic PI Holiday period P1 beginning date line 1 DEE oe 01 Gen 31 Dic Holiday period P1 end date line 1 01 Gen 31 Dic Faaa05 sk Nr G 9 P5 Holiday period P5 beginning date line 1 Ss 01 Gen 31 Dic Holiday period P5 end date line 1 01 Gen 31 Dic Date format Date format DD MM Y Faab01 DD MM YY M DD YY YY MM DD Faab02 Faab03 Hour Hour and minute Date Date ds Faab04 Day display only Day of the week calculated from current date P onday Sunday Daily saving time Enable daylight saving time DISABLE DISABLE ENABLE Faab05 Transition time Offset time 60 0 to 240 Start Starting week day and month and hour for daylight saving time End End week day and month and hour for daylight saving time Gs FbO1 Language Current language ENGLISH SEN Disable language mask at Disable the change language screen at start up YES NO YES Fb02 start up Countdown Starting value for countdown time change language screen active 60 S 0 60 Main mask selection Main screen selection LINE 1 LINE 1 8 LINE 2 b03 DOUBLE SUCTIO DOUBLE CONDENSER Address Address of the controller in a supervisory system network line 1 196 0 to 207 Protocol Supervisor communication protocol line 1 p
191. ns show their own password level using an icon at the top right 1 line user 2 lines maintenance 3 lines manufacturer The password level can be changed from menu branch F d at any time The password can also be changed in the corresponding menu branch 5 4 Description menu Main menu Function tree The following general rules apply to the user interface The parameters are grouped by functions and where necessary repeated for example the status of the compressors inputs outputs is visible in both branch C a a Compressors and in branch B a Inputs Outputs The parameters are grouped by type of access first User then Maintenance then Manufacturer The most frequently used parameters are indicated first the less frequently used are last e Each user only sees the parameters and menu items that are available for that access level e Only the screens and parameters corresponding to the selected system configuration are visible that is corresponding to the devices configured The exception to this rule involves the screens relating to functions that can be enabled disabled e g set point compensation which are visible even when disabled Regardless of the current screen displayed pressing the Menu button accesses the main menu as shown below 31 pRack 0300011EN rel 1 2 04 12 2012 CAREL a Fa UFiit Status a Main inFO VO E INSOUL a DiBital i bo ANALO EF ci BILAL
192. nt for condensing pressure control proportional control big aA Ab08 with compensation applied line 2 Neutral zone eutral zone for condensing pressure control line 2 ad ig display only Incr diff ncrease differential for the condensing pressure control neutral zone S Le control line 2 Decrdiff Decrease differential for the condensing pressure control neutral zone Ga La control line 2 Ab12 Setpoint Setpoint without compensation suction line 1 3 5 barg sua 9 Ab13 Setpoint Setpoint without compensation condenser line 1 12 0 barg GE Ab14 Setpoint Setpoint without compensation suction line 2 3 5 barg 5 Lc Ab15 Setpoint Setpoint without compensation condenser line 2 12 0 barg DE Status Unit status display only Off from Waiting Off by default keypad Unit On Off by DIN Off from alarm Off from keypad Ac01 Off from Manual op blackout Prevent HP Off from BMS On Off from keypad line 1 OFF OFF ON ET Unit status display only Off from See above Ac01 Ac L2 keypad _ On Off from keypad line 1 OFF OFF ON On Off from keypad line 2 OFF OFF ON pRack 0300011EN rel 1 2 04 12 2012 52 CAREL
193. ntial Differential for proportional control cond line 1 9 wale Z diff eutral zone control differential line 1 oe 09 ica 89 Dab 0 Dab11 Activ diff eutral zone control differential for device activation line 1 sa welt WW Deact diff eutral zone control differential for device deactivation line 1 se 2 ateg Dab12 Dab13 Enforce off power Enable capacity immediate decreasing to 0 line 1 NO NO YES Setp for force off Threshold for capacity decreasing to 0 line 1 mu Kap EE Power load to 100 min inimum time to increase capacity request to 100 Neutral zone 15 5 0 9999 Dab14 ime control condenser line 1 Power load to 100 max aximum time to increase capacity request to 100 Neutral zone 90 S 0 9999 ime control condenser line 1 Power unload to 0 min inimum time to decrease capacity request to 0 Neutral zone control 30 S 0 9999 Dab15 ime condenser line 1 Power unload to 0 max aximum time to decrease capacity request to 0 Neutral zone control 180 S 0 9999 ime condenser line 1 Dado1 Enable condensing Enable setpoint compensation condenser line 1 NO NO YES setpoint compensation Dado Winter offset Enable setpoint compensation condenser line 1 0 0 999 9 999 9 Closing offset Offset applied for Winter period 0 0 999 9 999 9 Dad03 Enable setpoint compen Enable scheduler setpoint compensation condenser line 1 NO NO YES sation by scheduler Activ Time Bands Day of the week MON SUN
194. ntrol neutral zone control line 2 ite a User setp User defined set point for condensing pressure control proportional control ea ia CP Ab05 line 1 Actual setp Effective set point for condensing pressure control proportional control _ Lag Lae display only 8 a with compensation applied line 1 Diff Condensing pressure control differential proportional control line 1 a el User setp User defined set point for condensing pressure control proportional control beg E line 1 Actual setp Effective set point for condensing pressure control proportional control _ DR sa Ab06 with compensation applied line 1 Neutral zone eutral zone for condensing pressure control line 1 bis sn display only Incr diff ncrease differential for the condensing pressure control neutral zone PA wae 9 control line 1 Decr diff Decrease differential for the condensing pressure control neutral zone ba went control line 1 User setp User defined set point for condensing pressure control proportional control sie ME line 2 Ab07 Actual setp Effective set point for condensing pressure control proportional control _ Via EN display only with compensation applied line 2 Diff Condensing pressure control differential proportional control jeg md line 2 User setp User defined set point for condensing pressure control proportional control Gs pA line 2 Actual setp Effective set poi
195. oil sump temperature line 2 in OA display only Gil status Digital ScrollTM compressor oil dilution status line 2 Ok Dilute Status Digital ScrolITM compressor operating status line 2 Kg Off Off by time Start up On by time On Manual mod Aa46 Alarm In pump down display only Countdown Digital Scro T compressor time count line 2 s 0 999 Compr Digital Scro compressor status line 2 OFF ON Valve Digital ScrollTM valve status line 2 OFF ON Reguested cap Digital ScrollTM compressor capacity required line 2 0 100 Current capac Digital ScrolITM compressor effective capacity line 2 0 100 Pressure Condensing pressure line 2 9 Aa50 Sat temp Saturated condensing temperature line 2 MG display only Actsetpoint Effective set point for pressure control with compensation applied line 2 9 sal Differential Control differential for pressure control line 2 kar Seel Pressure Condensing pressure line 2 Seel Aar Sat temp Saturated condensing temperature line 2 ee Act setpoint Effective set point for temperature control with compensation applied line 9 See display only 2 Differential Control differential for temperature control line 2 5 ie bul Actual req Capacity delivered capacity required for condenser line line 2 0 0 100 100 Reg status Control status according to the type of control set line 2 Stop Operating Increase Timings Aa52 Decrease Alar
196. ondenser Compressors Maximum Units present Reference number lines lines L1 L2 number of in pLAN in diagram compressors addition to per line L1 L2 the terminal 1 No suction line one condenser line 0 a 2 No suction line two condenser lines 0 2 a 3 1 suction line scroll or piston compressors no conden 1 0 scroll piston 12 a ser line 4 1 suction line scroll or piston compressors 1 conden 1 scroll piston 12 a ser line 5 1 suction line scroll or piston compressors 1 conden 1 scroll piston 12 1 3 b ser line on a separate board 6 2 suction lines on the same board scroll or piston 2 0 scroll piston 2 c compressors no condenser line scroll piston 7 2 suction lines on the same board scroll or piston 2 scroll piston 2 C compressors 1 condenser line scroll piston 8 2 suction lines on the same board scroll or piston com 2 scroll piston 2 3 e pressors 1 condenser line on a separate board scroll piston 9 2 suction lines scroll or piston compressors 2 conden 2 2 scroll piston 2 f ser lines on the same board scroll piston 0 2 suction lines on the same board scroll or piston com 2 2 scroll piston 2 sa g pressors 2 condenser lines on separate boards scroll piston 1 2 suction lines on separate boards scroll or piston com 2 1 scroll piston 2
197. ons S M L XL Important follow the network polarity RX TX on one board must be connected to RX TX on the other boards the same applies to RX TX The figure shows the diagram for more than one board connected in a pLAN network powered by the same transformer this is a typical application with more than one board connected inside the same electrical panel AWG 20 22 AWG 20 22 Fd Fig 3 q Almportant pLAN connections are also possible with multiple boards powered by different transformers for further details see the pCO Sistema manual code 030220335 3 7 1 Connecting the terminals pRack PR100 features PGD1 terminals both built in and external connected via pLAN Up to two external terminals can be connected with pLAN addresses 31 and 32 The connection can be made using 6 wire telephone cables connector J4 for Compact models or J10 for S M L XL models or shielded pair cables with 3 pin plug in connectors connector J5 for models Compact or J11 for S M L XL models as shown in the table Type of cable _ Power supply distance Power supply 6 wire telephone 10 m Taken from pRack 150 mA J10 AWG24 200 m Taken from pRack 150 mA AWG20 22 500 m Separate from TCONN6J000 Tab 3 0 For further details on connecting the terminals see the pCO sistema manual code 030220335 pRack 0300011EN rel 1 2 04 12 201
198. operations which are required indicated in the user manual may cause the final product to malfunction CAREL accepts no liability in such cases Only qualified personnel may install or carry out technical service on the product The customer must only use the product in the manner described in the documentation relating to the product Warranty on the materials 2 years from the date of production excluding consumables In addition to observing any further warnings described in this manual the following warnings must be heeded for all CAREL products Approval the quality and safety of CAREL INDUSTRIES Has products are Prevent the electronic circuits from getting wet Rain humidity and all guaranteed by the ISO 9001 certified design and production system ypes of liquids or condensate contain corrosive minerals that may damage he electronic circuits In any case the product should be used or stored in environments that comply with the temperature and humidity limits specified in the manual Do not install the device in particularly hot environments Too high emperatures may reduce the life of electronic devices damage them and deform or melt the plastic parts In any case the product should be used WARNING separate as much as possible the probe and digital input signal or stored in environments that comply with the temperature and humidity cables from the cables carrying inductive loads and power cables to avoid imits specifie
199. ored if these have already been saved Given that pRack PR100 following the installation of the Carel default values requires the startup procedure to be repeated select the first pre configuration and then restore the user defaults Note to complete a new configuration procedure as described in Chapter 4 first restore the Carel default values pRack 0300011EN rel 1 2 04 12 2012 CAREL 7 PARAMETERS TABLE Mask index indicates the unique address of each screen and consequently the path needed to reach the parameters available on this screen for example to reach the parameters corresponding to the suction pressure probe with mask index Bab01 proceed as follows T Main men E Im Gut D a StatusDb Analog irua Below is the table of the parameters that can be displayed on the terminal The values indicated with are not Significant or are not set while the values indicated with may vary according to the configuration with the possible options visible on the user terminal A row of means that there are a series of parameters Similar to the previous ones Note Not all the screens and parameters shown in the table are always visible or can be set the screens and parameters that are visible or can be set depend on the configuration and the access level
200. output line 2 Bad05 Eaba13 Oil pump output line 2 Bad10 Dba37 Fan inverter output line 2 Bad11 Eeba04 Heat recovery valve output line 2 Bad13 Efe30 Generic modulating output 2 Eaaa20 Oil cooling pump output screw compressor 2 Tab A f CAREL reserves the right to modify or change its products without prior warning 87 pRack 0300011EN rel 1 2 04 12 2012 CAREL pRack 0300011EN rel 1 2 04 12 2012 88 CAREL Note 89 pRack 0300011EN rel 1 2 04 12 2012 CAREL Note pRack 0300011EN rel 1 2 04 12 2012 90 CAREL CAREL INDUSTRIES Headquarters Via dell Industria 11 35020 Brugine Padova Italy Tel 39 049 9716611 Fax 39 049 9716600 e mail carel carel com www carel com Agenzia Agency pRack 0300011EN rel 1 2 04 12 2012
201. pRack PR100 can manage 3 different compressor manual operating modes Enabling disabling e Manual management Output test Enabling disabling is managed in main menu branch C a f C b f while manual management and the output test can be activated in main menu branch B b or B c Enabling disabling is used to temporarily exclude the compressors from operation to allow for example repair or replacement The disabled compressors are also excluded from rotation Note enabling is the only compressor manual operating mode that can be activated when the unit is on Both manual management and the output test are enabled by parameter and remain active for a set time after the last button is pressed after which the unit returns to normal operating mode Manual management is used to switch the compressors on or off without observing the control needs however still considering any safety devices alarms safety times starting procedures and respecting the set configuration of the inputs outputs The activation screen resembles the one shown in the figure and is used to override the outputs relating to the operation of the selected device e g compressor 1 yE OFF Fig 6 p The output test is used to activate or deactivate the outputs where necessary setting an output percentage for the analogue outputs without observing any type of safety feature The activation screen resembles the one shown in the figure and i
202. pRack pR100 CAREL compressor rack controller xc User manual LEGGI E CONSERVA gt QUESTE ISTRUZIONI 4 READ AND SAVE THESE INSTRUCTIONS zz NO POWER I amp SIGNAL PS CABLES di TOGETHER READ CAREFULLY IN THE TEXT Integrated Control Solutions amp Energy Savings CAREL IMPORTANT DISPOSAL CAREL bases the development of its products on decades of experience in HVAG on the continuous investments in technological innovations to products procedures and strict quality processes with in circuit and functional testing on 100 of its products and on the most innovative production technology available on the market CAREL and its subsidiaries nonetheless cannot guarantee that all he aspects of the product and the software included with the product respond o the requirements of the final application despite the product being developed WEEE cannot be disposed of as municipal waste and such waste must be according to start of the art techniques collected and disposed of separately ae The customer manufacturer developer or installer of the final equipment accepts Wie public or private waste collection systems defined by local legislation must all liability and risk relating to the configuration of the product in order to reach be used In addition the equipment can be returned to the distributor at the he expected results in relation to the specific final installation and or equipment end of its working life
203. ple 1 FIFO rotation 4 compressors of the same capacity without load stages The activation thresholds are 25 50 75 and 100 25 50 75 100 Regulation request Fig 6 h Example 2 Custom rotation 4 compressors with capacities of 10 20 30 and 40 kW The activation thresholds with all the compressors available are 10 30 60 100 10 30 60 100 Regulation request Fig 6 If an alarm is active on compressor 3 the recalculated activation thresholds are 10 30 70 10 30 70 Regulation request Fig 6 Activation of the compressors and load stages may be Grouped CpppCppp first all the load stages are activated on one compressor before starting the next one Balanced CCpppppp first all the compressors are started at minimum capacity and then the corresponding load stages are activated one for each compressor in sequence pRack 0300011EN rel 1 2 04 12 2012 CAREL 6 3 3 Rotation with modulation devices pRack PR100 can also manage compressor rotation when a capacity modulation device is fitted inverter Digital Scroll or continuous control The type of modulating device is selected and the corresponding parameters set during the start up procedure or in main menu branch Caf C bf and C a g C b g The modulating device is always the first to start and the last to stop irrespective of the type of rotation the other devices start or stop according to the type of rotation sele
204. pressors with two different capacities the first two with 4 load stages the other two with 2 load stages 1 size on line 1 2 sizes on line 2 Two lines line 1 with 4 scroll compressors the first Digital Scroll line 2 with 4 reciprocating compressors the first with inverter 1 size line 1 2 sizes line 2 pRack 0300011EN rel 1 2 04 12 2012 6 3 2 Rotation pRack PR100 can manage 4 different types of device rotation FIFO First In First Out the first device to start is also the first to stop LIFO Last In First Out the last device to start is the first to stop By time the device with the least number of operating hours starts and the device with highest number of operating hours stops Custom the on off sequences are defined by the user Nota Different Sizes of compressors can only be managed with Custom rotation The type of rotation is selected and the corresponding parameters set during the start up procedure or in main menu branch Caf Cbf The activation thresholds are calculated differently depending on whether FIFO LIFO time or Custom rotation is used Device activation threshold calculation Rotation Threshold calculation FIFO Static the range of variation of the control request is divided equal LIFO ly between the number of stages available By time Custom Dynamic the thresholds are calculated depending on the capacity effectively available Tab 6 d Exam
205. prevent function is described below 8 3 1 Pressure alarms from pressure switch The parameters corresponding to these alarms can be set in branch G c a G c b of the main menu Low suction pressure from pressure switch The low suction pressure alarm from pressure switch has the effect of stopping all the compressors without observing the various times therefore when the digital input configured as low pressure switch is activated all the compressors on the line affected are stopped immediately This alarm features semiautomatic reset and both the monitoring time and the number of activations in the specified period can be set If the number of activations is higher reset becomes manual In addition the delay after which the alarm is activated on both start up and during operation can be set The delay at start up only applies to unit start up and not compressor power up High condensing pressure from pressure switch The high condensing pressure alarm from pressure switch has the effect of stopping all the compressors without observing the various times and forcing the fans on at maximum speed therefore when the digital input configured as high pressure switch is activated all the compressors on the line affected are stopped immediately and the fans operate at maximum output This alarm features manual or automatic reset as configured by the user The delay after which the alarm is activated can also be set CAREL 8 3 2
206. ption Default UOM Values DO Fan 1 DO position line 1 03 01 29 PA Daa Status display only Status of fan 1 DO line 1 Closed Open Logic Logic of fan 1 DO line 1 NC NC NO Function display only Fan 1 function status line 1 Not active Active AO nverter fan AO position line 1 0 01 06 SEH FCS1 CON FCS1 CONVONOFF Daa38 Type Type of output PWM phase control per AO fan inverters line 1 VONOFF CHRTF FCS3 CONVO10 Status display only nverter fan output value line 1 0 0 0 100 0 Regulation by Condenser control by temperature or pressure line 1 PRESSURE PRESSURE TEMPERATURE Dab01 Regulation type Condenser control type line 1 PROPORTI PROPORTIONAL BAND BAND EUTRAL ZONE Dab02 Minimum Condenser setpoint lower limit line 1 re wan Maximum Condensers setpoint higher limit line 1 Salles Ea Dab03 Setpoint Condenser setpoint line 1 E soa Fans work only when at Enable fan operation linked to compressor operation O O YES Dab04 least one compressor works Cut_Off enable Enable fan cut off function O O YES Dab05 Cut Off request Cut off value 0 0 0 0 100 0 Diff Cut off differential sy 088 els Hysteresis Cut off hysteresis i Ms Reg type Type for proportional control condenser line 1 PROP PROP Dab6 Dab8 PROP INT ntegral time ntegral time for prop control cond line 1 300 S 0 999 Dab7 Dab9 Differe
207. puts Type optically isolated aximum number pRack PR100 S M XL 4 outputs Y1 Y4 0 10 Vdc pRack PR100 L 6 outputs Y1 Y6 0 10 Vdc Power supply external 24 Vac Ndc Precision outputs Y1 Y4 2 of full scale outputs Y5 Y6 2 5 of full scale Resolution 8 bit Settling time outputs Y1 Y4 25 outputs Y5 Y6 250155 selectable via software aximum load 1kQ 10 mA Tab 2 n Digital outputs Important the outputs can be divided into groups depending on the insulation distance The relays belonging to the same group have basic insulation between each other and therefore must have the same power supply 24 Vac or 230 Vac Between groups there is double insulation and consequently these may have different voltages Models PRK100S A PRK100M A PRK100L A PRK100Z A amp PRK100S B PRK100M B PRK100L B PRK100Z B Makeup of the groups Reference for relays with the same insulationisolamento Group 1 Group 2 Group 3 Group 4 Group 5 Group 6 Group 7 pRack PR100 S wal 8 Type of relay Type A Type A pRack PR100 M ve 8 EK Type of relay Type A Type A Type A pRack PR100 L Sri 8 9 13 14 18 Type of relay Type A Type A Type A Type A pRack PR100 XL send 8 9 13 14 16 17 20 21 24 25 29 Type of relay Type A Type A Type A Type B Type B Type B Type B Number of changeover pRack PR100 S none contact
208. r 1 line 2 Bac76 Cba11 Valve 3 compressor 1 line 2 Bac78 Cba12 Balancing valve compressor 1 line 2 Bac79 Cba22 Line relay compressor 2 line 2 Partwinding Star relay compressor 2 line 2 Delta relay compressor 2 line 2 Bac80 Cba23 Valve 1 compressor 2 line 2 Bac81 Cba24 Valve 2 compressor 1 line 2 Bac82 Cba25 Valve 3 compressor 1 line 2 Bac84 Cba26 Balancing valve compressor 1 line 2 Line relay compressor 3 line 2 Partwinding Star relay compressor 3 line 2 Delta relay compressor 3 line 2 Bac87 Cba36 Valve 1 compressor 3 line 2 Bac88 Cba37 Valve 2 compressor 3 line 2 Bac86 Cba35 Line 2 Suction Bac89 Cba38 Valve 3 compressor 3 ine 2 Bac91 Cba39 Balancing valve comp ressor 3 line 2 Bac92 Cba47 Line relay compressor 4 line 2 Partwinding Star relay compressor 4 line 2 Delta relay compressor 4 line 2 Bac94 Cba48 Valve 1 compressor 4 ine 2 Bac95 Cba49 Valve 2 compressor 4 ine 2 Bac96 Cba50 Valve 3 compressor 4 ine 2 Bac98 Cba51 Balancing valve comp ressor 4 line 2 Bacaa Cba60 Line relay compressor 5 line 2 Partwinding Star relay compressor 5 line 2 Delta relay compressor 5 line 2 Bacab Cba61 Valve 1 compressor 5 line 2 Bacac Cba62 Valve 2 compressor 5 line 2 Bacad Cba63 Valve 3 compressor 5 line 2 Bacaf Cba64 B
209. r Compressor 1 delta DO position and status On Off display line 1 01 29 Caa08 relay DO Delta relay DO Compressor 1 line DO position and status On Off display line 1 a 01 29 Logic DO logic to start compressor 1 line 1 NC C NO DO Unloader 1 for compressor 1 DO position line 1 01 29 Caa09 Status display only Status of unloader 1 for compressor 1 DI line 1 SE Closed Open Logic Logic of unloader 1 for compressor 1 DI line 1 NC zm C NO Function display only Unloader 1 for compressor 1 function status line 1 ot active Active AO Compressor modulating device AO position line 1 0 01 06 Caa14 Type best Pl i PWM phase control for compressor modulating device Li m FCS1 CONVONOFF FCS3 CONVO010 Status display only Modulating device output value line 1 0 0 0 100 0 Suction pressure probe position line1 Bl B1 B10 Suct pressure probe type line 1 4 20MA 0 1V 0 10V Caaal 20mA 0 5V display only Suction temperature value line 1 wa Upper value Suct pressure maximum limit line 1 7 0 barg EZ Lower value Suct pressure minimum limit line 1 0 5 barg 9 Calibration Suction pressure probe adjustment line 1 0 0 barg Regulation by Compressor control by temperature or pressure line 1 PRESSURE PRESSURE TEMPERATURE Cab01 Regulation type Compressor control type line 1 NEUTRAL PROPORT
210. r group 1 line 1 YES O YES kW 0 0 500 0 b16 sa Ge es SS S4 Enable size and size for compressor group 4 line 1 NO O YES KW 0 0 500 0 CO1 Size group for compressor 1 line 1 or presence of inverter S1 S1 S4 INV b17 pek Da se C06 Size group for compressor 12 line 1 S1 S4 D20 Compressors sizes Compressors sizes line 1 SAME CAPACITY SAME CAPACITY DEFINE SIZES S1 Enable size and size for compressor group 1 line 1 YES NO YES kW 0 0 500 0 b21 a DEE S4 Enable size and size for compressor group 4 line 1 NO NO YES kW 0 0 500 0 CO1 Size group for compressor 1 line 1 or presence of inverter S1 S1 S4 INV b22 di tab E Er C12 Size group for compressor 6 line 1 S1 S1 S4 Regulation by Compressor control by temperature or pressure line 1 PRESSURE PRESSURE TEMPERATURE Measure unit Unit of measure line 1 barg SEN Refrigerant Type of refrigerant suction Line 1 R404A R22 R134a R404A R407C R410A R507A R290 R600 FS R600a R717 R744 R728 R1270 R417A R422D R413A R422A R423A R407A R427A R245Fa R407F R32 Regulation type Compressor control type line 1 EUTRAL ZONE PROPORTIONAL BAND b41 S i z z PENE Enable integral time Enable integral time for proportional suction line control line 1 O O YES action b42 Setpoint Setpoint without compensation suction line 1 3 5 barg Ju tes Differential Differenti
211. r kit PRK100X0DO pRack PR100 compact without terminal RS485 connector kit PRK1OOSOAO pRack PR100 small without terminal 2 SSR connector kit PRK100SOBO pRack PR100 small without terminal RS485 2 SSR connector kit PRK100SOCO pRack PR100 small without terminal connector kit PRK100S0DO pRack PR100 small without terminal RS485 connector kit PRKTOOMOAO pRack PR100 medium without terminal connector kit 2 SSR PRK100MOBO pRack PR100 medium without terminal RS485 connector kit 2 SSR PRK1TOOLOAO pRack PR100 large without terminal connector kit 4 SSR PRK100LOBO pRack PR100 large without terminal R 485 connector kit 4 SSR PRK100Z0A0 pRack PR100 XL without terminal connector kit 4 SSR PRK100Z0BO pRack PR100 XL without terminal RS485 connector kit 4 SSR Tab 1 e Accessories Code Description PGD1RKOFXO PGD1 user terminal for pRack PR100 CONVO 10A0 Module for converting a PWM output to a liner 0 10 V and 4 20 mA analogue output CONVONOFFO Module for converting a 0 10 V analogue output to an SPDT digital output PCOS004850 RS485 serial connection card CVSTDUTLFO USB RS485 serial converter with telephone connector CVSTDUMORO USB RS485 serial converter with 3 pin terminal PCOSOOAKYO Smart key programming key PCOSOOAKCO PC Smart Key USB converter SOOCONNOO2 Terminal connection cable 0 8 m SOOCONNOOO Terminal connection cable 1 5 m S90CONNOO1 Terminal connection cable l 3 m SPKT R e SPKCOO 0 to 5 Vdc ratiometric pressure
212. r lines Generic functions configurable by the user ON OFF modulation alarms time bands Heat recovery Hardware Compact S M L XL versions Built in or external pGD1 Languages Italian English Note other languages available as standard downloadable from ksa carel com Unit of measure Temperature C F Pressure barg psig all pressure values are also converted to temperature Date format settable between dd mm yy mm dd yy yy mm dd Control Proportional band P Pl available for compressors and fans Neutral zone available for compressors and fans Compressor rotation FIFO LIFO Timed Fixed the on off order can be set as required Scheduling by calendar Scheduling available heating cooling 4 daily time bands 5 special periods e g closing period 10 special days e g holidays Schedulable functions set point compensation for compressors and fans split condenser heating cooling only anti noise heat recovery generic functions Set point Compensation from digital input from scheduling floating based on supervisor parameter compressors or outside temperature fans Prevention High pressure including activation of heat recovery or ChillBooster Alarms Automatic and manual management Configurable compressor alarms Double Signal on digital outputs for high or low priority alarms Log from application Supervisor protocol Carel Modbus Tab 1 a 1 2 Components and accessories pRack PR100 is available in 5 har
213. r screw 60 S 0 9999 Caf25 compressor 1 Limitat on for Time to return to minimum after the compressor was forced to second 0 S 0 9999 stage after staying at minimum for maximum time for screw compres sor 1 Caf26 Min output power inimum compressor capacity in case of high capacity range usually 25 0 100 25 only for continuous compressors Compressor start up Start up phase time after electric start up 0 S 0 999 phase duration Caf27 Maximun time to reach aximum time in order to reach maximum compressor capacity con 120 S 0 999 maximum power inuous capacity control minimum power inimum time in order to reach minimum compressor capacity con 20 0 999 inuous capacity control Intermittent ntermittent on off time for capacity control valves 0 S 0 99 Pulse period Pulsing period for valves for continuous compressors 3 5 15 10 Caf28 Min Puls Incr inimum pulse time for increase capacity valves control 0 5 S 0 0 9 9 Max Puls Incr aximum pulse time for increase capacity valves control 0 s 0 0 9 9 Min Puls Decr inimum pulse time for decrease capacity valves control 0 5 s 0 0 9 9 Max Puls Decr aximum pulse time for decrease capacity valves control 0 S 0 0 9 9 Valve conf Configuration of the behaviour of the valves during start stop incr O ON Caf29 min to 100 decr 100 to min standby decr 100 to 50 X OFF I Intermittent P Pulsing Number of valves umber of control capacity valves for screw comp
214. r supply 24 Vac 10 15 50 60 Hz at least 30 VA for each board and 48 Vdc 36 Vmin 72 Vmax Maximum current P 11 W P 14 VA Imax 700 MA Terminal block with male female plug in connectors 250 Vac max 8 A max Cable cross section min 0 5 mm max 2 5 mm CPU H8SX 1651 32 bit 50 MHz Program memory FLASH 242 MByte Data memory SRAM 512 Kbyte at 16 bit Parameter data memory EEPROM 13 Kbyte 32 Kbyte NAND FLASH memory 32 MByte Working cycle duration 0 5 s application of average complexity Clock with battery Available as standard and integrated into main board Battery Lithium button battery code CR2430 voltage 3 Vdc dimensions 24x3 mm Tab 2 9 2 14 Mechanical specifications of the pRack PR100 Compact board Physical dimensions 6 DIN modules 105x110x60 mm Plastic case Assembly Fitted on DIN rail as per DIN 43880 and IEC EN 50022 Material technopolymer Flame retardance V2 UL94 and 960 C IEC 695 Ball pressure test 125 C Resistance to creeping current gt 250V Colour Grey RAL7016 Tab 2 h pRack 0300011EN rel 1 2 04 12 2012 12 CAREL 2 1 5 Other specifications of the pRack PR100 Compact board Operating conditions 10T60 C 90 RH non condensing Storage conditions 20T70 C 90 RH non condensing ndex of protection IP20 IP40 on the front panel only Env
215. rd option Tab 2 CAREL 2 2 1 Meaning of the inputs outputs on the pRack PR100 S M L XL boards Version Connector Signal Description J1 1 G 24 Vdc or 24 Vac power supply J1 2 GO power supply reference J2 1 BI universal analogue input 1 NTC 0 to 1 V 0 to 5 V ratiometric 0 10 V 0 20 mA 4 20 mA J2 2 B2 universal analogue input 2 NTC 0 to 1 V 0 to 5 V ratiometric 0 10 V 0 20 mA 4 20 mA J2 3 B3 universal analogue input 3 NTC 0 to 1 V 0 to 5 V ratiometric 0 10 V 0 20 mA 4 20 mA J2 4 GND common for analogue inputs J2 5 VDC 21 Vdc power supply for active probes maximum current 200 mA J3 1 B4 passive analogue input 4 NTC PT1000 ON OFF J3 2 BC4 common for analogue input 4 J3 3 BS passive analogue input 5 NTC PT1000 ON OFF J3 4 BC5 common for analogue input 5 J4 1 VG power to optically isolated analogue output 24 Vac Vdc S M L XL J4 2 VGO power to optically isolated analogue output 0 Vac Vdc 54 3 Y1 analogue output no 1 0 10V J4 4 Y2 analogue output no 2 0 10 V J4 5 Y3 analogue output no 3 0 10 V J4 6 Y4 analogue output no 4 0 10 V J5 1 D1 digital input
216. re available In addition pRack PR100 can be connected to the pRack Manager commissioning software 9 1 PlantVisor PRO and PlantWatch PRO supervisory systems Connection to Carel PlantVisor PRO and PlantWatch PRO supervisor systems uses the RS485 card already fitted on some models of pRack PR100 For details on the models of card available see Chapter 1 Note In general the pRack boards that manage the suction lines must be fitted with the supervisor connection card consequently boards with pLAN address 1 or 2 Three different models of PlantVisor PRO and PlantWatch PRO are available used to supervise system configurations with one or two lines L1 one line can be used for system configurations with just one suction and or condenser line L2 one line can be used for system configurations with two suction and or condenser lines and the two suction lines are managed by separate boards Two lines can be used for system configurations with two suction and or condenser lines and the two suction lines are managed by the same board Important model L2 One line must be used only in association with model L1 One line For supervision of system configurations with just one line only model L1 One line can be used Tutorial the rule applied for using the models is summarised below cconfiguration with board with pLAN address 2 gt separate models configuration without board with pLAN address 2 gt one
217. re described below Digital outputs pRack PR100 assigns in order Compressor outputs first the SSR outputs for screw or Digital Scroll then the starting outputs the capacity control valves and the inverter if present e Fan outputs e Global alarm Digital inputs pRack PR100 assigns in order High and low pressure switches HP and LP Compressor alarms e Fan alarms Note pRack PR100 can also use certain analogue inputs as digital inputs nonetheless the common HP and LP pressure switches are always associated with actual digital inputs Analogue inputs pRack PR100 assigns in order Pressure or temperature control probes for 1 or 2 lines according to the settings made The types of probe asSigned as default are 4 20 mA or 0 to 5 V first 4 20 mA then 0 to 5 V if necessary for the pressure probes NTC for the suction temperature probes and HTNTC for the condensing temperature probes Suction temperature probe on line 1 if possible this is associated with input B3 otherwise the first free input Discharge temperature probe on line 1 Suction temperature probe on line 2 Discharge temperature probe on line 2 Analogue outputs pRack PR100 assigns in order Compressor inverters for 1 or 2 lines e Fan modulating devices for 1 or 2 lines 29 Note for pRack pR100 Compact analogue output 1 is PWM phase control and therefore based on the type of modulating devices selected pRack
218. relay no 16 17 18 J22 2 016 normally open contact relay no 16 J22 3 O17 normally open contact relay no 17 J22 4 O18 normally open contact relay no 18 J22 5 C16 common for relay no 16 17 18 J23 E E terminal for RS485 connection to the I O expansion modules not used J23 2 E E terminal for RS485 connection to the I O expansion modules not used J23 3 GND GND terminal for RS485 connection to the I O expansion modules not used J19 C21 common for relay no 21 22 23 24 J19 2 021 normally open contact relay no 21 J19 3 022 normally open contact relay no 22 J19 4 023 normally open contact relay no 23 J19 5 024 normally open contact relay no 24 J19 6 C21 common for relay no 21 22 23 24 J20 C25 common for relay no 25 26 27 28 29 J20 2 025 normally open contact relay no 25 J20 3 026 normally open contact relay no 26 J20 4 O27 normally open contact relay no 27 J20 5 028 normally open contact relay no 28 XL J20 6 029 normally open contact relay no 29 J20 7 C25 common for relay no 25 26 27 28 29 J21 C14 common for relay no 14 15 16 J21 2 014 normally open contact relay no 14 J21 3 015 normally open contact relay no 15 J21 4 016 normally open contact relay no 16 J21 5 C14 common for relay no 14 15 16 J22 C17 common for relay no 17 18 19 20 J22 2 O17 normally open contact relay no 17 J22 3 018 normally open contact relay no 18 J22 4 019 normally open contact relay no 19 J2
219. ressor 2 3 1 4 Caf36 Stages configuration Stage configuration for screw compressor 2 25 50 100 50 100 50 75 100 75 100 25 50 75 100 33 66 100 Different sizes Enable compressors of different sizes line 1 O O YES Caf90 Different number of Enable compressor capacity control line 1 O O YES valves S1 Enable size and size for compressor group 1 line YES O YES 10 0 kW 0 0 500 0 Cafo1 S4 Enable size and size for compressor group 4 line O E O YES KW 0 0 500 0 S1 Enable stages and stages for compressor group 1 line 1 YES O YES 100 100 50 100 50 75 100 Caf92 25 50 75 100 33 66 100 S4 Enable stages and stages for compressor group 4 line 1 O sa O YES kW S1 54 CO1 Size group for compressor 1 line 1 or presence of inverter S1 S1 S4 INV Caf93 Ka E Ge D C12 Size group for compressor 6 line 1 S1 S1 S4 57 pRack 030001 1EN rel 1 2 04 12 2012 CAREL Mask index Display description Description Default UOM Values in on time Minimum Digital Scroll compressor On time line 1 60 s 0 999 in off time Minimum Digital Scroll compressor Off time line 1 180 s 0 999 Cafos in time to start same Minimum time between starts for Digital Scroll compressor line 1 360 s 0 999 compressor Reactivate start up proce Digital Scroll compressor start up procedure reactivation time line 1 480 min
220. rmation costs of replacement particular regarding the practical use of the various goods or services damage to things or people downtime or any direct indirect O functions of the product incidental actual punitive exemplary special or consequential damage of an EER 9 e y IMPORTANT to bring critical issues regarding the use of the kind whatsoever whether contractual extra contractual or due to negligence or Rack PRTOOTOth fth any other liabilities deriving from the installation use or impossibility to use the phac to the attention of the user product even if CAREL or its subsidiaries are warned of the possibility of such TUTORIAL some simple examples to accompany the user in damage configuring the most common settings 3 pRack 0300011EN rel 1 2 04 12 2012 CAREL Content 1 INTRODUCTION 7 tr M neder 7 12 COMPONENTS and accessories sssrssersrsssersssserssssrrsssersssssssssersesssrssseseenses 7 1 3 System configurations and input and output configuration 9 2 HARDWARE FEATURES AND INSTALLATION 10 2 1 Description of the pRack PR100 Compact 10 2 2 Description of the pRack PR100 S M L XL boards 14 2 3 pRACK pR100 board general connection diagram 20 3 INSTALLATION 22 3 1 General installation instructions 3 2 Power supply 3 3 Connecting the analogue inputs 3 4 Connecting t
221. roll 2 12 1 2 3 4 i pressors on line 1 and scroll or piston compressors on piston line 2 2 condenser lines on separate boards 22 2 suction lines on separate boards scroll or piston com 2 2 scroll piston 2 12 1 2 3 4 pressors 2 condenser lines line 1 on separate board scroll piston line 2 on board in common with suction Tab A a pRack 0300011EN rel 1 2 04 12 2012 CAREL The system configurations available refer to the following diagrams d 2suction lines on separate boards up to 2 screw compressors on line 1 and scroll or piston compressors on line 2 1 condenser line on a a upto suction line scroll or piston compressors and upto I condenser separate board line on just one pRack PR100 board Board with Board with pLAN pLAN ad address 1 dress 3 N N di gd gl ig 2 2 Fig A a Board with Board with b 1 suction line scroll or piston compressors and 1 condenser line on a PLAN PLAN ad address 1 dress 2 separate board Board with pLAN ad dress 3 Fig A d e 2 suction lines on the same board scroll or piston compressors 1 condenser line on a separate board pLAN Board with pLAN ad dress 1
222. s pRack PR100 M L XL 2 outputs 8 amp 13 J15 amp J18 Relay Type Relay ratings SPDT 2000 VA 250 Vac 8 A resistive Approval UL873 2 5 A resistive 2 A FLA 12 A LRA 250 Vac C300 pilot duty 30 000 cycles Switchable power EN 60730 1 2 A resistive 2 A inductive cosp 0 6 2 2 A 100 000 cycles Relay Type B Relay ratings SPDT 1250 VA 250 Vac 5 A resistive A UL873 2 5 A resistive 2 A FLA 12 ALRA 250 Vac C300 pilot duty 30 000 cycles pprova EN 60730 1 2 A resistive 2 A inductive cosj 0 6 2 2 A 100 000 cycles Number of SSR outputs pRack PR100 S 2 outputs 7 e 8 pRack PR100 M 2 outputs 7 e 12 pRack PR100 L XL 4 outputs 7 12 14e 15 SSR contact specifications Operating voltage 24 Vac Vdc Maximum power 10 W Tab 2 0 17 pRack 0300011EN rel 1 2 04 12 2012 CAREL Models PRK100S C PRK100M C PRK100L C PRK100Z C amp PRK100S D PRK100M D PRK100L D PRK100Z D Makeup of the groups References for relays with the same insulation Group 1 Group 2 Group 3 Group 4 Group 5 Group 6 Group 7 pRack PR100 S al 8 Type di Relay Type A Type A pRack PR100 M ni 8 9 13 Type di Relay Type A TypeA Type A pRack PR100 L vi 8 9 13 14 18 Type di Relay Type A Type A IypeA Type A pRack PR100 XL ss 8 9 13 14 16 17 20 21 24 25 29 Type di Relay Type A Type A Type A Type B Type
223. s used to override the outputs on the pRack boards in the order they physically appear on the board without links to the devices Dai Gs tal OUTPUT afd Ea HE OFF paz EE OFF Fig 6 q Important manual mode and the output test can only be activated with the unit off Both manual mode and above all the output test must be used with special care and by expert personnel to avoid damage to the devices pRack 0300011EN rel 1 2 04 12 2012 CAREL 6 3 10 Digital Scroll compressors pRack PR100 can use a Digital Scroll compressora as the modulating device for suction lines one for each line This type of compressor features special operation and is controlled by pRack PR100 as follows The related parameters can be set in main menu branch Caf Cbf The capacity is modulated by opening closing a valve with PWM when the valve is ON the compressor delivers minimum capacity while when the valve is off the compressor delivers maximum capacity In the following description and figure ON and OFF refer to the status of the compressor while operation of the valve is the exact opposite Compressor power request Compressor PWM 10 67 modulation Fixed cycle time Fig 6 r The following data are provided by the manufacturer of the compressor e minimum ON time 2 s maximum cycle time 20 s optimum cycle time 12 s There are three possible operating modes e Fixed cycle time Variable cycl
224. s with custom rotation condenser line 1 1 1 16 Daf09 Daf10 Switch OFF order odulate speed device Fan driver type line 1 NONE NONE INVETER Dag01 PHASE CONTROL Type fren e PWM phase control for condenser modulating device _ MERE FCS3 CONVO10 eutral zone reg Fan control also inside Neutral zone line 1 NO NO YES in out value Minimum voltage for compressor inverter line 1 0 0 V 0 0 to 9 9 Dag02 ax out value Maximum voltage for compressor inverter line 1 10 0 V 0 0 to 99 9 in power refer Minimum capacity of fan modulating device line 1 60 0 100 ax power refer Maximum capacity of fan modulating device line 1 100 0 999 Rising time Time to pass from min capacity to max capacity for fan modulating 1200 0 to 32000 device line 1 Dag03 Falling time Time to pass from max capacity to min capacity for fan modulating 1200 s 0 to 32000 device line 1 Num control fans Number of fans under inverter only for alarm enabling 1 Oto 16 Split Condenser Enable split condenser line 1 NO NO YES Controlled by Split Condenser controlled by digital input line 1 SS es NO YES Dag04 Digital input External temp Split Condenser controlled by outside temperature line 1 NO YES Scheduler Split Condenser controlled by scheduler line 1 NO YES Est Temp Thr Split condenser by outside temperature management setpoint 10 0 C 99 9 99 9 Dag05 line 1 Est Temp Diff Split condenser by outside tempera
225. screw comp 1 with stepped modulation s 0 999 Status Effective status of screw compressor 1 with continuous capacity Off Shut down modulation Start up Norm ope Aa61 rating display only Shut down countd Screw comp 1 off time with continuous capacity modulation s 0 999 Max pow countdown Countdown for minimum off time or wait between successive starts screw S 0 999 comp 1 with continuous capacity modulation Min on countdown Countdown to start screw comp 1 with continuous capacity modulation S 0 999 pRack 0300011EN rel 1 2 04 12 2012 50 CAREL Mask index Display description Description Default UOM Values Status curr Effective status of screw compressor 2 O Stage 2 Start up Stage 3 Stage1 Stage 4 Status req Status required for the screw compressor 2 Off Stage 2 Aa62 Start up Stage 3 display only Stage1 Stage 4 Minimum on time Countdown for minimum on time screw comp 2 s 0 999 Min off starts Countdown for minim off time or wait between successive starts screw S 0 999 comp 2 Next step Countdown for next step acti
226. sed to vary the request sent by the controller inside the Neutral zone proportionally so as to enter the decrease zone with the minimum request and the increase zone with the maximum request meaning a device can be immediately deactivated activated when exiting the Neutral zone This makes it possible to remain longer inside the neutral zone without starting or stopping any device An example of this operation is shown in the figure Regulation request Neutral zone 100 Regulation probe value Fig 6 g When entering the Neutral zone the pRack PR100 software calculates how the request needs to change in order to exit the Neutral zone at minimum or maximum output and applies one of the two values according to the trend in variation in the control variable For example at point P1 in the figure the trend of the two requests is represented by the segments with thin lines and the request reverses because at that point the control variable has started increasing in value again Note When exiting the Neutral zone it is possible that the request is not at the minimum or maximum value where limitation is enabled for of the modulating device variation speed 6 2 4 Control with backup probes and or probes not working pRack PR100 can use backup control probes that are activated when the normal control probes are not working The backup probes must be enabled in main menu branch C a g C b g or D a g D b g
227. shown in the figure for direct mode with the cut off function also enabled Direct modulation MAX MIN Cut off Value Setpoint Regulation variable Differential Fig 6 ak If an enabling variable has been set the corresponding output is active if the enabling is also active For each modulation a high alarm threshold and a low alarm threshold can be set and are absolute For each alarm the activation delay and priority can be set See chapter 8 for details on the alarms 45 For modulation a minimum and maximum value can also be set for the output and the cut off function can be enabled with operation as shown in the previous figure Alarms pRack PR100 can manage up to 2 alarm functions with settable digital variable to be monitored activation delay priority and description Each generic function can be associated with a digital output for the activation of external devices when the alarm is activated One example of using the generic alarm functions involves detecting gas eaks Scheduler pRack PR100 can manager a generic scheduler that activates a digital output at certain time bands Up to 4 daily time bands can be set for each day of the week in addition operation of the generic scheduler can be linked to the common scheduler and consequently the output activated based on e summer winter upto 5 closing periods e up to 10 special days See paragraph 6 7 2 for details on the time bands
228. sor 6 line 2 ALC93 Alarm 7 compressor 6 line 2 anual automatic Settable Settable Shutdown compressor 6 line 2 ALC94 Alarm 1 compressor 7 line 2 anual automatic Settable Settable Shutdown compressor 7 line 2 ALC95 Alarm 2 compressor 7 line 2 anual automatic Settable Settable Shutdown compressor 7 line 2 ALC96 Alarm 1 compressor 8 line 2 anual automatic Settable Settable Shutdown compressor 8 line 2 ALC97 Alarm 2 compressor 8 line 2 anual automatic Settable Settable Shutdown compressor 8 line 2 ALC98 Alarm 1 compressor 9 line 2 anual automatic Settable Settable Shutdown compressor 9 line 2 ALC99 Alarm 2 compressor 9 line 2 anual automatic Settable Settable Shutdown compressor 9 line 2 ALCaa Alarm 1 compressor 10 line 2 anual automatic Settable Settable Shutdown compressor 10 line 2 ALCab Alarm 1 compressor 11 line 2 Manual automatic Settable Settable Shutdown compressor 11 line 2 ALCac Alarm 1 compressor 12 line 2 anual automatic Settable Settable Shutdown compressor 12 line 2 ALCad High oil sump temperature Digital Scroll anual automatic Settable R2 Shutdown compressor ALCae High discharge temperature Digital Scroll anual automatic Settable R2 Shutdown compressor ALCaf High oil dilution Digital Scroll anual automatic Settable R2 Shutdown compressor ALCag High oil sump temperature Digital Scroll line 2 anual automatic Settable R2 Shutdown compressor ALCah High discharge temperature Digital Scroll line 2 anual auto
229. sponding instruction sheet For details on the SmartKey Programmer see the online manual 73 10 3 Saving parameters between different software versions The configuration parameters can be saved and loaded after having updated the software The update requires the files relating to the new version being loaded files with the following extensions Jup blx blb grt dev and the connection files files with the following extensions 2cf 2ct 2cd for the installed version and the new version The connection files must be copied to the 2cf directory under pRack Manager for example C Program Files CAREL pRackManager 2cf The update procedure including saving the parameters is as follows for details on the functions of the pRack Manager software see the online manual 1 Switch the unit off from the user terminal or supervisor or digital input 2 Connectthe PCwhere pRack Manageris installed using the pLAN serial disconnect the terminal if necessary and disconnect any BMS connections 3 Start the pRack Manager software 4 In the Connection settings panel set Baud rate to Auto and SearchDevice to Auto pLAN and select the COM port under PortNumber if necessary use the Wizard to detect the correct COM 5 InCommissioning Settings select the 2cffile relating to the version on pRack PR100 e g 1 0 6 PowerdownpRackPR100 power up again and wait forthe controllerto come On line 7 In Device Configuration read all th
230. supply 5 V ratiometric probes VDC 21 Vdc for power to active probes digital input 3 24 Vac Vdc SSR or SPDT digital output based on the model 4 _ connector for pGD1 terminal and for downloading the application program 5 pLAN network connector 6 connector for pLD terminals not used 7 8 tLAN network connector not used optically isolated Field bus serial connector 9 Oto 10V analogue and PWM phase control outputs 10 24 Vac Vdc SSR or SPDT digital output based on the model 11_ SPST relay digital outputs 12_ NTC analogue inputs and digital input 13 cover for inserting supervisor and telemaintenance option or BMS serial connector available on models PRK100 B amp PRK100 D J3 ssp 2av Fig 2 a 2 1 1 Meaning of the inputs outputs on the pRack PR100 Compact board Connettore Segnale Description J1 1 G 24 Vac or 36 72 Vdc power supply J1 2 GO power supply reference J2 1 SYNC synchronicity input for phase control GO is the reference J2 2 B1 universal analogue input 1 NTC 0 to 1 V 0 to 5 V ratiometric 0 10V 0 20 mA 4 20 mA J23 B2 universal analogue input 2 NTC 0 to 1 V 0 to 5 V ratiometric 0 10 V 0 20 mA 4 20 mA
231. t as shown in the figure pRack 0300011EN rel 1 2 04 12 2012 CAREL Offset max Offset min Probe value Lower value Upper value Fig 6 2 6 5 2 Floating suction pressure set point For the suction line the floating set point is managed by the supervisor The suction pressure set point set by the user is changed by the supervisor in range between a settable minimum and maximum The operation is illustrated in the following figure Floating setpoint time Sampling time gt Fig 6 aa The set point is calculated by the supervisor and acquired by the pRack PR100 controller at set intervals the maximum variation allowed for the set point in each sampling period can also be set if the value acquired differs from the previous value by more than the maximum variation allowed the variation is limited to the maximum value f the supervisor is disconnected after 10 minutes fixed the pRack PR100 controller starts decreasing the set point with variations equal to the maximum variation allowed each sampling period until reaching the minimum set point allowed with floating suction pressure Note if set point compensation from scheduler digital input or supervisor is also active the offset is added to the minimum and maximum limits for the floating set point CAREL 6 5 3 Floating condensing pressure set point For the condenser line the floating set point is based on the outside temperat
232. tandard the length of the connections must be less han 30 m a yellow LED indicates that power is connected to the pRack PR100 pRack 0300011EN rel 1 2 04 12 2012 22 CAREL 3 3 1 Connecting universal NTC temperature sensors 3 3 3 Connecting current pressure probes The analogue inputs are compatible with 2 wire NTC sensors The inputs must be set for NTC Signals from the user terminal or using the default value installation procedure The connection diagram is shown below pRack PR100 can be connected to all CAREL SPK series active pressure probes or any other pressure sensors available on the market with 0 20 mA or 4 20 mA Signal The inputs must be set for 0 20 mA or 4 20 mA Signals from the user terminal or using the default value installation procedure The connection diagram is shown below IWON Compressor Rac field card ml Fig 3 a Hardware Version Terminals NTC probe cable Compact GND Fig 3 c B1 B2 B3 B4 B5 B6 B7 B8 2 Hardware Terminals Probe wire Description 5 GND BC4 BC5 Version B1 B2 B3 B4 B5 2 S colour M XL GND BC4 BC5 Compact VDC brown power supply B1 B2 B3 B4 BS B6 B7 B8 2 B1 B2 B5 B6 white Signal G GND BC4 BC5 BC9 BC10 S M L XL VDC brown power supply B1 B2 B3 B4
233. trol set point for the generic stage function 5 wes besk display only Differentia Control differential for the generic stage function 5 gr EES Mode Control mode for the generic stage function 5 direct or reverse DR Status Status of generic stage function 5 E on ot active Active Reg variable Control variable value for generic modulating function 1 Sr D tech Enable Enabling variable status for generic modulating function 1 ot active Active Aaas Setpoint Control set point for generic modulating function 1 n si display only Differentia Control differential for generic modulating function D ml Mode Control mode for generic modulating function 1 direct or reverse DR Status Status of generic modulating function 1 0 0 100 0 Reg variable Control variable value for generic modulating function 2 SA WR el Enable Enabling variable status for generic modulating function 2 Not active Active Aaat Setpoint Control set point for generic modulating function 2 sd sad display only Differentia Control differential for generic modulating function 2 CE se Mode Control mode for generic modulating function 2 direct or reverse DR Status Status of generic modulating function 2 0 0 100 0 Reg variable Control variable status for generic alarm function 1 ot active Active A Enable Enabling variable status for generic alarm function 1 ot active Active aau gt E Type
234. ts to be configured as voltage free digital inputs not optically isolated The inputs must be pre configured as voltage free digital inputs from the user terminal or using the default value installation procedure field card Fig 3 f Hardware Version Terminals Digital input cable Compact GND 1 B5 BS 2 S M XL BC4 BC5 1 B4 B5 2 S M L XL BC4 BC5 BC9 BC10 1 B4 B5 B9 B10 2 Tab 3 g Important the maximum current available at the digital input is 5 mA thus the rating of the external contact must be at least 5 mA A Important these inputs are not optically isolated pRack 0300011EN rel 1 2 04 12 2012 NTC 0 5 1 0 PT1000 0 75 1 5 current 0 25 0 5 voltage 0 25 0 5 Tab 3 h 3 4 Connecting the digital inputs The pRack PR100 features digital inputs for connecting safety devices alarms device status and remote switches These inputs are all optically isolated from the other terminals They can work at 24 Vac 24 Vdc and some at 230 Vac Note separate the sensor Signal and digital input cables as much as possible from the inductive load and power cables to avoid possible electromagnetic disturbance iN Important if the control voltage is drawn in parallel with a coil fit a dedicated RC filter in parallel with the coil the typical ratings are 100 Q 0 5 uF 630 V If connecting the digital inputs to safety syst
235. ture management differential line 2 5 C 99 9 99 9 1 Type Fans enabled with split condenser line 1 CUSTOM CUSTOM ODD EVEN Dag06 GREATER THAN LESS THAN Only when enabling type is GREATER THAN or LESS THAN number of 0 Oto 16 fans to consider for splitting line 1 Disable split condenser as Disable split condenser when high condensing pressure prevent occurs NO NO YES Dag09 first stage of HP pressostat line 1 for Duration of split condenser deactivation for high condensing 0 h 0 to 24 pressure prevent line 1 Anti noise Enable silencer line 1 DISAB DISABLE ENABLE Max output Maximum request allowed when silencer function is active line 1 75 0 0 0 100 0 Dag10 Controlled by Silencer controlled by digital input condenser line 1 NO NO YES Digital input Scheduler Silencer controlled by scheduler condenser line 1 NO NO YES Activ Time Bands Day of the week MON SUN TB1 gt Time band 1 enabling and definition start hour and minute end hour and minute condenser line 1 TB4 gt Time band 4 enabling and definition start hour and minute end hour Dag12 and minute condenser line 1 Changes Time band changes action CONFIRM amp SAVE LOAD PREVIOUS CLEAR ALL Copy to Copy settings to other days 0 MONDAY SUNDAY MON FRI MON SAT SAT amp SUN ALL DAYS Speed Up Enable speed up condenser line 1 YES NO YES Speed Up time Speed up time condenser l
236. ual management e Output test Enabling is managed in main menu branch Daf Dbf while manual management and the output test can be activated in main menu branch B b or B c For the detailed description of the three modes see paragraph 6 3 9 6 4 7 Alarms pRack PR100 can manage both a common alarm for the fans and separate alarms for each fan When the common alarm is active the alarm is signalled but no fan is stopped while for separate alarms the fan that the alarm refers to is stopped For details on the fan alarms see Chapter 8 pRack 0300011EN rel 1 2 04 12 2012 6 5 Energy saving pRack PR100 can activate energy saving functions by adjusting the suction and condensing pressure set points The suction and condensing pressure set points can be applied with two different offsets one for the closing period and one for the winter period activated by Digital input e Time band e Supervisor In addition the suction pressure set point can be modified from analogue input applying a linearly variable offset based on the value read by a probe As well as set point compensation from digital input scheduler supervisor or analogue input two further energy saving functions are available floating suction and condensing pressure set point The functions can be enabled and the related parameters set in main menu branch C a d C b d and D a d D b d 6 5 1 Set point compensation Compensation fro
237. um on time Minimum off time Minimum time between consecutive starts 20 Regulation request Rn ng Step compressors capacity em am inverter capacity am Total capacity Dr In addition pRack PR100 can manage the specific times for Digital Scroll Fia 6 compressors and screw compressors for the descriptions see paragraphs si 63 10 and 63 11 fa Esempio 3 range of modulating device capacity variation in The related parameters can be set in main menu branch C af C bf between the capacity of the compressors all different sizes two compressors without capacity control capacities 15 kW and 25 kW modulating device with variable capacity between 10 and 30 kW Note for two lines a further delay can be set between starts of the compressors on different lines so as to avoid Simultaneous starts See paragraph 6 6 6 for the detailed description of the synchronisation Actual capacity kW function for two lines DSS 6 3 6 Balancing pRack PR100 can control any balance valves in parallel with the compressors This function can be used to activate a communicating solenoid valve between compressor suction and discharge for a set time before each individual compressor starts In this way the suction and discharge pressure can be balanced and the compressor can be started in more favourable conditions The balancing function can be enabled and the related activation time set in main menu
238. ure The floating condensing pressure set point is achieved by adding a constant programmable value to the outside temperature and limiting the resulting value between a settable minimum and maximum as shown in the figure Floating setpoint time external temperature Fig 6 ab Note if set point compensation from scheduler digital input or supervisor is also active the offset is added to the minimum and maximum limits for the floating set point 6 6 Accessory functions pRack PR100 can manage several accessory functions Of these the economizer and liquid injection have already been described in paragraph 6 3 on compressor operation while the others are described below 6 6 1 Oil management pRack PR100 features oil management for the individual compressors as well as common management for each line Individual compressor oil alarm high oil temperature and for screw compressors only oil warning oil cooling and oil level Line common oil alarm high oil temperature warning oil cooling The function can be enabled and the related parameters set in main menu branch E a a E a b or Cae Cbe for the individual compressor alarms Individual compressor oil management For the description of the oil alarm and warning corresponding to the individual compressor see Chapter 8 For screw compressors an oil cooler can be managed for each compressor made up of a heat exchanger a fan and 1 or 2 pumps The oper
239. vation screw comp 2 S 0 999 Zone Envelope zone for screw compressor 1 0 14 Aa70 Max admit time Maximum duration allowed in the zone min 0 999 display only Countdown Countdown s 0 32000 Max admit power Maximum capacity allowed in the zone 0 100 Startup status Start up status for screw compressor 1 s Off Compressor on Aa71 Intermediate interval display only Final interval Compressor off RestartAlarm N startup restart Number of restarts 0 99 Err code Type of error in envelope definition _ o error Env def inconsist Al code Type of alarm activated o Alarm Aa72 ax time elapsed display only Zone not allowed ax no of restarts Envel def error code Type of error in selection of predefined envelope o error Comp not supported Gas type not allowed Reg var Control variable value for generic stage function 1 SS an Enable Enabling variable status for generic stage function 1 jot active Aaan active EET Setpoint Control set point for generic stage function 1 S E ee Pidy Sny Differential Control differential for generic stage function 1 bes AE Mode Control mode for generic stage function 1 direct or reverse DR Status Status of generic stage function 1 ot active Active Reg var Control variable value for the generic stage function 5 SC TE Enable Enabling variable status for the generic stage function 5 ot active Active Aaar Setpoint Con
240. ve of fans active Superheat CAREL Subcooling Liquid temperature compressor request fan requesti And for the digital variables e High suction pressure alarm e Low suction pressure alarm High condensing pressure alarm Sign of life e Prevent active Each generic function can be associated with a unit of measure and a description Below is a description of the operation of four types of generic functions Stages pRack PR100 can manage up to 5 stage functions with either direct or reverse operation In both cases a set point and a differential can be set the operation of the corresponding output is shown in the figure for both cases Direct stage Regulation variable Setpoint Reverse stage Regulation variable Setpoint Fig 6 aj If an enabling variable has been set the corresponding output is active if the enabling is also active For each stage a high alarm threshold and a low alarm threshold can be set and are absolute For each alarm the activation delay and priority can be set See chapter 8 for details on the alarms One example of using the generic stage functions may be activation of the fans on the room units based on the temperature Modulation pRack PR100 can manage up to 2 modulation functions with either direct or reverse operation In both cases a set point and a differential can be set the operation of the corresponding output is
241. y temperature or pressure line 2 PRESSURE PRESSURE TEMPERATURE Dbb01 Regulation type Condenser control type line 2 NEUTRAL PROPORTIONAL BAND ZONE EUTRAL ZONE Dbdo1 Enable condensing Enable setpoint compensation condenser line 2 NO O setpoint compensation YES Cond temperature pres Type of high condensing pressure temperature alarm threshold ABSOLUTE ABSOLUTE Dbe01 sure high alarm line 2 RELATIVE Threshold High condensing pressure temperature alarm threshold line 2 24 0 barg a Dbf01 Number of present fans _ Number of fans line 2 3 0to 16 Modulate speed device Fan driver type line 2 NONE NONE INVETER Dbg01 PHASE CONTROL Type 44 Ha output PWM phase control for condenser modulating device _ ae MCHRTE FCS3 CONV010 Mask index Display description Description Default UOM Values El E Other funct The VOs available depend on the selected configuration the following are just some examples For the complete list of VO positions available see Appendix A 5 Oil temperature probe position line1 Bl B1 B10 Oil temperature probe type line 1 4 20mA NTC PT1000 0 1V 0 10V Eaaa04 4 20MA 0 5V HTNTC display only Oil temperature probe value line 1 mu Upper value Oil temperature probe max limit line 1 30 0 barg sa EE Lower value Oil temperature probe min limit line 1 0 0 barg BRE ie Calibration Oil temperature probe adjustment line 1 0 0 barg oa EE

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