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pRack pR100T user manual for the management of CO

1. Mask index Display description Description Default UoM Values VES u NO YES S1 Enable stages and stages for compressor group 1 line 1 100 100 50 100 50 75 100 Caf92 25 50 75 100 33 66 100 S4 Enable stages and stages for compressor group 4 line 1 ne e oe C01 Size group for compressor 1 line 1 or presence of inverter line 1 S1 S1 S4 INV Caf93 C12 Size group for compressor 6 line 1 S1 gt S1 54 Min time on Minimum time on for Digital Scroll compressor line 1 60 S 0 999 Min time off Minimum time off for Digital Scroll compressor line 1 180 S 0 999 Caf95 D ue Minimum time between startups for Digital Scroll compressor line 1 360 S 0 999 l WET x gt Reactivate startup Time for reactivation of startup procedure for Digital Scroll compressor line 480 ETA 0 9999 procedure after 1 Minimum voltage Voltage corresponding to the minimum capacity of the inverter line 1 0 0 V 0 0 10 0 Maximum voltage Voltage corresponding to the maximum capacity of the inverter line 1 10 0 V 0 0 100 Cag01 Nominal freq Nominal frequency frequency at nominal capacity line 1 50 Hz 022150 Term M capacity for compressor managed by inverter at nominal frequency 10 0 KW 0 0 5000 Penne E pass from minimum to maximum capacity for modulating
2. Fig 7 as pRack pR100T 0300022EN rel 1 0 21 01 2015 7 15 2 Unitof measure pRack pR100T can manage two units of measure the international system and Imperial O Note the 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 7 15 3 Sign of life pRack pR100T can manage a digital output acting as a sign of life activated when pRack pR100T 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 7 15 4 Liquid non return pRack pR100T 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 7 16 Settings 7 16 1 Clock pRack pR100T features 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 pR100T can be set as follows day month year dd mm yy
3. Mask index Display description Description Default UoM Values Daf07 Daf08 Custom rotation on order OST or devices for customi rotai 1 1 16 condensing line 1 Daf09 Daf10 Custom rotation off on ASI devines EUER RSEN 1 1 16 condensing line 1 NONE Dag01 Speed modul device Modulating condenser device type line 1 NONE se INVERTER PHASE CUT OFF CONTROL Standby zone reg Fan modulation even in dead zone line 1 NO NO YES Min out value Minimum voltage for compressor inverter line 1 0 0 V 0 0 9 9 Dag02 Max out value Maximum voltage for compressor inverter line 1 10 0 V 0 0 99 9 Min power ref Minimum capacity of fan modulating device line 1 60 06 0 100 Max power ref Maximum capacity of fan modulating device line 1 100 06 0 999 Rio ime dem pass from minimum to maximum capacity for fan modulating device 1200 0 32000 Dag03 Falling time dd pass from maximum to minimum capacity for fan modulating device 1200 0 32000 Num control fans Number of fans under inverter only for alarm enabling 1 gt 0 16 Split Condenser Enable split condenser line 1 NO NO YES Controlled by l Dag04 Digital input Split condenser controlled by digital input line 1 NO YES External temp Split condenser controlled by external temperature line 1 NO YES Scheduler Split condenser controlled by scheduler line 1 gt gt NO YES Daa05 Ext Temp Set Split condenser setpoint by external te
4. Communication error No response N Symbols flashing from the pRack or Key firmware ua version is incompatible N men Symbols steady Password error Symbols flashing T f key is i tible N Y ymbols flashing Type of key is incompatible Symbols steady The key is missing one or more required files memory empty no kit for the type of pRack connected d Symbols steady Incompatibility between the software P start flashing start on the key and the pRack HW Symbols steady Incompatibility between pRack mode flashing mode application and HW application size T Symbols steady No logged data present on the pRack N Steady Type of key not programmed Tab 11 a Errors after pressing the START button j Symbols flashing and buzzer Write operation start buzzer sounding intermittently failed Symbols flashing and buzzer Read operation start buzzer sounding intermittently failed Symbols flashing and buzzer Read logs start buzzer sounding intermittently operation failed Incompatibility between log configuration and pRack HW no dedicated flash memory This error does not prevent writing other files Symbols steady flashing Steady Insufficient space to read logs Flashing Generic error gt gt P PPP Tab 11 b CAREL 11 2 pRack Manager operating instructions pRack Manager is a program that lets you manage all
5. Summary of inputs outputs and oil injection parameters Mask Description Analog inputs Bab63 Oil differential pressure probe 1 T Eaaa57 Oil level compressor 1 Digital inputs Eaaa58 Oil level compressor 2 Analog outputs _ Digital outputs Eaaa40 Oil level valve compressor 1 Faaa4 1 Oil level valve compressor 2 Enable oil level management Eaab10 Number of compressor alarms associated with the oil level TT Oil level valve opening time Oil level valve closing time Eaab11 Delay for oil level valve pulsing at startup Maximum pulsing time for the oil level valve Tab 7 h pRack pR100T 0300022EN rel 1 0 21 01 2015 28 CAREL Summary of inputs outputs and oil receiver level parameters Mask Description Analog inputs Bab63 Oil separator differential pressure probe Digital inputs san Eu Analog outputs Digital outputs Bac71 Oil separator Type of oil level separator control with min level only with min and max level and with compressor status Minimum separator valve closing time Minimum oil level detection delay line 1 Valve opening time during oil level reset Valve closing time during oil level reset Valve opening time with correct oil level Valve closing time with correct oil level Oil receiver differential pressure threshold Oil receiver differential pressure Oil receiver differential pressure delay Tab 7 i Eaab12
6. Parameters Eaab13 Eaab15 7 11 Subcooling pRack pR100T can control subcooling in two different ways with the condensing temperature and the liquid temperature 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 CPF Threshold Fig 7 ak Tcond Tliq In the second case the output is active for liquid temperature values greater than a threshold with fixed differential Digital output corr Threshold Tliq Fig 7 al 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 CAREL 7 12 Heat recovery Pe Fig 7 am pRack pR100T manages up to two heat recovery functions at the same time The related parameters can be set from the main menu branch E e a b 01 Activation and control of each heat recovery function will reflect the percentage of heat demand calculated based on one of the following digital input temperature probe external analogue signal In the last two cases a digital input can still be used to enable the function Once a
7. compact pGDE pRack fu Tx Rx GND Tx Rx GNX Los J6 J7 J8 isosate0 9 J10 T Mm m o n n AO A m s PED ERAT 3 B afer ony VAN J11 J12 J13 Compressor Rack Controller E AOOLIIE input voltage max power 24 V 410 1596 50 60 Hz x 14VA 11W serial card 1 48 V 36Vmin 72 Vma J1 J2 J3 9 v y Qo a _ A i oS MW ere M o 32 8 24 Vac D 230 Vac 35 VA TRADRFE240 dedicato CUD HL Ultracap Technology Fig 3 d pRack pR100T 0300022EN rel 1 0 21 01 2015 12 shield J i 7 VBAT w N A COMA NOA D EVD evolution Ney G VREF ratiometric pressure fransducer driver A NTC driver A ratiometric pressure transducer driver B NTC driver B regulation of driver A digital input to start the tt indirizzo seriale 198 CAREL CAREL 4 INSTALLATION 4 1 Generalinstallation instructions 4 1 1 Installation procedure Environmental conditions Avoid assembling the pRack pR100T and the terminal in environments with the following characteristics temperature and humidity that do not conform to the rated operating data of the product strong vibrations or knocks exposure to aggressive and polluting atmospheres e g sulphur and ammonia fumes saline mist smoke so as to avoid corrosion and or oxidation strong magnetic and or radio frequency interfer
8. Connection Local E LocalConnection BaudRate Auto SearchDevice Auto pLAN DeviceAddress 1 DevicePassword A RemoteConnection DeviceAddress 0 DevicePassword TelephoneNumber A ConnectionData ModemType PortNumber COM8 Fig 11 c Switch the controller off and then on again and use the Connect command to establish the connection When the connection is established the flashing message ONLINE will appear at the bottom left of the screen Col Settings CAREL Notify d Select Device to connect with Sets pRack pRTIOOT Compact 2 0 0 LogEditor hd PP EE es pRack pRi1DOT Compact 3 1 16 ONLINE Fig 11 d 11 2 1 IInstallingtheapplicationtoupdatethesoftware Select the directory containing the application program files and click Upload to upload the program to the pRack controller 2 pRackLoad nos Application Masks fibe UP Strategy file SLB ABINABLX Default settings file DEW Fig 11 e 11 2 2 Commissioning Using the mouse select Commissioning at the bottom left A new work environment will appear Commissioning LogEditor Fig 11 f Click on configura dispositivo configure device to display all the application variables The variables can be selected according to the categories that appear at the bottom p orsus aT BEE Lr I m id WEHAFTICELLSER en like Tii ruri Qua aT t d s B BEIEEFTYLEILBER 1 AEHIEETTCTILREL pt ACL fi nu a a PeEEEREESE
9. ll La _ _ Lu value 10V Min capacity 0 96 Setpoint Differential Differential Fig 7 u Min output value 0V Regulation probe value CAREL Example 2 minimum modulating output value 0 V maximum value 10V minimum modulating device capacity 60 96 maximum 100 96 Analog output Max capacity 100 96 Max output value 10V Min output value 0 V Min capacity 60 Setpoint Differential Differential Fig 7 v Regulation probe value Example 3 minimum modulating output value 2 V maximum value 10V minimum modulating device capacity 60 96 maximum 100 96 Analog output Max capacity 100 96 Max output value 10V Min capacity 60 96 Setpoint Differential Differential Fig 7 w Min output value 2V Regulation probe value Cut off pRack pR100T manages a control cut off for the fans functions and related parameter settings can be enabled 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 S Cut Off setpoint S Regulation setpoint Differential Differential Fig 7 x Max output value Cut Off value of request Regulation probe value 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
10. nomepRacklog CSV lt nomepRacklog_ GRAPH gt CSV lt pRacklogName gt BIN lt pRacklogName gt CSV lt pRacklog_GRAPHName gt CSV only if log files have been configured download only lt ApplicationName gt BLB download The files exchanged with the NAND memories of pRack controllers are e any file that the pRack can independently copy to the flash memory see above list e external files e g pdf or doc files for documentation 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 pR100T 0300022EN rel 1 0 21 01 2015
11. Gas cooler backup probe position line 1 B1 Da bl BIO 0 1V Gas cooler backup probe type line 1 4 20 MA 0 10 V Daa18 4 20 MA 0 5 V display only Gas cooler backup pressure value gt di Max limit Gas cooler backup maximum pressure value line 1 30 0 bar E Min limit Gas cooler backup pressure minimum value line 1 Calibration Gas cooler backup pressure probe calibration line 1 pRack pR100T 0300022EN rel 1 0 21 01 2015 42 CAREL Mask index Display description Description Default Values DO Fan 1 DO position line 1 03 01 29 Daa21 Status display only Status of fan 1 DO line 1 gt 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 Daa38 AO Inverter fan AO position line 1 0 01 06 Status display only Inverter fan output value line 1 0 0 0 100 0 Condenser regulation by temperature or pressure line 1 TEMPE Dab01 Regulation Note with HPV valve management only temperature regulation is enabled _ RATURE PAE ane eMe tu Regulation type Condenser regulation Type line 1 PAO E E IAAL BANE BAND DEAD ZONE Dab02 Minimum Condenser setpoint lower limit line 1 TN ue zu Maximum Condenser setpoint upper limit line 1 m us S Dab03 Setpoint Condenser setpoint
12. Management of the HPV valves which separates the high pressure part of the system from the medium pressure part determines the transcritical and subcritical operation mode of the unit In transcritical mode valve regulation is done to obtain maximum yield while in subcritical mode regulation controls the subcooling The HPV valve has a proportional integral PI type of regulation which uses an optimal pressure value of the gas cooler calculated on the basis of the gas cooler pressure and temperature as a regulation setpoint as described hereafter Enabling HPV valve management coincides with enabling the transcritical system management mode The HPV valve can be managed directly by pRack pR100T with built in driver PRK30TD or with external EVD EVO driver Both solutions are compatible with the majority of valves available on the market Direct control via serial connection is enabled under EEVS electronic expansion valve settings accessible from the main menu branch E i c The configuration parameters on the other hand are accessible from the main menu branch Ei The algorithm for calculating the regulation setpoint of the HPV valve can be optimized or customized by the user according to what was set by the parameter Calculation of the optimized setpoint The calculation of the optimized setpoint is illustrated in the figure SOK lt gt a IA TZ XX lt lt n 2S SS o a lt lt o RRI RRS
13. Note certain special conditions or functions in the pRack software cause the unit to shutdown e Configuration of some parameters e g inputs outputs configuration of compressors inverter parameters e Installation of default parameters Manual management 7 3 Control pRack pR100T can manage two types of control e Proportional band P P e 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 In addition pRack pR100T 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 7 3 1 Proportional band The operating principle is normal proportional or proportional integral control P PI The control set point is central consequently for proportional control
14. SUN TBI cS ce Enabling and definition of time band 1 start hour and minute end hour and j minute condensing line 1 TBA S e Enabling and definition of time band 4 start hour and minute end hour and Eeab07 minute condensing line 1 SAVE CHANGES Change Time band change action LOAD PREVIOUS CLEAR ALL MONDAY SUNDAY MON FRI Copy to Copy settings to other days 0 MON SAT SAT amp SUN ALL Feab08 Miss 7 Offset to apply to the HPV valve setpoint for compensation by analog input 100 barg 20 0 200 in the event of heat recovery psig recovery Gen funct 1 Enable generic stage function 1 DISAB DISAB ENABLE Efa05 m Gen funct 5 Enable generic stage function 5 DISAB DISAB ENABLE Efa06 Requlation variable Requlation variable for stage 1 generic function Mode Direct or reverse regulation DIRECT DIRECT REVERSE Enable Enabling variable for stage 1 generic function es Efa07 Description Enable description change SKIP SKIP CHANGE na Description Efa0g Setpoint Setpoint stage 1 generic function 0 0 C nu Differential Stage 1 generic function differential 0 0 C EM de High alarm High alarm enabling for stage 1 generic function DISAB DISAB ENABLE High alarm High alarm threshold for stage 1 generic function 0 0 C eus Delay High alarm delay for stage 1 generic function 0 S 0 9999 Efa09 Alarm type High alarm type for stage 1 generic function NORMAL NORMAL SERIOUS Low alarm L
15. e The red LED on the terminal and the buzzer where present The type of acknowledgement automatic manual semiautomatic Any activation delay The complete list of alarms with the related information as described above is available in Alarm table 9 1 Alarm management All alarms feature the following behaviour e 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 e Pressing the 75 Alarm button the red LED stays on steady the buzzer is muted and the alarm screen is shown f there is more than one active alarm these can be scrolled using T Up V Down This condition is signalled by an arrow at the bottom right of the screen e Pressing the 7 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 9 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 9 1 2 Acknowledgement The alarms can have manual automatic or semiautomatic acknowledgement Manu
16. 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 7 16 2 Time bands pRack pR100T 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 from lowest to highest is 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 t
17. ActualSetp Actual setpoint for gas cooler regulation under pressure proportional 7 9 regulation with compensations applied line 1 Ab06 display only Dead zone Dead zone for gas cooler requlation under pressure line 1 TR ub l Increase differential for gas cooler regulation under pressure regulation in Incr Diff ma dead zone line 1 Decr Diff Decrease differential for gas cooler regulation under pressure regulation in i 9 dead zone line 1 UserSetp Setpoint set by the user for condensing regulation under pressure he 9 proportional requlation line 2 Ab07 display only ActualSetp Actual setpoint for condensing regulation under pressure proportional 7 9 regulation with compensations applied line 2 Diff Condensing regulation under pressure differential proportional regulation i 4 j line 2 j seitei Setpoint set by the user for condensing regulation under pressure iy 99 proportional requlation line 2 ActualSetp Actual setpoint for condensing regulation under pressure proportional 9 regulation with compensations applied line 2 Ab08 display only Dead zone Dead zone for condensing regulation under pressure line 1 i7 Increase differential for condensing regulation under pressure regulation in ux Incr Diff uL dead zone line 2 Decr Diff Decrease differential for condensing regulation under pressure regulation in ee dead zone line 2 Ab12 Setpoint Setpoint without compensation suc
18. After having correctly installed pRack a number of preliminary operations are required to configure the installation O Note pRack pR100T is available as standard with English Note If no option is chosen within a time set by parameter and visible on the screen the current language remains selected pRack PR100 software shows a screen for choosing between two possible system configuration solutions as follows e Wizard e Advanced configuration 5 2 Wizard Fig 5 a This solution is for obtaining the recommended configuration for the system By responding to a series of questions from screen to screen the user is guided in choosing the devices that are present Once the guided procedure is finished the final obtainable results can be viewed report and if the configuration is correct direct installation can be performed of the parameters for pRack pR100T operation including those associated with the inputs and outputs as described in paragraph 4 4 5 3 Advanced configuration Bann ana E E E ain nma BSO nia en nm EEE NE E nta l ann BU E E Bati jue ned an am a Ba nn nis a8 Rr ama E Ria at a a nin Eun n mm S TL Ra Senti aaa aa enti Nano Pat 5 LEM nd re V RR as masa mm an aun w a ws fo non H sin anni Fig 5 b This solution allows you to establish the configuration for the pLAN structure needed for correct operation of the system Once the procedure for choosing
19. NO YES Ehb04 Delay Delay for line 1 compressor On forcing due to line 2 compressor On 30 S 0 999 Force off L2 comps for L1 off Enable line 2 compressor Off forcing due to line 1 off NO NO YES Enable minimum threshold Enable line 1 activation for DSS only when the suction pressure is greater NO u NO YES Ehb05 for act of L1 than a minimum threshold Threshold Minimum threshold for line 1 activation for DSS 2155 EhbO6 Enable pump down Enable pump down with at least one LT compressor active NO NO YES Threshold Pump down threshold 1 5 barg iss id RPRV tank pressure probe position gt B1 B10 RPRV tank pressure probe type 4 20 mA md Eia01 display only RPRV tank pressure probe value Max limit RPRV tank pressure probe maximum value 60 0 barg Mia Min limit RPRV tank pressure minimum value 0 0 barg La 5 Calibration RPRV tank pressure probe calibration 0 0 barg DI HPV alarm digital input position m 01 18 B1 B10 775 Eia04 Status HPV alarm digital input status Closed Open Logic HPV alarm digital input logic NC NC NO Function HPV alarm digital input status Not active Active Eia06 n HPV valve analog output position 0 01 06 Status display only HPV valve analog output value 0 0 0 100 0 Enable FIP valve HPV valve management enabled or transcritical operation mode enabled NO NO YES EibO1 management Bisorthiselsetion Selection of the type of algorithm
20. RA d Value corresponding to the maximum offset that can be applied for setpoint xx Max limit l dle compensation for heat recovery line 1 un Value corresponding to the minimum offset that can be applied for setpoint e Min limit e uu compensation for heat recovery line 1 Eeab01 Enable heat rec Enable heat recovery function line 1 NO gt NO YES Eeab02 Gas cooler press lower limit Gas cooler pressure lower limit for heat recovery line 1 0 0 barg ud 7 Enable compens ari Enable heat recovery setpoint compensation by analog input NO NO YES t isa Maxi ffset that can be applied to the heat tpoint f TE P aximum offset that can be applied to the heat recovery setpoint for 100 F 200 200 compensation by digital input Temperature modulation Enable heat recovery control by discharge temperature line 1 NO NO YES Eeab04 Setpoint Heat recovery discharge temperature setpoint line 1 0 0 C iss EN 32 Differential Heat recovery discharge temperature differential line 1 0 0 C T 0 0 99 9 pa naang Disable floating condensing in the event of active heat recovery NO NO YES ESD Offset setpoint Offset to apply to the setpoint replacing the floating condensing in the event 7 999 999 of active heat recovery Enable Activat by scheduler Enable heat recovery control by scheduler line 1 NO NO YES Ease dap deos Activation of heat recovery independent of closing periods NO NO YES Day of the week si MON
21. e CFloating condensing without heat recovery SP Tout AT screen Dad06 e Floating condensing during heat SP Tout OffsetGC where OffsetGC gt AT As the last step of the heat recovery function the Gas Cooler can be bypassed when the following conditions are true bypass is enabled screen Eeab e the heat demand percentage exceeds a settable limit value e g 90 e the bypassed gas temperature cooler is lower than a certain settable limit value e g 20 C recovery acting on GC When these conditions are true the bypass valve will start modulating with its set point being calculated based on the bypassed Gas Cooler temperature until the Gas Cooler is completely bypassed when the temperature allows When heat recovery is deactivated the HPV valve set point gradually returns to the calculated value over a settable time The same is also true for the condenser control set point 7 13 Generic functions pRack pR100T allows the use of free inputs outputs and some internal variables for generic functions Attention generic functions are available on the pRack pR100T boards with pLAN address from 1 to 4 or on all boards that manage a suction or condensing line however only the parameters related to the functions managed by boards 1 and 2 are sent to the supervisor system The generic functions available for each board are 5 Stages 2 modulations e 2 alarms scheduler Each function can be enabled disabled
22. low pressure 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 Overload HP LP Overload 3 HP LP Oil Overload HP LP Oil Overload HP 5 LP Oil Oil warning Overload HP LP Oil Oil warning Rotation Overload HP LP 7 Oil Oil warning Rotation Generic Tab 9 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 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 Fo
23. lt S 1000205020 lt lt lt lt XEZZZ RL ZL RK TR RR KR SS X lt xx X XXX XX D lt gt Oe KS o X lt LL lt SSS Os RS SS a RSS S ves SS SS SS OSS SS SL XS stats lt gt 0 070 RL Z TZ Ri ce RK S RRR lt SS Or OO lt XXX XR lt XS SS XE RR RS NON CLI SONS para lt lt KRS lt S RS LR RR lt S es RR RSS RS SIL no RE LL RL So SKS OS ROKK PISO lt SS fx I tte uu esta AI SZ SS RR lt oS una I K gt iS Z SSS I TH os SE ee SISOS OO XLS LT RSI 2 RR R05 RO sa TI X La HPV OPENING ZONE NOR eo es RSS lt see XXX XX XX lt RS E S s 4 S lt X S S X KX IEEE ELLI LLLI N hi 5 NO SKK KK KK III IIR INN HHI III IIR RR RIR IRRE ORR NIS KKK 091919191919 9 KOO KK x KKK KKH NHN HHH INN HHH INNS ttt LI OQ x oe RP e ete SS RS SS LS 0905 I oS SS RS 005 Nd K e amp lt S lt S Le X en x RS RS RRR N SS NS nn S KS n t V e lt lt K lt N LAM es o es V 3 SS KR x x S lt SIS gt oS e n dn na lt w lt gt ox Me RS ox XS lt see lt S eo e lt S x Ne XX RK lt SS w osa ua dc RE DS Jo SG CRA On He E 6e RRI lt lt pa Ro Eee A
24. pRack pR100T Enc pRack pR100T user manual for the management of CO condensing units LEGGI E CONSERVA QUESTE ISTRUZIONI 4 READ AND SAVE THESE INSTRUCTIONS A amp SIGNAL N pia R V Erud READ CAREFULLY IN THE TEXT NO POWER High Efficiency Solutions CAREL IMPORTANT CAREL bases the development of its products on decades of experience in HVAC 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 the aspects of the product and the software included with the product respond to the requirements of the final application despite the product being developed according to start of the art techniques The customer manufacturer developer or installer of the final equipment accepts all liability and risk relating to the configuration of the product in order to reach the expected results in relation to the specific final installation and or equipment CAREL may based on specific agreements act as a consultant for the positive commissioning of the final unit application however in no case does it accept liability for the correct operation of the final equipment system The CAREL product is a state of the art product whose operation is specified in the tech
25. time Fig 7 ab 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 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 point as shown in the figure Offset max Offset min Probe value Lower value Upper value Fig 7 ac Compensation from analogue input applies to setpoint e suction gas cooler HPV minimum These compensations can be enabled separately 7 8 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 7 ad The set point is calculated by the supervisor and acquired by the pRack pR100T 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 If the supervisor is disconnected after 10 minutes fixed the pRack pR100T controller
26. uds E ol Unit OFF due to Alarms MAU s AI Unit OFF due to black out line and individual Unit OFF from supervisor condensing line __ Unit status with unit OFF Unit OFF from default display only Unit OFF from digital input Unit OFF from keypad Unit OFF from manual mode Number compressors on with unit ON 0 12 gt Compressor activation percentage with unit ON 0 100 Number of fans on with unit ON gt 0 16 Fan activation percentage with unit ON 0 100 Hour and minutes gt Date L1 Suction Suction pressure or temperature line 1 m TP ud L1 Gas cool Gas cooler pressure or temperature line 1 e anf L1 Superheat Superheating line 1 a m us L1 Suc Temp Suction temperature line 1 m uw L1 Disch Temp Discharge temperature line 1 DN cd Main mask for Unit status with unit OFF See individual line mask values double suction Number Compressors on QS ON ien 2 2 ompressor activation percentage with uni line 6 ae era Number of fans on with unit ON line 1 0 16 Fan activation percentage with unit ON line 1 0 100 masks separated 75 Suction Suction pressure or temperature line 2 H P9 per each line L2 Condens Condensing pressure or temperature line 2 asl display only L2 Superheat Superheating line 2 L2 Suc Temp Suction temperature line 2 T uai L2 Disch Temp Disc
27. 0 0 barg 0 0 99 9 dani SI Decreasing compressor capacity time line 1 0 S 0 999 power time Enable heat recov as first NO Gba03 pie veri step Enabling heat recovery as first stage for condensing HP prevent line 1 NO VES Offset HeatRecov Offset between heat recovery and prevent setpoint line 1 0 0 barg 0 0 99 9 Enable ChillB as first l l NO Gba04 sei Enable ChillBooster as first stage for condensing HP prevent line 1 NO VES Chill offset Offset between ChillBooster and prevent setpoint line 1 0 0 barg e 0 0 99 9 Max num prevent Max number of prevent before locking compressors line 1 3 1 5 Gba05 eval ee Lit Prevent max number evaluation time 60 h 0 999 evaluation time Reset automatic prevent Reset maximum number of prevent line 1 NO NO YES Gao Common HP type Type of reset for common HP alarm line 1 AUTO co AUTO MAN Common HP delay Common high pressure delay line 1 10 S 0 999 Gca02 Common LP start delay Common low pressure delay at startup line 1 60 S 0 999 Common LP delay Common low pressure delay during operation line 1 20 S 0 999 cd En DICI Number of LP interventions evaluation time line 1 120 min 0 999 alarm evaluation ae Murer or tiee Patar Number of LP interventions in the period after which the alarm becomes a alarm becomes manual 5 gt 0 999 i manual reset line 1 line 1 Gca04 Liquid alarm delay Liquid level alarm delay line 1 0 0 999 Oil alarm delay Common o
28. 10 V Oil temperature probe type line 2 4 20 mA 4 20 mA 0 5 V HTNTC Eaba04 display only Oil temperature value line 2 i ii Max limit Maximum oil temperature value line 2 30 0 barg PE ud Min limit Minimum oil temperature value line 2 0 0 barg TE idi Calibration Oil temperature probe calibration line 2 0 0 barg ET 4 Enable com cool Enable common oil cooling line 2 YES NO YES l ci 0 1 analog output Eabb04 Number of oil pumps Number of oil pumps for common oil cooler line 2 0 0 2 digital outputs u NO digital outputs Enable pump out Enable AO of common oil cooler pump line 2 YES VES analog Gutbub DO Subcooling DO valve position line 2 01 29 P Ebba01 Status display only Subcooling DO valve status line 2 Closed Open Logic Subcooling DO valve logic line 2 NO NC NO Function display only Status of the subcooling valve function line 2 Not active Active Subcooling contr Enable subcooling function line 2 NO NO YES TEMP i n TEMP COND amp LIQUID Ebbb01 Subcooling control type line 2 LONE ONLY LIQUID TEMP Threshold Threshold for subcooling activation line 2 0 0 C 9999 9 9999 9 Subcooling display only __ Subcooling value line 2 0 0 C 999 9 999 9 49 pRack pR100T 0300022EN rel 1 0 21 01 2015 CAREL Mask index Display description Description Default UoM Values Discharge
29. 21 01 2015 48 CAREL Mask index Display description Description Default UoM Values Pre positioning Opening of the RPRV valve at start up during pre positioning 50 0 0 0 100 0 Eib20 i gt f Prepos time Pre positioning duration 5 S 0 9999 Eib21 Max RPRV valve opening Maximum opening of the RPRV valve 100 0 0 0 100 0 Max delta Maximum variation allowed for the HPV valve output 10 0 96 0 0 100 0 CO2 rec pressure setpoint Requlation setpoint for the pressure for the CO2 receiver 35 0 barg De 15 53 Eib22 Gain Proportional gain for the proportional integral regulation of the RPRV valve 20 barg barg 0 100 Int time Integral time for the proportional integral regulation of the RPRV valve 60 S 0 9999 Eib23 RPRV valve safety position _ RPRV valve safety position 50 0 0 0 100 0 Eib24 Force close with comp OFF Enable RPRV valve closure when all compressors on line 1 are off NO NO YES Delay clos with comp OFF RPRV valve closure delay when all compressors on line 1 are off 10 S 0 999 Threshold Receiver high pressure threshold alarm 45 0 bar ibi Diff Receiver high pressure differential alarm 5 0 barg uu i Eib25 Delay Receiver high pressure alarm delay 30 S 0 9999 Reset Receiver high pressure alarm res
30. ALTO7 __ HPV valve alarm Automatic R2 Safety procedure activation ALTO8__ RPRV valve alarm Automatic R2 Safety procedure activation ALTO9 _ Oil compressor alarm 1 Automatic Settable Not featured Related functions disabled ALT10 Oil compressor alarm 2 Automatic Settable Not featured Related functions disabled ALT11 Oil compressor alarm 3 Automatic Settable Not featured Related functions disabled ALT12 Oil compressor alarm 4 Automatic Settable Not featured Related functions disabled ALT13 Oil compressor alarm 5 Automatic Settable Not featured Related functions disabled ALT14 Oil compressor alarm 6 Automatic Settable Not featured Related functions disabled ALT15 Low superheat alarm Settable Settable RI Shutdown compressors line 1 ALT16 Low superheat alarm line 2 Settable Settable RI Shutdown compressors line 2 ALT17 HPV valve opening different from setpoint warning Automatic a Not featured ALT18 Receiver high pressure Settable Settable RI Shutdown compr line 1 can be enabled ALUO1 _ Configuration not allowed Automatic Not present Not present __ Shutdown unit ALUO2 _ Control probes missing Automatic Not present Not present Shutdown unit ALWO1 _ High pressure prevent warnin Automatic Config Not present Shutdown compr except min load stage ALWO2 High pressure prevent warning line 2 Automatic Config Not present m sali e ALW03_ Compressor inverter warning Automatic Not present Not present __ ALWOA _ Compressor inverter warn
31. Baa22 Caa33 Alarm 6 compressor 3 line 1 Baa23 Caa34 Alarm 7 compressor 3 line 1 Baa24 Caa40 Alarm 1 compressor 4 line 1 Baa25 Caa41 Alarm 2 compressor 4 line 1 Baa26 Caa42 Alarm 3 compressor 4 line 1 Baa27 Caa43 Alarm 4 compressor 4 line 1 Baa28 Caa44 Alarm 5 compressor 4 line 1 Baa29 Caa45 Alarm 6 compressor 4 line 1 Baa30 Caa46 Alarm 7 compressor 4 line 1 Baa32 Caa53 Baa33 Caa54 Alarm 1 compressor 5 line 1 Alarm 2 compressor 5 line 1 Baa34 Caa55 Alarm 3 compressor 5 line 1 Baa35 Caa56 Alarm 4 compressor 5 line 1 Baa36 Caa57 Baa37 Caa58 Alarm 5 compressor 5 line 1 Alarm 6 compressor 5 line 1 Baa38 Caa59 Alarm 7 compressor 5 line 1 Baa39 Caa65 Alarm 1 compressor 6 line 1 Baa40 Caa66 Alarm 2 compressor 6 line 1 Baa41 Caa67 Alarm 3 compressor 6 line 1 Baa42 Caa68 Alarm 4 compressor 6 line 1 Baa43 Caa69 Baa44 Caa70 Alarm 5 compressor 6 line 1 Alarm 6 compressor 6 line 1 Baa45 Caa71 Alarm 7 compressor 6 line 1 Baa47 Caa78 Alarm 1 compressor 7 line 1 Baa48 Caa79 Alarm 2 compressor 7 line 1 Baa49 Caa84 Alarm 1 compressor 8 line 1 Baa50 Caa85 Alarm 2 compressor 8 line 1 Baa51 Caa90 Alarm 1 compressor 9 line 1 Baa52 Caa91 Alarm 2 compressor 9 line 1 Baa53 Caa95 Alarm 1 compressor 1
32. Bac37 Caa75 Valve 3 compressor 6 line 1 Bac39 Caa 6 Equalization valve compressor 6 line 1 Bac41 Caa80 Line relay compressor 7 line 1 Delta relay compressor 7 line 1 Partwinding Star relay compressor 7 line 1 Bac42 Caa81 Valve 1 compressor 7 line 1 Bac43 Caa82 Valve 2 compressor 7 line 1 Bac45 Caa83 Equalization valve compressor 7 line 1 Bac46 Caa86 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 1 Bac48 Caa88 Valve 2 compressor 8 line 1 Bac50 Caa89 Equalization 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 1 Bac52 Caa93 Valve 1 compressor 9 line 1 Bac55 Caa94 Equalization valve compressor 9 line 1 59 pRack pR100T 0300022EN rel 1 0 21 01 2015 CAREL Digital outputs Mask index Description Channel Logic Notes Line relay compressor 10 line 1 Bac56 Caa96 Partwinding Star relay compressor 10 line 1 Delta relay compressor 10 line 1 Bac57 Caa97 Valve 1
33. Compressor 1 j OFF ON 3 STAGES Bba20 Force to Manual stages request for compressor 1 line 2 OFF 2 STAGES 4 STAGES m Compressor 12 n z OFF O 3 STAGES Bba34 ui Manual stages request for compressor 12 line 2 OFF 2 STAGES 4 STAGES MU purp Manual operation status for oil cooling pump 1 line 2 OFF OFF O Bba35 ek pumpa Manual operation status for oil cooling pump 2 line 2 OFF OFF ON Bba37 m Manual operation status for oil cooling fan line 2 OFF OFF ON Bba38 E Manual operation status for fan 1 line 1 OFF OFF O Force to Fan 16 j Bba53 Manual operation status for fan 16 line 1 OFF OFF ON Force to Bba54 RE Manual operation status for heat recovery pump line 1 OFF OFF ON Bba55 SURI Manual operation status for ChillBooster line 1 OFF OFF ON Force to Bba57 id Manual operation status for fan 1 line 2 OFF OFF ON Force to Fan 16 Bba72 Manual operation status for fan 16 line 2 OFF OFF ON Force to Bba73 ala UP Manual operation status for heat recovery pump line 2 OFF OFF ON Bba74 a Manual operation status for ChillBooster line 2 OFF OFF ON Bbb05 La L Manual request for continuous capacity for compressor 1 line 1 0 0 0 0 100 0 Bbb06 AU EHE Manual request for oil cooling pump line 1 0 0 06 0 0 100 0 pRack pR100T 0300022EN rel 1 0 21 01 2015 38 CAREL Mask index Display description Description Default
34. L2 Suction pressure or temperature line 2 E Main mask for Gas cooler Gas cooler pressure or temperature double suction L1 Suc Temp Suction temperature line 1 u lag ard maridas L1 Disch Temp Discharge temperature line 1 Mid ES L1 Superheat Superheating line 1 ka condensing line L2 Suc Temp Suction temperature line 2 ha mui display only L2 Disch Temp Discharge temperature line 2 xat L2 Superheat Superheating line 2 NM us gt Unit status with unit OFF See individual line mask values ies Compressor activation percentage with unit ON line 1 Hs 0 100 F Compressor activation percentage with unit ON line 2 zan 0 100 Fan activation percentage with unit ON line 1 0 100 Tab 8 a 33 pRack pR100T 0300022EN rel 1 0 21 01 2015 CAREL Mask index Display description Description Default UoM Values Pressure Suction pressure line 1 l Sat Temp Suction saturated temperature line 1 Eu AGUT display onl ActualSet Actual setpoint for pressure regulation with compensations applied line 1 __ Differen Regulation differential for pressure regulation line 1 3 Pressure Suction pressure line 1 ux Sat Temp Suction saturated temperature line 1 Aa02 display only Leni Actual setpoint fo
35. PRASSRARIGA SI Suction lines in different boards NO NO YES suction line Compressor type Type of compressors line 2 RO ex RECIPROCATING SCROLL Ib50 P yP yP P CATING Number of compressors Number of compressors line 2 3 lil Ib51 NEO OT AANE Ter cach Number of alarms for each compressor line 2 1 0 4 compressor NONE 1052 Modulate speed device Modulating device for first compressor line 2 NONE m INVERTER DIGITAL SCROLL SAME SIZE amp SAME SIZE amp SAME PARTIAL Ib70 Compress size Compressors sizes line 1 SAME as SAME SIZE amp DIFFERENT PARTIAL PARTIAL DEFINE SIZES Yes NO YES Jl Enable size and size for compressor group 1 line 1 _ KW 0 0 5000 Ib74 A a NO NO YES S4 Enable size and size for compressor group 4 line 1 B lw 0 0 5000 VES o NO YES S1 Enable stages and stages for compressor group 1 line 1 100 Y 100 50 100 50 75 100 25 50 75 100 33 66 100 Ib75 S46 Enable stages and stages for compressor group 4 line 1 Un m gt C01 Size for compressor 1 or presence of inverter line 1 S1 S1 S4 INV Ib76 ae C12 Size for compressor 6 line 1 S1 S1 54 i SAME SIZE 1060 Compress size Compressors sizes line 1 SAME SIZE DEFINE SIZES Yes NO YES S1 Enable size and size for compressor group 1 line 1 bi KW 0 0 5000 1561 MA TR NO NO YES S4 Enable size and size for compressor group 4 line 1 i KW 0 0 5000 pRack pR100T 0300022EN rel 1 0 21 01
36. SAI 14 53 PIRRO na 14 6 USER INTERFACE 15 ob rale 15 67 Desecnpuornror the aisplay usan ntes dim n ERR arr OE Er Po RU 15 OCME ada 15 os Mora descrit cla 16 7 FUNCTIONS 17 7 1 Schematic diagram and system configurations used 17 le Oil 17 e a comm 7 E COMPIE MRE 19 LL Cilicia 22 7 6 HPV valve management eerte titt ttes itti 24 77 RPRY valveinanedgefpielitussnenguuiecitti riores Cuncti cerit edeni dri 23 LC DAL 26 LB AOs ory TUNCUONE rile 27 LI I rat 27 HI Laica 28 LIZ Ra 29 PANES Ap oN ERU T T TM 29 7 14 Double line synchronization DSS tnnt 3 7 15 EEVS Electronic Expansion Valve Synchronization s 3 Li 32 7 17 Managing the default Values 32 5 pRack pR100T 0300022EN rel 1 0 21 01 2015 CAREL 8 TABLE MASKS 33 8 1 RITO rara 33 BZ Rd ia 54 lt 5o Ia 57 9 ALARMS 64 gr MIRROR QNT M 64 92 Compressor IIIS ean e 64 9 3 Pressure and prevent alarms eerte nosti 65 10 SUPERVISORY AND COMMISSIONING SYSTEMS 67 10 1 PlantVisor PRO and PlantWatch PRO supervisory systems 67 10 2 Commissioning SONATE licia 67 11 SOFTWARE UPDATE AND CONFIGURATION 68 TLI Smart Key operating IDStEUCEDIAS assai mds Pesce ert 68 11 2 pRack Manager operating instructions 69 pRack pR100T 0300022EN rel 1 0 21 01 2015 6 CAREL 1 INTRODUCTION 1 1 Main features pRack pR100T is the CAREL solution for control and management of C
37. compressor 2 line 2 Baa74 Cba21 Alarm 7 compressor 2 line 2 Baa76 Cba28 Alarm 1 compressor 3 line 2 Baa77 Cba29 Alarm 2 compressor 3 line 2 Baa78 Cba30 Alarm 3 compressor 3 line 2 Baa79 Cba31 Baa80 Cba32 Alarm 4 compressor 3 line 2 Alarm 5 compressor 3 line 2 Baa81 Cba33 Alarm 6 compressor 3 line 2 Baa82 Cba34 Alarm 7 compressor 3 line 2 Baa83 Cba40 Alarm 1 compressor 4 line 2 Baa84 Cba41 Alarm 2 compressor 4 line 2 C 2 Baa85 Cba42 Alarm 3 compressor 4 line 2 Baa86 Cba43 Alarm 4 compressor 4 line 2 Baa87 Cba44 Alarm 5 compressor 4 line 2 Baa88 Cba45 Alarm 6 compressor 4 line 2 Baa89 Cba46 Alarm 7 compressor 4 line 2 Baa91 Cba53 Alarm 1 compressor 3 line 2 Baa92 Cba54 Alarm 2 compressor 3 line 2 Baa93 Cba55 Alarm 3 compressor 3 line 2 Baa94 Cba56 Alarm 4 compressor 3 line 2 Baa95 Cba57 Alarm 5 compressor 3 line 2 Baa96 Cba58 Alarm 6 compressor 3 line 2 Baa97 Cba59 Alarm 7 compressor 3 line 2 Baa98 Cba65 Alarm 1 compressor 4 line 2 Baa99 cba66 Alarm 2 compressor 4 line 2 Baaaa Cba67 Alarm 3 compressor 4 line 2 Baaab Cba68 Alarm 4 compressor 4 line 2 Baaac Cba69 Alarm 5 compressor 4 line 2 Baaad Cba70 Alarm 6 compressor 4 line 2 Baaae Cba71 Alarm 7 compressor 4 line 2 Baaag Cba78 Alarm 1 compre
38. function if the conditions allow 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 pR100T force activates the ChillBooster if the conditions allow The following figure illustrates the activation thresholds for the prevent function and the safety devices Pressure HP by pressostat HP by probe Prevent Heat reclaim or ChillBooster time Fig 9 e CAREL 10 SUPERVISORY AND COMMISSIONING SYSTEMS pRack pR100T 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 are available In addition pRack pR100T can be connected to the pRack Manager commissioning software 10 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 pR10OT For details on the models of card available see Chapter 1 Note In general the pRack boards that manage the sucti
39. only operation is schematised in the following figure Regulation request I Regulation Differential Differential J probe value Setpoint Fig 7 c For example for 4 devices with the same capacity and proportional only control start up occurs as shown in the figure Devices activation Suction pressure Differential Differential Setpoint Fig 7 d pRack pR100T 0300022EN rel 1 0 21 01 2015 With P I 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 Pel Setpoint Fig 7 e 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 7 3 2 Neutral zone The operating principle is schematised in the following figure Regulation request Decrease Neutral Increase 10096 Re
40. 0 100 some form of power forcing is active Aa54 display only bate di Power delivered from fan 16 of line 2 a to the right of the value means that F16 e 0 100 some form of power forcing is active Discharge temperature Discharge temperature line 2 il Aa55 display only External temperature External temperature line 2 EN ind Off Stage 2 Actual status Actual status of screw compressor 1 with stage modulation Start up Stage 3 Stage1 Stage 4 Off Stage 2 Req Status Requested status of screw compressor 1 with stage modulation Start Up Stage 3 Stage Stage 4 AEO SORA T Countdown for minimum startup time for screw compressor 1 with stage Min time on a S 0 999 modulation ai Countdown for minimum shutdown time or delay between subsequent 7 0 999 startups for screw compressor 1 with stage modulation Next step Countdown for next stage startup for screw compressor 1 with stage I n 0 999 modulation Off Status Actual status of screw compressor 1 with continuous capacity modulation Start Up Shut down Aa61 display only Norm operating Shutdown time Shutdown time for screw comp 1 with continuous capacity modulation 0 999 Max reachTime Countdown for minimum shutdown time or delay between subsequent startups for screw compressor 1 with continuous capacity modulation 0909 Safety time Minimum on time Countdown for startup time for screw compressor 1 wit
41. 1 0 21 01 2015 16 CAREL 7 FUNCTIONS 7 1 Schematic diagram and system configurations used The schematic diagram of a condensing unit system is shown in the figure Fig 7 a 7 2 Unit On Off The unit can be switched on and off from Userterminal e Supervisor 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 Supervisor Fig 7 b 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 condenser line stops when both suction lines are off and starts when at least one suction line is ON
42. 50 75 100 Stage configuration Stage configuration screw compressor 1 100 25 50 75 100 33 66 100 Common time Enable common delay time from one stage to the next screw compressor 1 Enable Disable Enable Common time Caf22 Tineberreenctage Enable common delay time from one stage to the next screw compressor 1 0 S 0 999 aaa Minimum compressor delay time in order to reach each capacity stage from 0 999 the previous one screw compressor 1 Caf23 Intermittent valve time Intermittent on off time for capacity control valves screw compressor 1 10 S 0 99 O ON Caf24 iena Configuration of the behaviour of the valves during startup and stages screw u X OFF compressor 1 Intermittent P Pulsing Eu ii Enable time limit at minimum capacity screw compressor 1 Enable Disable Enable minimum power Caf25 Max perman time Max time for compressor operation at minimum capacity screw compressor 1 60 S 0 9999 Time to return to minimum after the compressor was forced to the second Limit active for va l 0 S 0 9999 stage after staying at minimum for maximum time screw compressor 1 gt l 5 Caf26 Miniman sonar Minimum compressor capacity in case of high capacity range usually 25 25 o6 0 100 only for continuous compressors COMISO prem Aare Startup phase time after electric startup 10 S 0 999 duration Caf27 Time to reach Maximum time in order to reach maximum capacity continuous capacity 120 0 999 Maximum power con
43. 8 Other specifications Operating conditions 10T60 C 90 rH non condensing Storage and transport conditions 20T70 C 90 rH non condensing Index of protection IP40 front panel only Environmental pollution 2 Classification according to protection against electric shock to be integrated into Class and or Il appliances Period of stress across the insulating parts long Type of action LE Type of disconnection or microswitching microswitching Category of resistance to heat and fire Category D UL94 V0 Immunity against voltage surges Category 2 Ageing characteristic operating hours 80 000 No of automatic operating cycles 100 000 EN 60730 1 30 000 UL 873 Software class and structure Class A Category of immunity against surges Category 3 IEC EN 61000 4 5 Tab 2 h The device is not designed to be hand held 2 9 Mechanical dimensions N Qa ae Zz z PWM 0 10V D J9 J10 UUU AX po J7 ue ONE input voltage 24 V 4 10 1596 50 60 H 48 V 36Vmin 72 Vmax nani J1 v Fig 2 a The icon means to refert to this techinical leaflet during the electrical installation pRack pR100T 0300022EN rel 1 0 21 01 2015 115 60 CAREL 3 TERMINALS 3 1 Description of the terminals 3 2 Electrical connections e ine AC power supply on E ee i wl zo S 9 PWM 0 10V O Jo ISOLA
44. Do not attempt to open the device in any way other than described in the 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 the device Do not use the product for applications other than those specified in the technical manual 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 the 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 legislation in no case will CAREL its employees or subsidiaries be liable for any lost earnings or sales losses of data and information costs of replacement goods or services damage to things or people downtime or any direct indirect incidental actual punitive exemplary special or consequential damage of any kind whatsoever whether contractual extra contractual or due to negligence or any other liabilities deriv
45. Eaab14 If the pressure difference between the oil receiver and suction is less than this threshold the solenoid can be forced to open It is also possible to set a delay to be applied when the pressure difference exceeds the threshold the valve will be closed as soon as the pressures difference has been restored 7 10 3 Summary of inputs outputs and oil parameters The following are summary tables of the inputs outputs used and the parameters with indications of the related configuration screens For details refer to Appendix A 1 Summary of inputs outputs and oil cooling parameters Mask Description Bab41 Eaaa05 Oil temperature probe compressor 1 nalog inputs Bab42 Eaaa06 Oil temperature probe compressor 2 Digital inputs m Analog outputs Digital outputs Eaaal Oil cooling compressor 1 Eaaa19 Oil cooling compressor 2 Enable oil cooling compressors Eaab15 Oil cooling functioning only when compressor functioning Oil temperature setpoint Oil temperature differential Fan startup time in case of oil probe error Fan shutdown time in case of oil probe error Oil cooler high temperature alarm threshold Oil cooler high temperature alarm differential Oil cooler high temperature alarm delay Oil cooler low temperature alarm threshold Oil cooler low temperat alarm differential Oil cooler low temperature alarm delay Tab 7 9 Eaab08 Parameters Eaab16 Eaab20
46. R2 AlCap__ High compressor oil temperature line 2 Automatic Config R2 ALCaq__ High compressor oil temperature from 1 to 6 Automatic R2 Related functions disabled ALCar Low compressor oil temperature from 1 to 6 Automatic R2 Related functions disabled ALFO1 __ Fan circuit breaker Man Autom Config R2 Shutdown fans ALFO2 __ Fan circuit breaker line 2 Man Autom Config 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 5 PLB1 Man Autom Config Config ALG12 Generic high temperature alarms 1 5 PLB2 Man Autom Config Config ALG13 Generic high temperature alarms 1 5 PLB3 Man Autom Config Config ALG14 Generic high temperature alarms 1 5 PLB4 Man Autom Config Config ALG15 Generic low temperature alarms 1 5 PLB1 Man Autom Config Config ALG16 Generic low temperature alarms 1 5 PLB2 Man Autom Config Config ALG17 Generic low temperature alarms 1 5 PLB3 Man Autom Config Config ALG18 Generic low temperature alarms 1 5 PLB4 Man Autom Config Config ALG19 _ Generic high modulation alarms 6 and 7 PLBI Man Autom Config Config ALG20 _ Generic high modulation alarms 6 and 7 PLB2 Man Autom Config Config ALG21 _ Generic high modulation alarms 6 and 7 PLB3 Man Autom Config Config ALG22 Generic high modulation alarms 6 an
47. Threshold for low superheat alarm line 1 3 0 K 0 0 99 9 threshold Cae29 Differen Low superheat alarm differential line 1 1 0 K 0 0 99 Switch OFF comp Enable compressor shutdown for low superheat alarm line 1 NO NO YES Reset Type of alarm reset for low superheat alarm line 1 MANUAL 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 of DEA 0 999 alarm evaluation envelope line 1 Cae30 Numer of retries before Number of retries before screw compressors out of envelope alarm becomes alarm becomes manual 3 0 9 manual line 1 line 1 Alarm setpoint Discharge temperature alarm threshold 75 NE d Differential Discharge temperature alarm differential 9 M uw Caes Switch off compressor with M Enable shutdown of compressors with discharge temperature alarm DIS DIS EN Comp 1 off Enable shutdown of compressor 1 for compressor warning inverter line 1 NO NO YES Cae40 Reset Type of reset for compressor warning inverter line 1 Manual Manual AUTO Alarm delay Delay for compressor warning inverter line 1 0 S Q 999 ao Reciprocating Cafo2 Compressor type Type of compressors line 1 eating Scroll Screw Number of compressors Number of compressors line 1 2 3 5 1 6 12 Caf03 Cmp1 Enable compressors line 1 EN EN DIS R22 R134a R404A R407C R410A R507A R290 R600 P
48. UoM Values Bbb07 Compressor 1 Force to Manual request for continuous capacity for compressor 1 line 2 0 0 100 0 Bbb08 Sali Manual request for oil cooling pump line 2 0 0 0 0 100 0 Force to Bbb09 Ja Manual request for continuous capacity for fan 1 line 1 0 0 0 0 100 0 Bbb10 74 i Manual request for heat recovery pump line 1 0 0 0 0 100 0 Bbb11 ua ia Manual request for continuous capacity for fan 1 line 2 0 0 0 0 100 0 Bbb12 dali RR Manual request for heat recovery pump line 2 0 0 0 0 100 0 BcO1 Test DO Enable DO test mode NO gt NO YES Timeout Duration of test mode after last key pressed 10 min 0 500 BcO2 Test AO Enable AO test mode NO NO YES Timeout Duration of test mode after last key pressed 10 min 0 500 Bcal0 DO1 DO 1 test logic NO NO NC DO 1 test value OFF OFF ON D29 DO 29 test logic NO gt NO NC DO 29 test value OFF OFF ON Bcb10 AO AO 1 test value 0 0 0 0 100 0 Bcb12 AO6 AO 6 test value 00 00 1000 Tab 8 c Mask index Display description Description Default UoM Values Z loner es scr s The Os depend on the configuration selected the following are only examples See Appendix A 1 for the complete list and positi
49. by digital input or user interface The functionalities can be enabled and the relative parameters can be set from main menu branch Ef To be able to use the free inputs they must be configured as generic probes from A to E analog inputs and generic inputs from F to J digital inputs so a maximum of 5 analog and 5 digital inputs can be used After having configured the generic probes the variables associated with them can be used as regulation variables and the digital inputs as enabling variables Besides the probes and generic inputs internal variables in the pRack pR10OT software can be used which depend upon the configuration of the system Some examples for analog variables are Suction pressure e Gas cooler pressure Saturated suction temperature Gascooler temperature e Suction temperature Discharge temperature 96 of compressors active of fans active e Superheating pRack pR100T 0300022EN rel 1 0 21 01 2015 e Subcooling Liquid temperature requested compressors requested fans for digital variables High suction pressure alarm low suction pressure alarm High gas cooler pressure alarm Low gas cooler pressure alarm Sign of life Prevent active A unit of measure and description can be associated to each generic function The following shows the operation of 4 types of generic functions Stages pRack pR100T can manage up to 5 stage functions with either direct
50. can be set for the HPV valve setpoint below which the setpoint can never go regardless of the parameters entered in order to preserve the operation of the compressors e Setpoint distance alarm if the gas cooler pressure is too far from the calculated setpoint for too long threshold and delay can be set an alarm can be triggered 7 6 8 ControlofthereceiverpressurethroughtheHPVvalve If the pressure in the receiver goes below the minimum work pressure set the dynamic calculated setpoint for the HPV valve can be changed in order to increase the pressure in the receiver An offset in proportion to the distance from the minimum threshold is subtracted from the calculated setpoint so that the greater opening of the HPV valve contributes to increasing the pressure in the receiver The offset is directly proportional to the distance from the minimum work threshold as illustrated in the figure Setpoint HPV OFF MAX Prec min Fig 7 z On the other hand if the pressure in the receiver goes above the maximum work pressure set the dynamic calculated setpoint for the HPV CAREL valve can be changed in order to decrease the pressure in the receiver An offset in proportion to the distance from the maximum threshold is added to the calculated setpoint so that the lesser opening of the HPV valve contributes to decreasing the pressure in the receiver The offset is directly proportional to the distance from the maximum work thr
51. definition Eib06 Coefficient for determining the customized line Proportional gain for the proportional integral regulation of the HPV valve Integral time for the proportional integral regulation of the HPV valve Min opening of the HPV valve with the unit OFF Min opening of the HPV valve with the unit ON Opening of the HPV valve at start up during pre positioning Pre positioning duration Enabling of the filter action on the HPV valve setpoint Number of samples HPV valve safety position Offset to be applied to the external temperature in the event of gas cooler temperature probe error Regulation Eib07 Fib02 Eib03 Safeties EibO8 Fib10 Fib11 25 Eib12 HPV valve safety procedure enabling Receiver high pressure threshold Maximum allowed receiver pressure Maximum offset to add to the HPV setpoint when the receiver pressure exceeds the high pressure threshold Receiver low pressure threshold Minimum allowed receiver pressure Maximum offset to subtract from the HPV setpoint when the receiver pressure goes below the low pressure threshold Enable HPV valve closure when all compressors on line 1 are off Delay HPV valve closure when all compressors on line 1 are off Enable warning function when the gas cooler pressure is too far from the setpoint for the set time Difference between the gas cooler pressure and the setpoint which generates
52. digital input From supervisor Enable on off from supervisor line 2 NO na NO YES Due to black out Enable on off due to black out line 2 NO NO YES Ac07 UNIC Startup delay alls Unit startup delay after blackout line 2 0 S 0 999 blackout Tab 8 b Mask index Display description Description Default UoM__ Values lO Era De clit The I Os depend on the configuration selected the following are only examples See Appendix A 1 for the complete list and position of available I Os DI Alarm 1 compressor 1 DI position line 1 03 01 18 BT BTO Baa02 Status display only Status Alarm 1 compressor 1 DI line 1 Closed Open Logic Logic alarm 1 compressor 1 DI line 1 NC NC NO Function display only Alarm 1 compressor 1 function status line 1 Not active Active um Suction pressure probe position Line 1 BI m BI BIOT gt Suction pressure probe type Line 1 4 20MA 0 1V 0 10V 4 20mA 0 5V Bab01 display only Suction pressure value line 1 weil Max limit Suction pressure maximum value line 1 44 8 barg Mi Min limit Suction pressure minimum value line 1 0 0 barg n i Calibrat Suction pressure probe calibration Line 1 0 0 barg a E Line relay DO Compressor 1 line relay DO position and status On Off display line 1 n E 01 29 Part winding DO Star relay Compressor 1 part winding or star DO position and status On Off display x as 01 29 ee Bac02 DO line
53. enabling NO NO YES tank pressure e RE High tank pressure threshold 40 0 barg spa 2 Eib13 Max tank pressure Maximum tank pressure allowed 45 0 barg T a panini Maximum offset to add to the HPV setpoint when the tank pressure exceeds 10 0 barg the high pressure threshold Low tank pressure threshold Low tank pressure threshold 32 0 barg Da Eib14 Min tank pressure Minimum tank pressure allowed 27 0 barg Pre E Maximum offset to subtract from the HPV setpoint when the tank pressure s HPV set decr 10 0 barg E 9 goes below the low pressure threshold Eib15 Force close with comp OFF Enable HPV valve closure when all compressors on line 1 are off NO gt NO YES Delay clos with comp OFF __ HPV valve closure delay when all compressors on line 1 are off 10 S 0 999 Eib16 Requl in subcritical zone Enabling the requlation of the gas cooler in the subcritical zone NO NO YES Enable Enable warning function when the gas cooler pressure is too far from the NO o NO YES setpoint for the set time Eib17 Delta Difference between the gas cooler pressure and the setpoint which 30 0 baro u generates the warning Delay Delay time before generating the warning 30 S 0 999 Eib18 Enable RPRV valve mgmt___ Enable RPRV valve mgmt NO NO YES Eib19 si valc opening Minimum opening of the RPRV valve with the unit ON 10 0 0 0 100 0 During OFF Minimum opening of the RPRV valve with the unit OFF 10 0 0 0 100 0 pRack pR100T 0300022EN rel 1 0
54. 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 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 pRack pR100T 0300022EN rel 1 0 21 01 2015 66 CAREL 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 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 pR100T activates the heat recovery
55. function Active Not active Status Status of the heat recovery function line 1 on off Aaax display only Recovery temp Heat recovery temperature line 1 n VE us Modul valve Modulating heat recovery valve output status line 1 0 0 100 0 HR Prevent Prevention status through heat recovery line 1 on off Status Status of the heat recovery function line 2 on off Aaay display only Recovery temp Heat recovery temperature line 2 chi TT da Modul valve Modulating heat recovery valve output status line 2 0 0 100 0 HR Prevent Prevention status through heat recovery line 2 on off pRack pR100T 0300022EN rel 1 0 21 01 2015 36 CAREL Mask index Display description Description Default UoM Values Status Status of the ChillBooster device line 1 on off Ext Temp External temperature line 1 i Aaaz display only Thresh est t Threshold for activating the ChillBooster device line 1 a ga FTime10006 of minutes passed with fan at 100 number of minutes allowed line 0 999 0 999 Status Status of the ChillBooster device line 2 on off Ext Temp External temperature line 2 Nd Aaba display only Thresh est t Threshold for activating the ChillBooster device line 2 n it FTime1
56. inputs B5 B6 e Resistance to creeping current gt 250 V see note Colour grey RAL7035 Fast digital input ID1 Normal digital input ID2 Total 4 Tab 2 d 2 3 Electrical specifications Isolated power supply DC power supply 48 Vdc 36 V min to 72 V max Q Note multifunction analogue inputs these analogue inputs can AC power supply 24 Vac 10 to 15 96 50 60 Hz be programmed via software as digital inputs instead of analogue Maximum power input inputs All the digital inputs refer to GND MEDIUM ver P 6W P 8VA Imax 400mA LARGE ver P 11W P 14VA Imax 700mA Specifications of the fast digital input ID1 CPU H8SX 1651 32 bit 50 MHz as um FLASH program memory 242 Mbytes he fast digital i can be configured via software in two distinct SRAM data memory 512 Kbytes 16 bit operating modes as follows m EEPROM parameter data 13 Kbytes 32 kB first mode normal or standard digital input memory second mode fast digital input NAND FLASH memory 32 MByte Duration of working cycle 02 s typical applications of average complexity When configured as a fast digital input ID1 can measure a signal with a Clock Available as standard and integrated on main board maximum frequency of 2 KHz resolution 1 Hz This is made possible Battery specifications The battery used inside the pCO compact is a by the BIOS which provides the SW application with two variables that the count the number of times the
57. installed on a DIN rail To fasten the unit to the DIN rail 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 4 2 Power supply Power supply to 28 36 Vdc 10 20 or24 Vac 10 15 50 60 Hz the pRack pR100T S M L controller Maximum current P 15 W power supply Vdc with terminal P 40 VA Vac connected Tab 4 a Y Important power supplies other than those specified seriously damage the system a Class Il safety transformer must be used in the installation to supply just one pRack pR100T controller rating 30 VA for pRack Compact and 50 VA for pRack S M L XL e the power supply to the pRack pR100T controller and terminal or pRack pR100T controllers and terminals should be separated from the power supply to the other electrical devices contactors and other electromechanical components inside the electrical panel e if the power transformer secondary is earthed check that the earth wire corresponds to the wire that runs to the controller and enters terminal GO This applies to all the devices connected to the pRack pR100T e a yellow LED indicates that power is connected to the pRack pR100T pRack pR100T 0300022EN rel 1 0 21 01 2015 CAREL 5 START UP 5 1 Startingthe first time
58. less than f iii Minimum time for fans at Maximum capacity before ChillBooster activation 5 ume 0 300 gab02 line 1 Ext tempThresh External temperature threshold for ChillBooster activation line 1 30 0 C A T n Sanitary proc Enable sanitary procedure line 1 Disab Disab Enable Egab03 Start Sanitary procedure starting time line 1 00 00 Duration Sanitary procedure duration line 1 0 min 0 30 Ext tempThresh External temperature threshold for sanitary procedure activation line 1 5 0 C cil 47 pRack pR100T 0300022EN rel 1 0 21 01 2015 CAREL Mask index Display description Description Default UoM Values Egab04 E p Maximum ChillBooster operation time line 1 200 h 0 999 Maint time reset Maximum ChillBooster operation time line 1 NO NO YES EhbO1 See E puse Enable simultaneous compressor startup inhibition NO NO YES Delay Delay between compressor starts in different lines 0 S 0 999 Ehb03 neu EMEDUNDRON Enable line 2 compressor Off forcing due to line 1 compressor fault NO NO YES Delay Delay for line 2 compressor Off forcing due to line 1 compressor fault 0 S 0 999 Activ L1 comps for L2 activ Enable line 1 compressor On forcing due to line 2 compressor On NO
59. line 1 01 229 899 Seas Status display only Compressor 6 economizer valve DO status line 1 Closed Open Logic Compressor 6 economizer valve DO logic line 1 NO NC NO Function display only Compressor 6 economizer valve function status line 1 Not active Active Economizer Enable economizer function line 1 NO NO YES Ecab04 Comp Power Thresh Capacity percentage threshold for economizer activation line 1 0 0 100 Cond Temp Thresh Condensing temperature threshold for economizer activation line 1 0 0 C ns 999 9 999 9 Discharge Temp Thresh Discharge temperature threshold for economizer activation line 1 0 0 C 999 9 999 9 Economizer Enable economizer function for screw compressor 1 NO NO YES l Setpoint for the management of the economizer with discharge temperature a Setpoint ud sd Ecab05 for screw compressor 1 Differential for the management of the economizer with discharge us a Differential a ex temperature for screw compressor 1 45 pRack pR100T 0300022EN rel 1 0 21 01 2015 CAREL Mask index Display description Description Default UoM Values Min Activ Power Minimum screw compressor 1 capacity for economizer activation 75 0 25 50 75 1
60. off optional e Valve closure with compressors off if all compressors in the medium temperature unit are turned off the RPRV valve can be positioned at the minimum opening value in the ON status which can be set by a parameter When a compressor is restarted the valve restarts the regulation with the pre positioning procedure described in the previous point e Minimum and maximum opening values the minimum opening value in Off status and in ON status can be differentiated by keypad digital input or supervisor while the maximum opening value is unique e Maximum percentage variation the movement of the valve cannot exceed the maximum set percentage variation per second e Maximum receiver pressure a maximum value can be set for the receiver pressure above which an alarm is triggered and unit operation can be blocked The block is optional and can be enabled by a parameter pRack pR100T 0300022EN rel 1 0 21 01 2015 7 7 2 Summary of inputs outputs and RPRV valve parameters The following is a summary table of the inputs outputs used and the parameters with indications of the related configuration screens For details refer to Chapter 6 and Appendix A 1 Summary of inputs outputs and RPRV valve parameters Mask Bab66 Eia01 Description RPRV receiver pressure probe RPRV valve alarm RPRV valve output Analog inputs Digital inputs ___Baadf Eia05 Analog outputs _ Bad15 Eia07 Digital outputs _ Param
61. serial options Item Code Description Modbus CAREL RS485 PCOSO04850 opto isolated RS485 serial Ethernet BACnet SNMP _ PCO10GOWBO Ethernet serial Modbus BACnet RS485 PCO10GOBAO BACnet MS TP 485 serial Tab 1 e pRack pR100T 0300022EN rel 1 0 21 01 2015 CAREL 1 4 Connectors 1 6 Maintenance Electrical specifications of the plug in connectors used Step 5 08 mmy Rated voltage 250 V Rated current 12 A Cable size 0 25 mm A 25 mm AWG 24 to 12 Stripping length 7 mmy Screw thread size M3 Tightening torque 0 5 0 6 Nm Disconnect the device turn OFF before accessing inside parts or Step 3 81 mm Rated voltage 160 V Rated current 8 A Cable size 0 25 during maintenance mm 1 5 mm AWG 28 to 16 all service and or maintenance operations must be performed by Stripping length 7 mm Screw thread size M2 Tightening torque 0 22 specialist and qualified personnel in accordance with the safety 0 25 Nm standards and legislation in force 1 5 Installation warnings operating environments and connections Avoid assembling the boards in environments with the following characteristics relative humidity greater than 90 strong vibrations or knocks exposure to continuous water sprays exposure to corrosive or pollutant gases e g sulphur or ammonia fumes saline mist smoke so as to avoid corrosion and oxidisation strong magnetic and or radi
62. temperature probe position compressor 1 line 2 B1 B1 B10 i NIC PT1000 0 1 V 0 10 V Discharge temperature probe type compressor 1 line 2 4 20 mA 4 20 mA 0 5 V HTNTC Ecba01 display only Discharge temperature value compressor 1 line 2 ud Max limit Discharge temperature maximum value compressor 1 line 2 30 0 barg e ds Min limit Discharge temperature minimum value compressor 1 line 2 0 0 barg zx Calibration Discharge temperature probe calibration compressor 1 line 2 0 0 barg Economizer Enable economizer function line 2 NO NO YES Ecbb04 Comp Power Thresh Capacity percentage threshold for economizer activation line 2 0 06 0 100 Cond Temp Thresh Condensing temperature threshold for economizer activation line 2 0 0 C 999 9 999 9 Discharge Temp Thresh Discharge temperature threshold for economizer activation line 2 0 0 C 999 9 20995 B1 Discharge temperature probe position compressor 1 line 2 B1 B10 NTC PT1000 0 1 V 0 10 V Discharge temperature probe type compressor 1 line 2 4 20MA 4 20 mA 0 5 V HTNTC Edba01 display only Discharge temperature value compressor 1 line 2 2217 Max limit Discharg
63. the various factors that influence the final configuration is completed the pRack pR100T software verifies if the pLAN configuration is exact and shows the user interface for configuring the parameters that must be manually performed by the user Attention this configuration method is recommended only for expert users since all system parameters must be manually configured pRack pR100T 0300022EN rel 1 0 21 01 2015 14 5 3 1 Associating the inputs and outputs When using pre configurations and the wizard pRack pR100T 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 are described below Digital outputs pRack pR100T assigns in order Compressor outputs Fanoutputs Global alarm Digital inputs pRack pR100T assigns in order High and low pressure switches HP and LP Compressor alarms e Fan alarms Note pRack pR100T 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 pR100T assigns in order Pressure or temperature control probes for 1 or 2 lines according to the settings made The typ
64. the warning Delay time before generating the warning Maximum opening of the HPV valve Maximum variation per second allowed for the HPV valve output Minimum HPV valve regulation setpoint Enable low temp control lower proportional zone Eib13 Fib14 Safeties Eib15 Eib17 Eib32 Eib28 Tab 7 e 7 7 RPRV valve management Management of the RPRV valve which is a PI regulation is to maintain the pressure inside the CO receiver equal to the setpoint The RPRV valve can be managed directly by pRack pR100T with built in driver PRK30TD or with external EVD EVO driver Both solutions are compatible with the majority of valves available on the market Direct control via serial connection is enabled under EEVS electronic expansion valve settings accessible from the main menu branch E i c The configuration parameters on the other hand are accessible from the main menu branch E i 7 7 1 RPRV valve accessory functions RPRV valve management includes some accessory functions e Pre positioning entering the unit ON status the RPRV valve remains at a fixed position that can be set by a parameter for a fixed time also settable by a parameter in order to be able to quickly raise the pressure in the tank This procedure is reactivated whenever the unit goes into the OFF status or the RPRV valve moves into the minimum position due to all of the compressors being turned
65. to apply to the calculation of the pressure OPTIMIZ B OPTIMIZ setpoint CUSTOM MA ry Vale opening Minimum opening of the HPV valve with the unit OFF 0 0 0 100 0 when OFF Fib02 During ON Minimum opening of the HPV valve with the unit ON 0 06 0 0 100 0 Max HPV valve opening Maximum opening of the HPV valve 0 0 0 100 0 Max delta Maximum variation per second allowed for the HPV valve output 0 0 0 100 0 Eib03 Pre positioning Opening of the HPV valve at start up during pre positioning 0 0 0 100 0 Prepos time Pre positioning duration 0 S 0 9999 Eib04 Calculation algorithm graph _ P100 P oon upper pressure limit 109 0 barg p Eib05 Definition Pmax P pressure for defining the upper proportional zone 104 0 barg P optimal pressure calculated at the passage temperature between the su of the points on Pcritic we i N 76 8 barg 55 the graph see intermediate zone and transcritical zone nd T12 T limit temperature between the transcritical zone and intermediate zone 31 0 C mask Eib04 123 T temperature limit between the intermediate zone and subcritical zone 20 0 C Tmin T temperature for defining the lower proportional zone 6 0 C Eib06 Definition T10096 T 0 temperature for defining the complete opening zone of the valve 10 0 C of the points on Delta Subcooling for optimized regulation 307 55 the graph see Coeff 1 Coefficient for determinin i i l g the custom
66. to the control set point The figure shows an example of setting the threshold to relative M 17 Pressure Differential Relative threshold Setpoint Alarm Fig 9 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 9 3 3 High pressure prevention pRack pR100T can manage 3 types of high condensing pressure prevention actions involving overriding the compressors and fans activating heat recovery 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
67. use the 5 VREF maximum current available Imax 60 mA protected against short circuits Specifications Time constant 0 5 S Precision 0 3 96 of full scale Classification of measuring circuits Category 1 IEC EN 61010 1 Tab 2 c 9 pRack pR100T 0300022EN rel 1 0 21 01 2015 2 7 Digital outputs pRack pR100T based on pCO compact TYPE B hardware has 6 digital outputs with electromechanical relays To simplify assembly the common terminals of some relays have been grouped together based on the insulation distance Within a group the outputs have single insulation between them and thus must be powered at the same voltage generally 24Vac or 110 230Vac Between the groups there is reinforced insulation thus the groups can be powered at different voltages CAREL Output technical specification Insulation group Connector Digital output SPDT relay 1 J3 1 UL873 2 5 A res 2 A FLA 12 A LRA 2 J10 1 250 Vac C300 pilot duty 30 000 cycles EN60730 1 2 A res 2 A inductive cos phi 0 6 2 2 A 100 000 cycles rel SPST 3 J11 2 UL873 1 A res 1 A FLA 6 A LRA 250 Vac D300 pilot duty 30 000 cycles 4 Jl 2 2 EN60730 1 1 A res 1 A inductive cos phi 0 6 1 1 A 100 000 cycles Rel Power MOSFET Photovoltaic 1 J3 Operation voltage 24 Vac Vdc 2 J10 a Maximum power 10 W 3 J11 3 4 J12 Outputs total 6 Tab 2 9 2
68. wi Aasi dicplavonh Sat Temp Suction saturated temperature line 2 p pray OMY ActualSet Actual setpoint for pressure regulation with compensations applied line 2 Rie Differen Regulation differential for pressure regulation line 2 Pressure Suction pressure line 2 bo PE uu Sat Temp Suction saturated temperature line 2 se xd Aa32 display only henge Actual setpoint for temperature regulation with compensations applied line 2 Differen Requlation differential for temperature regulation line 2 pRack pR100T 0300022EN rel 1 0 21 01 2015 34 CAREL Mask index Display description Description Default UoM Values Act Req Power delivered Power requested per suction line line 2 0 0 100 100 Stop mE nensi Functioning Reg Status Regulation status according to the type of regulation set line 2 ANNIS Timings A ispl a33 display only any Alarms Proportional Band Reg Type Compressor regulation type line 2 Dead Zone Setpoint Actual suction setpoint with compensations applied line 2 PN a GCOT COZ 612 Time remaining for next compressor startup line 2 se S 0 32000 Power delivered from compressor 1 from line 2 a to the right of the value Aa34 display only C01 means that some form of compressor power forcing is active e g safety times 0 100 alarms startup procedure CI 2 Power deli
69. 0 Maximum time to decrease capacity request to 0 dead zone regulation 180 0 9999 max time condensing line 1 i Dac Not available Dad01 sla conga SR Enable setpoint compensation condensing line 1 NO NO YES compensation Dad02 Winter offset Offset applied for the Winter period 0 0 9999 9999 Closing offset Offset applied for closing period 0 0 999 9 999 9 Dado3 Enable setpoint Enable scheduler setpoint compensation NO NO YES compensation by scheduler condensing line 1 Enabling and definition of time band 1 start hour and minute end hour and LUN df minute condensing line 1 i TB4 gt n Enabling and definition of time band 4 start hour and minute end hour and Dado4 minute condensing line 1 SAVE CHANGES Change Time band change action LOAD PREVIOUS CLEAR ALL MONDAY SUNDAY MON FRI Copy to Copy settings to other days MON SAT SAT amp SUN ALL Dad05 ca gascopler Enable floating gas cooler setpoint condensing line 1 NO NO YES Offset for external temp Setpoint variation for floating gas cooler setpoint condensing line 1 0 0 99 99 Page a si Enable floating gas cooler setpoint by digital input NO NO YES Dad07 nd ponr E digia Enable setpoint compensation by digital input suct cond line 1 NO NO YES Dae01 is Type of gas cooler high pressure alarm threshold line 1 ABSOLUTE ABSOLUTE RELATIVE Delay Gas cooler high pressu
70. 0 Gas cooler backup pressure probe line 1 S Bab61 Daa43 Gas cooler output temperature probe line 1 Bab62 Daa44 Gas cooler temperature backup probe Bab11 Daa41 Discharge temperature probe line 1 Bab12 Liquid temperature probe line 1 Bab13 Eeaa05 Heat recovery output temperature probe line 1 Bab15 Daa20 External temperature probe line 1 Bab16 Room temperature probe line 1 Bab17 Eaaa04 Oil temperature probe line 1 Bab29 Ecaa01 Edaa01 Discharge temperature probe compressor 1 line 1 Bab30 Ecaa02 Edaa02 Discharge temperature probe compressor 2 line 1 4 Bab31 Ecaa03 Edaa03 Discharge temperature probe compressor 3 line 1 5 Bab32 Ecaa04 Edaa04 Discharge temperature probe compressor 4 line 1 t Bab33 Ecaa05 Edaa05 Discharge temperature probe compressor 5 line 1 2 Bab34 Ecaa06 Edaa06 Discharge temperature probe compressor 6 line 1 E Bab41 Eaaa05 Oil temperature probe compressor 1 line 1 5 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 Bab63 Oil receiver differential pressure probe line 1 Bab66 Eia01 RPRV receiver pressure probe Bab67 Eia02 HPV Feedback not used J Bab68 Eia03 RPRV Feedback not used 3 Eeaa06 HPV setpoint compensation and floating condensing with heat recovery Bab05 Caal Suction pressur
71. 0 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 Stage in high pressure Baadc Fan inverter warning line 1 Baa57 Daa50 Baadf Daa51 Common high pressure switch line 1 High pressure prevention line 1 Baaau Daa01 Fan circuit breaker 1 line 1 Baaav Daa02 Fan circuit breaker 2 line 1 Baaaw Daa03 Fan circuit breaker 3 line 1 Baaax Daa04 Fan circuit breaker 4 line 1 Baaay Daa05 Fan circuit breaker 5 line 1 Baaaz Daa06 Fan circuit breaker 6 line 1 Baaba Daa07 Fan circuit breaker 7 line 1 Baabb Daa08 Fan circuit breaker 8 line 1 Baabc Daa09 Fan circuit breaker 9 line 1 Baabd Daa10 Fan circuit breaker 10 line 1 Baabe Daa11 Fan circuit breaker 11 line 1 Baabf Daa12 Fan circuit breaker 12 line 1 Baabg Daa13 Fan circuit breaker 13 line 1 Baabh Daa14 Baabi Daa15 Fan circuit breaker 14 line 1 Fan circuit breaker 15 line 1 Baabj Daa16 Fan circuit breaker 16 line 1 Baabk Daa17 Common fan circuit breaker line 1 Other functions Baabl Heat recovery line 1 Baacn pRack automatic or manual operation status Baacx Egaa01 ChillBooster fault line 1 Baacl Caa00 Dad08 Setpoint compensation line 1 Daa52
72. 00 Coni Pastori Enable economizer valve management with condensing temperature for DIS ni DIS EN screw compressor 1 Ecab06 His Setpoint for the management of the economizer with condensing 60 0 C PE temperature for screw compressor 1 Differen Differential for the management of the economizer with condensing 50 CHE temperature for screw compressor 1 ERE Discharge temperature probe position compressor 1 line 1 BI me B1 B10 NTC PT1000 0 1 V 0 10 V Discharge temperature probe type compressor 1 line 1 4 20MA 4 20 mA 0 5 V HTNTC Edaa01 display only Discharge temperature value compressor 1 line 1 E ud Max limit Discharge temperature maximum value compressor 1 line 1 30 0 barg m d Min limit Discharge temperature minimum value compressor 1 line 1 0 0 barg d Calibration Discharge temperature probe calibration compressor 1 line 1 0 0 barg p DO Compressor 6 liquid injection valve DO position line 1 01 29 Edaa12 Status display only Compressor 6 injection valve DO status line 1 Closed Open Logic Compressor 6 injection valve DO logic line 1 NO NC NO Function display only Compressor 6 injection valve function status line 1 Not active Active Liquid inj Enable liquid injection function line 1 DIS DIS EN Edab01 Edab03 Threshold Liquid injection setpoint line 1 70 0 C eu Differential Liquid injection differential line 1 5 0 E 62 DI Heat r
73. 0006 n of minutes passed with fan at 100 number of minutes allowed line 0 999 0 999 Cond Temp Condensing saturated temperature line 1 TE a Aabb display LiquidTemp Liquid temperature line 1 sai only Subcool Subcooling line 1 e Nas Status Status of the subcooling function line 1 Open Closed Cond Temp Condensing saturated temperature line 2 iud l LiquidTemp Liquid temperature line 2 ole mabe talspiey enh Subcool Subcooling line 2 E Status Status of the subcooling function line 2 Open Closed Usersat Setpoint set by the user for suction regulation under pressure proportional i regulation line 1 Ab01 display only Actual setpoint for suction regulation under pressure proportional regulation ActualSetp N gt m ad with compensations applied line 1 Diff Suction regulation under pressure differential proportional regulation line 1 pili Usersetp Setpoint set by the user for suction regulation under pressure proportional A regulation line 1 ActualSetp Actual setpoint for suction regulation under pressure proportional regulation 9 with compensations applied line 1 Ab02 display only Dead zone Dead zone for suction requlation under pressure line 1 5 Increase differential for suction regulation under pressure regulation in dead n Incr Diff A zone line 1 Decr Diff Decrease differential for suction regulation under pressure regulation in d
74. 1 Delta relay DO Compressor 1 delta DO position and status On Off display line 1 T 01 29 Logic Logic for compressor 1 power supply DO line 1 NO NC NO DO Compressor 1 unloader 1 DO position line 1 i 01 29 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 gt NC NO Function display only Compressor 1 unloader 1 function status line 1 Not active Active a AO Compressor modulating device AO position line 1 0 01 06 Status display only Modulating device output value line 1 0 0 0 100 0 Suction L1 Suction line 1 in manual mode DIS DIS AB Suction L2 Suction line 2 in manual mode DIS DIS AB Bb01 Condenser L1 Condenser line 1 in manual mode DIS DIS AB Condenser L2 Condenser line 2 in manual mode DIS DIS AB Timeout Manual mode duration after last key pressed 10 min 0 500 Compressor 1 j OFF ON 3 STAGES Bba02 osti Manual stages request for compressor 1 line 1 OFF 2 STAGES 4 STAGES Compressor 12 a B OFF ON 3 STAGES Bbal6 Liu Manual stages request for compressor 12 line 1 OFF 2 STAGES 4 STAGES AMORI Manual operation status for oil cooling pump 1 line 1 OFF OFF ON Bba17 mse O E LM Manual operation status for oil cooling pump 2 line 1 OFF OFF ON Bba18 i Manual operation status for oil cooling fan 1 line 1 OFF OFF ON
75. 20 Regulation request HEHEHE Step compressors capacity Inverter capacity a Total capacity Fig 7 m pRack pR100T 0300022EN rel 1 0 21 01 2015 20 CAREL Example 3 range of modulating device capacity variation in 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 Actual capacity kW Regulation request 3 333 Step compressors capacity em em inverter capacity a Total capacity Fig 7 n 7 4 4 Starting pRack pR100T can manage different types of compressor starting Direct e Part winding e Star delta The type of starting can be selected and the related parameters set in main menu branch C a f C b f For part winding starting the delay in activating the digital output that controls the second winding needs to be set Compressor request t Line t Part winding Delay gt Fig 7 0 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 Compressor request t Line t Part winding t Delta Star line delay r T tart delta delay Fig 7 p 7 4 5 Safety times pRack pR100T can manage common safety times for each compressor Minimum on time Minimum off time Minimum tim
76. 2015 52 CAREL Mask index Display description Description Default UoM Values C01 Size for compressor 1 or presence of inverter line 1 SI S1 S4 INV 1562 ani um C12 Size for compressor 6 line 1 S1 51 54 Requlation Compressor control by temperature or pressure line 1 PRESSURE PRESSURE TEMPERATURE Units of measure Units of measure line 1 barg m R22 R134a R404A R407C Beo R410A R507A R290 R600 Refrigerant Type of refrigerant suction line 1 R744 A N L R417A R422D R413A R422A R423A R407A R427A R245Fa R407F R32 1681 Regulation type Compressor regulation type line 1 DEAD ZONE BAND Enable integral time action __ Enable integral time for proportional regulation of suction line line 2 NO NO YES Ib82 Setpoint Setpoint without compensation suction line 2 3 5 barg OEN as Differential Differential suction line 2 0 3 barg Ib90 Dedicated pRack board for Suction and condensing lines on different boards that is condensing line on NO De NO YES cond line dedicated board Ib91 Number of fans Number of fans line 1 3 0 16 NONE 154 Modulate speed device Fan modulating device line 1 NONE F INVERTER PHASE CUT OFF CONTROL ib93 Regulation Fan regulation by pressure or temperature line 1 PRESSURE PRESSURE TEMPERATURE Units of measure Units of measure line 1 b
77. 4 tr d da 0 0 Lal ao etpoan Comp Ou L1 L to schon spont path reg 595 9 5 T3 wu TF Pump Setpoint HAY L1 LI Heat rec m 1 setpoint ice P contr a0 376 7 550 55 0 al 55 6 miPump Senor HRJ LI Li Heat reclami 2 serpoint Ex P contr 55 0 54 0 Gai Cooler Byp Seppomt _ I Heat recta cooker bypass valer Ou 1276 55 0 55 0 La 55 0 SH Concas Setpoint SHP Set Heat roim Corton PID 09 59 rh d 5 5 0 fi Comp Fiow Mux Setpomnt LJ L2 Float sucion aaa setpeant Erh M7 6 5 0 0 w a6 Como Fox Man c E L2 F tice manum sei polini 2768 1276 7 aes Lad oo firm Feat Bmw Cabrerant 4 01 gt Prin mirti monia am cetrarani trama TYPE 7 am nd na nn Fig 11 h 1 Double clickonthecolumn marked letto read Awindow will appear in which you can enter the new value for the parameter Setpoint Comp L1 Fig 11 i 2 Enterthenewvalue e g 3 andclickOK Thenew value will appearin the column marked scritto written To write the parameter to the pRack controller right click and select scrivi selezionate write selected The new value will appear in the column marked scritto written meaning that the parameter has been written to the controller Default Letto Scritto 120 120 wW 120 1 1 lt d 1 5 0 50 w 50 60 60 v 60 3 0 30 w 30 D 0 wv 100 100 w 100 120 120 wW 120 4 0 40 w 4 0 1 0 1 0 wW 10 20 20 ww 20 0 3 03 w 03 0 5 05 w os 1 1 v 1 0 0 w 0 1 Z wv 3 Fig 11 j TU Click on Salva Save to gener
78. A calibration 0 0 barg EN DI Generic digital input F DI position zm 01 18 B1 B10 Eeaa02 Status Generic digital input F DI status Closed Open Logic Generic digital input F DI logic NC NC NO Function Generic digital input F function status Not active Active DO Generic stage 1 DO position 01 29 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 function status Not active Active Efe29 Modulating1 Generic modulating 1 AO position 0 01 06 Status display only Generic modulating 1 function output value 0 06 0 0 100 0 DI ChillBooster fault DI position line 1 01 18 B1 B10 Egaa01 Status ChillBooster fault DI status line 1 Closed Open Logic ChillBooster fault DI logic line 1 NC NC NO Function ChillBooster fault function status line 1 Not active Active DO ChillBooster fault DO position line 1 01 29 Egaa02 Status display only ChillBooster fault DO status line 1 Closed Open Logic ChillBooster fault DO logic line 1 NO sas NC NO Function display only ChillBooster function status line 1 Not active Active Device present Enable ChillBooster function line 1 NO MEE NO YES ESI Deactivation heran Fan capacity under which the ChillBooster is deactivated line 1 95 06 0 100 power
79. Alarm 5 compressor 3 line 2 Man Autom Config Config Shutdown compressor 3 line 2 ALC71 Alarm 6 compressor 3 line 2 Man Autom Config Config Shutdown compressor 3 line 2 ALC72 _ Alarm 7 compressor 3 line 2 Man Autom Config Config Shutdown compressor 3 line 2 ALC73 _ Alarm 1 compressor 4 line 2 Man Autom Config Config Shutdown compressor 4 line 2 ALC74 Alarm 2 compressor 4 line 2 Man Autom Config Config Shutdown compressor 4 line 2 ALC75 Alarm 3 compressor 4 line 2 Man Autom Config Config Shutdown compressor 4 line 2 ALC76 Alarm 4 compressor 4 line 2 Man Autom Config Config Shutdown compressor 4 line 2 ALC77 Alarm 5 compressor 4 line 2 Man Autom Config Config Shutdown compressor 4 line 2 ALC78 Alarm 6 compressor 4 line 2 Man Autom Config Config Shutdown compressor 4 line 2 ALC79 _ Alarm 7 compressor 4 line 2 Man Autom Config Config Shutdown compressor 4 line 2 ALC80 Alarm 1 compressor 5 line 2 Man Autom Config Config Shutdown compressor 5 line 2 ALC81 Alarm 2 compressor 5 line 2 Man Autom Config Config Shutdown compressor 5 line 2 ALC82 Alarm 3 compressor 5 line 2 Man Autom Config Config Shutdown compressor 5 line 2 ALC83 Alarm 4 compressor 5 line 2 Man Autom Config Config Shutdown compressor 5 line 2 ALC84 Alarm 5 compressor 5 line 2 Man Autom Config Config Shutdown compressor 5 line 2 ALC85 Alarm 6 compressor 5 line 2 Ma
80. Anti noise line 1 Daa53 Split condenser line 1 57 pRack pR100T 0300022EN rel 1 0 21 01 2015 CAREL Digital inputs Mask index Description Channel Logic Notes Eeaa02 Heat recovery activation line 1 Baade Eia04 HPV alarm Baadf Eia05 RPRV alarm 6 Eaaa55 Maximum receiver oil level line 1 E S Eaaa56 Minimum receiver oil level line 1 2 Eaaa57 Oil level compressor 1 line 1 Eaaa58 Oil level compressor 2 line 1 E a 5 Eaaa59 Oil level compressor 3 line 1 Eaaa60 Oil level compressor 4 line 1 Eaaa6 Oil level compressor 5 line 1 Eaaa62 Oil level compressor 6 line 1 Ac08 Baacy ON OFF unit line 2 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 Alarm 1 compressor 1 line 2 Baa62 Cba02 Alarm 2 compressor 1 line 2 Baa63 Cba03 Baa64 Cba04 Alarm 3 compressor 1 line 2 Alarm 4 compressor 1 line 2 Baa65 Cba05 Alarm 5 compressor 1 line 2 Baa66 Cba06 Alarm 6 compressor 1 line 2 Baa67 Cba07 Alarm 7 compressor 1 line 2 Baa68 Cba15 Alarm 1 compressor 2 line 2 Baa69 Cba16 Alarm 2 compressor 2 line 2 Baa70 Cba1 7 Alarm 3 compressor 2 line 2 Baa71 Cba18 Baa72 Cba19 Alarm 4 compressor 2 line 2 Alarm 5 compressor 2 line 2 Baa73 Cba20 Alarm 6
81. C37 _ Alarm 2 compressor 6 Man Autom Config Config Shutdown compressor 6 ALC38 _ Alarm 3 compressor 6 Man Autom Config Config Shutdown compressor 6 ALC39 _ Alarm 4 compressor 6 Man Autom Config Config Shutdown compressor 6 ALC40 _ Alarm 5 compressor 6 Man Autom Config Config Shutdown compressor 6 ALC41 _ Alarm 6 compressor 6 Man Autom Config Config Shutdown compressor 6 ALC42 Alarm 7 compressor 6 Man Autom Config Config Shutdown compressor 6 ALC43 _ Alarm 1 compressor 7 Man Autom Config Config Shutdown compressor 7 ALC44 Alarm 2 compressor 7 Man Autom Config Config Shutdown compressor 7 ALC45 _ Alarm 1 compressor 8 Man Autom Config Config Shutdown compressor 8 ALCA46 Alarm 2 compressor 8 Man Autom Config Config Shutdown compressor 8 ALC47 Alarm 1 compressor 9 Man Autom Config Config Shutdown compressor 9 ALCA8 Alarm 2 compressor 9 Man Autom Config Config Shutdown compressor 9 ALCA49 Alarm 1 compressor 10 Man Autom Config Config Shutdown compressor 10 ALCSO _ Alarm 1 compressor 11 Man Autom Config Config Shutdown compressor 11 ALC51 Alarm 1 compressor 12 Man Autom Config Config Shutdown compressor 12 ALC52 Alarm 1 compressor 1 line 2 Man Autom Config Config Shutdown compressor 1 line 2 ALC53 Alarm 2 compressor 1 line 2 Man Autom Config Config Shutdown compressor 1 line 2 ALC54 Alarm 3 compressor 1 line 2 Man Autom Config Config Shutdo
82. Cba22 Partwinding Star relay compressor 2 line 2 e 8 Delta relay compressor 2 line 2 xa 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 Equalization valve compressor 1 line 2 Line relay compressor 3 line 2 Bac86 Cba35 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 pRack pR100T 0300022EN rel 1 0 21 01 2015 60 CAREL Digital outputs Mask index Description Channel Logic Notes Bac89 Cba38 Valve 3 compressor 3 line 2 Bac91 Cba39 Equalization valve compressor 3 line 2 Line relay compressor 4 line 2 Bac92 Cba47 Partwinding Star relay compressor 4 line 2 Delta relay compressor 4 line 2 Bac94 Cba48 Valve 1 compressor 4 line 2 Bac95 Cba49 Valve 2 compressor 4 line 2 Bac96 Cba50 Valve 3 compressor 4 line 2 Bac98 Cba51 Equalization valve compressor 4 line 2 Line relay compressor 5 line 2 Bacaa Cba60 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 com
83. Config Shutdown compressor 1 ALCO5 Alarm 5 compressor 1 Man Autom Config Config Shutdown compressor 1 ALCO6 Alarm 6 compressor 1 Man Autom Config Config Shutdown compressor 1 ALCO7 Alarm 7 compressor 1 Man Autom Config Config Shutdown compressor 1 ALCO9 Alarm 2 compressor 2 Man Autom Config Config Shutdown compressor 2 ALC10 Alarm 3 compressor 2 Man Autom Config Config Shutdown compressor 2 ALCT1 Alarm 4 compressor 2 Man Autom Config Config Shutdown compressor 2 ALC12 Alarm 5 compressor 2 Man Autom Config Config Shutdown compressor 2 ALC13 Alarm 6 compressor 2 Man Autom Config Config Shutdown compressor 2 ALC14 Alarm 7 compressor 2 Man Autom Config Config Shutdown compressor 2 ALC15 _ Alarm 1 compressor 3 Man Autom Config Config Shutdown compressor 3 ALC16 _ Alarm 2 compressor 3 Man Autom Config Config Shutdown compressor 3 pRack pR100T 0300022EN rel 1 0 21 01 2015 54 CAREL Code Description Reset Delay Alarm relay Action ALCT17 _ Alarm 3 compressor 3 Man Autom Config Config Shutdown compressor 3 ALC18 Alarm 4 compressor 3 Man Autom Config Config
84. EER G 31 31111111 15 277 1up pm 2 BEHE dar aaa PPP LEP LL ela EGSSECS SESE E es 011 a st es BEIERIFTFCELL BEE SEMIMFTECTILEEL PT CELERE air auem ETO de med 1 GRZ resta ee Von pun betes cin 8115751 EFE BFTF R REFEFIVIELL BEE ru gnata i 4 eee eee BEMETT BEY Cit as FA L1 B zi Ta u d in 112 E di al Moo Cilicia Pam at bian Dede Cara pe re orn rm Fe Tarn ari a ee pre Sn Lere Fig 11 9 69 pRack pR100T 0300022EN rel 1 0 21 01 2015 11 2 3 Changing a parameter Select the parameter category and then the parameter that you want to edit The parameter e g recovery recovery_type will be highlighted in blue SO Sepa L2 el Septet bre 7 D 12767 60 0 0 wt Vu m OM Seppomt LI i Setpoint Line 1 6 0 1276 7 6 0 0 0 uf ao Pa Comp Spont 7 4 v79 70 0 20 0 wr a m Custcm _ Sei paar PID SR Hes ecm Compm PID 560 9 qu 4 Io zu a 70 0 Custom Set Iri Set Hes recalum _Curtom_ PID 399 9 3 5 20 0 20 0 Ld 70 0 u Ma sahen HPV point Li Madmus safety piponi for HPV wale X176 H 3276 7 Gh 0 0 iu ila malan Max Sapam LI LI corner de Terit Arn Ll n ww eo miFan Mam Sepa L2 L2 Minimun Condensing setpoint 72768 1276 7 aa 0 0 Ld LE Fan Min Setpoint E1 LI Ce i i 3376 B 32767 ele oo a oo milan Mun _ Set peat LZ Msrimigm concerne setneint rA 176 7 6 0 DA i a0 Setposni_Fan_L3 setpoint 933 9 6 0 0 0 Ld oo nt Fan Li Li Gas cocirar
85. I I I I I I I I I I I Min request actlVatioNs 4tr s 2322590F ee 50222520 la eae s Heat E E recovery IUS HN request 11 i i i i i i i i Heat 0 recover Pressure y barg i status 85 0 barg Max HPV i set point heat A eed te eee ee 2 recovery ON i i i i I I I I 75 0 barg Min HPV i i setpoint heat 4 ML JE EE recovery ON 400 barg Min HPV set point heat siii ARR AR ig aie niin recovery OFF i i Min I I I set point Time HPV Different activation s delays are not considered in this graph Fig 7 an 29 When acting on the on the Gas Cooler set point the Gas Cooler fan temperature set point can be increased gradually to the maximum limit This limit is equal to the maximum allowable set point screen Dab06 when operating in simultaneous mode or the value set on screen Eeab29 in sequential mode In simultaneous mode the increase will start at the same time as the action on the HPV valve set point while in sequential mode the increase will start after having exceeded a settable heat demand percentage limit threshold Eeab29 If the floating condensing function is active branch D a d this can be disabled when heat recovery is active Eeab04 however if it is enabled while heat recovery is active the Gas Cooler set point increase can be added directly to the outside temperature
86. NE manual 55 Not present Shutdown unit l Replace the ALW22 Battery discharged battery Not present Not present No effect Tab 8 k pRack pR100T 0300022EN rel 1 0 21 01 2015 56 CAREL 8 3 I O Table The list of pRack pR100T inputs and outputs is reported below Digital inputs Mask index Description Channel Logic Notes Ac05 Baack ON OFF unit line 1 Line 1 Suction Baa56 Caaah Baada Caa14 Common low pressure switch line 1 Compressor inverter warning line 1 Baa02 Caa01 Alarm 1 compressor 1 line 1 Baa03 Caa02 Alarm 2 compressor 1 line 1 Baa04 Caa03 Alarm 3 compressor 1 line 1 Baa05 Caa04 Alarm 4 compressor 1 line 1 Baa06 Caa05 Alarm 5 compressor 1 line 1 Baa07 Caa06 Alarm 6 compressor 1 line 1 Baa08 Caa07 Alarm 7 compressor 1 line 1 Baa09 Caa15 Alarm 1 compressor 2 line 1 Baa10 Caa16 Alarm 2 compressor 2 line 1 Baall Caal7 Alarm 3 compressor 2 line 1 Baa12 Caa18 Alarm 4 compressor 2 line 1 Baa13 Caa19 Alarm 5 compressor 2 line 1 Baa14 Caa20 Alarm 6 compressor 2 line 1 Baa15 Caa21 Baa17 Caa28 Alarm 7 compressor 2 line 1 Alarm 1 compressor 3 line 1 Baa18 Caa29 Alarm 2 compressor 3 line 1 Baa19 Caa30 Alarm 3 compressor 3 line 1 Baa20 Caa31 Alarm 4 compressor 3 line 1 Baa21 Caa32 Alarm 5 compressor 3 line 1
87. O condensing unit The main features and compressor management characteristics of pRack OR100T are listed below 1 1 1 pR100T functionality list Possibility of management integrated in a single control for the medium temperature and low temperature line and the high pressure stage Management of the high pressure valve HPV Management of the receiver pressure regulating valve RPRV Valves management via external or built in PRK30TD driver through fieldbus communication port or via external driver in position mode in 0 10V Integration between HPV and receiver pressure j Accessory functions pre positioning minimum and Main features maximum values differentiated by machine ON and OFF maximum distance from the setpoint Oil cooler Oil receiver and oil injection Heat Reclaim Integration between heat reclaim and HPV and RPRV valve management Double suction line and one high pressure stage Fans management for high pressure stage Inverter regulation on the first compressor and on the first fan Generic functions easily configurable ON OFF modulations alarms scheduler Compact version ass External display pGDE or built in display Scroll reciprocating digital scroll Up to 4 alarms per compressor Inverter management even with modulation inside the Compressors dead zone Pump down Control of overheating in suction Italian English Ger
88. R600a R717 R744 R728 R1270 Caf04 Refrigerant type Type of refrigerant suction line 1 R744 RA17A RA22D RA13A R422A R423A R407A R427A R245Fa R407F R32 Min time on Minimum compressor on time line 1 30 S 0 999 Min time off Minimum compressor off time line 1 120 S 0 999 Caf05 Minimum time to start Minimum time between starts of same compressor line 1 360 S 0 999 same comp Direct Caf06 Startup Type of compressor startup Direct Part winding Star delta pRack pR100T 0300022EN rel 1 0 21 01 2015 40 CAREL Mask index Display description Description Default UoM Values Star time Star relay run time 0 ms 0 9999 Caf07 Star delay line Delaty betwen 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 compressor equalization at startup NO NO YES Equal time Equalization duration 0 S 0 999 FIFO Caf10 Device rotation type Type of rotation FIFO LIFO TIME CUSTOM l Unloader sequence in relation to compressor activation C compresso 5 ee Caf11 Device sequence CpppCppp CCpppppp P unloader CpppCppp Load up time Delay between different compressor starts 10 S 0 999 Caf12 Shutdown time Delay between different co
89. S X eo x noi S lt e S a x lt XX LS XX da LC d R PRA rata x Koran lt A oe MR Z lt gt Ed ZA X X XX lt Pressure Bar SS OX es x x XX Xx sa XX Es L IE I RIISI I S IE III I RIII III I EY I III III III IMOISSA Te CETTE UE QST ET Te me WE SOTO N ZAN a N M EOU S e ESTA UE GREEN Fig 7 y The HPV valve is managed according to the zone identified based on the output temperature and gas cooler pressure In order to define the zones it is necessary to set the two pressure values P oog and P__ the two temperatures Ly Ta related to points B and C in the figure and the two temperatures T and T oo In the following with T and P_ the temperature and pressure of the gas gc cooler will be indicated The behaviour of the HPV valve in the various zones is as follows e Transcritical zone identified by T gt and P lt P the valve works with proportional integral PI type integration in order to maintain the maximum COP given by the optimal pressure P calculated as a function of the output temperature from the gas cooler T e Subcritical zone identified by T lt T lt L the valve works with PI regulation in order to maintain constant subcooling e Transition zone identified by i Tos lt T the valve works with PI regulation with a pressure setpoint identifed as the conjunction of points B and C in the figure obtained by calculating
90. Shutdown compressor 3 ALC19 Alarm 5 compressor 3 Man Autom Config Config Shutdown compressor 3 ALC20 _ Alarm 6 compressor 3 Man Autom Config Config Shutdown compressor 3 ALC21 Alarm 7 compressor 3 Man Autom Config Config Shutdown compressor 3 ALC22 Alarm 1 compressor 4 Man Autom Config Config Shutdown compressor 4 ALC23 Alarm 2 compressor 4 Man Autom Config Config Shutdown compressor 4 ALC24 Alarm 3 compressor 4 Man Autom Config Config Shutdown compressor 4 ALC25 Alarm 4 compressor 4 Man Autom Config Config Shutdown compressor 4 ALC26 Alarm 5 compressor 4 Man Autom Config Config Shutdown compressor 4 ALC27 Alarm 6 compressor 4 Man Autom Config Config Shutdown compressor 4 ALC28 Alarm 7 compressor 4 Man Autom Config Config Shutdown compressor 5 ALC29 _ Alarm 1 compressor 5 Man Autom Config Config Shutdown compressor 5 ALC30 _ Alarm 2 compressor 5 Man Autom Config Config Shutdown compressor 5 ALC31 _ Alarm 3 compressor 5 Man Autom Config Config Shutdown compressor 5 ALC32 _ Alarm 4 compressor 5 Man Autom Config Config Shutdown compressor 5 ALC33 _ Alarm 6 compressor 5 Man Autom Config Config Shutdown compressor 5 ALC34 _ Alarm 7 compressor 5 Man Autom Config Config Shutdown compressor 5 ALC35 _ Alarm 7 compressor 5 Man Autom Config Config Shutdown compressor 5 ALC36 Alarm 1 compressor 6 Man Autom Config Config Shutdown compressor 6 AL
91. 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 t CAREL 7 14 Double line synchronization DSS pRack pR100T can manage some synchronization functions between the two lines e Inhibition of contemporary compressor starts e Forcing the medium temperature line if the low temperature line is activated Turning off the low temperature line if the medium temperature line is in a serious alarm condition The three DSS functions can be enabled independently Attention in the pRack pR100T software it is assumed that the medium temperature line is line L1 while the low temperature line is L2 DSS can be enabled and the relative parameters can be set from main menu branch Ef Inhibition of the contemporary starts The inhibition of contemporary starts of the compressor can be useful for all system configurations with two separate lines and in cascading system configurations The function that prevents contemporary starts can be enabled and a delay time can be set for compressor starts belonging to different lines Forcing the medium temperature line Forcing the medium temperature line can be useful for cascading system configuration and once enabled can force the startup at minimum power of at least one compressor in the medium temperature L1 line if at least one compressor in the low temperature L2 line is on This means that before turn
92. Suction pressure backup probe malfunction line 2 Automatic 605 R2 Related functions disabled ALA35 _ Common oil temperature probe malfunction Automatic 605 R2 Related functions disabled ALA36 Common oil temperature probe malfunction line 2 Automatic 605 R2 Related functions disabled ALA39 Discharge temperature probe malfunction compressors 1 6 Automatic 605 R2 Related functions disabled ALAA4O Discharge temperature probe malfunction compressors 1 6 line 2 Automatic 605 R2 Related functions disabled ALA41 Oil temperature probe malfunction compressors 1 6 line 1 Automatic 60 s R2 Related functions disabled ALA42 Oil temperature probe malfunction compressor 1 line 2 Automatic 60 s R2 Related functions disabled ALA43 _ Gas cooler output temperature probe malfunction Automatic 60 s R2 Related functions disabled ALA44 CO2 receiver pressure probe malfunction Automatic 60 s R2 Related functions disabled ALA45 Gas cooler output backup temperature probe malfunction Automatic 60 s R2 Related functions disabled ALBO1 Low suction pressure from pressure switch Semiautomatic Config RI Shutdown compressors ALBO2 High condensing pressure from pressure switch Man Autom Config RI Shutdown compressors ALB03 Low gas cooler output temperature from probe Automatic Settable RI Fan forcing at 0 j 0 ALBO4 High gas cooler output temperature from probe Autom
93. TED si tage max power eun vs a van w serial card 1 N J1 J2 c co c M Fig 3 a Legenda power supply connector G GO 24 Vac or 48 vdc 36 Vdc min 72 Vdc max Fig 3 b 2 SYNC synchronicity inputs for phase control and NTC 0 1 V Oto 5 V O to 20 MA 4 to 20 mA 5 Vref for probe power supply 5 V COMMON power supply for controller amp SYNC ratiometric and VDC 24 Vdc for active probes the use of tLAN port excluded the use of Field Bus port and vice versa 3 digital output 4 connector for all pCO series standard terminals and downloading the DC power supply application program 5 pLAN connector 6 pLD terminal connector 7 tLAN connector 8 __ opto isolated Field Bus serial connector 9 _ O to 10V and PWM phase control analogue outputs 10 digital output 11 digital outputs Type A 12 INTC analogue inputs and digital inputs Type A 13 removable door to access the USB ports 14 digital outputs Type B 9 lt B 2 15 digital outputs Type B e zi 16 digital input and analogue outputs 0 to 10 V Type B lt Tab 3 a Fig 3 c SEPARATE power supply for controller amp SYNC the use of tLAN port excluded the use of Field Bus port and vice versa 11 pRack pR100T 0300022EN rel 1 0 21 01 2015
94. after which it falls to O 96 and remains there until the request exceeds the cut off value again 7 5 2 Rotation pRack pR100T can manage rotation of the fans much in the same way as described for the compressors therefore 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 pR100T can specially manage inverter driven fans In fact a multiple number of inverter driven fans can be set If 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 If 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 of the modulating device is proportional to the number of fans therefore the 23 first case is applied as described previously 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 7 5 3 Fast start
95. ailable Cae02 Mari lidacer od ac mM description Generic Overload High u O Not selected P j P M Selected xl Not available Cae03 Alarm 1 descr Selection of first compressor alarm description Rotation Oil warning line 1 1 Not selected M Selected Activ delay Activation delay for alarm 1 during operation line 1 0 S 0 999 edi Startup delay Activation delay for alarm 1 at startup 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 pas NORMAL SERIOUS 2 SHE TOW pres ey Type of high suction pressure temperature alarm threshold ABSOLUTE ABSOLUTE RELATIVE Cae24 temperature alarm Threshold High suction pressure temperature alarm threshold Ww uu T a Cae25 Differen High suction pressure temperature alarm differential ue mus Delay High suction pressure temperature alarm delay 120 S 0 999 Low suction pressure l u Cae26 dai Type of low suction pressure temperature alarm ABSOLUTE ABSOLUTE RELATIVE Threshold Low suction pressure temperature alarm threshold as Te dk Cae27 Differen Low suction pressure temperature alarm differential TE on ies TE ul Delay Low suction pressure temperature alarm delay 30 S 0 999 a empala Enable Digital Scroll oil temperature alarm line 1 NO NO YES Cae28 gt Elev pee ow Enable Digital Scroll discharge temperature alarm line 1 NO NO YES alarm mgmt low superhet alat
96. ailable Available Available Available 4 Size sali vi digital analog digital g Np inputs outputs outputs Compact 4 2 2 2 4 6 Tab 1 b can also be used as digital inputs For each size the following versions are available e with built in terminal without terminal All pRack pR100T models are equipped with integrated RS485 serial interface e anthracite gray plastic cover connector kit USB pRack pR100T models Size Code Description PRACK COMPACT B TRANSCRITICO RTC DISPLAY BUILT IN CONNECTOR KIT compact PRK10TY3CO Tab 1 c Accessories Code Description PGDERKTIFXO pGD evolution user terminal for pRack pR100T Module to convert a SONO 0 10 V analog output to an SPDT digital output CVSTDUTLFO USB RS485 serial convertor with telephone connector CVSTDUMORO USB RS485 serial converter with 3 way terminal PCOSOOAKYO Smart Key programming key S90CONNOO2 Connection cable for terminal 120 8m S90CONNOOO _ Connection cable for terminal 1 1 5m S90CONNOO Connection cable for terminal 123 m SPKT R and SPKCOO SPK C SPK1 SPK2 SPK3 Ratiometric pressure probes 0 5 Vdc Active pressure probes 4 20 MA NIC Pressure probe NTC 50T90 C NIC HT Pressure probe NIC 0T150 C EVDOOOOES0 EVD EVO universal driver for Carel valves RS485 Modbus EVDIS00D 0 Display for EVD EVO E2VCABS 00 EVD valve connection cable Tab 1 d 1 3 BMS
97. al the alarm is acknowledged by pressing the x 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 Automatic when the alarm condition ceases the alarm is automatically reset the LED comes on steady and the corresponding screen remains displayed until the T 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 pRack pR100T 0300022EN rel 1 0 21 01 2015 9 1 3 Log The alarm log can be accessed e from branch G a of the main menu by pressing the x 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 Orderof 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 pres
98. al to 0 or 100 for the decrease and increase respectively 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 In the situation shown in the figure the request 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 7 3 3 Modulation in Neutral zone pRack pR100T 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 used 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
99. alarm delay line 1 0 S O to 9999 Threshold Oil cooler low temperature alarm threshold line 1 100 0 C F Eaab20 Differential Oil cooler low temperature alarm differential line 1 10 0 C C F f Delay Oil cooler low temperature alarm delay line 1 0 S 0 to 9999 DO Subcooling DO valve position line 1 01 29 Ebaa01 Status display only Subcooling DO valve status line 1 Closed Open Logic Subcooling DO valve logic line 1 NO NC NO Function display only Status of the subcooling valve function line 1 Not active Active Subcooling contr Enable subcooling function line 1 NO NO YES Subcooling control type line 1 ii O Ebab01 J yp HUS ONLY LIQUID TEMP Threshold Threshold for subcooling activation line 1 0 0 C 9999 9 9999 9 Subcooling display only __ Subcooling value line 1 0 0 C 999 9 999 9 Discharge temperature probe position compressor 1 line 1 BI B1 B10 NIC PT1000 0 1 V 0 10 V Discharge temperature probe type compressor 1 line 1 4 20MA 4 20 mA 0 5 V HTNTC Ecaa01 display only Discharge temperature value compressor 1 line 1 EE uni Max limit Discharge temperature maximum value compressor 1 line 1 30 0 barg PE ui Min limit Discharge temperature minimum value compressor 1 line 1 0 0 barg salti Calibration Discharge temperature probe calibration compressor 1 line 1 0 0 barg xis DO Compressor 6 economizer valve DO position
100. an be connected either to the board that manages the suction line or the board that manages the condenser line 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 714 Compressors pRack pR100T can manage different types of compressors and capacity modulation devices applying common types of device rotation and controlling both the start mode and the safety times for each type of compressor as well as a number of accessory functions The compressor functions and related parameter settings are enabled from main menu branch C a C b These features and functions are described in detail in the following paragraphs 7 4 4 Possible compressor configurations pRack pR100T can manage different types of compressors Reciprocating Scroll Moreover 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 modulation devices Reciprocating Inverter Inverter Scroll Digital Scroll Tab 7 c O Note The same modulation device is used on each line The compressor size refers to its capacity and number of load stages or to the inverter presence therefore different sizes need to b
101. ared 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 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 15 Menu screen An example of a menu screen is shown in the figure below Fig 6 b The top right corner shows the selected item and the current password level for details see the following paragraph The 4 and Y buttons are used to select the 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 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 6 3 Password pRack pR100T manages three levels of password e BUser e E Maintenance EManufacturer Each level include
102. arg pis R22 R134a R404A R407C R410A R507A R290 R600 T R600a R717 R744 R728 R1270 1593 Refrigerant Type of refrigerant condensing line 1 R744 R417A RA22D R413A R422A R423A RA07A RA27A R245Fa R407F R32 Regulation type Fan regulation type line 1 ELEME CT SINO Ib94 g yp J yP BAND DEAD ZONE Enable integral time action _ Enable integral time for proportional regulation NO NO YES Ib95 Setpoint Setpoint without compensation condens line 1 12 0 barg aC ust Differential Differential condensing line 1 2 0 barg D ood Ib96 A MORETE ORORO Configuration of a second condensing line NO NO YES Ibla Number of fans Number of fans line 2 3 0 16 Ible Differential Differential condensing line 2 2 0 barg C a SUCTION Ic01 Type of system Type of system EA uS CONDENSER j SUCTION CONDENSER Ic02 Units of measure Unit of measure C barg C barg F psig Ic03 Number of suction lines Number of suction lines 1 0 2 Ic04 Lm piace Deeley Suction line in separate boards NO NO YES suction line RECRIPRO RECIPROCATING Ic05 Compressor type Type of compressors line 1 CATING SCROLL SCREW Number of compressors Number of compressors line 1 4 1 6 12 5 RECRIPRO RECIPROCATING Ic06 Compressor type Type of compressors line 2 CATING SCROLL SCREW Number of compressors Number of compressors line 2 0 Lie Ic07 Condenser line number System condensing line number 1 0 2 cog Line 1 Number of
103. as cooler Fans can be managed also with inverter modulation In the event of modulation the modulating output 0 10 V is unique while an input can be managed for each fan for signalling the alarms The functionalities can be enabled and the relative parameters can be set from main menu branch D a D b 7 5 1 Control pRack pR100T can manage 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 pR100T board and the pLAN network is disconnected 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 O 96 maximum 100 96 Analog output Max capacity 100 96 Maxoutput C _ _ _
104. ate the project s 2cw file 11 2 4 Commissioning basic concepts Note The following paragraphs are from the online help of pRack Manager to which the user is referred for further details Commissioning is a configuring and real time monitoring software that can be used to supervise the performance of an application program installed on a pRack to start up the pRack and to perform debugging and maintenance Operators using Commissioning for maintenance will be able to see the necessary variables and to draw from preset configuration values pRack pR100T 0300022EN rel 1 0 21 01 2015 70 CAREL 11 2 5 Supportfiles Once the design of the application is completed 1Tool generates a number of files in the compiling stage two of which are required by Commissioning e nomeApplicativo 2CF lt ApplicationName gt 2CF variable descriptor e nomeApplicativo 2CD lt ApplicationName gt 2CD category and access profile descriptor In addition to these files the software also manages the nome applicativo gt DEV Application Name gt DEV file which contains the unit s preset parameters When the user has finished using Commissioning whether for configuration or monitoring purposes the following files can be generated e lt nomeApplicativo gt 2CW lt ApplicationName gt 2CW descriptor for categories access profiles monitoring groups e lt nomefilecommissioningLog gt CSV FilenameCommission
105. atic Settable RI La BRIANZA SORA ALBO5 Liquid level Automatic Config R2 ALBO6 Common oil differential Automatic Config R2 ALBO7 Common fan circuit breaker Automatic Config Config ALBOS Low suction pressure from pressure switch line 2 Semiautomatic Config RI Shutdown compressors line 2 ALBO9 High condensing pressure from pressure switch line 2 Man Autom Config RI Shutdown compressors line 2 ALB10 Low condensing pressure from probe line 2 Automatic Config RI ALB11 High condensing pressure from probe line 2 Automatic Config RI E ALB12 Liquid level line 2 Automatic Config R2 ALB13 Common oil differential line 2 Automatic Config R2 ALB14 _ Common fan circuit breaker line 2 Automatic Config Config ALB15 High suction pressure from probe Automatic Config R1 ALB16 Low suction pressure from probe Automatic Config RI ALB17 High suction pressure from probe line 2 Automatic Config RI ALB18 Low suction pressure from probe line 2 Automatic Config RI ALB21 Shutdown to prevent high pressure Manual Config RI Shutdown compressors ALB22 Shutdown to prevent high pressure line 2 Manual Config RI Shutdown compressors line 2 ALCO1 _ Alarm 1 compressor 1 Man Autom Config Config Shutdown compressor 1 ALCO2 Alarm 2 compressor 1 Man Autom Config Config Shutdown compressor 1 ALCO3 Alarm 3 compressor 1 Man Autom Config Config Shutdown compressor 1 ALCOA Alarm 4 compressor 1 Man Autom Config
106. b16 jum n NO NO YES S4 Enable size and size for compressor group 4 line 1 n lw 0 0 5000 C01 Size for compressor 1 or presence of inverter line 1 S1 S1 S4 INV Ib17 T C06 Size for compressor 6 line 1 S1 54 j SAME SIZE 1020 Compress size Compressors sizes line 1 SAME SIZE DEFINE SIZES l Yes NO YES S1 Enable size and size for compressor group 1 line 1 n lw 0 0 5000 Ib21 gt NO NO YES S4 Enable size and size for compressor group 4 line 1 M lw 0 0 5000 C01 Size for compressor 1 or presence of inverter line 1 S1 S1 S4 INV Ib22 T zal sh da C12 Size for compressor 12 line 1 S1 51 54 Regulation Compressor control by temperature or pressure line 1 PRESSURE Mi ID40 9 P TIME P TEMPERATURE Units of measure Units of measure line 1 barg T R22 R134a R404A R407C R410A R507A R290 R600 l l ere R600a R717 R744 R728 R1270 Ib40 Refrigerant Type of refrigerant suction line 1 R744 RA17A R422D RA13A R422A R423A R407A RA27A R245Fa R407F R32 PROPORTIONAL BAND Ib41 Regulation type Compressor regulation type line 1 DEAD ZONE DEAD ZONE Enable integral time action Enable integral time for proportional regulation of suction line line 1 NO NO YES 1642 Setpoint Setpoint without compensation suction line 1 3 5 barg lewd Differential Differential suction line 1 0 3 barg AS re a Ib43 oe anc ner SARDI Second line configuration NO NO YES 145 Prae
107. baab Valve 1 compressor 11 line 2 Bacbl Cbaac Equalization valve compressor 11 line 2 Line relay compressor 12 line 2 Bacbm Cbaae Partwinding Star relay compressor 12 line 2 Delta relay compressor 12 line 2 Bacbn Cbaaf Valve 1 compressor 12 line 2 Bacbq Cbaag Equalization valve compressor 12 line 2 Baccn Dba20 Fan 1 line 2 Bacco Dba21 Fan 2 line 2 Baccp Dba22 Fan 3 line 2 Baccg Dba23 Fan 4 line 2 Baccr Dba24 Fan 5 line 2 Baccs Dba25 Fan 6 line 2 gt Bacct Dba26 Fan 7 line 2 2 Baccu Dba27 Fan 8 line 2 3 Baccv Dba28 Fan 9 line 2 6 Baccw Dba29 Fan 10 line 2 Baccx Dba30 Fan 11 line 2 Baccy Dba31 Fan 12 line 2 Baccz Dba32 Fan 13 line 2 Bacda Dba33 Fan 14 line 2 lt Bacdb Dba34 Fan 15 line 2 U Bacdc Dba35 Fan 16 line 2 Bacdd Dba36 Fan inverter warning line 1 Bacde Eeba03 Heat recovery pump line 2 Bacdf Egba02 ChillBooster line 2 Bacds Eaba10 Oil pump 1 line 2 Bacdt Eaba11 Oil pump 2 line 2 Bacdu Eaba12 Oil fan line 2 S9 Baceb Ecba07 Edba07 Liquid injection valve compressor 1 line 2 e Bacec Ebca08 Edba08 Liquid injection valve compressor 2 line 2 Baced Ecba09 Edba09 Liquid injection valve compressor 3 line 2 E Bacee Ecba10 Edba10 Liquid injection valve compressor 4 line 2 O Bacef Ecba11 Edba11 Liquid injection valve compressor 5 line 2 Baceg Ecba12 Edba12 Liquid injection valve compressor 6 line 2 Bac72 Non return of liquid line 2 Bacep Forcing from BMS lin
108. 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 7 h When entering the Neutral zone the pRack pR100T 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 CAREL 7 3 4 Control with backup probes and or probes not working pRack pR100T 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 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 c
109. 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 e time bands winter summer seasons digital input Supervisor outside temperature set threshold and differential O Note the split condenser function can be disabled by parameter if the high pressure prevention function is activated 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 e split condenser cannot be enabled if there is a speed modulation device that controls all the fans 7 5 6 Manual operation pRack pR100T can also manage the same three manual operating modes for the fans as described for the compressors Enabling Manual management Output test Enabling is managed in main menu branch D a f D b f 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 paragr 6 3 9 pRack pR100T 0300022EN rel 1 0 21 01 2015 7 5 7 pRack pR100T 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 Alarms 7 6 HPV valve management
110. compressor 10 line 1 Bac60 Caa98 Equalization valve compressor 10 line 1 Line relay compressor 11 line 1 Bac61 Caaaa Partwinding Star relay compressor 11 line 1 Delta relay compressor 11 line 1 Bac62 Caaab Valve 1 compressor 11 line 1 Bac65 Caaac Equalization valve compressor 11 line 1 Line relay compressor 12 line 1 Bac66 Caaae Partwinding Star relay compressor 12 line 1 5 Delta relay compressor 12 line 1 Bac67 Caaaf Valve 1 compressor 12 line 1 A Bac70 Caaag Equalization valve compressor 12 line 1 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 9 Bacbz Daa27 Fan 7 line 1 Bacca Daa28 Fan 8 line 1 2 Baccb Daa29 Fan 9 line 1 9 Baccc Daa30 Fan 10 line 1 Bacca Daa31 Fan 11 line 1 Bacce Daa32 Fan 12 line 1 Baccf Daa33 Fan 13 line 1 Baccq Daa34 Fan 14 line 1 Bacch Daa35 Fan 15 line 1 Bacci Daa36 Fan 16 line 1 Bacck Eeaa03 Heat recovery pump line 1 Baccl Egaa02 ChillBooster line 1 4 Bacdp Eaaall Oil pump 1 line 1 o Bacdq Eaaal2 Oil pump 2 line 1 Bacdr Eaaa13 Oil fan 1 line 1 2 Bacdv Ecaa07 Edaa07 Liquid injection valve Economizer compressor 1 line 1 o Bacdw Ecaa08 Edaa08 Liquid injection valve Economizer compressor 2 line 1 E Bacdx Ecaa09 Edaa09 Liquid injection valve Economizer compressor 3 line 1 Bacdy Ecaa10 Edaa10 Liquid injection valve Economizer compressor 4
111. ction system WARNING separate as much as possible the probe and digital input signal cables from the cables carrying inductive loads and power cables to avoid possible electromagnetic disturbance Never run power cables including the electrical panel wiring and signal cables in the same conduits NO POWER amp SIGNAL CABLES TOGETHER READ CAREFULLY IN THE TEXT to bring attention to a very important subject in Key icone O NOTE particular regarding the practical use of the various functions of the product to bring critical issues regarding the use of the A QLL pRack PR300 to the attention of the user LE TUTORIAL some simple examples to accompany the user in configuring the most common settings pRack pR100T 0300022EN rel 1 0 21 01 2015 CAREL Content 1 INTRODUCTION 7 VW la 7 12 Components NIGRO 7 1 3 _ BMS 221131 0 00 aa 7 D Gli 8 1 5 Installation warnings operating environments and connections 8 c e 8 2 TECHNICAL SPECIFICATIONS 9 2 1 Mechanical specifications ettet 9 2 Lc 9 23 Electrical SPECIE 9 24A Analogue DU aio 9 25 LIE 9 206 AIOP ricci 9 LI 10 28 COUT SO SCC lil 10 29 Mechanical dimensiOonNS siria 10 3 TERMINALS 11 3 1 Description or the termilliale tiit cett recette E bh 11 me Edo 11 4 INSTALLATION 13 4 1 General installation instructions 13 4A FOWE sob 13 5 START UP 14 5 1 Starting the first tiMe LL 14
112. ctive heat recovery control can act on the HPV valve set point and on the effective Gas Cooler set point in both simultaneous mode acting on both at the same time and in sequential mode based on thresholds first acting on the HPV and then the Gas Cooler when exceeding a certain heat demand threshold action on HPV set point in barg psig e action on GC set point C F When acting on the HPV valve set point the heat recovery function modifies the Minimum HPV valve control set point parameter screen Eib28 whose default value is 40 0 barg and used as a lower limit for calculating the dynamic pressure set point for controlling the high pressure valve Increasing this minimum set point from its default value 40 0 barg to a new minimum set point e g 75 0 barg causes the system to operate in transcritical conditions even when the Gas Cooler outlet temperature is between Tmin and T23 see the control parameters screen Eib05 in this zone defined as subcritical the HPV set point would be calculated based on subcooling This minimum set point can be increased further screen Eeab28 in proportion to the heat recovery demand up to a settable maximum limit value e g 85 0 barg If the HPV valve set point calculated based on the Gas Cooler temperature exceeds the minimum set point modified by the heat recovery function the controller will use the calculated set point Request 96 I I I I I I I I I I I I I I I
113. cure the cables connected to the pRack PR100around 3 cm from the connectors using clamps e if the productis installed in industrial environments application of the EN 61000 6 2 standard the length of the connections must be less than 30 m 13 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 in residential environments the connection cable between the pRack PR100and the terminal must be shielded there is no limit to the number of cables that can be connected to an individual terminal The only limitation concerns the maximum current crossing each terminal this must not exceed 8 A the maximum cross section of the cable that connected to a terminal is 2 5 mm 12 AWG e the maximum value of the twisting torque to tighten the screw on the terminal torque tightening is 0 6 Nm A Important e Installation must be performed according to the standards and legislation in force in the country where the device is used e for safety reasons the equipment must be housed inside an electrical panel so that the only accessible part is the display and the keypad in the event of malfunctions do not attempt to repair the device but rather contact the CAREL service centre e the connector kit also contains the stick on labels 4 1 3 Anchoring the pRack pR100T The pRack PR100is
114. d 7 PLB4 Man Autom Config Config ALG23 Generic low modulation alarms 6 and 7 PLB1 Man Autom Config Config ALG24 Generic low modulation alarms 6 and 7 PLB2 Man Autom Config Config ALG25 Generic low modulation alarms 6 and 7 PLB3 Man Autom Config Config ALG26 Generic low modulation alarms 6 and 7 PLB4 Man Autom Config Config ALG27 Normal alarm generic functions 8 9 PLB1 Man Autom Config Config ALG28 Serious alarm generic functions 8 9 PLB1 Man Autom Config Config ALG29 Normal alarm generic functions 8 9 PLB2 Man Autom Config Config ALG30 Serious alarm generic functions 8 9 PLB2 Man Autom Config Config ALG31 Normal alarm generic functions 8 9 PLB3 Man Autom Config Config ALG32 Serious alarm generic functions 8 9 PLB3 Man Autom Config Config ALG33 Normal alarm generic functions 8 9 PLB4 Man Autom Config Config ALG34 _ Serious alarm generic functions 8 9 PLB4 Man Autom Config Config ALH0O1__ ChillBooster fault Automatic Config R2 Disable ChillBooster ALHO2 ChillBooster fault line 2 Automatic Config R2 Disable ChillBooster ALOO2 pLan malfunction Automatic 605 RI Shutdown unit ALTO __ Compressor maintenance request Manual a Not present __ ALTO2 _ Compressor maintenance request line 2 Manual Not present ALTO3 ChillBooster maintenance request Manual 0s Not present ALTO4 ChillBooster maintenance request line 2 Manual 0s Not present
115. d functions disabled ALAO2 Discharge temperature probe malfunction Automatic 60 s R1 Related functions disabled ALAO3 _ External temperature probe malfunction Automatic 605 R2 Related functions disabled ALAOA _ Generic probe malfunction A PLB1 Automatic 60s R2 Related functions disabled ALAO5 _ Generic probe malfunction B PLB1 Automatic 60 s R2 Related functions disabled ALA06 Generic probe malfunction C PLB1 Automatic 605 R2 Related functions disabled ALAO7 Generic probe malfunction D PLB1 Automatic 60s R2 Related functions disabled ALAOS8 Generic probe malfunction E PLB1 Automatic 605 R2 Related functions disabled ALAO9 Generic probe malfunction A PLB2 Automatic 60s R2 Related functions disabled ALA10 _ Generic probe malfunction B PLB2 Automatic 60s R2 Related functions disabled ALAT11 Generic probe malfunction C PLB2 Automatic 605 R2 Related functions disabled ALA12 Generic probe malfunction D PLB2 Automatic 60s R2 Related functions disabled ALA13 Generic probe malfunction E PLB2 Automatic 60s R2 Related functions disabled ALA14 Generic probe malfunction A PLB3 Automatic 60 s R2 Related functions disabled ALA15 Generic probe malfunction B PLB3 Automatic 605 R2 Related functions disabled ALA16 _ Generic probe malfunction C PLB3 Automatic 605 R2 Related functions disabled ALA17 Generic probe malfunction D PLB3 Automatic 605 R2 Related functions disabled ALA18 Ge
116. densing line 1 5 S 0 60 Daa13 Ext Temp Mgmt Enable speed up management by external temperature condensing line 1 DIS DIS EN ag Ext Temp Set Speed up management by external temperature threshold condensing line 1 25 0 C 99 9 99 9 Diff Ext Temp i up management by external temperature differential condensing 25 C 999 999 Dagi4 Enable gas cooler press Enable screens for the configuration of the gas cooler pressure backup probe NO a NO YES backup probe condensing line 1 Dag15 la ii Value of fan forcing in case of gas cooler probe error line 1 50 0 0 0 100 0 regulation probe fault The following parameters refer to line 2 for details see the corresponding parameters for line 1 above DI Fan 1 overload DI position line 2 gt 01 18 B1 B10 Dba01 Status display only Fan 1 overload DI status line 2 gt Closed Open Logic Fan 1 overload DI logic line 2 NC ER NC NO Function display only Fan 1 overload function status line 2 Not active Active Regulation Condenser regulation by temperature or pressure line 2 PRESSURE PRESSURE TEMPERATURE Dbb01 EF PROPORTIONAL BAND Regulation type Condenser regulation Type line 2 TIONAL DEAD ZONE BAND Dbd01 Enable PORERNE OI Enable setpoint compensation condensing line 2 NO NO YES compensation Cond pressure high alarm Condensing high pressure temperature alarm threshold type line 2 ABSOLUTE ABSO UTE RELATIVE Delay Condensing hig
117. device 90 0 600 Cagua Time to pass from maximum to minimum capacity for modulating device Falling time line 1 30 S 0 600 Cag03 Plame a Enable compressor 1 modulation inside dead zone line 1 AB DIS EN modulat in dead zone Cago4 Enable suction press backup Enable screens for the configuration of the suction pressure backup probe NO u NO YES probe line 1 negues eea Compressor forcing value in case of suction probe fault line 1 50 0 0 0 100 0 Cag05 regulation probe fault Pumpdown Enable pumpdown function line 1 DIS DIS EN Threshold Pumpdown end threshold line 1 1 5 barg Ead Cage Enable anti return of liquid Enable liquid non return function line 1 NO NO YES 9 Delay Delay liquid non return function line 1 0 min 0 15 Cag07 Enable compressor Enable compressor envelope management only screw type NO u NO YES envelope control Contact Carel for configuration details The following parameters refer to line 2 for details see the corresponding parameters for line 1 above DI Alarm 1 compressor 1 DI position line 2 03 gt 01 18 BT BIO Status display only Status Alarm 1 compressor 1 DI line 2 Closed Open CAI Logic Logic alarm 1 compressor 1 DI line 2 NC Ws Function display only Alarm 1 compressor 1 function status line 2 Not active Active Requlation Compressor control by temperature or pressure line 2 PRESSURE PRESSURE TEMPERATURE Cbb01 l l DEAD PROPORTIONAL BAND Re
118. e 2 Bacel Eobb01 Subcooling line 2 61 pRack pR100T 0300022EN rel 1 0 21 01 2015 CAREL Digital outputs Mask index Description Channel Logic Notes Eaba23 Common oil level valve line 2 Eaba40 Oil level valve compressor 1 line 2 Eaba41 Oil level valve compressor 2 line 2 Eaba42 Oil level valve compressor 3 line 2 Eaba43 Oil level valve compressor 4 line 2 Eaba44 Oil level valve compressor 5 line 2 2 Eaba45 Oil level valve compressor 6 line 2 2 Ebaa01 Subcooling valve line 2 p Baceo Oil receiver line 2 S Bacdg Efe21 Stage 1 generic function ic Bacdh Efe22 Stage 2 generic function Bacdi Efe23 Stage 3 generic function Bacdj Efe24 Stage 4 generic function Bacdk Efe25 Stage 5 generic function Bacdl Alarms present Bacdm Efe26 Generic alarm function 1 Bacdn Efe27 Generic alarm function 2 Bacdo Efe28 General scheduling function Tab 8 m Analog inputs Mask index Description Channel Type Notes Bab01 Caaal Suction pressure probe line 1 t Bab02 Caaam Suction pressure backup probe type line 1 A Bab03 Caaao Suction temperature probe line 1 Bab60 Suction pressure probe compensation line 1 Bab04 Daa39 Gas cooler pressure probe line 1 Bab09 Daa4
119. e accessory functions HPV valve management includes some accessory functions Pre positioning entering the unit ON status the HPV valve remains at a fixed position that can be set by a parameter for a fixed time which is also settable by a parameter in order to be able to quickly raise the pressure in the tank This procedure is reactivated whenever the unit goes into the OFF status or the HPV valve moves into the minimum position due to all of the compressors being turned off optional e Valve closure with compressors off if all compressors in the medium temperature unit are turned off the HPV valve can be positioned at the minimum opening value in the OFF status which can be set by a parameter When a compressor is restarted the valve restarts the regulation with the pre positioning procedure described in the previous point Minimum and maximum opening values the minimum opening value in Off status and in ON status can be differentiated by keypad digital input or supervisor which the maximum opening value is unique e Maximum percentage variation the movement of the valve cannot exceed the maximum set percentage variation per second e Filter on setpoint the calculation of the regulation setpoint of the HPV valve can be done by taking into account the averages of the last n samples maximum 99 to avoid sudden variations due to high variability of the output temperature of the gas cooler e Minimum setpoint a minimum value
120. e between consecutive starts In addition pRack pR100T can manage the specific times for Digital Scroll compressors for the descriptions see paragraphs 6 3 10 The related parameters can be set in main menu branch C a f C b f 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 function for two lines DSS CAREL 7 4 6 Balancing pRack pR100T 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 branch Ca f C b f 7 4 7 Economizer pRack pR100T can activate the economizer function to boost compressor efficiency by injecting vapour Some of the liquid is taken from the condenser expanded through a valve and then sent to a heat exchanger to cool the liquid leaving the condenser The resulting superheated vapour is injected into a special section of the compressor The function can be enabled and the related parameters set in main menu branch Caf The function can be enabled and the rela
121. e defined for compressors with the same capacity yet a different number of load stages The inverter is always associated to size 1 D Tutorial below is one example of some possible configurations e 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 One line 4 reciprocating compressors with the same capacity and 4 load stages each 1 size 7 4 2 Rotation pRack pR100T can manage 4 different types of device rotation e FIFO First In First Out the first device to start is also the first to stop e LIFO Last In First Out the last device to start is the first to stop Bytime the device with the least number of operating hours starts and the device with highest number of operating hours stops e 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 C a f C b f The activation thresholds are calculated differently depending on whether FIFO LIFO time or Custom rotation is used 19 Device activation threshold calculation Rotation Th
122. e is performed again during the following start Note the safety times for Digital Scroll compressors are established by the manufacturer and are as follows e Minimum ON time 244 s starting procedure e Minimum OFF time 180 s Minimum time between restarts 360 s pRack pR100T 0300022EN rel 1 0 21 01 2015 CAREL Alarms pRack pR100T 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 pR100T 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 pR100T does not manages the envelope for Digital Scroll compressors and consequently there is no corresponding alarm when operating outside the envelope 7 5 Gascooler pRack pR100T manages the gas cooler in a manner that is completely similar to the pRack PR100 for the condensers with the only difference being that in transcritical condition since correspondence between the pressure and saturated temperature is lost the regulation is always in temperature The regulation variable therefore is the output temperature from the g
123. e 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 is used to override the outputs on the pRack boards in the order they physically appear on the board without links to the devices Fig 7 1 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 Digital Scroll compressors pRack pR100T can use a Digital Scroll compressor as the modulating device for suction lines one for each line This type of compressor features special operation and is controlled by pRack pR100T as follows The related parameters can be set in main menu branch C a f C b f 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 Com pressor power request Compressor PWM 10 67 modulation Fixed cycle time Variable cycle time Fig 7 5 The following data are provided by the manufacturer of the compressor minimum ON time 25 maximum cycle time 20 s optimum cycl
124. e probe line 2 u Bab06 Caaam Suction pressure backup probe type line 2 A Bab07 Caaao Suction temperature probe line 2 Bab64 Suction pressure probe compensation line 2 Bab08 Dba39 Condensing pressure probe line 2 O Bab10 Dba40 Condensing pressure backup probe line 2 Bab48 Dba38 Discharge temperature probe line 2 Bab49 Liquid temperature probe line 2 Bab14 Eeba05 Heat recovery output temperature probe line 2 Bab18 Eaba04 Oil temperature probe line 2 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 N Bab38 Ecba04 Edba04 Discharge temperature probe compressor 4 line 2 e Bab39 Ecba05 Edba05 Discharge temperature probe compressor 5 line 2 Bab40 Ecba06 Edba06 Discharge temperature probe compressor 6 line 2 z Bab47 Eaba05 Oil temperature probe compressor 1 line 2 2 Bab65 Oil receiver differential pressure probe line 2 E Eaba05 Oil temperature probe compressor 1 line 2 5 Eaba06 Oil temperature probe compressor 2 line 2 Eaba07 Oil temperature probe compressor 3 line 2 Eaba08 Oil temperature probe compressor 4 line 2 Eaba09 Oil temperature probe compressor 5 line 2 Eaba10 Oil temperature probe compressor 6 line 2 Bab20 Efe07 Passive generic probe A Bab21 Efe08 Active generic probe B Bab22 Efe09 Passive generic probe B Bab23 Ffe10 Active generic probe C Bab24 E
125. e temperature maximum value compressor 1 line 2 30 0 barg zit Min limit Discharge temperature minimum value compressor 1 line 2 0 0 barg 7 Calibration Discharge temperature probe calibration compressor 1 line 2 0 0 barg qe Liquid inj Enable liquid injection function line 2 DIS DIS EN Edbb01 Threshold Liquid injection setpoint line 2 70 0 C S Differential Liquid injection differential line 2 5 0 DI Heat recovery from digital input DI position line 2 gt 4 01 18 BT B1O Eeba02 Status Heat recovery from digital input DI status line 2 Closed Open Logic Heat recovery from digital input DI logic line 2 NC NC NO Function Heat recovery from digital input function status line 2 Not active Active Eebb01 Enable heat rec Enable heat recovery function line 2 NO NO YES DI ChillBooster fault DI position line 2 01 18 B1 B10 Egba01 Status ChillBooster fault DI status line 2 Closed Open Logic ChillBooster fault DI logic line 2 NC NC NO Function ChillBooster fault function status line 2 Not active Active Device present Enable ChillBooster function line 2 NO NO YES suli tai Fan capacity under which the ChillBooster is deactivated line 2 95 0 100 power less than Tab 8 f Mask index Display description Description Default lUoM Values HA Fa Yq8E Summer Winter Enable summer winter management NO NO YES Faaa01 Special days Enab
126. e time 12 s There are three possible operating modes Fixed cycle time e Variable cycle time Optimised cycle time Based on the operating mode selected pRack pR100T calculates the valve activation percentage that satisfies the required capacity pRack pR100T 0300022EN rel 1 0 21 01 2015 Fixed cycle time The compressor ON time is calculated as the percentage of the cycle time corresponding to the required capacity Tox 96 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 Taao Foy 796 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 96 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 96 Note the minimum capacity that can be delivered by Digital Scroll compressors is Minimum ON time Maximum cycle time 2 30 6 7 96 which al
127. ead _ 99 zone line 1 iseset Setpoint set by the user for suction regulation under pressure proportional 99 regulation line 2 Ab03 display only Actual setpoint for suction regulation under pressure proportional regulation e ActualSetp Mus Nd with compensations applied line 2 Diff Suction regulation under pressure differential proportional regulation line 2 2g Users Setpoint set by the user for suction regulation under pressure proportional 9 regulation line 2 ActualSetp Actual setpoint for suction regulation under pressure proportional regulation _ 9 with compensations applied line 2 Ab04 display only Dead zone Dead zone for suction requlation under pressure line 2 45 Increase differential for suction regulation under pressure regulation in dead n Incr Diff Jee zone line 2 Decr Diff Decrease differential for suction regulation under pressure regulation in dead __ 9 zone line 2 Useisaio Setpoint set by the user for gas cooler regulation under pressure 9 proportional requlation line 1 Ab05 display only Actual setpoint for gas cooler regulation under pressure proportional a ActualSetp i i Zi d regulation with compensations applied line 1 Diff Gas cooler regulation under pressure differential proportional regulation line 1 Ee Setpoint set by the user for gas cooler regulation under pressure DE UserSetp Y d proportional requlation line 1
128. eceiver and valve are illustrated schematically in Fig 5 a If no oil level input is present the solenoid valve can still be activated by connecting its operation to the status of the compressors If only the minimum level is present activation of the solenoid valve occurs intermittently for the entire time in which the minimum level is not active The opening and closing times of the valve during activation can be set by a parameter If the minimum level signal deactivates again the valve remains deactivated for at least a minimum set closure time as shown in the figure Minimum off time oil solenoid i M dipee Minimum oil level active Minimum oil level not active Common oil solenoid ACTIVE Common oil solenoid 7 NOT ACTIVE Fig 7 ag Gestione olio comune da livello minimo jo Fig 7 ah If two levels are present activation of the solenoid valve occurs when the maximum level is activated and remains activated in intermittent mode with settable opening and closing times for the entire time in which the minimum level is not active If the minimum level signal is activated the valve remains deactivated until the maximum level is reactivated again as shown in the figure Minimum oil l level active Minimum oil level not active Maximum oil level active Maximum oil level not active Common oil solenoid ACTIVE Common o
129. ecovery from digital input DI position line 1 01 18 B1 B10 Eeaa02 Status Heat recovery from digital input DI status line 1 Closed Open Logic Heat recovery from digital input DI logic line 1 NC NC NO Function Heat recovery from digital input function status line 1 Not active Active DO Heat recovery pump DO position line 1 01 29 Feaa03 T e bs Function Heat recovery pump DO status line 1 Not active Active AO Heat recovery damper DO position line 1 gt 01 29 Feaa04 ixi dus TN uis T Status Heat recovery damper DO status line 1 Not active Active Heat recovery output temperature probe position line 1 B1 B1 B10 NIC PT1000 0 1 V 0 10 V Heat recovery output temperature probe type line 1 4 20MA 4 20 mA 0 5 V HTNTC Eeaa05 display only Heat recovery output temperature value line 1 id Max limit Heat recovery output temperature maximum value line 1 30 0 barg ma Min limit Heat recovery output temperature minimum value line 1 0 0 barg PE ue Calibration Heat recovery output temperature probe calibration line 1 0 0 barg P Setpoint compensation for heat recovery probe position line 1 BI B1 B10 NTC PT1000 0 1 V 0 10 V Setpoint compensation for heat recovery probe type line 1 4 20MA 4 20 mA 0 5 V HINTC Eeaa06 display only Setpoint compensation for heat recovery value line 1
130. ed 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 7 4 9 Manual operation pRack pR100T can manage 3 different compressor manual operating modes Enabling disabling Manual management e Output test Enabling disabling is managed in main menu branch Ca f C bff 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 21 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 Fig 7 q The output test is used to activate or deactivate th
131. ence therefore avoid installing the units near transmitting antennae exposure of the pRack pR10OT to direct sunlight and to the elements in general large and rapid fluctuations in the room temperature e environments containing explosives or mixes of flammable gases exposure to dust formation of corrosive patina with possible oxidation and reduction of insulation Positioning the instrument inside the panel The position of the instrument in the electrical cabinet must be chosen 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 The structure of the panel must allow the correct flow of cooling air 4 1 2 Wiring procedure 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 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 same panel For the control Signals it is recommended to use shielded cables with twisted wires If the control cables have to cross over the power cables the intersections
132. eneric modulating function 2 TN usi Differen Regulation differential for generic modulating function 2 De e Mode Regulation mode for generic modulating function 2 direct or reverse D R Status Status of generic modulating function 2 0 0 100 0 Reg variab Value of the regulation variable for generic alarm function 1 Active Not active Enable Status of the enabling variable for generic alarm function 1 Active Not active Aaau display only Type Type of alarm for generic alarm function 1 Normal Serious Delay Regulation differential for generic alarm function 1 S 0 9999 Status Status of generic alarm function 1 Active Not active Reg variab Value of the regulation variable for generic alarm function 2 Active Not active Enable Status of the enabling variable for generic alarm function 2 Active Not active Aaav display only Type Type of alarm for generic alarm function 2 Normal Serious Delay Regulation differential for generic alarm function 2 S 0 9999 Status Status of generic alarm function 2 Active Not active Day Day of the week Monday Sunday EJ gt n Enabling and definition of time band 1 start hour and minute end hour and _ Aaaw display minute for the generic scheduling function only G Enabling and definition of time band 4 start hour and minute end hour and m j minute for the generic scheduling function Status Status of the general scheduling
133. ensation suction line 1 NO NO YES compensation Cad02 Winter offset Offset applied for the Winter period 0 0 9999 9999 Closing offset Offset applied for closing period 0 0 9999 9999 Cad03 Enable setpoint Enable scheduler setpoint compensation NO u NO YES compensation by scheduler suction line 1 Day Day of the week MON TUE SUN TBI cS cie Enabling and definition of time band 1 start hour and minute end hour and D j minute suction line 1 TBA gt Enabling and definition of time band 4 start hour and minute end hour and Cad04 minute suction line 1 SAVE CHANGES Change Time band change action a LOAD PREVIOUS CLEAR ALL MONDAY SUNDAY MON FRI Copy to Copy settings to other days 0 MON SAT SAT amp SUN ALL Cad05 Change set by DI Enable setpoint compensation by digital input suct cond line 1 NO NO YES Cad08 AI Enable floating setpoint suction line 1 NO NO YES Cad09 Maximum floating setpoint Max settable floating setpoint line 1 9 al Minimum floating setpoint Minimum settable floating setpoint line 1 9 i Max setpoint variation uu i ip Cad10 accepted Maximum variation allowed for floating setpoint suction line 1 E A uu Offline decreasingtime Reduction time when supervisor is offline for floating setpoint suction line 1 O min 0 999 Cae01 Number Gralak faradh Number of alarms for each compressor line 1 1 4 0 4 7 compressor l Dl Not av
134. es 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 pR100T can manage an alarm digital input from ChillBooster the effect of which is to deactivate the device As the number of operating hours of ChillBooster is critical as regards formation of scale on the condenser pRack pR100T 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 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
135. es 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 e 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 e Suction temperature probe on line 2 Discharge temperature probe on line 2 Analogue outputs pRack pR100T assigns in order Compressor inverters for 1 or 2 lines Fan modulating devices for 1 or 2 lines 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 pR100T 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 CAREL 6 USER INTERFACE 6 1 Graphic terminal The pRack pR100T user interface is represented by the pGDE terminal panel or built in versions The functions associated with the 6 buttons on the pGDE terminal are the same on all the screens and are described in the table below Functions of the 6 buttons Button Function associated ispl he list of active alarms an he alarm A ALARM i ays the list of active alarms and accesses the ala Menu u
136. esetting the user default values pRack pR100T 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 pR100T 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 A Important e the Carel default reset procedure totally deletes the pRack pR100T permanent memory and consequently is an irreversible operation the user values cannot be reset after updating the software on the pRack pR100T see Chapter 10 7 17 2 Resetting the Carel default values The Carel default values are shown in the Parameters table The values pre set by Carel can be installed at any time restoring the pRack pR100T default settings and requiring the startup procedure described in Chapter 4 to be repeated Important the Carel default reset procedure totally deletes the pRack pR100T permanent memory and consequently is an irreversible operation nonetheless the user settings can still be restored if these have already been saved Given that pRack pR100T 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
137. eshold as illustrated in the figure Setpoint HPV Prec Max Fig 7 aa 7 6 9 Summary of inputs outputs and HPV valve par The following is a summary table of the inputs outputs used and the parameters with indications of the related configuration screens For details refer to Appendix A 1 Summary of inputs outputs and HPV valve parameters Mask Bab04 Daa39 Bab61 Daa43 Description Gas cooler pressure Gas cooler output temperature Bab09 Daa40 Gas cooler backup pressure Bab62 Daa44 Gas cooler output backup temperature Digital inputs Baade Eia04 HPV valve alarm Analog outputs Bad14 Eia06 HPV valve output Digital outputs nee Analog inputs Parameters HPV valve management enabled or transcritical operation mode enabled Selecting the type of algorithm to apply to the calculation of the pressure setpoint P upper pressure limit P Pressure for defining the upper proportional zone P sic Optimal pressure calculated at the passage temperature between the intermediate zone and transcritical zone T temperature limit between the transcritical zone and intermediate zone T temperature limit between the intermediate zone and subcritical zone T temperature for defining the lower proportional zone T ooy temperature for defining the complete opening zone of the valve Subcooling delta for optimized regulation Settings EibO1 Fib05 Zone
138. essor NONE IDO5 Modulate speed device Modulating device for first compressor line 1 NONE F ee SERRE NEREO P DIGITAL SCROLL CONTINUOUS 51 pRack pR100T 0300022EN rel 1 0 21 01 2015 CAREL Mask index Display description Description Default UoM Values SAME SIZE SAME SIZE amp SAME PARTIAL Ib30 Compress size Compressors sizes line 1 amp SAME eee SAME SIZE amp DIFFERENT PARTIAL PARTIAL DEFINE SIZES YES NO YES 51 Enable size and size for compressor group 1 line 1 100 lw 0 0 5000 Ib34 TE cda l NO NO YES S4 Enable size and size for compressor group 4 line 1 M lw 0 0 5000 Ve B NO YES S1 Enable stages and stages for compressor group 1 line 1 100 Y 100 50 100 50 75 100 25 50 75 100 33 66 100 Ib35 S4 Enable stages and stages for compressor group 4 line 1 Pe m gt C01 Size for compressor 1 or presence of inverter line 1 S1 gt S1 S4 INV 1536 us is Eus n C12 Size for compressor 12 line 1 S1 51 54 GENERIC Comp Manuf Screw compressor manufacturer GENERIC ZE Ib10 P P REFCOMP HANBELL Compressor series Compressor series PR d Ad Ib11 Compress size Compressors sizes line 1 SAME SIZE a iai P DEFINE SIZES l Yes EE NO YES S1 Enable size and size for compressor group 1 line 1 _ KW 0 0 5000 I
139. essure 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 7 8 1 Set point compensation Compensation from 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 Closing periods defined by the scheduler activation of a digital input or supervisor e 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 pRack pR100T 0300022EN rel 1 0 21 01 2015 26 CAREL Digital Input ex day night Setpoint User setpoint 0 5 barg
140. et type MANUAL MANUAL AUTO Swith off comp Enable compressor shutdown when high pressure receiver alarm occurs NO NO YES Enable HPV set point ma Eib26 EON Set point variation Heat Reclaim NO YES Max setp Maximum set point nea nn um noiSei HPV valve maximum set point regulation Eib28 Minimum HPV set point HPV valve minimum set point regulation 40 0 barg 247 PISIS ION a Enable low temperature control NO NO YES controller Receiver pressure threshold Threshold pressure for the gas cooler when the Heat Reclaim is ON Eib31 Time Time during which this threshold remains active ane eue Var delta Allowed variation Ee ee Max HPV valve opening l l d Eib32 percente HPV valve maximum opening 0 0 0 100 0 Max delta HPV valve maximum variation per second 0 0 0 100 0 HPV Valve Enable EVS management of HPV valve ENABLE ENABLE DISABLE RPPV Valve Enable EVS management of HPV valve RPRV ENABLE ENABLE DISABLE EVD address Driver address managed in FBUS from pRack 198 0 207 EicO1 Single A gt HPV Single A gt RPRV Valves routing Valve type driver association Twin A gt RPRV B gt HPV Twin A gt HPV B gt RPRV EVD Status Driver connection to pRack status connected not connected CAREL EXV CUSTOM Danfoss HPV Valve type HPV valve type CAREL EXV CCMT Danfoss ICMTS 0 10V CAREL EXV CUSTOM Danfoss Eic02 ETS 400 Danfoss ETS 250 Danfoss ETS 100B Danfoss RPRV Valve type RPRV va
141. eters Settings Eib18 Enable RPRV valve management Regulation setpoint for the CO2 receiver pressure Proportional gain for the proportional integral requlation of the RPRV valve Integral time for the proportional integral regulation of the RPRV valve Min opening of the RPRV valve with the unit OFF Min opening of the RPRV valve with the unit ON Opening of the RPRV valve at start up during pre positioning Pre positioning duration Maximum opening of the RPRV valve Maximum variation per second allowed for the RPRV valve output HPV valve safety position Enable RPRV valve closure when all compressors on line 1 are off RPRV valve closure delay when all compressors on line 1 are off Receiver high pressure threshold alarm Receiver high pressure differential alarm Receiver high pressure alarm delay Receiver high pressure alarm reset type Enable compressor shutoff with receiver high pressure alarm Regulation Eib22 Fib19 Fib20 Eib21 Eib23 Safeties Fib24 Fib25 Tab 7 f 7 8 Energy saving pRack pR100T 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 ime band Supervisor In addition the suction pr
142. fans line 1 4 0 16 Line 2 Number of fans line 2 0 gt 0 16 Ic09 LV PRC Poara far Condensing lines in separate boards NO NO YES Ic10 display only Boards needed pLAN boards needed for the selected configuration ido1 Save configuration Save Manufacturer configuration NO NO YES Load configuration Install Manufacturer configuration NO NO YES Id02 Reset Carel default Install default Carel configuration NO NO YES According to compressor type According to unit of measure selected According to compressor manufacturer refer to the related paragraph According to hardware size 53 Tab 8 j pRack pR100T 0300022EN rel 1 0 21 01 2015 8 2 Alarm table pRack pR100T can manage both alarms relating to the status of the digital inputs and to system operation similar to the pRack pR300 For each alarm the following are controlled The complete list of alarms for the pRack pR100T with the related information as described above is reported below The actions on the devices if necessary The output relays one global and two with different priorities if configured The red LED on the terminal and the buzzer where present The type of acknowledgement automatic manual semiautomatic Any activation delay CAREL Code Description Reset Delay Alarm relay Action ALA01__ Discharge temperature probe malfunction Automatic 605 R2 Relate
143. fe11 Passive generic probe C pRack pR100T 0300022EN rel 1 0 21 01 2015 62 CAREL Analog inputs Mask index Description Channel Type Notes x Bab25 Efe12 Active generic probe D o 5 Bab26 Efe13 Passive generic probe D 5 E Bab27 Efe14 Active generic probe E Bab28 Efe15 Passive generic probe E Tab 8 n Analog outputs Mask index Description Channel Type Notes Bad01 Caa14 Compressor inverter output line 1 Bad02 Eaaa14 Oil pump output line 1 Bad07 Daa38 Inverter fan output line 1 Bad08 Eeaa04 Heat recovery valve output line 1 5 Bad12 Efe29 Modulating generic output 1 Eaaal Oil cooling pump output screw compressor 1 Bad14 Eia06 HPV valve output Bad15 Eia07 RPRV valve output Bad04 Compressor inverter output line 2 Bad05 Eaba14 Oil pump output line 2 Bad10 Dba37 Inverter fan output line 2 Bad11 Eeba04 Heat recovery valve output line 2 Bad13 Efe30 Modulating generic output 2 Eaaa20 Oil cooling pump output screw compressor 2 Tab 8 0 63 pRack pR100T 0300022EN rel 1 0 21 01 2015 CAREL 9 ALARMS pRack pR100T 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 e The actions on the devices if necessary e The output relays one global and two with different priorities if configured
144. g Type Compressor regulation type line 2 ZONE DEAD ZONE Cbc01 e VOBSIRARO Compressor 1 operating hours line 2 0 999999 Enable suction setpoint Cbd01 Enable setpoint compensation suction line 2 NO NO YES compensation Cbe01 Number or alanneior ead Number of alarms for each compressor line 2 1 0 4 compressor Compressor type Type of compressors line 2 RECRIPRO e RECIPROCATING Cbf02 P yP yP P CATING SCROLL Number of compressors Number of compressors line 2 2 3 1 12 Minimum voltage Voltage corresponding to the minimum capacity of the inverter line 2 00 Hz 0 0 10 0 Maximum voltage Voltage corresponding to the maximum capacity of the inverter line 2 10 0 Hz 0 0 10 0 Cbg01 Nominal freq Nominal frequency frequency at nominal capacity line 2 50 Hz 0 150 iena w capacity for compressor managed by inverter at nominal frequency 100 Kw 0 0 500 0 Tab 8 d Mask index Display description Description Default lUoM_ Values onaenmzserz The I Os depend on the configuration selected the following are only examples See Appendix A 1 for the complete list and position of the I Os DI Fan 1 overload DI position line 1 01 18 B1 B10 Status display only Fan 1 overload DI status line 1 ee Laagi Logic Fan 1 overload DI logic line 1 NC NC NO i Not active Function display only Fan 1 overload function status line 1 Active
145. gulation probe value Force off Setpoint Fig 7 f 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 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 pRack pR100T 0300022EN rel 1 0 21 01 2015 18 CAREL For control in Neutral zone the parameters shown in the figure must be set NZ timings Decrease Neutral L Increase zone zone zone Max time 100 Max time 0 Min time 0 Min time 100 probe value Setpoint Fig 7 9 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 equ
146. h continuous capacity _ modulation 0 999 35 pRack pR100T 0300022EN rel 1 0 21 01 2015 CAREL Mask index Display description Description Default UoM Values Off Stage 2 Actual status Actual status of screw compressor 2 Start Up Stage 3 Stage Stage 4 Off Stage 2 Aa62 display only Req Status Requested Status for screw compressor 2 sa Start up Stage 3 Stage Stage 4 Min time on Countdown for minimum startup time for screw compressor 2 S 0 999 Mieten Countdown for minimum shutdown time or delay between subsequent si 0 999 startups for screw compressor 2 Next step Countdown for next stage startup for screw compressor 2 S 0 999 Valve status First valve status 1 a Open Close Stand by Aa63 Valve opening First valve opening 1 a 0 100 Valve position First valvce position 1 a steps __ 0 450 Valve staus Second valve status 1 b Open Close Stand by Aa64 Valve opening Second valve opening 1 b 0 100 Valve position Second valve position 1 b steps _ 0 450 S1 probe Driver pressure probe S1 driver connected in Fieldbus bar 290 2900 Aa65 S2 probe Driver pressure probe S2 driver connected in Fieldbus C 870 2900 S3 probe Dri
147. h pressure temperature alarm delay line 2 60 S 0 999 Dbf01 Number of fans Number of fans line 2 3 0 16 NONE Dbg01 Modulate speed device Modulating condenser device type line 2 NONE INVERTER PHASE CUT OFF CONTROL Tab 8 e pRack pR100T 0300022EN rel 1 0 21 01 2015 44 CAREL Mask index Display description Description Default UoM Values E e O Haal duret iorns The l Os depend on the configuration selected the following are only examples See Appendix A 1 for the complete list and position of the I Os Oil temperature probe position line 1 B1 B1 BTO l NTC PT1000 0 1 V 0 10 V Oil temperature probe type line 1 4 20 mA 4 20 mA 0 5 V HTNTC display only Oil temperature value line 1 ci Max limit Maximum oil temperature value line 1 30 0 barg ii Min limit Minimum oil temperature value line 1 0 0 barg wr uo Calibration Oil temperature probe calibration line 1 0 0 barg n us DO Gil level valve compressor 6 DO position line 1 03 02999 Eaaa45 Status display only Oil level valve compressor 6 DO status line 1 gt Closed Open Logic Oil level valve compressor 6 DO logic line 1 NC NC NO Function display on
148. harge temperature line 2 m ail Unit status with unit OFF See individual line mask values Number compressors on with unit ON line 2 0 12 Compressor activation percentage with unit ON line 2 ini 0 100 Number of fans on with unit ON line 2 0 16 Fan activation percentage with unit ON line 2 0 100 Hour and minutes Date L1 Suction Suction pressure or temperature line 1 BT L1 Gas cool Gas cooler pressure or temperature line 1 c L2 Suction Suction pressure or temperature line 2 Main mask for L2 Condens Condensing pressure or temperature line 2 E double suction L1 Suc Temp Suction temperature line 1 a line and double L1 Superheat Superheating line 1 my condensing line L2 Suc Temp Suction temperature line 2 m ir one rmiskterbotl L2 Superheat Superheating line 2 C lines display only L1 Disch Temp Discharge temperature line 1 a dl L2 Disch Temp Discharge temperature line 2 aA Unit status with unit OFF See individual line mask values e Compressor activation percentage with unit ON line 1 see Dos TOO ees Compressor activation percentage with unit ON line 2 0 100 Fan activation percentage with unit ON line 1 0 to 100 Fan activation percentage with unit ON line 2 0 100 Hour and minutes Date cea a Suction pressure or temperature line 1
149. hen the function is deactivated pRack pR100T 0300022EN rel 1 0 21 01 2015 32 CAREL 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 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 7 17 Managing the default values pRack pR100T can manage two different sets of default values e user defaults e Carel defaults The two functions can be activated in main menu branch ld Important after having reset the default values the pRack pR100T board need to be switched off and on again 7 17 1 Saving and r
150. ial 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 f i CVSTDUTLFO ix ISOLATED o Cm sx 3 o 8 2 a S Compressor Rack Controller AOSLI1E input vo ai power ial d 24 V 410 1596 50 60 H ay ior TEAM serial card 1 lt t w 2 Z Z uym oz gt GB Z l 5 G OG POWER SUPPLY Fig 10 a Note for further details see the pRack Manager program online help pRack pR100T 0300022EN rel 1 0 21 01 2015 CAREL 11 SOFTWARE UPDATE AND CONFIGURATION 11 1 Smart Key operating instructions start mode Programming the Smart Key via Personal Computer The operating modes described in the table below can be configured using a program on the PC The program can also load the software to the key or transfer logged data from the controller to disk Type Function Mode button Update software from key to pRack BIOS application parameters etc asus ce Copy software from pRack to pRack Switches the key from write BIOS application parameters etc mode to read mode Default mode The key is factory programmed in read write mode type C so that it can be used immediately to transfer software from o
151. ic function in stage 1 NW ui Mode Requlation mode for the generic function in stage 1 direct or reverse D R Status Status of the generic function in stage 1 Active Not active Reg var Value of the regulation variable for the generic function in stage 5 P d Enable Status of the enabling variable for the generic function in stage 5 Active Not active Raat iso T Setpoint Regulation setpoint for the generic function in stage 5 T M ui alee Om Diff ee Requlation differential for the generic function in stage 5 cu m7 Mode Regulation mode for the generic function in stage 5 direct or reverse D R Status Status of the generic function in stage 5 Active Not active Reg variab Value of the requlation variable for generic modulating function 1 E A cs Enable Status of the enabling variable for generic modulating function 1 Active Not active Aaas display only Setpoint Regulation setpoint for generic modulating function 1 m ut Differen Requlation differential for generic modulating function 1 T NE ud Mode Requlation mode for generic modulating function 1 direct or reverse D R Status Status of generic modulating function 1 0 0 100 0 Reg variab Value of the regulation variable for generic modulating function 2 js xil Enable Status of the enabling variable for generic modulating function 2 Active Not active Aaat display only Setpoint Regulation setpoint for g
152. il solenoid NOT ACTIVE Fig 7 ai Gestione olio comune da livello minimo e massimo Lv Wq Fig 7 aj 27 pRack pR100T 0300022EN rel 1 0 21 01 2015 If no oil level input is present activation of the solenoid valve occurs intermittently for the entire time in which at least one compressor is active The opening and closing times of the valve during activation can be set by a parameter In any case if the pressure difference between the oil receiver and suction is less than a settable threshold for at least a settable time the solenoid can be forced in intermittent mode with settable times It is also possible to set different delay times to be applied during normal operation or when the pressure difference exceeds the threshold in order to ensure pressurization of the receiver It is also possible to configure a Oil Receiver Pressure probe in Inputs Outputs menu Inputs Outputs gt Status gt Analo Inputs gt Mask Bab63 and a digital output called Oil Reserve following the same path Inputs Outputs gt Status gt Digital Outputs gt Mask Bac71 for controlling the solenoid valve between separator and oil receiver looking at this oil receiver pressure Once that this probe is enabled it is possible to set a Differential Threshold between this probe pressure value and the suction pressure value in the Other functions menu Other functions gt Oil gt Settings gt Mask
153. il alarm delay line 1 0 0 999 Gca05 Output relay alarm Selection of output relay alarm activation with active alarms or alarms not ACTIVE ACTIVE ALARMS activation with reset ALARMS ALARMS NOT RESET The following parameters refer to line 2 for details see the corresponding parameters for line 1 above Gbb01 Enable prevent Enable high pressure condensing prevent line 2 NO NO YES Gcb01 Common HP type Type of reset for common HP alarm line 2 AUTO AUTO MAN Common HP delay Common high pressure delay line 2 10 S 0 999 Tab 8 h Mask index Display description Description Default UoM Values Ver Software version and date H01 display only Bios Bios version and date ae Boot Boot version and date Board type Hardware type ud Size Hardware size FLASH mem Flash memory size kB H02 display only Ran RAM memory size kB Built in type Built in display type None PGDE Cycle time Number of cycles per second and cycle time software n Tab 8 i Mask index Display description Description Default UoM Values fmm SUCTION I01 Type of system Type of system i y CONDENSER j SUCTION CONDENSER Ib02 Units of meas Units of measure C barg C barg F psig RECRIPRO RECIPROCATING Compressor type Type of compressors line 1 SCROLL Ib03 CATING SCREW Number of compressors Number of compressors line 1 2 3 1226712 Ib04 MUTA a L SON Number of alarms for each compressor line 1 1 0 4 7 compr
154. index Description Channel Logic Notes Baace Heat recovery line 2 Baadg Egba01 ChillBooster fault line 2 Baade Enable floating condenser line 2 Baacm Cbd06 Dbd08 Setpoint compensation line 2 Baacn pRack automatic or manual operation status Dba52 Anti noise line 2 gt Dba53 Split condenser line 2 v Eeba02 Heat recovery activation line 2 amp Eaba15 Maximum receiver oil level line 2 Eabal6 Minimum receiver oil level line 2 O Eabal7 Oil level compressor 1 line 2 Eaba18 Oil level compressor 2 line 2 Eaba19 Oil level compressor 3 line 2 Eaba20 Oil level compressor 4 line 2 Eaba21 Oil level compressor 5 line 2 Eaba22 Oil level compressor 6 line 2 Baacf Efe16 DI generic input F Baacg Efe1 7 DI generic input G S v Baach Efe18 DI generic input H i amp Baaci Efe19 DI generic input I Baacj Efe20 DI generic input J Tab 8 1 Digital outputs Mask index Description Channel Logic Notes Bac02 Caa08 Bac03 Caa09 Line relay compressor 1 line 1 Partwinding Star relay compressor 1 line 1 Valve 1 compressor 1 line 1 Delta relay compressor 1 line 1 Bac04 Caa10 Valve 2 compressor 1 line 1 Bac05 Caa11 Valve 3 compressor 1 line 1 Bac07 Caa12 Equalization 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 compress
155. ing line 2 Automatic Not present Not present _ ALWOS Fan inverter warning Automatic Not present Not present ALWO6 _ Fan inverter warning line 2 Automatic Not present Not present ALWO7__ Envelope warning refrigerant not compatible with compressor series Automatic Not present Not present ALWO8_ Envelope warning custom envelope not configured Automatic Not present Not present __ ALWO9 Envelope warning suction or condensing probes not configured Automatic Not present Not present __ ALW10 Low superheat warning Automatic Not present Not present ALW11 Low superheat warning line 2 Automatic Not present Not present ALW12_ Warning ChillBooster operating without external probe Automatic Os Not present _ ALW13_ Warning ChillBooster operating without external probe line 2 Automatic Os Not present _ ALW14_ Warning probe type configured not allowed Automatic Not present Not present __ ALW15_ Warning error during autoconfiguration Automatic Not present Not present _ ALW16_ Warning oil receiver levels not configured correctly line 1 Automatic R2 ALW17 Warning oil receiver levels not configured correctly line 2 Automatic R2 ALW18 Probe SX fault Automatic Not present Not present Lepengs on me rons SA alarm management parameter Replace the ALW19 EEPROM damaged driver Contact Not present Not present Total shutdown service ALW20 _ Valve motor error automatic Not present Not present Interruption ALW21 Driver OFFLI
156. ing from the installation use or impossibility to use the product even if CAREL or its subsidiaries are warned of the possibility of such damage DISPOSAL 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 e WEEE cannot be disposed of as municipal waste and such waste must be collected and disposed of separately the public or private waste collection systems defined by local legislation must be used In addition the equipment can be returned to the distributor at the end of its working life when buying new equipment the equipment may contain hazardous substances the improper use or incorrect disposal of such may have negative effects on human health and on the environment the 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 Warranty on the materials 2 years from the date of production excluding consumables Approval the quality and safety of CAREL INDUSTRIES Hqs products are guaranteed by the ISO 9001 certified design and produ
157. ing on the low temperature line the DSS forces at least one of the compressors in the medium temperature L1 line to turn on at minimum power The low temperature L2 line thus has greater priority in relation to the request coming from the regulation for the medium temperature L1 line Turning off the low temperature line Turning off the low temperature line is forced by the DSS if a serious alarm occurs which turns off all of the alarms in the medium temperature line or in general if the medium temperature line is OFF Enable pump down on medium temperature line During normal compressor rack operation when at least one compressor on the low temperature line is running the medium temperature compressor control will enable pump down If there is demand the minimum capacity step will be guaranteed only if the medium temperature line suction pressure is below a set threshold Note in the event of failure of the pLAN network the DSS is disabled 7 15 EEVS Electronic Expansion Valve Synchronization The new software for managing transcritical systems features the possibility to manage the 2 stepper valves for high pressure and flash gas control directly from the pRack controller The built in driver on PRK30TD controllers or the external driver EVD is controlled via fieldbus Direct communication between controller and driver is used to synchronise compressor rack operation and electronic expansion valve control Communication is ma
158. ingLog CSV file used for the commissioning log containing data of the variables logged during monitoring Therefore to configure Commissioning the following files are required 2CF 2CD and if necessary the DEV file which can be imported or exported For monitoring purposes in addition to the files above it might also be necessary to have the 2CW file containing the definition of the work environment The commissioning log file is a simple output file 11 2 6 pRackLoad basic concepts pRackLoad is the module that manages uploading to the flash memory of the device or of the ProgKeyX key installed on the pRack uploading to the NAND memory of certain devices e downloading the log file DEV file and P memory from the flash memory downloading files from the NAND memory if present The files exchanged with the Flash memories of pRack controllers are e BOOTBIN download reserved upload enabled from menu BIOS BIN download reserved e lt nomeApplicativo gt BLB reserved e nomeApplicativo BIN lt ApplicationName gt BIN download reserved e nomeApplicativo DEV lt ApplicationName gt DEV e nomeApplicativo GRT ApplicationName GRT upload only from which the GRP file is extracted e nomeApplicativo IUP ApplicationName IUP e nomeApplicativo LCT lt ApplicationName gt LCT e lt nomeApplicativo gt PVT lt ApplicationName gt PVT e lt nomepRacklog gt BIN
159. input signal crosses zero and the Tab Da corresponding frequency in Hz button sized lithium battery code CR2430 3 Vdc dimensions 24 mm x 3 mm Specifications of the normal and fast digital input The maximum current available to the digital input is 5 mA consequently 2 4 Analogue inputs the rating of the external contact must be at least 5 mA Maximum lenght cable 10 m Analogue conversion A D converter 10 bit CPU built in CAREL NTC 50T90 C R T B1 B2 B3 B4 B5 B6 ee E 2 6 Analogue outputs QUAU Maximum lenght cable 10 m Voltage O to 1 Vdc B1 B2 B3 B4 B5 B6 Type Not optically isolated Voltage O to 5 Vdc B1 B2 B5 B6 Power supply Internal ratiometric B1 B2 B5 B6 0 to 10 Vdc analogue output Y2 Y3 YA Voltage 0 to 10 Vdc B1 B2 PWM analogue output with 5 Vdc pulse of YI Current 0 to 20 MA or 4 B3 B4 programmable duration to 20 mA Total 4 PT1000 1001200 C R T Tab 2e 1000 Q at 0 C Voltage free digital input B5 B6 Specifications 5 mA Resolution 8 bit Total 6 Precision 2 of full scale on Y2 Tab 2 b Settling time 2s Maximum load 1 kQ 10 mA for Y2 0 to 10V 4700 10 mA for Y1 PWM Tab 2 f A warning for the power supply to any active probes the 21 V available on the VDC terminal can be used maximum current available Imax 60 mA protected against short circuits For the power supply to the 0 to 5 Vdc ratiometric probes
160. ive parameters can be set from main menu branch E a a E a b 7 10 1 Oil cooler An oil cooler can be managed in order to keep the oil temperature under constant control For each compressor based on the value read by the oil temperature probe an oil cooler digital output can be activated with a settable threshold and differential as shown in the figure Individual compressor oil management Cil cooler Oil temperature Differential Fig 7 af For each compressor two alarms can also be managed for high or low oil temperature setting the threshold differential and delay Setpoint Oil injection An oil injection valve can be managed as shown schematically for three compressors in Fig 6 ah Valve activation is performed when the corresponding oil level digital input is active The valve is opened in intermittent mode with settable opening and closing times for a total time that is also settable Once exceeded if the digital input is still active a low oil alarm is generated When the oil level digital input is not active the valve is activated with opening and closing times which can be set at a different value in order to allow the passage of a certain quantity of oil 7 10 2 Oil management per line A solenoid valve can be managed which connects the oil separator to the receiver based on the digital input reading of the oil level which can be only minimum level or minimum and maximum level Separator r
161. ized line 25 e 999 9 999 9 mask Eib04 P1 Proportional gain for the proportional integral regulation of the HPV valve _ 15 barg barg 0 100 11 Integral time for the proportional integral regulation of the HPV valve 60 S 0 9999 EibO7 PHR Proportional gain for the proportional integral regulation of the HPV valve 5 baro barg 0 100 with heat recovery IHR Integral time for the proportional integral regulation of the HPV valve with 60 i 0 9999 heat recovery Eib08 Enable HPV setpoint filter Enabling of the filter action on the HPV valve setpoint NO NO YES Number of samples Number of samples 5 0 99 Eib28 Minimum HPV setpoint Minimum HPV valve regulation setpoint 40 0 barg ge NT dui Enable low temp control Enable low temperature control NO NO YES Enable mgmt of HPV with Enabling of the various management of the HPV valve during heat recovery uM NO NO YES HR activation Eib09 HR setp Setpoint regulation of the HPV valve during heat recovery 90 0 barg Da EX Post HR Dt Time scale for the setpoint reset procedure after heat recovery 0 1 S 0 999 Post HR DP Pressure scale for the setpoint reset procedure after heat recovery 1 0 barg TES ai Eib10 HPV valve safety position __ HPV valve safety position 50 0 00 100 0 Eib1i Gas cooler temp delta with Offset to be applied to the external temperature in the event of gas cooler 0 0 C 4 probe error pressure probe error j il Eib12 a a ale HPV valve safety procedure
162. lay High alarm delay for generic modulating function 1 0 S 0 9999 Alarm type Low alarm type for generic modulating function 1 NORMAL NORMAL SERIOUS Low alarm Low alarm enabling for stage 1 generic function DISAB DISAB ENABLE Efb20 Low alarm Low alarm threshold for stage 1 generic function 0 0 C P uu Delay Low alarm delay for stage 1 generic function 0 S 0 9999 Alarm type Low alarm type for stage 1 generic function NORMAL NORMAL 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 Efb10 Cut off enable Enable cut off function for generic modulating function 1 NO NO YES Cutoff Diff Cut off differential for generic modulating function 1 0 0 C i Cutoff hys Cut off hysteresis for generic modulating function 1 0 0 C Nu Out upper limit Output upper limit for generic modulating function 1 100 0 96 0 100 Out lower limit Output lower limit for generic modulating function 1 0 0 0 100 Efb15 Cut off enable Enable cut off function for generic modulating function 1 NO NO YES Cutoff Diff Cut off differential for generic modulating function 1 0 0 C e nasl Cutoff hys Cut off hysteresis for generic modulating function 1 0 0 C m uci Efc05 Gen Alarm 1 Enable generic alarm function 1 DISAB DISAB ENABLE Gen Alarm 2 Enable generic alarm function 2 DISAB DISAB ENABLE Regulation variable Moni
163. le special days management NO NO YES Closing per Enable closing period management NO NO YES Esai Start Summer start date 01 JAN 31 DEC End Summer end date 01 JAN 31 DEC Faaa03 Day 1 Special day 1 date 01 JAN 31 DEC Faaa04 Day 10 Special day 10 date gt 01 JAN 31 DEC PI P1 closing period start date 01 JAN 31 DEC P1 closing period end date 01 JAN 31 DEC Faaa05 T ae T P5 P5 closing period start date 01 JAN 31 DEC P5 closing period end date 01 JAN 31 DEC DD MM YY Faab01 Date format Date format DD MM YY MM DD YY YY MM DD Faab02 Faab03 Hour Hour and minutes Date Date om Faab04 Day display only Day of the week calculated from the date se Monday Sunday Daylight savings time Enable daylight savings time DISAB n DISAB ENABLE Faab05 Transition time offset time 60 0 240 Start Daylight savings time starting week day month and time e End Daylight savings time ending week day month and time NT Fb01 Language Current language ENGLISH Fb02 setup ali Disable the change language screen at startup YES NO YES Countdown Starting value for countdown time change language screen active 60 0 60 LINE 1 Fb03 Main mask selecti Mai lecti LINE 1 ain mask selection ain screen selection DOUBLE SUCT DOUBLE COND Address Address of the supervisory system line 1 196 0 207 CAREL SLAVE LOCAI Fca01 p S cat total ine CAREL SLAVE CAREL SLAVE REMOTE ca rotoco upervisor commu
164. line 1 Bacdz Ecaa11 Edaa11 Liquid injection valve Economizer compressor 5 line 1 Bacea Ecaa12 Edaa12 Liquid injection valve Economizer compressor 6 line 1 Bacei Forcing from BMS line 1 Bacej Non return of liquid line 1 Bacek Ebaa01 Subcooling line 1 Eaaal5 Oil cooling pump screw compressor 1 line 1 Eaaal6 Oil cooling fan screw compressor 1 line 1 Eaaal8 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 Eaaa41 Oil level valve compressor 2 line 1 n Eaaa42 Oil level valve compressor 3 line 1 6 Eaaa43 Oil level valve compressor 4 line 1 E Eaaa44 Oil level valve compressor 5 line 1 2 Eaaa45 Oil level valve compressor 6 line 1 o Bac7 Oil receiver line 1 E Eaaa16 Oil cooling compressor 1 line 1 Eaaa19 Oil cooling compressor 2 line 1 Eaaa22 Oil cooling compressor 3 line 1 Eaaa25 Oil cooling compressor 4 line 1 Eaaa28 Oil cooling compressor 5 line 1 Eaaa31 Oil cooling compressor 6 line 1 Eaaa54 Common oil level valve line 2 Ebaa01 Subcooling valve line 1 Baceh Sign of life Bacem Normal alarm Bacen Serious alarm Line relay compressor 1 line 2 Bac73 Cba08 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 compressor 1 line 2 Bac76 Cba11 Valve 3 compressor 1 line 2 Bac78 Cba12 Equalization valve compressor 1 line 2 Line relay compressor 2 line 2 5 Bac 9
165. line 1 P ins vial Dab04 Fan Olt cast one Enable fan operation linked to compressor operation NO NO YES compressor works Cut off enable Enable fan cut off NO NO YES Cut off request Cut off value 0 0 0 0 100 0 Dab05 Setpoint Setpoint cut off T dd al Diff Differential cut off da UN T Hysteresis Hysteresis cut off M ud TK d Dab6 Dabs Reg Type Proportional regulation type condensing line 1 PROPORT PROPORTIONAL PROP INT A abe 7 Integral time Integral time for proportional regulation cond line 1 300 0 999 Dab7 Dab9 __ Differential Differential for proportional regulation cond line 1 iud aii n oa DZ diff Dead zone requlation differential line 1 PR uw ns adi Dab10 Dab11 Activ diff Dead zone regulation differential for device activation line 1 ul M d Deact diff Dead zone regulation differential for device deactivation line 1 P 9 pil Dab12 Dab13 En force off Enable capacity immediate decreasing to 0 line 1 NO NO YES Setp force off Threshold for capacity decreasing to 0 line 1 MT ow 9 Minimum time to increase capacity request to 10096 dead zone regulation Power to 10096 min time ups 15 0 9999 Dabl4 condensing line 1 aan Maximum time to increase capacity request to 100 dead zone regulation 90 0 9999 condensing line 1 Power reduction to 0 Minimum time to decrease capacity request to 0 dead zone regulation 30 0 9999 Dab15 min time condensing line 1 Power reduction to
166. load support 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 pR100T 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 file name gt DEV files that contain the user parameter configurations and that can be downloaded from the pRack pR100T 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 ser
167. lve type CAREL EXV ETS 50B Danfoss ETS 12 5 25B Danfoss CCM 40 Danfoss CCM 10 20 30 Danfoss ICMTS 0 10V Min steps Minimum valve step number 50 step 0 9999 Max steps Maximum valve step number 480 step 0 9999 A closing steps Valve closing steps 500 step ___ 0 9999 RAMO Nom step rate Valve nominal speed 50 step s 1 2000 Move current Nominal current 450 mA 0 800 Holding current Holding current 100 mA 0 250 Duty Cycle Valve duty cycle 30 0 100 Opening sincre Opening position synchronization YES YES NO EGOR PIANE Closing sincre Closing position synchronization YES des YES NO Em closing speed Valve emergency closing speed 150 step s 1 2000 Min steps Minimum valve step number 50 step 0 9999 Max steps Maximum valve step number 480 step 0 9999 Eic05 RPRV valve closing steps Valve closing steps 500 step 0 9999 Nom step rate Valve nominal speed 50 step s 1 2000 Move current Nominal current 450 mA 0 800 Holding current Holding current 100 mA 0 250 Duty Cycle Valve duty cycle 30 0 100 l Opening sincre Opening position synchronization YES l YES NO seo Closing sincre Closing position synchronization YES le YES NO Em closing speed Valve emergency closing speed 150 step s 1 2000 The following parameters refer to line 2 for details see the corresponding parameters for line 1 above Oil temperature probe position line 2 BI B1 B10 NIC PT1000 0 1 V 0
168. ly Oil level valve compressor 6 function status line 1 Not active Active Enable com cool Enable common oil cooling line 1 YES NO YES sia Number of oil pumps Number of oil pumps for common oil cooler ine 1 0 uus NO digital outputs Enable pump out Enable AO of common oil cooler pump line 1 YES VES analog out pu Eaab15 Enable cool Enable oil cooling compressors line 1 NO NO YES Oil cool off with comp off Oil cooling functioning only when compressor functioning NO NO YES Eaab05 Setpoint Common oil cooling setpoint line 1 0 0 C NM us Differential Common oil cooling differential line 1 0 0 C 9 9 99 Eaab06 Pump start delay Pump 2 start delay after pump 1 startup line 1 0 S 0 999 NOT CONF Eaab07 Oil pump config Oil pump output configuration none analog digital NOT CONF ANALOG DIGITAL Setpoint Oil temperature setpoint line 1 0 0 CAF Eaab08 Differential Oil temperature differential line 1 0 0 CE tess Duty on time Fan startup time in case of oil probe error line 1 0 S 0 9999 Duty off time Fan shutdown time in case of oil probe error line 1 0 S 0 9999 Threshold Common oil high temperature alarm threshold line 1 100 0 C uc eus Faab09 Differential Common oil high temperature alarm differential line 1 10 0 C ae a Delay Common oil high temperature alarm delay line 1 0 S 0 32767 Eaab10 Enable oil lev Enable oil level management line 1 NO gt NO YES Num oil level alarms Number
169. man French Spanish Russian Lingue Portoquese Swedish Temperature C F Unit of Pressure barg psig all pressure values are also converted eae to temperature Date format settable between dd mm yy mm dd yy mm dd Proportional band P PI available for compressors and fans Control Neutral zone available for compressors and fans FIFO Compressor LIFO rotation Timed Fixed the ON OFF order can be set as required Scheduling available heating cooling 4 daily time bands 5 special periods e g closing period 10 special days e g Scheduling by holidays calendar Schedulable functions set point compensation for compressors and fans split condenser heating cooling only anti noise heat recovery generic functions Compensation from digital input from scheduling floating based on supervisor parameter compressors or outside temperature fans High pressure including activation of heat recovery or ChillBooster Automatic and manual management Configurable compressor alarms Alarms Double Signal on digital outputs for high or low priority alarms Log from application pu peru Carel Modbus protocol Tab 1 a Setpoint Prevent 1 2 Components and accessories The pRack pR100T is available in compact size listed in the table for the detailed description of each size electrical characteristics and installation refer to Chapter 2 Hardware sizes Av
170. mperature line 1 10 0 C 99 9 99 9 9 Ext Temp Diff Split condenser differential by external temperature line 1 2 58C 99 9 99 9 CUSTOM ODD Type Fans enabled with split condenser line 1 CUSTOM EVEN Dag06 GREATER THAN LESS THAN u Only when enabling is GREATER THAN or LESS THAN the number of fans to 0 u 0 16 consider line 1 Disable split condenser as RctSstade i HP presse Disable split condenser when high condensing pressure prevent occurs line NO m NO YES Dag09 1 switch for Duration of split condenser deactivation for high pressure prevent line 1 0 h 0 24 Silencer Enable silencer line 1 DISAB s DISAB ENABLE Max output Maximum possible request when silencer is active line 1 75 0 96 06 0 0 100 0 Dag10 Controlled by a n Digital molt Silencer controlled by digital input condensing line 1 NO NO YES Scheduler Silencer controlled by scheduler condensing line 1 NO NO YES Day of the week gt MON SUN TBI Sa Enabling and definition of time band 1 start hour and minute end hour and un j minute condensing line 1 TB4 gt Enabling and definition of time band 4 start hour and minute end hour and Dag12 minute condensing line 1 SAVE CHANGES Change Time band change action gt LOAD PREVIOUS CLEAR ALL m mam n H MONDAY SUNDAY MON FRI b dA ca Ld MON SAT SAT amp SUN ALL Speed Up Enable speed up condensing line 1 YES NO YES Speed up time Speed up time con
171. mpressor shutdowns 0 S 0 999 Unloader delay Delay between stages 0 S 0 999 Caf13 Custom rotation on order Order of startup for compressor custom rotation 1 1 16 Caf14 Custom rotation off Order of shutdown for compressor custom rotation 1 Tiel None Caf15 Modulation device Compressor modulating device type line 1 None Lui J P J yp Digital scroll Stepless screw Caf16 Min frequency Minimum inverter frequency 30 Hz 0 150 Max frequency Maximum inverter frequency 60 Hz 0 150 Min time on Minimum time compressor controlled by inverter on line 1 30 S 0 999 Min time off Minimum time compressor controlled by inverter off line 1 60 S 0 999 Can 7 Minimum time to start Minimum time compressor controlled by inverter startup line 1 180 S 0 999 same comp ui n Optimized regulation Digita ca valve Digital Scroll compressor valve control type line 1 mia Variable cycle time Caf18 regulation regulation l Fixed cycle time Cycle time Cycle time line 1 13 S 12 20 Caf19 Oil dilution Enable Digital Scroll oil temperature alarm line 1 Enable gt Disable Enable Discharge temp Enable Digital Scroll discharge temperature alarm line 1 Enable Disable Enable Generic Manufacturer Screw compressor manufacturer Generic II Caf20 Mosen P RefComp Hanbell Compressor series Compressor series ER ue T ud Number of valves Number of valves used for capacity control screw compressor 1 B 1 4 Caf21 25 50 75 100 50 100
172. must be as near as possible to 90 degrees always avoiding running the control cables parallel to the power cables Use cable ends suitable for the corresponding terminals Loosen each screw and insert the cable ends then tighten the screws When the operation is completed slightly tug the cables to check they are sufficiently tight Separate as much as possible the sensor Signal digital input and serial line cables from the cables carrying inductive loads and power cables to avoid possible electromagnetic disturbance Never insert power cables including the electrical cables and probe Signal cables in the 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 spiral paths that enclose power devices avoid touching or nearly touching the electronic components fitted on the boards to avoid electrostatic discharges extremely damaging from the operator to the components if the power transformer secondary is earthed check that the earth wire corresponds to the wire that runs to the controller and enters terminal GO this applies to all the devices connected to the pRack pR100OT do not secure the cables to the terminals by pressing the screwdriver with excessive force to avoid damaging the pRack pR100T e for applications subject to considerable vibrations 1 5 mm pk pk 10 55 Hz se
173. n Autom Config Config Shutdown compressor 5 line 2 ALC86 Alarm 7 compressor 5 line 2 Man Autom Config Config Shutdown compressor 5 line 2 ALC87 Alarm 1 compressor 6 line 2 Man Autom Config Config Shutdown compressor 6 line 2 ALC88 Alarm 2 compressor 6 line 2 Man Autom Config Config Shutdown compressor 6 line 2 ALC89 _ Alarm 3 compressor 6 line 2 Man Autom Config Config Shutdown compressor 6 line 2 ALC90 _ Alarm 4 compressor 6 line 2 Man Autom Config Config Shutdown compressor 6 line 2 ALC91 Alarm 5 compressor 6 line 2 Man Autom Config Config Shutdown compressor 6 line 2 ALCO92 _ Alarm 6 compressor 6 line 2 Man Autom Config Config Shutdown compressor 6 line 2 ALC93 _ Alarm 7 compressor 6 line 2 Man Autom Config Config Shutdown compressor 6 line 2 ALC94 Alarm 1 compressor 7 line 2 Man Autom Config Config Shutdown compressor 7 line 2 ALC95 _ Alarm 2 compressor 7 line 2 Man Autom Config Config Shutdown compressor 7 line 2 ALC96 Alarm 1 compressor 8 line 2 Man Autom Config Config Shutdown compressor 8 line 2 ALC97 Alarm 2 compressor 8 line 2 Man Autom Config Config Shutdown compressor 8 line 2 ALC98 Alarm 1 compressor 9 line 2 Man Autom Config Config Shutdown compressor 9 line 2 ALC99 _ Alarm 2 compressor 9 line 2 Man Autom Config Config Shutdown compressor 9 line 2 AlCaa Alarm 1 compressor 10 line 2 Man Autom Config Co
174. naged inside the controller on PRK30TD codes or via RS485 serial for external drivers One single interface pRack can thus be used to monitor set the main parameters for the EVDEVO and view them via the supervisor Modbus communication The FIELDBUS DRIVER offers the possibility to use 4 additional analogue inputs S1 2 53 and S4 directly from pRack Where S1 Probe 1 52 Probe 2 53 Probe 3 54 Probe 4 pressure or external 4 to 20 mA signal temperature or external O to 10 V signal pressure temperature A gt 7 15 1 HPV and RPRV valve connection The HPV and RPRV valves can be connected directly controlling the valves using a 0 10 V output on pRack pR100T a z UO sog esass zZ z G 0 10V 0 10V J12 J13 Fig 7 aq via an EVD EVO driver configured as 0 to 10 V positioner to control Carel stepper valves pressure less than 45 barg or third party valves Rig 2 f EVD pRack pR100T connections E e pad EI o 230 Vac 222 DAB AE A 9 35 VA J14 TRADRFE240 dedicated Fig 7 ar via a EVD EVO external driver fig 2 9 using fieldbus serial EVD pRack pR100T connections via filedbus g 24 Vac 35 VA TRADRFE240 dedicated shield DPI Dh 32774 COMA NOA OPEN CUD Bf Ultracap Technology close E EO Tx Rx GND J26FBus2
175. ne controller to another When the key is connected to the personal computer the symbols have the following meanings Flashing Alternating Waiting for connection to PC When connected to PC indicates data transfer in progress The programming key is compatible starting from BIOS version 3 43 and BOOT version 3 01 For more detailed information on programming the key see the pRack Manager program manual Using the Smart Key with the pRack Switch off the pRack remove any peripherals connected in the pLAN and plug the key into the telephone connector on the controller When switching on again all the symbols light up momentarily and the buzzer emits a beep A few seconds later the key becomes operational During this period the symbols will flash The controller then enters programming mode and the start button lights up steadily Press the button to start data transfer A Important If the key is type B or C pressing the start button will immediately delete the software already loaded on the pRack A Important Do not remove the key while data is being transferred to the key itself as the file being transferred will be lost and the corresponding space will not be restored To restore the original capacity all the files will need to be deleted If the key is type C simply perform a new application read operation pRack pR100T 0300022EN rel 1 0 21 01 2015 68 Meanings of Buttons Symbols Flashi
176. neric probe malfunction E PLB3 Automatic 605 R2 Related functions disabled ALAT19 Generic probe malfunction A PLB4 Automatic 605 R2 Related functions disabled ALA20 Generic probe malfunction B PLB4 Automatic 605 R2 Related functions disabled ALA21 Generic probe malfunction C PLB4 Automatic 605 R2 Related functions disabled ALA22 Generic probe malfunction D PLB4 Automatic 605 R2 Related functions disabled ALA23 Generic probe malfunction E PLB4 Automatic 605 R2 Related functions disabled ALA24 Suction pressure probe malfunction Automatic 605 R1 Related functions disabled ALA25 Suction temperature probe malfunction Automatic 60 s R2 Related functions disabled ALA26 _ Room temperature probe malfunction Automatic 605 R2 Related functions disabled ALA27 Condensing pressure probe malfunction line 2 Automatic 605 R1 Related functions disabled ALA28 Discharge temperature probe malfunction line 2 Automatic 60 s R2 Related functions disabled ALA29 Suction pressure probe malfunction line 2 Automatic 605 R1 Related functions disabled ALA30 Suction temperature probe malfunction line 2 Automatic 60 s R2 Related functions disabled ALA31 Gall cooler backup pressure probe malfunction Automatic 60 s R2 Related functions disabled ALA32 Condensing pressure backup probe malfunction line 2 Automatic 605 R2 Related functions disabled ALA33 Suction pressure backup probe malfunction Automatic 605 R2 Related functions disabled ALA34
177. nfig Shutdown compressor 10 line 2 ALCab__ Alarm 1 compressor 11 line 2 Man Autom Config Config Shutdown compressor 11 line 2 ALCac __ Alarm 1 compressor 12 line 2 Man Autom Config Config Shutdown compressor 12 line 2 ALCad High oil sump temperature Digital Scroll Man Autom Config R2 Shutdown compressor ALCae High discharge temperature Digital Scroll Man Autom Config R2 Shutdown compressor ALCaf jHigh oil dilution Digital Scroll Man Autom Config R2 Shutdown compressor ALCaq High oil sump temperature Digital Scroll line 2 Man Autom Config R2 Shutdown compressor ALCah High discharge temperature Digital Scroll line 2 Man Autom Config R2 Shutdown compressor ALCai High oil dilution Digital Scroll line 2 Man Autom Config R2 Shutdown compressor ALCal jHigh discharge temperature compressors 1 6 Automatic 605 R2 Related functions disabled ALCam jHigh discharge temperature compressors 1 6 line 2 Automatic 605 R2 Related functions disabled 55 pRack pR100T 0300022EN rel 1 0 21 01 2015 CAREL Code __ Description Reset Delay Alarm relay Action AlCan Compressor envelope Manual Config RI Shutdown compressors ALCao High compressor oil temperature line 1 Automatic Config
178. ng The key is connecting to the pRack During this phase which may last a few seconds the start button is disabled start Flashing The key has detected the pRack and is checking the access rights On steady Pressing the start button will start writing the start software to the pRack On steady Pressing the start button will start reading the start software from the pRack On steady Pressing the start button will start reading the logs start from the pRack On steady In case of C pressing the button for 1 second mode j switches from read to write Tab 11 a If the key is type C pressing the mode button for 1 second switches from read to write The symbols 4 write to pRack gt read from pRack read logs reflect the selected status If the key is not type C the mode button is disabled and off The start button starts the read or write operation indicated by the flashing of the corresponding symbol or at a frequency proportional to the progress of the operation When the operation is completed the buzzer will sound intermittently for 2 seconds Pressing the start button again will make the buzzer sound without repeating the operation To repeat the operation the key must first be unplugged In case of error the symbol will light up together with the other LEDs The following table can help you find the cause of the problem Errors before pressing the START button
179. nical 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 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 In addition to observing any further warnings described in this manual the following warnings must be heeded for all CAREL products Prevent the electronic circuits from getting wet Rain humidity and all types of liquids or condensate contain corrosive minerals that may damage the 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 temperatures may reduce the life of electronic devices damage them and deform or melt the plastic parts In any case the product should be used or stored in environments that comply with the temperature and humidity limits specified in the manual
180. nication protocol line LOCAL MODBUS SLAVE pRACK MANAGER CAREL SLAVE GSM Baudrate Supervisor communication speed line 1 19200 1200 19200 Fd01 Insert password Password 0000 0 9999 Current password level User Service Manufacturer Fd02 Logout Logout NO NO YES User User password 0000 0 to 9999 Fd03 Service Service password 1234 ne 0 9999 Manufacturer Manufacturer password 1234 0 9999 pRack pR100T 0300022EN rel 1 0 21 01 2015 50 CAREL Mask index Display description Description Default UoM _ Values The following parameters refer to line 2 for details see the corresponding parameters for line 1 above Address Address of the supervisory system line 2 196 0 207 CAREL SLAVE LOCAI a pRACK CAREL SLAVE REMOTE Fcb01 Protocol Supervisor communication protocol line 2 MANAGER MODBUS SLAVE pRACK MANAGER CAREL SLAVE GSM Baudrate Supervisor communication speed line 2 19200 1200 19200 Tab 8 9 Mask index Display description Description Default UoM _ Values B NO Gba01 Enable prevent Enable high pressure condensing prevent line 1 NO VES Setpoint High pressure condensing prevent threshold line 1 0 0 barg ak Gba02 Differential High pressure condensing prevent differential line 1
181. o 100 dead zone regulation 90 0 9999 suction line 1 Power reduction to 0 Minimum time to decrease capacity request to 0 dead zone regulation 30 i 0 9999 Cab13 min time suction line 1 UC Power reduction to 096 Maximum time to decrease capacity request to 096 dead zone regulation 180 0 9999 max time suction line 1 eene FOPSISUInO Compressor 1 operating hours line 1 h 0 999999 Cac01 Check in Compressor 1 remaining operating hours line 1 h 0 999999 Compressor Compressor 2 operating hours line 1 h 0 999999 Check in Compressor 2 remaining operating hours line 1 h 0 999999 end FOE Compressor 11 operating hours line 1 h 0 999999 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 h 0 999999 39 pRack pR100T 0300022EN rel 1 0 21 01 2015 CAREL Mask index Display description Description Default UoM Values Cac13 COMISO TASSO Compressor maintenance threshold hours line 1 88000 h 0 999999 operating hours Cac14 Compressor hours reset Reset compressor operating hours line 1 N T NZ Y Cad01 Enable MA REA Enable setpoint comp
182. o interference therefore avoid installing the unit near transmitting antennae exposure of the pCO compact to direct sunlight or the elements in general large and rapid fluctuations in ambient temperature e environments where explosives or mixes of flammable gases are present exposure to dust formation of corrosive patina with possible oxidation and reduction of insulation A For connection the following warnings must be observed provide a power supply switch in accordance with the local disposal legislation using a different power supply from the one specified may seriously damage the system use cable ends suitable for the terminals Loosen each screw and insert the cable ends then tighten the screws When completed lightly tug the cables to check that they are tight e separate as much as possible the probe and digital input signal cables from the cables carrying inductive loads and power cables to avoid possible electromagnetic disturbance Never run power cables including the electrical cables and probe signal cables in the same conduits Do not install the probe cables in the immediate vicinity of power devices contactors circuit breakers or similar reduce the path of the probe cables as much as possible and avoid spiral paths that enclose power devices avoid touching or nearly touching the electronic components fitted on the boards so as to avoid electrostatic discharges extremely dangerous f
183. of compressor alarms associated with the oil level line 1 0 0 4 7 Open time Oil level valve opening time line 1 0 S 0 999 Eaab11 Closing time Oil level valve closing time line 1 0 S 0 999 Puls start delay Delay for oil level valve pulsation at startup line 1 0 S 0 999 Max puls time Maximum pulsing time of the oil level valve line 1 0 S 0 999 Type of oil level separator control with minimum level only with mini Msn Oil level controlled by LZ a 7 y MAMA I MAIN LEV MIN amp MAXL LEV Eaab12 a aximum level and with compressor statu COMP STATUS Min off valve Minimum separator valve closing time line 1 0 S 0 999 Min lev delay Minimum oil level detection delay line 1 0 S 0 999 Ton Activ Valve opening time during oil level reset line 1 10 S 0 999 Eaab13 Toff Activ Valve closing time during oil level reset line 1 0 S 0 999 Ton Deact Valve opening time with correct oil level line 1 0 S 0 999 Toff Deact Valve closing time with correct oil level line 1 10 min 0 999 Threshold Oil separator differential pressure threshold line 1 1 0 barg VN db Eaab14 Differential Oil separator differential pressure line 1 0 5 barg m m uu Delay Oil separator differential pressure delay line 1 0 S 0 99 Threshold Oil cooler high temperature alarm threshold line 1 100 0 C F Eaab16 Differential Oil cooler high temperature alarm differential line 1 10 0 C C ss Delay Gil cooler high temperature
184. on 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 e L1 one line can be used for system configurations with just one suction and or condenser line e 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 e cconfiguration with board with pLAN address 2 gt separate models e configuration without board with pLAN address 2 gt one model only The complete list of supervisor variables with the corresponding addresses and descriptions can be supplied upon request 67 10 2 Commissioning software pRack Manager is configuration and real time monitoring software used to check the operation of pRack pR100T for commissioning debug and maintenance operations The software is available on the internet at http ksa CAREL com in the section down
185. on of the I Os DI Alarm 1 compressor 1 DI position line 1 03 01 18 B1 B10 Caa01 Status display only Status Alarm 1 compressor 1 DI line 1 Closed Open Logic Logic alarm 1 compressor 1 DI line 1 NC NC NO Function display only Alarm 1 compressor 1 function status line 1 Not active Active Line relay DO Compressor 1 line DO position and status On Off display line 1 nm 01 29 Part winding DO Star relay Compressor 1 part winding star DO position and status On Off display oles x 01 29 Caa08 DO line 1 Delta relay DO Compressor 1 DO position and status On Off display line 1 01 29 Logic Logic for compressor 1 power supply DO line 1 NC NC NO DO Compressor 1 unloader 1 DO position line 1 01 29 Caa09 Status display only Status for compressor 1 unloader 1 DO line 1 Closed Open Logic Logic for compressor 1 unloader 1 DO line 1 NC NC NO Function display only Compressor 1 unloader 1 function status line 1 Not active Active wu AO Compressor modulating device AO position line 1 0 01 06 Status display only Modulating device output value line 1 0 0 0 100 0 Suction pressure probe position Line 1 B1 B1 B10 0 1 V Suction pressure probe type Line 1 4 20 mA 0 10 V Caaal 4 20 mA 0 5 V display only Suction pressure value line 1 uu Max limit Suc
186. or reverse operation In both cases a setpoint and differential can be set and the operation of the related output is illustrated in the figure for both cases Direct stage Regulation variable Setpoint Reverse stage Regulation variable Setpoint Fig 7 a0 If an enabling value is set the output connected to the stage is active if the enabling is also active For each stage a high alarm and low alarm threshold can be enabled and they are absolute For each alarm the activation delay and priority can be set See Chapter 8 for details on the alarms An example of using the generic stage functions may be the activation of the fans on the room units based on the temperature Modulation pRack pR100T can manage up to 2 modulation functions with either direct or reverse operation In both cases a setpoint and differential can be set and the operation of the related output is illustrated in the figure for the direct mode where the cut off function is also enabled Direct modulation Regulation variable Fig 7 ap If an enabling value is set the output connected to the stage is active if the enabling is also active For each modulation a high alarm and low alarm threshold can be enabled and they are absolute For each alarm the activation delay and priority can be set See Chapter 8 for details on the alarms For modulation a minimum and maximum value can also be set for the output and the cut off func
187. or 2 line 1 Bac11 Caa24 Valve 2 compressor 1 line 1 Bac12 Caa25 Valve 3 compressor 1 line 1 Bac13 Caa26 Equalization 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 Bac17 Caa37 Valve 2 compressor 3 line 1 Bac16 Caa36 Valve 1 compressor 3 line 1 Bac18 Caa38 Valve 3 compressor 3 line 1 Bac20 Caa39 Equalization 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 1 Bac23 Caa49 Valve 2 compressor 4 line 1 Bac24 Caa50 Valve 3 compressor 4 line 1 Bac26 Caa51 Equalization valve compressor 4 line 1 Bac28 Caa60 Line 1 Suction Line relay compressor 5 line 1 Partwinding Star relay compressor 5 line 1 Delta relay compressor 5 line 1 Bac29 Caa61 Valve 1 compressor 5 line 1 Bac30 Caa62 Valve 2 compressor 5 line 1 Bac31 Caa63 Valve 3 compressor 5 line 1 Bac33 Caa64 Equalization 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 Bac35 Caa73 Valve 1 compressor 6 line 1 Bac36 Caa74 Valve 2 compressor 6 line 1
188. ow alarm enabling for stage 1 generic function DISAB gt DISAB ENABLE Low alarm Low alarm threshold for stage 1 generic function 0 0 C T T ub Delay Low alarm delay for stage 1 generic function 0 S 0 9999 Alarm type Low alarm type for stage 1 generic function NORMAL NORMAL SERIOUS pRack pR100T 0300022EN rel 1 0 21 01 2015 46 CAREL Mask index Display description Description Default UoM Values Efb05 Gen modulat 1 Enable generic modulating function 1 management DISAB DISAB ENABLE Gen modulat 2 Enable generic modulating function 2 management DISAB DISAB ENABLE Efb06 Requlation variable Requlation variable for generic modulating function 1 e Mode Direct or reverse requlation DIRECT DIRECT REVERSE Enable Enabling variable for generic modulating function 1 Da Efb07 Description Enable description change SKIP SKIP CHANGE Sea aaa Description F T EfbO8 Setpoint Setpoint for generic modulating function 1 0 0 C Differential Differential for generic modulating function 1 0 0 C xad High alarm High alarm enabling for generic modulating function 1 DISAB gt DISAB ENABLE Efb09 High alarm High alarm threshold for generic modulating function 1 0 0 C TN m ud De
189. pressor 5 line 2 Bacaf Cba64 Equalization valve compressor 5 line 2 Line relay compressor 6 line 2 Bacag Cba72 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 Equalization valve compressor 6 line 2 Line relay compressor 7 line 2 Bacan Cba80 Partwinding Star relay compressor 7 line 2 Delta relay compressor 7 line 2 Bacao Cba81 Valve 1 compressor 7 line 2 2 Bacap Cba82 Valve 2 compressor 7 line 2 A Bacar Cba83 Equalization valve compressor 7 line 2 Line relay compressor 8 line 2 Bacas Cba86 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 Bacaw Cba89 Equalization valve compressor 8 line 2 Line relay compressor 9 line 2 Bacax Cba92 Partwinding Star relay compressor 9 line 2 Delta relay compressor 9 line 2 Bacay Cba93 Valve 1 compressor 9 line 2 Bacbb Cba94 Equalization valve compressor 9 line 2 Line relay compressor 10 line 2 Bacbc Cba96 Partwinding Star relay compressor 10 line 2 Delta relay compressor 12 line 2 Bacbd Cba97 Valve 1 compressor 10 line 2 Bacbg Cba98 Equalization valve compressor 10 line 2 Line relay compressor 11 line 2 Bacbh Cbaaa Partwinding Star relay compressor 11 line 2 Delta relay compressor 11 line 2 Bacbi C
190. r 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 pR100T and provide the correct description of the alarm 9 3 Pressure and prevent alarms pRack pR100T can manage pressure alarms from a pressure switch or probe according to the following diagram Alarms from pressure switch low suction pressure High condensing pressure Alarms from probe 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 _ 1 d Differential Pressure Probe alarm Pressostat alarm Fig 9 c 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 prevent function is described below 9 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 a
191. r temperature regulation with compensations applied line _ 1 Differen Requlation differential for temperature regulation line 1 T ES uu Act Req Power delivered Power requested per suction line line 1 0 0 100 100 Stop Increase Functioning Reg Status Regulation status according to the type of regulation set line 1 Decrease Timings Aa03 display only Stand by Alarms Proportional Band Reg Type Compressor regulation type line 1 i Dead Zone Setpoint Actual suction setpoint with compensations applied line 1 e E aui C01 C02 C12 Time remaining for next compressor startup line 1 sus S 0 32000 Power delivered from compressor 1 of line 1 a to the right of the value M l DI d Aa04 display only C01 means that some form of compressor power forcing is active e 9 safety 0 100 times alarms startup procedure a 2 Power delivered from compressor 12 line 1 0 100 Temperature Suction temperature line 1 gt A O ony Superheat Superheating line 1 Cy Disch 1 Discharge temperature compressor 1 line 1 Aa11 display only ivi j Disch 6 Discharge temperature compressor 6 line 1 Oil Temp 1 Oil temperature compressor 1 line 1 Aa12 display only ni Oil Temp 6 Oil temperature compressor 6 line 1 p InJiq 1 DO Digital output number associated and liquid injection economizer status 0 29 anior compressor 1 line 1 Aa13 displa
192. re alarm delay line 1 60 0 999 Gas cooler high pressure d Dae02 Dae06 EM Gas cooler high pressure alarm threshold line 1 24 0 barg nd a Differen Gas cooler high pressure alarm differential line 1 1 0 barg m dd Dae03 e OW pressure Type of gas cooler low pressure alarm threshold line 1 ABSOLUTE ABSOLUTE RELATIVE Delay Gas cooler low pressure alarm delay line 1 30 0 999 Gas cooler low pressure l Dae04 Dae07 rM Gas cooler low pressure alarm threshold line 1 7 0 barg pal Differen Gas cooler low pressure alarm differential line 1 1 0 barg E ud Common fan overload Enable common fan overload line 1 YES NO YES Delay Common fan alarm delay 0 S 0 500 Dae05 AUTOMATIC Reset Common fan alarm reset type AUTOM MANUAL Daf01 Number of fans Number of fans line 1 3 0 16 Daf02 Fanl Fan2 Enable fan 1 12 line 1 EN DIS EN Daf03 Fan13 Fan14 Enable fan 13 16 line 1 EN DIS EN R22 R134a R404A RA07C R410A R507A R290 R600 R600a R717 R744 R728 R1270 Daf04 Refrigerant type Type of refrigerant condensing line 1 R744 R417A R422D R413A R422A R423A R407A R427A R245Fa R407F R32 FIFO Daf05 Device rotation type Type of rotation devices condensing line 1 FIFO LIFO TEMPO CUSTOM 43 pRack pR100T 0300022EN rel 1 0 21 01 2015 CAREL
193. reffer to Chapter 4 first restore the Carel default values CAREL 8 TABLE MASKS 8 1 Parameter table D Mask index indicates the unique address of each screen and therefore the path for reaching the parameters in that screen For example to reach the parameters related to the suction pressure probe with mask index Bab01 proceed as follows 3 J Main Men Es LPP A THAE s gt ite mE ot LI zi s 44 HS LESS Fia Below is the table of 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 and the possible options are visible on the user terminal A line of means that there are a series of parameters similar to the previous ones Note not all of the screens and parameters in the table are always visible settable the visible settable screens and parameters depend upon the configuration and access level Mask index Display description Description Default UoM Values Hour and minutes Date Suction Suction pressure or temperature Pu Gas cool Gas cooler pressure or temperature BN ue Superheat Superheating a Suc Temp Suction temperature M ER uw Disch Temp Discharge temperature
194. reshold calculation qus Static the range of variation of the control request is divided i equally between the number of stages available By time Dynamic the thresholds are calculated depending on the Custom capacity effectively available Tab 7 d Example 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 7 i 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 Regulation request 10 30 60906 10096 Fig 7 j If an alarm is active on compressor 3 the recalculated activation thresholds are 10 30 70 96 Regulation request 1096 30 70 Fig 7 k Activation of the compressors and load stages may be e Grouped CpppCppp first all the load stages are activated on one compressor before starting the next one Balanced CCoppppp first all the compressors are started at minimum capacity and then the corresponding load stages are activated one for each compressor in sequence 7 4 3 Rotation with modulation devices pRack pR100T 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 proced
195. rom the operator to the components separate the power supply to the digital outputs from the power supply to the pCO compact when tightening the cables to the terminals do not exert excessive pressure on the screwdriver to avoid damaging the pCO compact e disconnect the controller from the power supply before performing any maintenance or assembly operations e the controller has to be integrated inside an instrument panel and it has not to be reachable in order to avoid strokes and impacts e ifthe device is used in a manner not specified by the manufacturer the rated protection of the device may be compromised e incase of failure of the control and of optional boards please only refer to CAREL service e install optional boards and connectors only supplied by CAREL pRack pR100T 0300022EN rel 1 0 21 01 2015 8 CAREL 2 TECHNICAL SPECIFICATIONS 2 1 Mechanical specifications A Warning separate as much as possible the probe and digital input Dimensions availble m DiNmodule famat 1080150 signal cables from the cables carrying inductive loads and power cables Assembly DIN rail to avoid possible electromagnetic disturbance 2 2 Plasticcase 2 5 Digital inputs e Fitted on DIN rail as per DIN 43880 and IEC EN 50022 l o a a SERES isolated voltage free contact Flame retardance V2 TEA and 960 C IEC 695 Power supply prima Ball pressure test 125 C Multifunction analogue
196. s 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 pRack pR100T 0300022EN rel 1 0 21 01 2015 9 3 2 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 Pressure alarms from probe 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
197. s 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 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 screens 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 Fd at any time The password can also be changed in the corresponding menu branch pRack pR100T 0300022EN rel 1 0 21 01 2015 6 4 Menu description CAREL this menu level is only visible for system configurations with two lines O 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 changes pRack pR100T 0300022EN rel
198. sed to enter the main menu tree Esc returns to the higher level screen UP scrolls a list upwards or increases the value highlighted by the cursor rolls a li nwar r r h 4 Down SC O sa ist downwards or decreases the value highlighted by the cursor ENTER enters the selected submenu or confirms the set value Tab 6 a The LEDs associated with the buttons have the following meanings Meaning of LEDs LED Button Meaning A Flashing active alarms present and not acknowledged Red gt Steady alarms present and acknowledged Yellow Menu pRack pR100T on Green Esc _ pRack pR100T powered Tab 6 b 6 2 Description of the display There are three fundamental types of screens shown to the user Main screen Menu screen e Screen for displaying setting the parameters Main screen The main screen is the screen that the software on board pRack pR100T 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 Fig 6 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 A a by pressing button VI DWIN Note The information shown on the main screen varies according to the system configuration one line two lines two lines with sh
199. so depends on the selected control mode for example in the first case shown in the figure the minimum capacity delivered is Minimum ON time Cycle time 2 15 13 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 pR100T can manage the specific starting procedure for Digital Scroll compressors as represented as in the following figure 1451 180s 60s gt gt Request d 50s 100s L ii v anni T TILILT zl Compressor Startup time Fig 7 t 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 96 capacity for 3 minutes 3 forced operation at 100 96 for 1 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 time has elapsed the procedur
200. speed up pRack pR100T 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 7 5 4 Silencer pRack pR100T 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 parameters 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 consequently 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 7 5 5 Split condenser pRack pR100T can manage the possibility to exclude some fans from operation for example to reduce gas cooler operation in winter using the split condenser function The function can be enabled and the related parameters set in main menu
201. ssor 7 line 2 Baaah Cba79 Alarm 2 compressor 7 line 2 Baaai Cba84 Alarm 1 compressor 8 line 2 Baaaj Cba85 Alarm 2 compressor 8 line 2 Baaak Cba90 Alarm 1 compressor 9 line 2 Baaal Cba91 Alarm 2 compressor 9 line 2 Baaam Cba95 Alarm 1 compressor 10 line 2 Baaan Cba99 Alarm 1 compressor 11 line 2 Baaao Cbaad Alarm 1 compressor 12 line 2 Baaas Cbaak Liquid level alarm line 2 Baadd Fan inverter warning line 2 Baaag Common high pressure switch line 2 Baabn Dba01 Fan circuit breaker 1 line 2 Baabo Dba02 Fan circuit breaker 2 line 2 Baabp Dba03 Fan circuit breaker 3 line 2 Baabq Dba04 Fan circuit breaker 4 line 2 Baabr Dba05 Fan circuit breaker 5 line 2 gt Baabs Dba06 Fan circuit breaker 6 line 2 2 Baabt Dba07 Fan circuit breaker 7 line 2 Baabu Dba08 Fan circuit breaker 8 line 2 9 Baabv Dba09 Fan circuit breaker 9 line 2 Baabw Dba10 Fan circuit breaker 10 line 2 Baabx Dba11 Fan circuit breaker 11 line 2 Baaby Dba12 Fan circuit breaker 12 line 2 Baabz Dba13 Fan circuit breaker 13 line 2 Baaca Dba14 Fan circuit breaker 14 line 2 Baacb Dba15 Fan circuit breaker 15 line 2 Baacc Dba16 Baacd Dba17 Fan circuit breaker 16 line 2 Common fan circuit breaker line 2 pRack pR100T 0300022EN rel 1 0 21 01 2015 58 CAREL Digital inputs Mask
202. 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 7 8 3 Floating condensing pressure set point For the condenser line the floating set point is based on the outside temperature 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 tem perature Fig 7 ae 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 7 9 Accessory functions pRack pR100T 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 7 10 Oil management pRack pR100T allows some additional functionalities for oil management per individual compressor or per line Individual compressor oil cooling oil injection Line common oil receiver The functionalities can be enabled and the relat
203. sure and 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 9 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 Fig 9 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 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 Generic Overload High pressure Low pressure Oil Tab 9 a An example of a screen for selecting the description of the alarm is shown in the figure CAREL 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
204. ted parameters set in main menu branch Caf The economizer is only efficient for high compressor activation capacities typically over 75 96 therefore the economizer function control valve is only activated when exceeding a set threshold As the economizer tends to increase the condensing pressure this needs to be controlled to ensure the high condensing pressure alarm is not generated In addition the injection of vapour decreases the discharge temperature and so this value also needs to be monitored Consequently the three conditions for activation of the economizer function are Capacity above a set threshold e Condensing pressure below a set threshold with reset differential Discharge temperature above a set threshold with reset differential Note the function can be activated on a maximum of 6 compressors 7 4 8 Liquid injection As an alternative to the economizer pRack pR100T 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 the discharge temperature Operation is Similar to the economizer function with the difference that the expanded liquid is not sent to a heat exchanger but rather directly into the compressor The function is only activat
205. the configuration debugging and maintenance operations on CAREL pRack devices pRack Manager can be installed by itself or as part of the 1Tool programming environment Installing pRack Manager On http ksa carelcom under the section software amp support Configuration amp updating software parametric controller software select pRack_manager After having selected the most recent version of the tool click download and accept the general terms and conditions for the free software user license the program can then be installed on the computer Connecting the PC to the pRack Connect a cable with USB RS485 converter to the USB port on the computer and connect the converter to a telephone cable plugged into the pLAN port of the pRack Additional connection methods are described in par 6 5 CVSTDUTLFO 2 Ge J7 w n Lo z z 312 POWER SUPPLY Fig 11 b Upon launching pRack manager will display a screen showing the connection settings in the upper right hand corner Choose 1 connessione locale local connection 2 baud rate Auto 3 ricerca dispositivo find device Auto PLAN As for the port number follow the Wizard s instructions for the port to be identified automatically e g COM4 i Connection settings O x E ConnectionType
206. the optimal pressure at the limit of the transcritical and subcritical zones The purpose of this zone is to avoid discontinuity in passing between the two zones Upper proportional zone defined by P lt P lt P the valve works with only proportional regulation between the opening value reached at pressure P and the maximum opening value at pressure Poo If pRack pR100T 0300022EN rel 1 0 21 01 2015 24 CAREL the pressure decreases the opening value of the HPV valve remains constant until it enters the transcritical zone in which the regulation restarts as previously described e Lower proportional zone defined by T 94 lt Is Tn the valve works with only proportional regulation between the opening value reached at temperature T_ and the maximum opening value at temperature Toon If the pressure increases the opening value of the HPV valve remains constant until it enters the subcritical zone in which the regulation restarts as previously described It is possible to disable operation according to this mode by parameter Calculation of the customized setpoint custom The customized calculation differs from the optimized control due to the fact that the curve in the subcritical phase is rectilinear and defined by the user therefore the definition of the bands and the calculation of the setpoint can be customized by the user Behaviour in the remaining bands is as described for the optimized algorithm HPV valv
207. tion can be enabled which operates as shown in the previous figure pRack pR100T 0300022EN rel 1 0 21 01 2015 30 CAREL Alarms pRack pR100T can manage up to 2 alarm functions for which a digital variable to be monitored activation delay priority and any description can be set A digital output can be associated to each general alarm function for the activation of external devices when the alarm is triggered One example of use of the generic alarm functions is the detection of gas leaks Scheduler pRack pR100T can manage a generic scheduler which activates a digital output in certain time bands Up to 4 daily time bands can be set for each day of the week Operation of the generic scheduler can also be linked to the common scheduler and the output activated based on e summer winter e upto 5 closing periods e upto 10 special days See Paragraph 6 7 2 in the pRack PR100 manual code 4030001 1EN for details on the time bands 7 13 4 ChillBooster pRack pR100T 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 e the outside temperature exceeds a set threshold e 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 decreas
208. tion line 1 26 0 barg ini Ab13 Setpoint Setpoint without compensation gas cooler line 1 12 0 C eil Ab14 Setpoint Setpoint without compensation suction line 2 12 0 barg 29155 Ab15 Setpoint Setpoint without compensation condens line 2 12 0 barg PR uu Off by default dall Off from DIN Jalen Off from Status Unit status display only onion AN Que Terlan keypad Ac01 a keypad Off due to yP Manual Funct SI work Prevent Off from BMS from HP On off from keypad line 1 OFF ne OFF ON i Unit status display only AF from See Ac01 above Ac02 L2 keypad On off from keypad line 1 DEF OFF ON gt On off from keypad line 2 OFF gt OFF ON 37 pRack pR100T 0300022EN rel 1 0 21 01 2015 CAREL Mask index Display description Description Default UoM Values Enable unit ANON Enable unit On Off from digital input line 1 NO NO YES Ac03 from digital input From supervisor Enable on off from supervisor line 1 NO gt NO YES Due to black out Enable on off due to black out line 1 NO NO YES Ac04 Delay unit startup after Delay unit startup after blackout line 1 0 S 0 999 blackout S p p v li r __ oy Enable unit del Enable unit On Off from digital input line 2 NO NO YES Ac06 from
209. tion pressure maximum value line 1 44 8 barg add Min limit Suction pressure minimum value line 1 0 0 barg me VN d Calibrat Suction pressure probe calibration Line 1 0 0 barg d 15 Regulation Compressor control by temperature or pressure line 1 PRESSURE PRESSURE TEMPERATURE Cab01 l l u PROPORTIONAL BAND Reg Type Compressor regulation type line 1 DEAD ZONE DEAD ZONE Cab02 Minimum Compressor setpoint lower limit line 1 0 0 barg uu Maximum Compressor setpoint upper limit line 1 40 0 barg T odi Cab03 Setpoint Compressor setpoint line 1 26 0 barg TM e PROPOR Cab04 Cab6 Reg Type Proportional regulation type line 1 TIONAL PROPORTIONAL PROP INT Integral time Integral time for proportional regulation line 1 300 S 0 999 Cab05 Cab7 Differential Differential for proportional regulation line 1 0 5 barg m udi NZ diff Dead zone regulation differential line 1 0 5 barg E ud Cab08 Cab10 Activ diff Dead zone regulation differential for device activation line 1 0 7 barg TT ud Deact diff Dead zone requlation differential for device deactivation line 1 0 7 barg gu Cab09 Cab11 En force off Enable capacity immediate decreasing to 0 line 1 NO NO YES Setp force off Threshold for capacity decreasing to 0 line 1 0 0 barg T l 5 l ira Minimum time to increase capacity request to 100 dead zone regulation 15 0 9999 Cab12 Ei Tu Danerne CORRO Maximum time to increase capacity request t
210. tored variable for generic alarm function 1 Efc06 Enable Enabling variable for generic alarm function 1 se Description Enable description change SKIP SKIP CHANGE Sessa Description ca pit Efc07 Alarm type Priority type for generic alarm function 1 NORMAL NORMAL SERIOUS Delay Delay for generic alarm function 1 0 S 0 9999 Enable generic scheduler Enable generic scheduler function DISAB DISAB ENABLE function Efd05 Gen scheduling connected j Generic scheduler with the same days and special periods NO NO YES to common scheduler Efd06 Enable Enabling variable for generic scheduler function MON SUN TBI Sa Enabling and definition of time band 1 start hour and minute end hour and j minute suction line 1 I EMEN Enabling and definition of time band 4 start hour and minute end hour and Efd07 minute suction line 1 ES SAVE CHANGES Change Time band change action LOAD PREVIOUS CLEAR ALL MONDAY SUNDAY MON FRI Copy to Copy settings to other days 0 MON SAT SAT amp SUN ALL Efe05 Gen A measure Generic analog input A unit of measure selection C C F barg psig 96 ppm Generic probe A position B1 Bl B10 Generic probe A type 4 20 mA ad T display only Generic probe A value EE Dos Efe06 Efe07 Max inic Generic mm A maximum limit 30 0 barg d Min limit Generic probe A minimum limit 0 0 barg M uud Calibration Generic probe
211. trol Miani pori Minimum time in order to reach minimum capacity continuous 120 0 999 capacity control Intermittent Intermittent on off time for capacity control valves 10 S 0 99 Pulsing period Pulsing period for valves continuous capacity control 3 S 1 10 Caf28 Min Puls Incr Minimum pulse time to increase capacity valve control 0 5 S 0 0 9 9 Max Puls Incr Maximum pulse time to increase capacity valve control 1 0 S 0 0 9 9 Min Puls Decr Minimum pulse time to decrease capacity valve control 0 5 S 0 0 99 Max Puls Decr Maximum pulse time to decrease capacity valve control 1 0 S 0 0 9 9 O ON Caf29 ari Configuration of the behaviour of the valves during startup incr min to u X OFF J 100 decr 100 to min standby decr 100 to 50 Intermittent P Pulsing Number of valves Number of valves used for capacity control screw compressor 2 3 1 4 Caf36 l 25 50 a 100 50 100 50 75 100 Stage configuration Stage configuration screw compressor 2 75 100 25 50 75 100 33 66 100 Different sizes Enable compressors of different sizes line 1 NO NO YES AH Different number of valves Enable compressor partialization line 1 NO NO YES YES NO YES S1 Enable size and size for compressor group 1 line 1 100 kW 0 0 5000 Caf91 LE Li S4 Enable size and size for compressor group 4 line 1 NO NO YES kW 0 0 500 0 41 pRack pR100T 0300022EN rel 1 0 21 01 2015 CAREL
212. ture line 1 a Aa21 display only Ackval ai Ds setpoint for temperature regulation with compensations applied line _ 4 1 Differen Regulation differential for temperature regulation line 1 TOR a Act Re Power delivered Power requested per condensing line line 1 0 0 100 100 Stop incidid Functioning Reg Status Regulation status according to the type of regulation set line 1 Desa Timings Aa22 display only Stand by Alarms l Proportional Band Reg Type Gas cooler regulation type line 1 pue Dead Zone Setpoint Actual setpoint gas cooler line 1 EN uii Power delivered from fan 1 of line 1 a to the right of the value means that F1 o 06 0 100 some form of power forcing is active Aa23 display only pn Power delivered from fan 8 of line 1 a to the right of the value means that F8 NA 0 100 some form of power forcing is active Power delivered from fan 9 of line 1 a to the right of the value means that F9 Le 0 100 some form of power forcing is active Aa24 display only T T Power delivered from fan 16 of line 1 a to the right of the value means that F16 DM 0 100 some form of power forcing is active l Discharge temperature Discharge temperature line 1 A External temperature External temperature line 1 E ud Pressure Suction pressure line 2
213. ure or in main menu branch C a f C b f 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 selected 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 pRack pR100T 0300022EN rel 1 0 21 01 2015 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 frequenc
214. ver pressure probe S3 driver connected in Fieldbus bar 290 2900 S4 probe Driver pressure probe S4 driver connected in Fieldbus C 870 2900 Aa66 Digital input staus 1 Driver digital input 1 driver connected in Fieldbus sa Open Close Digital input staus 2 Driver digital input 2 driver connected in Fieldbus xe Open Close Area Envelope zone for screw compressor 1 0 14 Aa70 display only Max allowed time Max allowed stay time for the zone Min 0 999 Countdown Countdown S 0 32000 Max allowed power Maximum allowed power for the zone 0 100 Off Start compressor Intermediate interval Aa71 display only Startup status Startup status for screw compressor 1 Last interval Compressor off Restart Alarm No restarts Number of restarts 0 99 E 4 T f it dennit No error rror code ype of error in the envelope definition E No alarm Max Time Passed Aa72 display only Alarm code Type of alarm that occurred onem wed Max no restarts performed NO error Default env err code Type of error in the choice of the predefined envelope Comp series not supp Gas type not allowed Reg var Value of the regulation variable for the generic function in stage 1 T EE Enable Status of the enabling variable for the generic function in stage 1 Active Not active Aaan display only Setpoint Regulation setpoint for the generic function in stage 1 m 2 F Differen Regulation differential for the gener
215. vered from compressor 12 line 2 0 100 A Temperature Suction temperature line 2 AT Aa35 display only Superheat Superheating line 2 Disch 1 Discharge temperature compressor 1 line 2 gt Aa41 display only ET Disch 6 Discharge temperature compressor 6 line 2 ud In lig 1 DO number associated and liquid injection status compressor 1 7 0 29 sia Aa43 display only T In iq 6 DO i number associated and liquid injection status compressor 6 7 0 29 ici Discharge temperature Discharge temperature Digital Scroll compressor line 2 PT o Cap Reduction Capacity reduction Digital Scroll compressor line 2 in progress je Aa45 display only Oil sump T Oil sump temperature Digital Scroll compressor line 2 mul t Li l Ok TM Oil status Oil dilution status Digital Scroll compressor line 2 Diluted Off Off for time i Start On for time TM NM RR Status Operational status Digital Scroll compressor line 2 On Manual Mad Alarm In pump down Aa46 display only Count Safety time count Digital Scroll compressor line 2 S 0 999 Compr Status Digital Scroll compressor line 2 on off Valve Status Digital Scroll valve line 2 on off Cap Req Capacity requested Digital Scroll compressor line 2 0 100 ActualCapac Actual capacit
216. wn compressor 1 line 2 ALC55 Alarm 4 compressor 1 line 2 Man Autom Config Config Shutdown compressor 1 line 2 ALC56 _ Alarm 5 compressor 1 line 2 Man Autom Config Config Shutdown compressor 1 line 2 ALC57 Alarm 6 compressor 1 line 2 Man Autom Config Config Shutdown compressor 1 line 2 ALCS8 Alarm 7 compressor 1 line 2 Man Autom Config Config Shutdown compressor 1 line 2 ALC59 Alarm 2 compressor 1 line 2 Man Autom Config Config Shutdown compressor 2 line 2 ALC60 Alarm 2 compressor 2 line 2 Man Autom Config Config Shutdown compressor 2 line 2 ALC61 Alarm 3 compressor 2 line 2 Man Autom Config Config Shutdown compressor 2 line 2 ALC62 Alarm 4 compressor 2 line 2 Man Autom Config Config Shutdown compressor 2 line 2 ALC63 Alarm 5 compressor 2 line 2 Man Autom Config Config Shutdown compressor 2 line 2 ALC64 Alarm 6 compressor 2 line 2 Man Autom Config Config Shutdown compressor 2 line 2 ALC65 Alarm 7 compressor 2 line 2 Man Autom Config Config Shutdown compressor 2 line 2 ALC66 Alarm 1 compressor 3 line 2 Man Autom Config Config Shutdown compressor 3 line 2 ALC67 Alarm 2 compressor 3 line 2 Man Autom Config Config Shutdown compressor 3 line 2 ALC68 Alarm 3 compressor 3 line 2 Man Autom Config Config Shutdown compressor 3 line 2 ALC69 Alarm 4 compressor 3 line 2 Man Autom Config Config Shutdown compressor 3 line 2 ALC7O
217. y 50 Hz so that the pRack pR100T 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 have 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 96 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 sEEHHHE Step compressors capacity Inverter capacity a Total capacity Fig 7 1 Example 2 range of modulating device capacity variation lower 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 It can be seen that the capacity delivered does not exactly follow the required capacity rather acts in steps so as to avoid swings Actual capacity kW 100 80 60 40
218. y Digital Scroll compressor line 2 0 100 Pressure Condensing pressure line 2 9t hase Gest on Sat Temp Condensing saturated temperature line 2 tua abd play ONY ActualSet Actual setpoint for pressure regulation with compensations applied line 2 a Differen Regulation differential for pressure regulation line 2 7 Pressure Condensing pressure line 2 E ud Sat Temp Condensing saturated temperature line 2 a Aa51 display only noce Actual setpoint for temperature regulation with compensations applied line _ 4 2 Differen Regulation differential for temperature regulation line 2 De D ad Act Req Power delivered Power requested per condensing line line 2 0 0 100 100 Stop ence Functioning Reg Status Regulation status according to the type of regulation set line 2 Dania Timings Aa52 display onl display only i n Alarms i Proportional Ban Reg Type Condenser regulation Type line 2 Dead Zone Setpoint Actual condensing setpoint with compensations applied line 2 i Power delivered from fan 1 of line 2 a I to the right of the value means that F1 ND l 0 100 some form of power forcing is active Aa53 display only Power delivered from fan 8 of line 2 a I to the right of the value means that F8 ae l 0 100 some form of power forcing is active Power delivered from fan 9 of line 2 a to the right of the value means that F9 E l
219. y only In lic 6 DO Digital output number associated and liquid injection economizer status 0 29 compressor 6 line 1 Discharge temperature Discharge temperature Digital Scroll compressor line 1 T ind Cap Reduction Capacity reduction Digital Scroll compressor line 1 in progress no yes Aa15 display only Oil sump T Oil sump temperature Digital Scroll compressor line 1 e idi Ok i Y m Oil status Oil dilution status Digital Scroll compressor line 1 Diluted Off Off for time Start On for time A n u o Status Operational status Digital Scroll compressor line 1 On Martial Mode Alarm In pump down Aa16 display only Count Safety time count Digital Scroll compressor line 1 S 0 999 Compr Status Digital Scroll compressor line 1 on off Valve Status Digital Scroll valve line 1 on off Cap Req Capacity requested Digital Scroll compressor line 1 0 100 ActualCapac Actual capacity Digital Scroll compressor line 1 0 100 Pressure Condensing pressure line 1 ad Aa20 display only Sat Temp Condensing saturated temperature line 1 Nd ActualSet Actual setpoint for pressure regulation with compensations applied line 1 Tu Differen Regulation differential for pressure regulation line 1 T du Pressure Condensing pressure line 1 a Sat Temp Condensing saturated tempera

pRack pR100T user manual for the management of CO

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