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1. No Code Parameter MSYF UOM Type Min Max Def 117 tdl Defrost time band 1 SYF E d__ Day Se Days i 0 11 0 h__ Hours 25 Hours id 0 23 0 n__ Minutes Sr Min i 0 59 0 118 td2 Defrost time band 2 SYF C 119 td3 Defrost time band 3 SYF E 120 td4 Defrost time band 4 SYF C 121 td5 Defrost time band 5 SYF E 122 td6 Defrost time band 6 SYF E 123 td7 Defrost time band 7 SYF C 124 td8 Defrost time band 8 SYF E 125 ton _ Light aux on time band SYF C d__ Day xk Days 0 11 0 h__ Hours ee Hours 0 23 0 n__ Minutes PEE Min 0 59 0 126 to Light aux off time band SYF C d__ Day Fe Days i 0 11 0 h__ Hours 5 Hours ii 0 23 0 n Minutes sr Min 0 59 0 127 tc RTC date time setting MSYF C y__ VYear Aree Years 0 0 99 00 M__ Month e Month 1 1 12 1 d__ Day of the month ex Days 1 1 31 1 u___ Day of the week aoe Days 6 1 7 6 h__ Hours 5 _ Hours 0 0 23 0 n__ Minutes iii Min 0 0 59 0 Tab 7t td1 td8 Defrost time band 1 to 8 These parameters can be used to set up to 8 defrost events linked to the system clock To display and set or modify one of the events access one of the parameters between td1 and td8 and then press SET This enters a submenu in which the up or down button can be used to display and set the day hour and minutes of the defrost event In the following example day
2. Code Parameter MSYF UOM Type Min AO Alarm and fan differential MSYF C F E 0 1 AI Type of threshold AL and AH MSYF flag C 0 AL Low temperature alarm threshold MSYF C F F 50 AH High temperature alarm threshold MSYF C F F 50 Ad Low and high temperature signal delay MSYF min F 0 A4 Digital input 1 configuration SYF C 0 M C 0 A5 Digital input 2 configuration MSYF C 0 A6 Stop compressor from external alarm SYF min C 0 A7 External alarm detection delay SYF min C 0 A8 Enable alarms Ed1 and Ed2 SYF flag C 0 A9 Digital input 3 configuration C 0 Ado Light management mode with door switch MSYF flag C 0 Ac High condenser temperature alarm SYF C F E 0 0 AE High condenser temperature alarm differential SYF GE C 0 1 20 5 0 Acd High condenser temperature alarm delay SYF min 0 250 0 AF Light sensor OFF time SYF sec C 0 250 0 ALF Antifreeze alarm threshold MSYF CF C 50 200 5 0 AdF __ Antifreeze alarm delay MSYF min E 0 15 I Tab 7 g Note par A9 refers to the instruments with 5 relays ir33DIN powercompact and MasterCella Important warning for the set times to become immediately operational the instrument needs to be turned off and on again If this operation Is not carried out timing resumes operation the next time it Is used AO Alarm and fan differential This is the differential used for disabling high and low temperature alarms AL and
3. Condenser probe Pre alarm Alarm Condenser fan outputs selected Not present Not generated Not generated OFF Two probes On probe with higher value On probe with higher value On probe with higher value Error one of the probes Generated Generated ON Tab 6 h Function active Function with condenser fan control Normal direct or reverse cycle control Normal operation Remote off from supervisor or keypad Condenser outputs deactivated condenser pre alarm and alarm reset Defrost Normal operation Continuous cycle Normal operation Temperature alarm monitoring Normal operation Evaporator fan control Normal operation Power on Normal operation Normally open or normally closed alarm output Normal operation Auxiliary output Normal operation Light output Normal operation Second evaporator output Normal operation Control output for pump down valve Normal operation Condenser fan control output Normal operation Second delayed compressor output Normal operation Auxiliary output with switch off Normal operation Light output with switch off Normal operation No function associated with the AUX output Normal operation Reverse output in control with dead band Normal operation Second compressor step output Normal operation Second compressor step output with rotation Normal operation Door switch with compressor fan off and light management Normal operation Door switch with compressor off and light management Normal operation Curtain switch with set point variati
4. dl dl dl dl dl dl di dli di di tempo si salta lo sbrinamento previsto si saltano due sbrinamenti previsti si saltano tre sbrinamenti previsti Fig 6 b Sbrinamento dE gt dn dE lt dn I dl dl dl dl dl di tempo lo sbrinamento viene si salta lo sbrinamento eseguito regolarmente Fig 6 C si salta lo sbrinamento 26 6 8 Pump down and low pressure 6 8 1 Enabling the function The pump down function is activated by setting parameter c7 pump down duration to any value other than zero The pump down valve must be connected to the auxiliary output setting the relevant parameter H1 In addition one of the digital inputs A4 A5 must be set as a low pressure input 6 8 2 Pump down function When the set point is reached if the minimum compressor ON time c3 has elapsed the controller closes the pump down valve stopping the refrigerant gas on the compressor suction side Parameter c10 can be used to select pump down by pressure In this case once the pump down valve closes the compressor continues to operate until reaching the low pressure value or the time c7 When this time elapses the compressor is switched OFF irrespective of the status of the low pressure input and the Pd alarm pump down ended by timeout is disabled In this case the compressor autostart function in pump down is disabl Note if the shut down request occurs when the compressor is off and the
5. To enable the controller for this operating mode set parameter d12 3 In this mode the controller performs the defrosts considering both the duration of the previous defrost and the possibility of skipping the defrost as well as the interval set using parameter dl Parameters used dl interval between defrosts e 12 enable the function e dn nominal duration of the defrost in proportion to the set defrost timeout value expressed as a e dP1 and dP2 maximum defrost duration for evaporator 1 and 2 dH control proportional factor The algorithm uses the following formulae to calculate AdI MEN qq 42 N 100 dP 50 the nominal defrost times dn1 and dn2 in the case of the second evaporator obtained as percentages dn of dP1 and dP2 The parameter dH is a proportional factor that amplifies or attenuates the variation of dln Conse quently in this operating mode if a defrost lasts less than the time dn established the algorithm will proportionally add according to the value assigned to parameter dH the time remaining from the previous defrost to the following defrost interval dl1 In addition to this the algorithm will skip using the skip defrost principle the next defrost defrosts depending on the value reached by the skip defrost counter from 1 to 3 1133 030220441 rel 2 0 01 05 2006 25 Sbrinamento dE lt dn m dE lt dn
6. unita 3 richiesta di sbrinamento Fig 7 1 impulse from the timer to start the defrost the minimum duration must be 0 5 s dP 1 maximum defrost duration on unit 1 dP 2 defrost delay from external contact for unit 2 higher than dP 1 to prevent overlapping defrosts Same for d5 3 and dP 3 Door switch 46 To stop the reading from flashing close the door When the door is closed the controller returns to normal operation switching off the light and enabling the temperature alarm after the delay time d8 The compressor is re started observing any protection times selected see the C parameters Case 2 door opened with light ON SAssuming the user enters the cold room turning on the light before entering closing the door behind him and then exits the room closing the door a second time When the door is opened the compressor the evaporator fans are switched off to stop the fans only set parameter A4 9 e the light stays on only in the models fitted with an auxiliary relay programmed as the light output the reading displayed and the icon flash e the temperature alarms are disabled When the door is closed the first time the controller maintains the previous situation When the door is closed the second time the controller returns to normal operation switching off the light and enabling the temperature alarm after the delay time d8 The compressor Is re started observing any protection tim
7. In 1 following each event able to activate the defrost e on the slaves In 2 to 6 following a defrost signal from the supervisor In the case of multiplexed defrosts the end defrost conditions described in the previous point are still valid however before going to dripping the master and slave wait for the signal from the network synchronizer In any case the defrost will end by timeout 1133 030220441 rel 2 0 01 05 2006 6 6 7 Dripping The dripping time is set by parameter dd when the compressor is OFF and the fans are OFF At the end of dripping time the post dripping phase starts with the fans OFF Fd the compressor restarts normal operation e the fans remain off If the post dripping time with fans OFF is set to zero normal control is resumed directly Post dripping fans OFF The post dripping time with fans OFF is set by parameter Fd At the end of the post dripping time with the fans OFF normal control resumes O Notes on the defrost function e If defrost with RTC is selected the parameter dl has no effect In any case the dl timer is updated and the parameter becomes valid on all days only in the event of RTC alarms The parameter dl should therefore be set for safety reasons e The timer used to determine the defrost interval dl is updated cyclically when reaching the end of the interval thus enabling cyclical defrosts The timer is also updated when the unit is OFF If the timer dl expires whe
8. SYF hours C 0 250 0 d11 Running time temperature threshold SYF CPF C 20 20 1 0 d12 Advanced defrost SYF C 0 3 0 dn Nominal defrost duration SYF C 100 65 dH Proportional factor variation in dl SYF C 0 100 50 Tab Ze Important warning afor the set times to become immediately operational the instrument needs to be turned off and on again If this operation is not carried out timing resumes operation the next time it is used do Type of defrost For the instruments fitted with defrost relays e d0 0 electric heater defrost by temperature d0 1 hot gas defrost by temperature e d0 2 electric heater defrost by time Ed1 and Ed2 not displayed e d0 3 hot gas defrost by time Ed1 and Ed2 not displayed Defrosts can be performed for all models by temperature using the defrost probe fitted on the evaporator In any case the defrost will be stopped after a maximum set safety time dP1 and dP2 The warnings Ed1 and Ed2 end defrost due to maximum duration parameter A8 can be disabled by time without the defrost probe e by time with temperature control based on the evaporator temperature the function is similar to the mode where d0 0 Once the temperatures dtl and dt2 end defrost have been reached the defrost does not end completely and the controller reactivates the defrost output if the temperature falls below dt1 and dt2 This occurs for the entire duration of the def
9. in minutes defined by the value of Fd This is useful to allow the evaporator to return to its operating temperature after defro sting thus avoiding forcing hot air into the refrigerated environment In the event of management by fan controller the time Fd does not need to be set as the controller starts the fans again when the evaporator reaches its operating temperature If the fan controller is active FO 0 when assigning to Fd a value other than zero the fans remain OFF for a time equal to the value of Fd irrespective of the evaporator temperature Default Fd 1 gt 1 minute stop for post dripping 1133 030220441 rel 2 0 01 05 2006 F4 Condenser fan stop temperature This is used to select the temperature at which the condenser fans should be switched OFF If setting the auxiliary relay as the condenser fan output see parameter H1 this will enable adjustments according to the diagram in Figure 7 p When the compressor is first started the fans are switched ON at F4 0 2 degrees to compensate for rapid temperature increases that are not easy for the probe to follow After this control is performed normally i e e on F4 F5 off F4 In the event of condenser probe errors the condenser fan output if selected is activated Important If no condenser probe is selected the condenser fan output if selected is disabled Default F4 40 0 degrees F5 Condenser fan start differential This is the dif
10. probe 4 tE 6 gt probe 5 Important Control is always based on the virtual control probe If the probe to be displayed has not been enabled the display will show the message If the probe to be displayed is faulty the display will show the message ___ If the terminal is not present the display will remain completely dark Default tE 0 gt Remote terminal not present E 1 P Select type of probe Used to select the type of probe used for the measurements P 0 gt NTC standard with range 50190 C P 1 gt NTC with extended range 401150 C P 2 gt PTC standard with range 50T150 C For correct readings from the PTC probes the hardware must be prepared to accept PTC readings as well as NTC Note all models in the ir33 range manage NTC probes with extended range models HT Default P 0 gt NTC standard with range 50T90 C Available on all models fitted with NTC inputs 1133 030220441 rel 2 0 01 05 2006 35 A2 Configuration of probe 2 Used to configure the operating mode of probe 2 A2 0 gt probe 2 absent A2 1 gt product probe used for display only A2 2 gt defrost probe A2 3 gt condenser probe A2 4 gt antifreeze probe In any case probe 2 is used for calculating the virtual control probe Default A2 2 gt defrost probe A2 0 on model S gt probe 2 absent A3 Configuration of probe 3 As above but relating to probe 3
11. stopped and the unit restarts normal operation without performing the dripping or post dripping pha ses The LED starts flashing to indicate that the defrost request is pending awaiting the next enabling signal closing of the contact when the defrost will be performed completely Suggestion this function is useful in the following situations for example multiplexed showcases with hot gas defrost In these systems defrosts must be performed by islands and therefore at any one time some islands are enabled to be defrosted while others are disabled to prevent defrosts on the units accessible by the public during opening times Any defrost request arriving when the contact is open will remain pending until the contact closes A4 4 Start defrost from external contact This function used to start the defrost from an external contact If dl 0 and no defrost enabling signal related to the clock is set the defrost can only be performed on start up from the digital input by the supervisor and from the keypad This function is useful to run real time defrosts To perform the defrosts connect a cyclical mechanical or electronic timer to the digital input When the contact on the timer closes the defrost request is sent As seen in the description of parameter d5 a series of units can be connected to the same timer Important warning for versions operating on 12Vac and 12 24Vac When connecting a series of units to the same time
12. the code of the password allows access to the parameters 3 confirm by pressing SET the display will show the code of the first modifiable type C parameter 4 1 Modifying the parameters After having displayed the parameter either type C or type F proceed as follows 1 press Aor suntil reaching the parameter to be modified When scrolling an icon appears on the display representing the category the parameter belongs to Alternatively press prg to display a menu that is used to quickly access the family of parameters to be modified 2 scroll the menu with the Aand buttons the display shows the codes of the various categories of parameters see the Summary of operating parameters accompanied by the display of the corresponding icon if present 3 when having reached the desired category press SET to move directly to the first parameter in the category if there are no visible parameters in the selected category pressing SET will have no effect DOS at this stage continue to scroll the parameters or return to the categories menu by pressing prg press SET to display the value associated with the parameter increase or decrease the value using the Aor button respectively press SET to temporarily save the new value and return to the display of the parameter code Repeat the operations from point 1 or point 2 8 if the parameter has sub parameters press SET to display the first sub para
13. the controller automatically updates the me mory saving both the levels of visibility and the values of the parameters 6 The parameter Hdn must have the same value in all the sets of customised default parameters 7 For greater protection parameter Hdn must be set to not visible Default Hdn 0 gt standard default parameters only Hdh Anti sweat heater offset This represents the offset from the set point for the anti sweat heater function If Hdh 0 the anti sweat heater function is disabled The anti sweat heater function is used to maintain the aux1 output configured as the light or aux H1 2 3 8 9 deactivated while the control temperature virtual probe is less than St Hdh when the instrument is first powered up the HI IA dA CHt EE EF rE alarms are reset During the aforementioned alarms the aux1 output configured as above is deactivated The function is active if the light or aux functions are set to be deactivated when off H1 or H5 8 9 even when switching the controller on Default Hdh 0 0 gt function disabled 1133 030220441 rel 2 0 01 05 2006 53 54 HrL enable the synchronizer to remote the status of the master light relay to the slave controller masked parameter The parameter HrL enables the synchronizer to remote the light relay status light on the master to the slave controller Consequently the light relay on the slave will repea
14. the temperature falls by inertia below the minimum temperature threshold the low temperature alarm signal can be ignored by suitably setting the alarm bypass delay time after continuous cycle c6 To start the continuous cycle press MasterCella powercompact and powercompact small or A de aux VW ir33 power and DIN for more than 5 seconds The continuous cycle is not activated if the duration of the continuous cycle cc Is set to 0 e the temperature is below the low level threshold in reverse operation heating from parameter r3 or from digital input A4 A5 e when the unit Is OFF 6 9 1 Await continuous cycle status SThis status exists when the activation of the continuous cycle is requested however it cannot be started for one of the following reasons e compressor protection times cl c2 c3 as they delay activation of the compressor immediate or delayed alarm from external dig input A4 A5 if this delays compressor activation defrost dripping or post dripping in progress e compressor and fan start delay on start up e door open see Continuous cycle in progress below low pressure alarm LP active as this delays activation of the compressor e high condenser temperature alarm CHt as this delays activation of the compressor During the continuous cycle request the icon flashes 1133 030220441 rel 2 0 01 05 2006 6 9 2 Continuous cycle in progress Vhen the continuous cycle is r
15. unit parameters A flashing EF A flashing off off SL E2prom error operating parameters HA HACCP flashing off off automatic HACCP alarm HA HF off off automatic HACCP alarm HF HACCP flashing A rCt No off off automatic instrument enabled for programming from the remote control Add No off off automatic automatic address assignment procedure in progress Prt No off off automatic printing report LrH No off off automatic activation of low relative humidity procedure HrH No off off automatic activation of high relative humidity procedure ccb Signal start continuous cycle request ccE Signal end continuous cycle request dFb Signal start defrost call dFE Signal end defrost call On Signal switch ON off Signal switch OFF MES Signal reset alarms with manual reset reset HACCP alarms reset temperature monitoring ni n6 A flashing on on automatic indicates an alarm on unit 1 6 in the network dnL Signal download in progress di d6 A flashing off off download with errors on unit 1 6 Tab 8 a The buzzer sounds if enabled by parameter H4 The alarm relay is activated if auxiliary output 1 H1 has been assigned the alarm relay function Note the buzzer is not affected by the CAREL supervisory system 58 1133 030220441 rel 2 0 01 05 2006 8 2 Table of alarms and signals functions enabled disabled The following table highlights the functions that are enabled and disabled
16. 1 and r3 2 the defrosts are always disabled A digital input set for direct reverse cycle control has priority over the operating mode The figure shows reverse control with two compressor steps Default r3 0 gt Direct thermostat operation with defrost control r4 Automatic variation of the set point in night time operation This parameter is part of the group for control of the curtain switch together with A4 and A5 programmable for configuring the digital inputs When the curtain is closed and consequently the digital input connected to the curtain switch is closed the controller automatically increases the set point by the value assigned to r4 in direct mode cooling and automatically decreases the set point by the value assigned to r4 in reverse mode heating Important if the value of r4 is negative the controller will decrease the set point with the curtain closed in direct mode cooling and increase the set point in reverse mode heating Default r4 3 0 r5 Enable minimum and maximum temperature monitoring r5 0 disabled r5 1 enabled Default r5 0 rt Effective interval for monitoring the maximum and minimum temperature rH Maximum temperature measured in the interval rt rL Minimum temperature measured in the interval rt All these parameters are used by the instruments to record the minimum and maximum temperature measured by the room probe in a period of up to 999 hours over 41 days To enable this functio
17. 11 905 382 min 12 105 s 446 min 13 1205 510 min 14 1505 637 min 15 180 s 765 min Tab 7 b Default 3 0 gt Function disabled 1133 030220441 rel 2 0 01 05 2006 4 Probe average virtual probe This parameter is used to choose whether to control the temperature based solely on the room probe reading or alternatively whether to refer to the weighted average of the room probe S1 and probe 2 52 see the parameter A2 This parameter is useful in special applications Example if the room probe is in intake mode and probe 2 in outlet mode control can be performed based on the weighted average of the 2 values read The formula used is probe average Virtual probe S1 x 100 P S2 x P 100 where S1 room probe S2 probe 2 P value of the parameter 4 Virtual probe e 4 0 control is performed using the room probe this is the typical situation e 4 100 control is performed in reference to the values read by probe 2 e 4 50 control refers to a virtual probe calculated based on the average between the room probe and probe 2 With values above 50 probe 2 has a greater weight in the calculation vice versa for values below 50 Important in the event of faults or if probe 2 is not enabled the instrument uses the room probe only If the fault is on the room probe the Control probe error is signalled Default 4 0 gt control on room probe 5 Select C or F
18. 4 5 2 0 Tastiera standard Tasto Set Tasto down def Tasto up cc Tasto prg mute Tasto haccp Tasto aux e o Tasto on off Li Tasto luce Fig 7 r Bit Mask But Functions that can be enabled disabled ton 0 1 set Enter HACCP Report printing procedure 12 a Defrost Continuous cycle Enter HACCP 2 4 A Enable disable auxiliary output 1 Continuous cycle 3 8 Prg Mute Tab 7 q 52 r1 n H1 11 reverse output in control with dead band used to activate control with dead band St rd r rr using the auxiliary output aux1 for the reverse function H1 12 second compressor step output H1 13 second compressor step output with rotation Important Imode H1 0 is also useful for signalling power failures Default H1 1 gt relay energised with alarm active Available on all models supplied with the aux output H2 Disable keypad and or remote control Parameter H2 can be used to inhibit some functions relating to the use of the keypad for example the modification of the parameters and the set point if the unit is accessible to the public The following options are available Parameter H2 0 1 2 3 4 5 6 HACCP PRG MUTE mute UP aux a DOWN DEF defrost e set modification of type F parameters e Modification of the set point e Modification from the remote
19. 8 from Monday to Friday hours 23 minutes 57 To modify the day hour or minutes of the event access the desired parameter by pressing the up or down button and then press SET to modify the value the letter identifying the parameter disappears and at this point the value can be increased or decreased using Aor V The parameter d__ sets the day of the event as follows d_ 0 gt event disabled d__ 1 to 7 gt Monday to Sunday d__ 8 gt from Monday to Friday d__ 9 gt from Monday to Saturday d__ 10 gt Saturday and Sunday d__ 11 gt every day Setting h__ 0 to 23 m__ 0 to 59 sets the hour and minutes of the event Default d__ 0 h__ 0 m__ 0 gt Event disabled Pressing SET temporarily saves the changes to the modified parameter and returns to the submenu for setting the event The display or modification of the parameters corresponding to the event can be continued or return to the list of RTC parameters by pressing prg ton and tof light aux on off time bands These parameters are used to set the on off of the light or the aux based on the system clock to select aux or light see parameter H8 in addition the set point can be modified based on the system clock for the activation and the description of the function see parameter H9 To display set or modify one of the two events access one of the two parameters ton or toF and then press SET Use the ton paramete
20. AH see Figure 7 1 and for managing the fans see the F parameters In the event of an alarm as can be seen from the figure the value of AO in part determines the effective activation points of the temperature alarms Default A0 2 0 degrees A1 Type of threshold AL and AH Used to select whether the values of parameters AL and AH are considered absolute thresholds or relative to the value of the set point A1 0 gt AL and AH are considered as relative thresholds A1 1 gt AL and AH are considered absolute thresholds Default Al 0 gt AL and AH are considered relative thresholds AL Minimum temperature alarm This is used to determine the activation threshold for the low temperature alarm Relative threshold for low temperature alarm set point value of AL AL 0 gt Alarm disabled Absolute threshold for low temperature alarm value of AL AL 50 gt Alarm disabled Important If the threshold AL is selected as relative the value for disabling the alarm is 0 while if selected as absolute the alarm disabling value is 50 1133 030220441 rel 2 0 01 05 2006 43 allarme bassa temperatura allarme alta temperatura lt gt set point Fig 7 1 44 Warnings for the relative threshold The value of AL does not indicate the actual alarm temperature but the maximum permissible deviation from the set point changing the set point automatically changes the low temperature alarm
21. ON time c3 is ignored When the alarm stops the defrost and the continuous cycle can be performed again and the compressor returns to normal operation Important warning remember that in order to ensure the safety of the unit in the event of serious alarms all the electromechanical safety devices required to guarantee correct operation must be fitted on the unit 1133 030220441 rel 2 0 01 05 2006 Note if more than one digital input is configured as the immediate alarm the alarm will be generated when at least one of the inputs is open if control with two compressor steps is selected with or without rotation H1 H5 12 or 13 the immediate external alarm acts on both steps A4 2 Delayed external alarm The delayed external alarm is equivalent to the Immediate external alarm A4 1 except that this alarm is signalled after the time A7 from when it is detected dA signal This configuration is especially useful for managing the low pressure alarm In fact when starting for the first time the unit often detects a low pressure alarm due to the environmental conditions rather than the malfunctioning of the unit Setting a delay for the alarm will avoid false signals In fact by suitably calculating the delay if the low pressure is due to environmental conditions low temperature the alarm will be automatically reset before the delay has elapsed Note e if A7 0 the activation of the alarm does not cause t
22. This condition involves the deactivation of the compressor and the activation of the alarm relay if H1 0 1 Function in antifreeze Normal direct or reverse cycle control Normal operation Remote off from supervisor or keypad Function disabled timer restarted Defrost Normal operation Continuous cycle Sospeso 0 pendente Temperature alarm monitoring Normal operation Evaporator fan control Normal operation Function active Power on Normal operation Normally open or normally closed alarm output Output energised with AFr Auxiliary output Normal operation Light output Normal operation Second evaporator output Control output for pump down valve Condenser fan control output Second delayed compressor output Auxiliary output with switch off Light output with switch off No function associated with the AUX output Reverse output in control with dead band Second compressor step output Second compressor step output with rotation Normal operation Normal operation Normal operation Normal operation Normal operation Normal operation Normal operation Normal operation Normal operation Normal operation Door switch with compressor fan off and light management Normal operation Door switch with compressor off and light management Normal operation Curtain switch with set point variation and light management Normal operation Light sensor and light man
23. Time band linked to output configured as AUX Note the output being controlled light or AUX must be available and selected with parameter H1 Default H8 0 gt Time band linked to the light H9 Enable set point variation with time band This parameter can be used to enable the variation of the set point according to the time band see parameters ton and toF The controller modifies the set point by adding the value of parameter r4 to the time toF the new value is used for all the functions relating to the set point e g relative high and low temperature alarms control with dead band control with two compressor steps etc H9 0 gt Set point variation with time band disabled H9 1 gt Set point variation with time band enabled Note When r4 3 0 preset value the set point is increased by 3 degrees from the value used before toF at ton the value of the set point will be the value set for parameter St As the time band set by ton and tor Is related to the output auxiliary selected using parameter H8 the corresponding output will switch on at ton and will switch off at toF Therefore when H9 1 the following will be true ton normal set point and selected output on toF set point r4 and selected output off Default H9 0 gt Function disabled HPr Print profile masked parameter This is used to select the required profile for printing the report on an external printer The interface for printing the data fr
24. and relaV u 58 8 2 Table of alarms and signals functions enabled disabled in 59 1 INTRODUCTION The ir33 platform for refrigeration is a complete range of products made up of integrated electronic microprocessor controllers with LED display designed especially for the control of stand alone refrigeration units These controllers are especially suitable in applications that require high load switching power a considerable number of outputs functions and control with direct access from the keypad high front panel IP and at the same time a compact shape that significantly reduces the overall dimensions The irr33 range Is easy to install and ensures optimisation of production times for the manufacturer in mass production Numerous models are available providing the best solution for each application at the most competitive price 1 1 Main features Power supply Models are available with power supply in the following versions 12Vac 12 to 24 Vac dc switching 230Vac or 115 to 230 Vac switching All the models furthermore feature a low power mode to increase immunity to voltage drops Vhen the voltage inside the instrument falls below a certain threshold the unit switches off the display so as to reduce power consumption while still continuing to operate normally the main relays remain energised and as soon as the voltage returns to the normal level th
25. auxiliary output off until the control temperature is below the set value The AUX output Is activated when the event occurs Digital input Time band 6 5 Light management The light can be controlled by a number of sources button supervisor door switch and curtain switch The light is switched on and off in the following events Light Action Button pressing the button Supervisor variation in value from the supervisor Door switch change in the status of the contact opening closing Curtain switch change in the status of the contact opening closing Light sensor on detecting light or darkness Tab 6 f When the digital inputs selected as door or curtain switches are stable the light can always be switched on or off from the keypad or the supervisor The door switch features two different algorithms for switching the light on off e the status of the light is not affected and acts only on the compressor and fans e timed light or AUX on off events depending on parameter H8 are also active when the unit Is off Note the anti sweat heater function when the control is powered up or switched on keeps the light output off until the control temperature is below the set value The light output is activated when the event occurs 6 6 Defrost The parameter dC establishes the measurement unit for the times set by the parameters dl defrost interval and dP1 dP2 maximum defrost duration If the a
26. by pressing the AUX and DEF buttons the year month day hour minutes and duration of the last HA alarm activated can be scrolled Default O E g y03 gt M07 gt d22 gt h23 gt m57 gt t99 indicates that the last alarm HA was activated on 22 July 2003 at 23 57 and lasted 99 hours HFn Number of HF alarm events recorded As for HAn this parameter indicates the number of HF alarms activated A maximum of 15 events can be counted For each alarm event after the 15th the counter stays at 15 Default HFn 0 HF Date time of the last HF event HF1 Date time of the penultimate HF event HF2 Date time of the third from last HF event 1133 030220441 rel 2 0 01 05 2006 HF1 and HF2 access a submenu where by pressing the and buttons the year month day hour minutes and duration of the last HF alarm activated can be scrolled E g y03 gt MO8 gt d29 gt h19 gt m45 gt 98 indicates that the last alarm HA was activated on 29 July 2003 at 19 45 and lasted 98 hours Default HF 1 2 0 Htd HACCP alarm delay Delay time in minutes that added to the time Ad determines the time interval after which the HA error is activated If set to 0 HACCP monitoring both HA and HF is disabled Any alarms already saved will still be stored even when Htd 0 Default Htd 0 gt HACCP monitoring disabled 7 9 RTC and timed defrost management parameters
27. c10 Select pump down by time or pressure SYF flag E 0 1 0 cll Second compressor delay SYF S C 0 250 4 Code Parameter MSYF UOM Type Min Max Def do Type of defrost SYF flag C 0 4 0 dl Interval between defrosts SYF hours F 0 250 8 dtl End defrost temperature evaporator SYF GEE F 50 200 40 dt2 End defrost temperature aux evap SYF GSF F 50 200 40 dP1 Maximum defrost duration evaporator SYF min F 250 30 dP2 Maximum defrost duration aux evap SYF min F 250 30 d3 Defrost start delay SYF Min C 0 250 0 d4 Enable defrost on start up SYF flag C 0 1 0 d5 Defrost delay on start up SYF min E 0 250 0 d6 Display on hold during defrost SYF C 0 2 1 dd Dripping time after defrost SYF min F 0 15 2 d8 Alarm bypass after door open SYF hours i 0 15 d8d Alarm bypass after defrost SYF hrs min C 0 250 0 d9 Defrost priority over compressor protectors SYF flag C 0 1 0 d 1 Display of defrost probe 1 MSYF C F F d 2 Display of defrost probe 2 MSYF C F F dC Time base for defrost SYF flag C 0 1 0 d10 Compressor running time SYF hours C 0 250 0 dil Running time temperature threshold SYF Cr C 20 20 1 0 d12 Advanced defrost SYF C 0 3 0 dn Nominal defrost duration SYF C 1 100 65 dH Proportional factor variation in dl SYF C 0 100 50 Code Parameter MSYF UOM Type Min Max Def AO Alarm and fan differential MSYF CF E 0 1 20 2 0 Al Type of threshold AL and AH MSYF flag C 0 1 0 A
28. control e ON OFF Tab 7 n When the set point modification and parameter modification functions are inhibited neither the set point nor the type F parameters can be changed while their values can still be displayed The type C parameters on the other hand being password protected can also be modified from the keypad following the procedure described previously With the remote control disabled only the values of the parameters can be displayed but they cannot be modified in addition the mute defrost continuous cycle aux auxiliary 1 light auxiliary 2 and on off functions are disabled Warnings If H2 2 or H2 3 is set on the remote control this is immediately disabled To re enable the remote control set H2 0 or H2 1 on the keypad Default H2 1 gt all enabled H3 Enabling code for programming from the remote control Parameter H3 assigns an access code to the remote control As already described this allows the remote control to be used when there is more than one controller present on the same panel without the risk of interference For further details see the paragraph on the use of the remote control Default H3 00 gt programming from the remote control without code H4 Disable buzzer This parameter can have two values 4 0 buzzer enabled H4 1 buzzer disabled Default H4 0 gt buzzer enabled Available on all models H5 AUX2 operating mode See parameter H1 however referring to the auxiliary 2 lo
29. door switch A4 6 Remote ON OFF The digital input can also be programmed as a remote ON OFF switch When the contact is closed the controller is ON Vhen the controller is OFF e the temperature Is displayed alternating with the message OFF e the internal timer for parameter dl is updated If dl expires when the unit is OFF a defrost is performed when the unit is switched on again e the auxiliary relay set as AUX or LIGHT remains active the buzzer and the alarm relay are de activated e the controller does not perform the control functions defrosts continuous cycle signal the temperature alarms and all other functions e the compressor protection times are observed when the instrument is switched back on all the functions are re activated with the exception of defrost on start up compressor and fan delay on start up Contact closed gt ON The ON OFF from external digital input has priority over the keypad and the supervisor If A4 6 A5 6 the controller is ON with all the contacts closed Note if more than one digital input is configured as the remote ON OFF the OFF status occurs when at least one of the inputs is open if control with two compressor steps is selected with or without rotation H1 H5 12 or 13 the OFF status deactivates both steps A4 7 Curtain switch If the input is selected as a curtain switch the controller modifies the set point when the contact closes adding the value of pa
30. in the various alarm situations Code PD valve Compressor Defrost Evap fans Cond fans Continuous cycle rE Duty setting c4 Duty setting c4 unchanged unchanged unchanged unchanged EO Duty setting c4 Duty setting c4 unchanged unchanged unchanged unchanged El unchanged unchanged unchanged unchanged unchanged unchanged E2 unchanged unchanged unchanged unchanged unchanged unchanged ES unchanged unchanged unchanged unchanged unchanged unchanged E4 unchanged unchanged unchanged unchanged unchanged unchanged unchanged unchanged unchanged unchanged unchanged unchanged LO unchanged unchanged unchanged unchanged unchanged unchanged HI unchanged unchanged unchanged unchanged unchanged unchanged AFr off off unchanged unchanged unchanged unchanged IA Duty Setting A6 Duty setting A6 unchanged unchanged unchanged unchanged dA Duty setting A6 if A7 lt gt 0 Duty setting A6 If A7 lt gt 0 unchanged unchanged unchanged unchanged dEF unchanged unchanged unchanged unchanged unchanged unchanged Ed unchanged unchanged unchanged unchanged unchanged unchanged Ed2 unchanged unchanged unchanged unchanged unchanged unchanged Pd unchanged unchanged unchanged unchanged unchanged unchanged LP off off unchanged unchanged unchanged unchanged Ats unchanged unchanged unchanged unchanged unchange
31. of the defrost is prevented due to external disabling or procedures in progress AUX Flashes if the anti sweat heater function Is active ON when AUX auxiliary output AUX auxiliary output Anti sweat heater function active AUX the auxiliary output 1 and or 2 selected as AUX or LIGHT active version 3 6 light auxiliary not active in firmware version 3 6 IS activated output active ALARM ON following pre activation of the delayed external digital Delayed external alarm before No alarm present Alarms in norm operation A input alarm Flashes in the event of alarms during normal the time A7 elapses e g High low temperature or operation e g high low temperature or in the event of immediate or delayed alarm alarms from an immediate or delayed external digital input from external digital input CLOCK ON if at least one timed defrost has been set At start up If at least 1 timed defrost event No timed defrost Alarm clock ON if real comes ON for a few seconds to indicate that the Real Time has been set event set time clock Clock is fitted present SAN LIGHT Flashes if the anti sweat heater function Is active ON Light auxiliary output Light auxiliary output Anti sweat heater function 6 when the auxiliary output 1 and or 2 selected as LIGHT on version 3 6 dead band off active version 3 6 does not flash is activated in firmware version 3 6 it does not flash in auxiliary output active in anti sweat heater mode anti sweat heater mod
32. problem persists check the key connections LEDs OFF Batteries disconnected Check the batteries Tab 5 a Notes 1 at the start and the end of the UPLOAD and DOWNLOAD operations normal or extended the buzzer on the instrument will emit an audible signal 2 the DOWNLOAD operation normal or extended is possible even if the operating parameters and controller are incorrect If there is an error in the unit parameters these will be recovered by the key Be careful when recovering the unit parameters from a key as these determine the low level operation of the controller unit model type of interface assignment of logical relay to physical relay brightness of the display level of modulation of the relay control signal The unit parameters from the original model must therefore be restored to ensure the correct operation of the controller 1133 030220441 rel 2 0 01 05 2006 15 l E td ai i o i F ks il JD E a EDITO HT E E DDD e O a i Fig 5 f E Deas Ey Tiis te L ls H Bia Era Tarp Deas By Cuis i g prati Fig 5 1 5 2 Remote control The compact remote control with 22 buttons allows direct access to the following parameters Fig 5 f temperature defrost e fans e alarms e HACCP The following functions can also be controlled e start defrost e AUX e light e ON OFF mule The standard remote control feat
33. reverse output in control with dead band second compressor step output second compressor step output with rotation The controllers can be fitted with a maximum of three digital inputs or three probe inputs The associated functions are e immediate alarm e delayed alarm select probe displayed model M e enable defrost start defrost e door switch with compressor and fan shutdown and light management e remote ON OFF curtain switch with set point variation and light management e low pressure alarm door switch with fan shutdown and light management direct reverse selection light sensor and light management door switch with compressor and fans off without light management door switch with fans off without light management The controllers can be fitted with a maximum of five probes three of which as alternatives to the digital inputs The associated functions are ambient probe used to calculate the virtual control probe e product probe if necessary used to calculate the virtual control probe defrost probe main or secondary evaporator end defrost on 3 evaporator temperature probes condenser probe used if necessary for condenser fan control Other functions that enhance the range of the refrigeration controllers include real time clock for management of real time defrosts real time clock for HACCP alarms management real time clock for the activation deact
34. the HA and or HF signal and reinitialises the monitoring of HA Pressing the button mutes the buzzer and resets the alarm relay if present The date and time of the last 3 HA and HF alarms can be displayed with 6 parameters HA HA1 HA2 and HF HF1 HF2 The activation of a new HA or HF alarm shifts the list of the last 3 alarms deleting the oldest event The new alarm can be displayed using the parameter that identifies the most recent alarm that is HA or HF The counter of the alarm events HAn or HFn is increased up to a maximum value of The activation of one or both of the alarms causes the HACCP LED to flash and the display of the alarm code as well as the recording of the alarm to the E2PROM and the activation of the alarm relay or buzzer if present Pressing SET and down for more than 5 seconds resets the flashing of the HACCP LED the HA and or HF signal and reinitialises the monitoring of HA Pressing the button mutes the buzzer and resets the alarm relay if present The date and time of the last 3 HA and HF alarms can be displayed with 6 parameters HA HA1 HA2 and HF HF1 HF2 The activation of a new HA or HF alarm shifts the list of the last 3 alarms deleting the oldest event The new alarm can be displayed using the parameter that identifies the most recent alarm that is HA or HF The counter of the alarm events HAn or HFn is increased up to a maximum value of 15 1133 030220441 rel 2 0 01 05 2006 33 7 DE
35. the connector on the controller 3 press the button and check the LED red for a few seconds then green indicates that the operation was completed correctly Other signals or the flashing of the LED indicates that problems have Fig 5 d occurred refer to the table below 4 at the end of the operation release the button after a few seconds the LED goes OFF EXTENDED DOWNLOAD oy 5 remove the key from the controller pesi Fig 5 LED signal Cause Meaning and solution Red LED flashing Batteries discharged at start copy The batteries are discharged the copy operation cannot be performed Replace the batteries Green LED flashing Batteries discharged during copy or at end of During the copy operation or at the end of the operation the battery level is low Replace the batteries and copy repeat the operation Red green LED flashing Instrument not compatible The parameter set up cannot be copied as the connected controller model is not compatible This error orange signal only occurs for the DOWNLOAD function check the code of the controller and run the copy only for compatible codes Red and green LEDs ON Error in data being copied Error in the data being copied The instrument s EEPROM is corrupted and therefore the key cannot be copied Red LED on steady Data transfer error The copy operation was not completed due to a serious error when transferring or copying the data Repeat the operation if the
36. when the control temperature reaches the set point the tempe rature to be displayed is less than the value locked on the display or in any case after the time set for the alarm bypass after defrosting d8 e d6 2 gt during the defrost the instrument displays the text dEF steady on the display Note in OFF and REVERSE modes the display is unlocked after the defrost Default d6 1 gt during the defrost the last temperature read before the start of the cycle remains on the display both on the built in terminal and on the remote terminal dd Dripping time This parameter is used to stop in minutes the compressor and the evaporator fans after a defrost to facilitate evaporator dripping If dd 0 gt there Is no dripping time therefore at the end of the defrost the control functions start immediately Default dd 2 minutes Note if control with two compressor steps Is selected with or without rotation H1 12 or 13 the dripping acts on both steps d8 Alarm bypass time after defrost and or door open Indicates the time in hours that the high temperature alarm signal is ignored from after the end of a defrost cycle or from when the door to the cold room is opened if the Multifunction input is connected to the door switch see parameters A4 and A5 Important parameter d8 can be expressed in hours dC1 0 default or minutes dC1 1 Parameter dC1 is masked and consequently not visible Default d8 1 h
37. while the maximum deviation allowed AL remains fixed Note the low temperature alarm features automatic reset this means that if the temperature returns above the minimum value set the alarm signal is cancelled automatically Warnings for using the continuous cycle The low temperature alarm is also used in the continuous cycle see the description of parameter cc In fact if the temperature falls to the alarm level the continuous cycle is stopped automatically even if the selected time has not yet elapsed This deactivation however does not involve an alarm signal Default AL 0 gt low temperature alarm disabled Note for the control probe alarm the low temperature alarm is reset and monitoring reinitialised AH High temperature alarm This is used to determine the activation threshold for the high temperature alarm Relative threshold for high temperature alarm set point value of AH AH 0 gt Alarm disabled Absolute threshold for high temperature alarm value of AH AH 200 gt Alarm disabled Important if the threshold AH is selected as relative the value for disabling the alarm is 0 while if selected as absolute the alarm disabling value is 200 Warnings for the relative threshold e the value of AH does not indicate the alarm temperature but the maximum permissible deviation from the set point consequently changing the set point automatically changes the high temperature alarm while the maximu
38. 1133 030220441 rel 2 0 01 05 2006 Fig 1 a ir33 ir33 power SS ee z o LL Fig 1 b ir33DIN Fig 1 c powercompact powercompact small Fig 1 d MasterCella HACCP This function increasingly required in the refrigeration market is included as standard on all models with clock This allows the monitoring of critical points by measuring and recording the temperatures in the event of high temperature alarms or power failures Up to 3 high temperature alarms and 3 alarms corresponding to power failures can be saved Light management The ir33 platform has been enhanced by the introduction of the function for managing the light when the door opens set by parameter Keypad protection The keypad and the remote control can be disabled to avoid tampering by unauthorised persons above all in the event when the controller is installed in an area open to the public Continuous cycle The continuous cycle function ensures the operation of the compressor for the time set by the corresponding parameter This function is useful when a rapid reduction in the temperature is required Serial connection The entire range has an RS485 serial port for network connection to supervisor or telemaintenance systems using a shielded twisted pair cable Index of protection The gasket inside the front panel and the material used to make the keypad guarantee IP65 protection for the controller on the front panel In
39. 1133 platform CAR EL 1133 1133 power ir33 DIN powercompact powercompact small mastercella MasterCella a xw va Va a 5 20 5 Pa a lt a a A z a fa ca s Agra User manual E READ AND SAVE THESE INSTRUCTIONS User manual A IMPORTANT WARNINGS 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 acts 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 t
40. 3 Starting the defrost The defrost is performed by electric heater or hot gas according to the value of parameter dO If defrost by temperature has been selected the defrost is performed only if the evaporator probe reading Is less than the end defrost temperatures dP1 and dP2 or if there is a probe error This is also true in the case of two evaporators For electric heater defrost e the compressor stops pump down is run if enabled the time d3 elapses e the defrost relays for the main and second evaporators are activated to start the heaters In hot gas defrost the compressor starts e the time d3 elapses e the defrost relays for the main and second evaporators are activated to open the hot gas valve 6 6 4 Defrost in progress During the defrost procedure the display is controlled according to the setting of parameter de If during this procedure the opening of the door is detected by the external digital contact the compressor stops with the pump down procedure if enabled When the door closes the compressor resumes the defrost procedure while the status of the fans is determined by setting of parameter F3 If defrost by temperature is selected the temperature thresholds deactivate the corresponding defrost relay when the temperature exceeds the thresholds dt1 dt2 and activate the corresponding defrost relay when the temperature Is below the thresholds dt1 dt2 minus the fixed hysteresis of 1 C N
41. CtL 5 C Compressor safety time and activation parameters CMP O d Defrost management parameters dEF sh A Alarm management parameters ALM A F Fan management parameters Fan R H configuration General configuration parameters addresses enabling etc CnF AUX H haccp HACCP parameters HcP HACCP rtc RTC parameters rtc Q 1133 030220441 rel 2 0 01 05 2006 Tab 4 a 4 4 Downloading the parameters via the network 1 Press the prg and SET buttons together for more than 5 seconds the display will show the number 00 2 press the amp orW button to scroll the numbers until displaying 66 download activation password then confirm by pressing SET 3 the display will show the message dnl indicating that the download Is in progress 4 atthe end of the procedure the message dnl is cancelled and in the event of errors one of the messages d1 to d6 is displayed to indicate which unit the error occurred on 4 5 Setting the set point 1 Press SET for more than 1 second to display the set point 2 Increase or decrease the set point using the AorW buttons respectively until reaching the desired value 3 press SET again to confirm the new value 4 6 Alarms with manual reset The alarms with manual reset can be reset by pressing prg and A ptogether for more than 5 seconds if the causes are no longer present 4 7 Procedure for setting the default parameter values To set the default parameter valu
42. Defines the unit of measure degrees Centigrade or degrees Fahrenheit shown on the display 5 0 to operate in degrees Centigrade 5 1 to operate in degrees Fahrenheit Default 5 0 gt operation in degrees centigrade 6 Decimal point Used to enable or disable the display of the temperature with resolution to the tenth of a degree between 20 and 20 Note the exclusion of the decimal point is active only with reference to the display of the reading on the main and remote displays while the parameters are always set to the tenth of a degree 6 0 the readings are displayed to the tenth of a degree between 20 and 20 C 6 1 all the readings are displayed without the tenths of a degree Default 6 0 gt decimal point displayed tl Probe displayed on instrument For selecting the probe to be displayed by the instrument tl 1 gt virtual probe tl 2 gt probe 1 t 3 gt probe 2 t 4 gt probe 3 t 5 gt probe 4 tl 6 gt probe 5 tl 7 gt set point Note control is always based on the virtual control probe e if the probe to be displayed has not been enabled the display will show the message ___ Default tl 1 gt Virtual probe tE Probe displayed on external terminal Selects the probe to be displayed on the remote terminal tE 0 gt remote terminal not present tE 1 gt virtual probe tE 2 gt probe 1 tE 3 gt probe 2 tE 4 gt probe 3 tE 5 gt
43. FF Otherwise the door stays open and the light is switched on again To select this operating mode set AF gt 0 A4 12 Activation of the AUX output The digital input is used to activate deactivate the AUX output if configured with parameter H1 with the following logic Digital input AUX output open deactivation close activation Tab 7h The output is activated deactivated on closing opening the contact to make this operating mode compatible with the presence of the AUX button and the control signal from the supervisor Note if more than one digital input is configured as AUX the open status occurs when at least one of the inputs is open 1133 030220441 rel 2 0 01 05 2006 47 A4 13 Door switch with compressor and fans off and light not managed Same as for A4 5 with the difference that the light output is not modified Note I the door management algorithm depends on the parameter Ado 2 if more than one digital input is configured as the door switch the door open status will be conside red when at least one of the inputs Is open A4 14 Door switch with fans only off and light not managed Same as for A4 9 with the difference that the light output is not modified Note for A4 5 13 or 14 the Ado door management algorithm is used in both cases Default A4 0 gt Digital input not active for all other models The table below summarises the functions of the digital input correspondi
44. HACCP alarm dela MSYF min C 0 250 0 Code Parameter MSYF UOM Type Min Max Def td Defrost time band 1 SYF C d_ Day BED Days di 0 11 0 h__ Hours Hours 0 25 0 n Minutes di Min E 0 59 0 td2 Defrost time band 2 SYF C td3 Defrost time band 3 SYF C td4 Defrost time band 4 SYF C td5 Defrost time band 5 SYF C td6 Defrost time band 6 SYF C td7 Defrost time band 7 SYF C td8 Defrost time band 8 SYF C ton Light aux on time band SYF C d_ Day sia Days dl 0 11 0 h Hours BE Hours id 0 23 0 n__ Minutes dd Min i 0 59 0 to Light aux off time band SYF C d_ Day ci Days dd 0 11 0 h__ Hours id Hours di 0 23 0 n Minutes vii Min 0 59 0 tc RTC date time setting MSYF C y Year sat Years 0 0 99 00 M__ Month di Months 1 12 d___ Day of the month e Days 1 1 31 1 u___ Day of the week vici Days 6 1 7 6 h Hours vi Hours 0 0 25 0 n__ Minutes PRE Min 0 o 59 0 Note the visibility of the parameters may vary according to the models mastercella model A same default configuration as ir33 ir33power ir33DIN powercompact and powercompact small model S mastercella model D and model C and M of the other instruments same configuration as model F 1133 030220441 rel 2 0 01 05 2006 8 ALARMS AND SIGNALS sl Summary table of alarms and signals display buzzer and relay ea The following table describes the alarms and signals on the controlle
45. If the parameter is set to 1 on the other hand the system will perform a pump down cycle each time the pump down valve closes and on each successive request from the low pressure switch when there is no cooling requirement autostart situation The autostart function is disabled if Pd alarms are active or if pump down by time is selected Note the autostart function is disabled in the off status and if the controller has been switched on but the compressor has not yet been activated after the first activation of the compressor the autostart function if selected will be always active Default c9 0 gt only one pump down cycle is run whenever the pump down valve is closed c10 Select pump down by pressure or by time This parameter determines if the pump down procedure must end following the activation of the low pressure Switch or after a set time In this case after the valve closes the compressor works for time c7 or until the low pressure value is reached When this time has elapsed the compressor Is stopped irrespective of the status of the low pressure input The Pd alarm pump down ended by timeout and the compressor autostart function in pump down are disabled Default c10 0 gt pump down by pressure c11 Second compressor delay This parameter determines the delay of the second compressor compared to the main compressor during start up H1 7 Vice versa the two compressors are stopped at the same time If two co
46. Important note the input Is enabled for use with a probe only if the parameter corresponding to digital input A4 is set to O Default A3 0 gt Probe 3 Digital input absent A4 Configuration of probe 4 As above but relating to probe 4 if fitted Important note the input Is enabled for use with a probe only if the parameter corresponding to digital input AS is set to O Default A4 0 gt Probe 4 Digital input absent A5 Configuration of probe 5 As above but relating to probe 5 if fitted Important note the input Is enabled for use with a probe only if the parameter corresponding to digital input A9 is set to O Default A5 0 gt Probe 5 Digital input absent Note if more than one probe is configured with the same operating mode the controller will consider for the operating mode in question the first probe in increasing order from 2 to 5 with this configuration Example if there are two condenser probes configured A3 3 and A5 3 the controller will manage the alarm algorithm with reference to probe 3 C1 Calibration or offset for probe 1 C2 Calibration or offset for probe 2 C3 Calibration or offset for probe 3 C4 Calibration or offset for probe 4 C5 Calibration or offset for probe 5 These parameters are used to correct the temperature measured by the probes using an offset the value assigned to these parameters is in fact added to positive value or subtracted from negative value the te
47. L Low temperature alarm threshold MSYF E F 50 200 00 AH High temperature alarm threshold MSYF CEE F 50 200 0 0 Ad Low and high temperature signal delay MSYF min F 0 250 120 A4 Digital input 1 configuration SYF a 0 14 0 M C 0 14 i A5 Digital input 2 configuration MSYF C 0 14 0 A6 Stop compressor from external alarm SYF min C 0 100 0 A7 Enable alarms Ed1 and Ed2 SYF min G 0 250 0 1133 030220441 rel 2 0 01 05 2006 A8 Digital input 3 configuration SYF flag C 0 1 0 A9 Light management mode with door switch C 0 14 0 Ado High condenser temperature alarm MSYF flag C 0 0 Ac High condenser temperature alarm SYF F C 0 0 200 70 0 differential AE High condenser temperature alarm delay SYF CF C 0 1 20 5 0 Acd High condenser temperature alarm delay SYF min C 0 250 0 AF Light sensor OFF time SYF sec C 0 250 0 ALF Antifreeze alarm threshold MSYF E C 50 200 5 0 AdF Antifreeze alarm delay MSYF min C 0 15 Code Parameter MSYF UOM Type Min Max Def FO Fan management F flag C 0 2 0 Fl Fan start temperature F Us F 50 200 5 0 F2 Fan OFF with compressor OFF F flag C 0 I F3 Fans In defrost F flag C 0 1 I Fd Fan OFF after d
48. Normal operation Light activation from keypad or supervisor Normal operation Auxiliary activation from keypad or supervisor Normal operation Alarms See table of alarms and signals Virtual control probe alarm Normal operation Product probe alarm Normal operation Defrost probe alarm Defrost ended due to timeout Condenser probe alarm Normal operation Antifreeze probe alarm Normal operation 1133 030220441 rel 2 0 01 05 2006 Tab 6 h 25 Sbrinamento dE lt dn dE lt dn dE gt dn HH HA dl dll di d di tempo Intervallo di tempo dl Nuovo intervallo di tempo Intervallo di tempo dl impostato impostato tra gli sbrinamenti calcolato tra gli sbrinamenti tra gli sbrinamenti Fig 6 a 24 6 7 New defrost activation modes 6 7 1 Defrost according to compressor running time To enable the controller for this operating mode set a value gt 0 for parameter d10 This mode affects the start defrost that is according to the evaporator temperature parameter d11 the controller checks the compressor running time parameter d10 and decides whether to activate the defrost or not There are two parameters d10 compressor running time with the evaporation temperature less than the threshold after which a defrost request Is generated d11 evaporation temperature threshold The defrost is generated if the compressor has operated f
49. SCRIPTION OF THE OPERATING PARAMETERS 34 7 1 Temperature probe management parameters oN Code Parameter MSYF UOM Type Min Max Def Pw Password MSYF C 0 200 22 2 Measurement stability MSYF C 1 15 4 B Probe display response MSYF C 0 15 0 4 Virtual probe MSYF C 0 100 0 5 Select C or F MSYF flag C 0 1 0 6 Decimal point MSYF flag C 0 0 tl Display on internal terminal MSYF C 7 1 E Display on external terminal MSYF C 0 6 0 P Select type of probe MSYF C 0 2 0 A2 Configuration of probe 2 MYF C 0 3 2 S C 0 3 0 JA3 Configuration of probe 3 MSYF C 0 3 0 JA4 Configuration of probe 4 MSYF G 0 3 0 A5 Configuration of probe 5 MSYF C 0 3 0 Jal Calibration of probe 1 MSYF F C 20 20 0 0 JO Calibration of probe 2 MSYF SGF C 20 20 0 0 13 Calibration of probe 3 MSYF CF C 20 20 0 0 4 Calibration of probe 4 MSYF 07 C 20 20 0 0 c5 Calibration of probe 5 MSYF C F C 20 20 0 Tab 7 a Note par A5 and c5 refer to instruments with 5 relays ir33DIN powercompact and MasterCella 2 Measurement stability Defines the coefficient used to stabilise the temperature reading Low values assigned to this parameter allow a prompt response of the sensor to temperature variations but the reading becomes more sensitive to disturbance High values slow down the response but guarantee greater immunity to disturbance that Is a more s
50. TCONO3BO 3 m A e PSTCONO5BO 5 m IROOR 0000 for MasterCella only PSTCONO300 3 m FE is PSTCON1000 10 m IROPZDSPoo PSTCONO BO SDN IROOR 0000 PSTCONO BO IROPZSER30 PS IROPZSEM30 MasterCella PSTCONO 00 Hl IROOR 0000 y Fig 5 v 18 1133 030220441 rel 2 0 01 05 2006 6 DESCRIPTION OF THE FUNCTIONS 6 1 Models Below Is a list of the functions relating to the various models of controller Function M S Y F temperature displa display second probe with external Y contact temperature alarm monitoring Y compressor control Y Y SISI AJS defrost with compressor stop defrost with heater or hot gas continuous cycle duty setting evaporator fans auxiliary output 1 auxiliary output 2 ANNE ONEONTA SS SI SS _ ir33 only powercompact and ir33 DIN only mastercella only SISSI SA SISAS A AL ASN A SISISINSISISI AEN NSIS SINIS S y S D D The controllers can be fitted with a maximum of two auxiliary relays The associated functions are alarm output normally open or closed auxiliary output light output second evaporator output control output for pump down valve control output for condenser fans e second delayed compressor output auxiliary output with deactivation when OFF light output with deactivation when OFF no function associated with the output e
51. a confirmation message to the application containing the unit code and firmware revision message V When the message sent by the remote application is recognised the instrument displays the message Add for 1 second followed by the value of the assigned serial address 2 the application on receiving the confirmation message from the units connected to the network saves the Information received in its database increases the serial address and resumes sending the message lt IADR gt The procedure can be repeated starting from point 2 on another unit connected to the network until all network addresses are defined O Note when the operation for assigning an address to an instrument has finished for reasons of safety the operation is inhibited for 1 minute on that instrument Consequently a different address cannot be re assigned to the instrument during that time 14 1133 030220441 rel 2 0 01 05 2006 5 ACCESSORIES 5 1 Parameter copying key Programming keys PSOPZKEY00 A0 The programming keys PSOPZKEY00 Figure 5 a and PSOPZKEYAO Figure 5 b are used to copy the complete set of parameters relating to the CAREL 1r33 controller parameters The keys must be connected to the connector 4 pin AMP fitted on the compatible controllers and work even without switching the controller on Programming keys IROPZKEY00 A0 The programming keys IROPZKEY00 A0 unlike the PSOPZKEY00 A0 with the use of the configuration k
52. agement Normal operation Auxiliary output activation switch Normal operation 1133 030220441 rel 2 0 01 05 2006 A 52 Function active Function in antifreeze Door switch with compressor fan off no light management Normal operation Door switch with compressor off no light management Normal operation Light activation from keypad or supervisor Normal operation Auxiliary activation from keypad or supervisor Normal operation Alarms See table of alarms and signals Virtual control probe alarm Normal operation Product probe alarm Normal operation Defrost probe alarm Normal operation Condenser probe alarm Normal operation Antifreeze probe alarm Activation of AFr alarm Tab 6 p 6 15 Special functions for the management of multiplexed cabinets mpx 6 15 1 Multiplexed defrost The multiplexed defrost allows the showcases belonging to the same sub network to be defrosted in synch As regards the instruments the function is managed by a synchronizer that controls the start and the end of the defrost as well as checking when all the controllers have reached the end before the dripping phase The master spontaneously starts the defrost from any of the sources RTC keypad supervisor at intervals The synchronizer detects the start of the defrost on the master and then activates it on the slaves The master and slaves tell the synchronizer when they have reached the end d
53. al operation Defrost probe alarm Normal operation Condenser probe alarm Normal operation Antifreeze probe alarm Normal operation Tab 6 1133 030220441 rel 2 0 01 05 2006 29 rr rn rd REVERSE zona di non intervento Grandezza controllata St Fig 6 d rr rn 2 rn rn 2 Temperatura St Fig 6 e Zona neutra Direct 6 12 Control with second step Control with a second step can be activated using the aux1 output H1 12 or 13 with selection of rotation The set point for the second step is equal to the sum of the set point St and the parameter rd 2 which represents the differential Control in reverse mode is possible for the second step in the same way as for the first parameter r3 digital input therefore three steps are possible in reverse with dead band rr St rd 2 rd control la Below is a diagram of control with the second step in the case of direct operating mode r3 0 and 1 Fig 6 f Note the step corresponding to the aux output Is associated with the timers c0 c1 02 c3 In addition parameter c11 Is active setting the activation delay between the first and second step so as to Dred distribute the starts over time no delay is available when deactivating If the curtain switch function is enabled A4 7 the controller modifies the set point when the contact closes adding or subtracting the value of parameter r4 The new value is u
54. are disabled Default dl 8 hour 40 1133 030220441 rel 2 0 01 05 2006 dt1 evaporator end defrost temperature set point This parameter is used to set the end defrost temperature measured on the evaporator In any case the maximum defrost duration is equal to the value in minutes set for parameter dP1 e if when a defrost is requested the temperature measured by the defrost probe on the evaporator Is greater than the value set for the end defrost the cycle is not performed including the dripping and post dripping phases The same Is true for the defrost on start up from digital contact from RTC and from the keypad if the defrost probe on the evaporator is faulty or disabled the controller performs a timed defrost with a duration equal to the value set for parameter dP1 if the end defrost set point is not reached within the time set for parameter dP1 the defrost is stopped If enabled parameter A8 the error Ed1 is displayed which persists until the start of the next defrost cycle In the defrost by temperature the parameter establishes the threshold for activating or deactivating the corresponding defrost relay Default dt1 4 C dt2 end defrost temperature set point auxiliary evaporator dt2 acts in the same way as parameter dt1 described above but referring to the auxiliary evaporator Note for dt1 and dt2 in the defrost by temperature the parameter establishes the threshold for activating or deactivatin
55. at heater function the outputs configured as the light or auxiliary can be controlled by the user using the keypad the supervisor or the digital inputs If the aux output is configured as light or auxiliary on power up it maintains the same status as prior to shutdown If the anti sweat heater function is enabled this is no longer true on power up the output remains off for the entire time that the function remains active When the control temperature virtual probe reaches the value of St Hdh the function ends activating the light output and the auxiliary output irrespective of their status prior to shutdown Function with anti sweat heater Normal direct or reverse cycle control Normal operation Remote off from supervisor or keypad Function restarted when switching on Defrost Normal operation Continuous cycle Normal operation Temperature alarm monitoring Normal operation Evaporator fan control Normal operation Function active Power on Normal operation Normally open or normally closed alarm output Normal operation Auxiliary output Normal operation Light output Normal operation Second evaporator output Control output for pump down valve Condenser fan control output Second delayed compressor output Auxiliary output with switch off Light output with switch off No function associated with the AUX output Reverse output in control with dead band Second compressor step output Second co
56. cedure Configuration of the digital inputs The digital inputs can be configured and used as NTC probe inputs by simply setting a parameter Connectors Models fitted with spade connectors or fixed screw terminals Options programming key RS485 serial interface can be added at any time e optional repeater display for models with switching power supply For further information see the chapter on Accessories Number of relays Number of relays Compressor Light 1133 from 1 to 4 8A and 16 A I133power from 1 to 4 2Hp Ir33DIN from 1 to 5 16 A and 2Hp powercompact from 2 to 5 8A 16 A and 2Hp powercompact small from 2 to 4 2Hp masterCella from 3 to 5 30 A 70A 2Hp 1133 030220441 rel 2 0 01 05 2006 2 USER INTERFACE 2 1 Display 1133 1r33 DIN ir33 power MasterCella powercompact powercompact small Fig 2 a ICON FUNCTION DESCRIPTION Normal operation Start up ON OFF BLINK COMPRESSOR ON when the compressor starts Flashes when the activation Compressor on Compressor off awaiting activation O of the compressor is delayed by safety times FAN ON when the fan starts Flashes when the activation of the Fan on Fan off awaiting activation fan is prevented due to external disabling or procedures in progress DEFROST ON when the defrost is activated Flashes when the activa Defrost in progress Defrost not in progress awaiting activation a tion
57. configuration mode check the values then save them to the EEPROM using the special procedure At then end of the operation the EEPROM error signal will be cancelled if there Is a recurring EF EEPROM error when loading a set of customised default parameters the EEPROM on the instrument should be corrected using the hardware programming key after loading a set of customised default parameter the controller automatically updates the memory saving both the levels of visibility and the values of the parameters Hdn must have the same value in all the sets of customised default parameters for greater protection parameter Hdn must be set to not visible 4 8 Semi automatic serial address assignment procedure The automatic setting of the serial address is a special procedure that by using an application installed on a PC connected to the CAREL network included in the PlantVisor supervision and monitoring software sets and manages the addresses of all the instruments that include this feature in a simple way Using the remo te application start the Network definition procedure the application begins to send a special message lt IADR gt across the network containing the network address Then 1 press the prg button on the keypad of the instrument connected to the network the instrument reco gnises the message sent by the remote application automatically setting the address to the required value and sending
58. cording to compressor running time if enabled defrost from digital input if enabled defrost from keypad and supervisor defrost started from digital input if enabled direct reverse from digital input if enabled modification and display of frequent and configuration parameters and the set point ON OFF auxiliary relay 1 set as LIGHT or AUX select the probe displayed model M only compressor autostart in pump down if enabled door switch with fan and compressor shutdown limited to light management remote ON OFF curtain switch limited to light management door switch with fan shutdown only limited to light management management of the light sensor updating of the defrost interval timer dl control probe error rE probe 1 error E0 probe 2 error E1 probe 3 error E2 probe 4 error E3 probe 5 error E4 clock alarm Etc EEPROM alarm unit parameters EE EEPROM alarm operating parameters EF light or AUX on off based on the set time bands modification of the set point based on the set time bands ANNES SISSON SENET NNN SIN SA NSF Tab 6 d Note In the OFF status the defrost interval dl is always updated to maintain the regularity of the interval If a defrost interval expires during the OFF status this event is saved and when controller i
59. d If event one contact is open the unit is OFF status switched OFF Function Enabled Disabled compressor control pump down valve OFF and shut AUX control H1 11 with dead band second compressor step control with and without rotation H1 12 13 defrost cyclical and manual fan control fan control at low relative humidity if enabled continuous cycle condenser fan control if enabled low temperature alarm LO alarm reset and monitoring initialised high temperature alarm HI alarm reset and monitoring initialised immediate alarm from external contact IA alarm reset and monitoring initialised delayed alarm from external contact dA alarm reset and monitoring initialised defrost ended due to timeout alarm Ed1 and Ed2 alarm reset pump down ended due to maximum time alarm Pd alarm reset low pressure from external contact alarm LP alarm reset and monitoring initialised autostart alarm in pump down AtS alarm reset and not displayed pre alarm high condenser temperature cht alarm reset and monitoring initialised high condenser temperature alarm Cht alarm reset and monitoring initialised door open for too long alarm dor alarm reset antifreeze alarm AFr alarm reset HA HACCP alarm alarm reset and monitoring initialised HF HACCP alarm alarm reset and monitoring initialised buzzer OFF and alarm relay non alarm status HACCP control defrost according to programmed time bands defrost ac
60. d power ups in the event of frequent power drops Default c0 0 gt no minimum delay is set Example setting c0 6 forces the compressor to wait 6 minutes before starting from when power returns In the event of systems with more than one compressor the parameter cO can also be used to avoid simultaneous starts of a series of units Simply set a different value of c0 for each compressor Note the second compressor step for the aux output H1 12 13 is associated with the timers co AMIA c1 Minimum time between two successive starts of the compressor Sets the minimum time in minutes that must elapse between two starts of the compressor irrespective of the temperature and the set point Setting this parameter limits the number of starts per hour Default c 0 gt no minimum time is set between two starts Example if the maximum number of activations hour allowed is 10 simply set c1 6 to ensure that this limit is respected Note the second compressor step for the aux1 output H1 12 13 is associated with the timers co c1 c2 c3 c2 Minimum compressor OFF time SSets the minimum time in minutes for the compressor to remain OFF The compressor is not started again until the minimum time selected c2 has elapsed from when it last stopped Note this parameter is useful to ensure the balancing of the pressure after the compressor stops for systems with hermetic and capillary compressors The sec
61. d unchanged cht unchanged unchanged unchanged unchanged unchanged unchanged CHt off off unchanged unchanged unchanged unchanged dor unchanged unchanged unchanged unchanged unchanged unchanged Etc unchanged unchanged unchanged unchanged unchanged unchanged EE off off unchanged off off unchanged EF off off not performed off off not performed HA unchanged unchanged unchanged unchanged unchanged unchanged HF unchanged unchanged unchanged unchanged unchanged unchanged nl n6__ unchanged unchanged unchanged unchanged unchanged unchanged dn unchanged unchanged unchanged unchanged unchanged unchanged d1 d unchanged unchanged unchanged unchanged unchanged unchanged Tab 8 b Code AUX dead zone AUX light anti sweat AUX auxiliary anti sweat AUX second step rE off off off Duty setting C4 EO off off off Duty setting C4 El unchanged unchanged unchanged unchanged E2 unchanged unchanged unchanged unchanged E3 unchanged unchanged unchanged unchanged E4 unchanged unchanged unchanged unchanged ___ _ unchanged unchanged unchanged unchanged LO unchanged unchanged unchanged unchanged HI unchanged off off unchanged AFr unchanged unchanged unchanged off IA off off off Duty setting A6 dA off if A 0 off if A7 lt gt 0 off if A7 lt gt 0 Duty setting A6 if A 0 dEF unchanged unchanged unchanged unchanged Ed1 unchanged unchanged unchanged unchanged Ed2 unchanged unchanged unchanged unchanged Pd unchanged unchanged unchanged unchanged LP unchanged unchang
62. delay between enabling of the defrost or request to enable and the effective start e the defrost digital input see parameter A4 can be usefully employed to perform defrosts in real time connecting a timer to the input The defrost will be activated when the timer contact closes If several units are connected to the same timer parameter d5 should be used to delay the various defrosts thus avoiding power overloads In addition to avoid unwanted defrosts started by the clock inside the instrument set parameter dl 0 manual defrosts only started from the keypad by the RTC by the calculation of the compressor running time or by the multifunction contact Important warning when connecting a series of units to the same timer the best solution Is to insulate all the contacts galvanically fitting intermediate relays for each contact Default d5 0 gt no delayed defrost when switching the instrument on or following the activation of the multifunction input 1133 030220441 rel 2 0 01 05 2006 4 42 d6 Display during defrost Specified values e d6 0 gt during the defrost the instrument displays the text dEF alternating with the value read by the probe selected using parameter tl This is to signal that any high temperature values are due to the defrost procedure in progress e d6 1 gt during the defrost the last temperature shown before the start of the cycle remains on the display The display returns to normal
63. dels available with 3 and 5 rows of terminals In particular the second accessory allows direct access with the cables from the loads live neutral and earth to this board alone thus avoiding having to make the connections during installation to the support terminal block on the mastercella Codes e MDOPZCA000 3 sets of connections e MDOPZCBOOO 5 sets of connections 5 10 Repeater display interface option The repeater display interface option IROPZDSP00 shown in the figure below allows the ir33 to inter face with a repeater display IROOR 0000 to show the temperature measured by the third probe For further details on the connection refer to the specific instruction sheet Fig 5 5 5 11 IR00R 0000 display terminal This can be connected in parallel with the interface for setting the parameters It displays the tempera ture read by the third probe installed in the hottest point of the cabinet as required by the EN 441 13 standard Codes IROORG0000 ir33 green repeater display IROORGO0000 ir33 red repeater display 5 12 PSTOOVR100 display terminal powercompact Same as for the IROOR 0000 Fig 5 u 5 13 Optional interface repeater display connection cable The connection cables between the interface and the repeater display have the following codes ir33 for 1133 1133 power Ir33DIN powercompact and powercompact small powercompact e PSTCONO1B0 1 5 m powercompact small PS
64. e and comes on when the dead band output is active SERVICE Flashes in the event of malfunctions for example E2PROM No malfunction Malfunction e g E2PROM error errors or probe faults or probe fault Contact service DISPLAY Shows temperature in range 50 to 150 C The temperature is displayed with resolution to the tenths between 19 9 and 19 9 C 59 9 in firmware revision 3 4 The display of the tenths can be disabled by setting a parameter HACCP ON if the HACCP function is enabled Flashes when there are HACCP function enabled HACCP function not HACCP alarm saved HA and or HACCP new HACCP alarms stored HA and or HF alarm shown on enabled HF the display CONTINUOUS ON when the CONTINUOUS CYCLE function is activated CONTINUOUS CYCLE opera CONTINUOUS CYCLE CONTINUOUS CYCLE operation eee CYCLE Flashes if the activation of the function is prevented dueto tion activated function not activated requested external disabling or procedures in progress E g minimum compressor OFF time Tab 2 a 1133 030220441 rel 2 0 01 05 2006 2 2 ir33 ir33 power and ir33DIN keypad 1133 Ir33 power 1133 DIN Fig 2 b Icon Normal operation Start up Automatic address assignment request pressing the button alone pressing together with other buttons If pressed for more than 5 seconds accesses PRG SET if pressed together for more than 5 seconds If pressed for more than 5 If pressed for mor
65. e display comes on again LED display The controller is fitted with a very powerful and aesthetically pleasant display with 3 digits and decimal point minus sign and icons to simplify the reading of the values and the operating status Alarm buzzer All models are fitted with a buzzer to signal the alarms Keypad Keypad with 4 or 8 buttons depending on the product with clear indications and direct functions Remote control To simplify the setting and display of the parameters depending on the model the instrument can be fitted with an infrared receiver to allow the use of the new compact remote control this device can be used on a series of 1133 controllers in the same room without problems of interference In fact each controller is identified by a different access code Duty setting This function ensures the operation of the compressor even when the control probe room probe Is faulty If the probe is disconnected or short circuited the compressor is activated at set intervals with a running time in minutes equal to the value assigned to the duty setting parameter parameter C4 and a fixed OFF time of 15 minutes Smart defrost All ir33 series controllers can as standard manage the defrost functions in new modes with much more efficient algorithms for optimising the times see the paragraph on smart defrosts Multifunction input All the instruments have two digital inputs that can be used in different modes depending
66. e set using parameter r3 3 If control with two compressor steps is selected with or without rotation H1 H5 12 or 13 the DIRECT or REVERSE status alarm acts on both steps A4 11 Light sensor The digital input is used to read a light sensor actually an analogue input from which a digital signal is taken using the parameter or threshold of the light sensor The light sensor may be located in the door stop inside the cold room or cabinet In the first case the sensor signals the opening and the closing of the door because with the door open light is signalled and with the door closed darkness is signalled the sensor Is located in the door stop and thus will be shadowed when the door is closed The inside light will be automatically switched on when the door is open and switched off when the door is closed The light stays OFF for a minimum time of 5 seconds to avoid rapid successive impulses of the light relay To select this operating mode set AF 0 In the second case the light sensor signals the opening of the door of the cold room or the cabinet due to the outside light that the sensor detects thus activating the inside light The closing of the door is measured by time as the light inside the cold room or cabinet will illuminate the sensor After time AF greater than 0 the inside light is switched off for 5 seconds If the light sensor signals darkness the door must be closed and the light will therefore remain O
67. e than 1 Prg the menu for setting the type F parameters accesses the menu for setting the type C parameters seconds at start up activates second starts the automatic are frequent Mutes the audible alarm buzzer configuration or downloading the parameters PRG UP the RESET default parame address assignment pro and deactivates the alarm relay AUX if pressed for more than 5s resets any alarms with ters procedure cedure manual reset mute PRG MUTE If pressed for more than 1 s activates deacti UP AUX DOWN DEF if pressed together for more than 5 A vates the auxiliary output seconds activates deactivates continuous cycle operation gi UP AUX SET if pressed together for more than 5 secon ds starts the report printing procedure if the controller is connected to the printer interface UP AUX PRG MUTE UP AUX if pressed together for more than 5 seconds resets any active alarms with manual reset If pressed for more than 5 seconds activates a DOWN DEF UP AUX if pressed together for more than 5 def manual defrost seconds activates deactivates continuous cycle operation v DOWN DEF SET if pressed together for more than 5 se conds displays a sub menu used to access the parameters relating to the HACCP alarms HA HAn HF HFn DOWN DEF If pressed for more than 1 second displays SET PRG MUTE if pressed together for more than 5 Set and or sets the set point seconds acc
68. ed by the defrost The defrost is ended early in the following situations e changeover from Direct operating mode with defrost to Reverse cycle mode heating by parameter r3 or the digital input A4 A5 end of enabling signal from external digital contact the defrost request remains pending e instrument switched OFF from the keypad supervisor and digital input end defrost from supervisor and keypad If the defrost is completed early the dripping and post dripping with the fans OFF phases are not performed as if the times were 0 Special case if the controller is running a hot gas defrost and a low pressure alarm occurs the compres sor will stop due to the low pressure alarm and the defrost will probably end by timeout At the end of the defrost e the compressor is stopped hot gas and pump down is run if enabled if a dripping time is set dd e the fans are stopped if a dripping time dd or fans off for post dripping Fd is set e the defrost relay is disabled the alarm bypass time after defrost is activated d8 e any pending defrost requests are reset If the dripping time is set to zero the compressor remains in the previous status and normal control resu mes directly If the dripping and post dripping times are set to zero the compressor and the fans remain in the previous status and normal control resumes 6 6 6 End multiplexed defrost The multiplexed defrost occurs on the master
69. ed unchanged off Ats unchanged unchanged unchanged unchanged cht unchanged unchanged unchanged unchanged CHt off off unchanged off dor unchanged unchanged unchanged unchanged unchanged unchanged unchanged unchanged EE off off off off EF off off off off HA unchanged unchanged unchanged unchanged HF unchanged unchanged unchanged unchanged nl n6 unchanged unchanged unchanged unchanged dn unchanged unchanged unchanged unchanged dl d6 unchanged unchanged unchanged unchanged Carel reserves the right to modify or change its products without prior notice 1133 030220441 rel 2 0 01 05 2006 59 tab 8 c CAREL CAREL S p A 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 030220441 rel 2 0 01 05 2006
70. efrost condition before the dripping phase The synchronizer sends a signal to all the units in the defrost status to end the procedure and pass to the dripping phase when all of them have reached the end defrost condition including the end defrost by time out parameter dP Note the synchronization of the multiplexed defrost is only activated in the Master and Slave controllers In 1 to 6 In the case of Slaves the synchronization only takes place if the defrost has been started from the Supervisor 6 15 2 Remote alarm signals The alarm signals can be activated on other controllers in the system This means that on each controller the synchronizer can activate an alarm signal relating to another controller using the symbol nx where x may be between 1 and 6 Therefore for example if the controller with local network address 2 slave 2 has an alarm the signal n2 will be displayed on the controllers enabled The parameter HSA enables the synchronizer to send the alarms to the controller from other devices in the local network When displaying the remote alarms the alarm relay if selected is activated Note the synchronizer decides which alarms are signalled remotely 6 15 3 Remote light and auxiliary output The light and aux relays on the master and on the slaves connected in the local network can be synchro nized The parameters Hrl and HrA enable the synchronizer to send the status of the master light and the auxiliary rela
71. ents where this Is fitted by pressing SET If defrost probe 1 is disabled three horizontal dashes _ _ _ will be displayed d 2 Defrost probe 2 reading As for parameter d 1 described above but refers to defrost probe 2 dC Time base Used to modify the measurement unit used to count the times set for parameters dl defrost interval dP1 and dP2 defrost duration dC 0 gt dl expressed in hours dP1 and dP2 in minutes dC 1 gt dl expressed in minutes dP1 and dP2 in seconds The parameter dC 1 can be used to test defrost operation at shorter times In addition it is useful for using the instrument to manage air driers The defrost cycle then becomes the condensate discharge cycle which must be performed at close intervals minutes and for short durations seconds Default dC 0 gt dl expressed in hours dP1 and dP2 in minutes d10 Compressor running time This parameter indicates the compressor operating time in hours with the temperature below the threshold indicated by the parameter d11 after which a defrost request is generated Setting d10 0 disables the function Note if control with two compressor steps is selected with or without rotation H1 12 or 13 the compressor running time is only calculated on the first step Default d10 0 gt Function disabled 1133 030220441 rel 2 0 01 05 2006 d11 Running time temperature threshold This parameter indicates the evaporation temperature below which the com
72. er c9 with the pump down valve closed on the high pressure request from the pressure switch The compressor remains OFF until the controller requires cooling When reaching the set point a pump down procedure is run and the alarm is automatically reset if the low pressure is reached within the time c7 Low pressure is monitored by connecting the low pressure switch to one of the two digital inputs and setting the parameter A4 or A5 Pump down by time c10 1 When the compressor operating time c7 is reached after the opening of the valve the compressor Is stopped irrespective of the low pressure reading and the Pd alarm is deactivated In any case the compressor is stopped when reaching the low pressure In this case autostart in pump down is disabled Default c7 0 gt pump down disabled c8 Compressor start delay after opening of PD valve This parameter determines after how many seconds from the opening of the pump down valve the compressor starts It is useful to avoid activating the LP alarm unnecessarily The low pressure alarm LP with valve open and compressor ON is activated by the opening of the pressure switch This alarm stops the compressor and is reset automatically The parameter is active if c7 0 Default c8 5 gt 5 seconds delay c9 Enable autostart function with PD operation active when C7 6 If the parameter is set to 0 the system will perform a pump down cycle each time the pump down valve closes
73. es if Hdn 0 proceed as follows 1 switch the instrument off 2 switch the instrument on again holding the prg and SET buttons until the message _std_ is shown on the display Note the default values are set only for the visible parameters e g C or F according to the model see the table of Operating parameters If Hdn lt gt 0 a number of sets of customised default parameters are available Proceed as follows 1 switch the instrument off 2 switch the instrument on again holding prg and SET until the value 0 Is displayed 3 use Aand to select the desired set of default parameters The sets between 0 and Hdn can be chosen 4 pressing the button shows the message Std on the display Set Customisable Note 0 NO The levels of visibility are not modified Used to set the values of the visible parameters only 1 2 3 YES Sets the levels of visibility and the values of all the operating parameters 45 0 The unit parameters are not set Tab 4 b Note e The set of customisable default parameters can only be used on the controller if there is suitable hardware expanded EEPROM memory e if when loading a set of customised default parameters there is an EF EEPROM error memory error on the controller the previous parameters can be restored by switching the instrument off and on again if there is an EF EEPROM error to maintain the loaded parameters enter parameter
74. es selected see the C parameters If after opening the door remains open for a time longer than d8 the controller returns to normal operation e compressor and fan ON if requested e light OFF the reading flashes the buzzer and the alarm relay are activated the temperature alarms are enabled when the door closes the temperature alarm delay d8 is not set If after being closed for the first time the door remains closed for longer than time d8 or if the light is switched off manually the controller restarts normal operation e compressor and fan ON if requested e light OFF the temperature alarms are enabled the temperature alarm delay d8 is set If after the door is closed for the first time the light is switched off manually the controller resumes normal operation Note 1 if the light was previously switched on manually when the door is closed for the second time it Is automatically switched off 2 if more than one digital input is configured as the door switch the door open status will be considered when at least one of the inputs is open 3 if control with two compressor steps is selected with or without rotation H1 H5 12 or 13 opening the door deactivates both steps Warning even when the fan is managed by the fan controller see the F parameters the fans are forced to stop when the door is open This algorithm resolves any problems relating to faults or malfunctions of the
75. esses the menu for setting the type C parameters configuration or downloading the para meters SET DOWN DEF if pressed together for more than 5 seconds displays a sub menu used to access the SET parameters relating to the HACCP alarms HA HAn HF HFn SET UP AUX if pressed together for more than 5 seconds starts the report printing procedure if the controller is connected to the printer interface Tab 2 b Procedure for displaying and deleting the HACCP alarms Press W SET for more than one second the display will show the name of the first of the parameters of the HA and HF alarms use the A buttons to display the codes relating to the HA and HF alarms when having reached the desired parameter press SET to display the value if the selected parameter is HA or HF us to scroll the year month day hour minutes and duration of the last HA or HF alarm activated e g y03 MO7 d22 h23 m57 t99 start again The sequence indicates that the last HA or HF alarm was activated on 22 July 2003 at 23 57 and lasted 99 hours Press SET again to return to the list of the parameters relating to the HA and HF alarms Sa aoe iS The following operations are possible from inside the menu a delete the HACCP alarm by pressing W SET for more than 5 seconds the message rES indicates that the alarm has been deleted the HACCP LED stops flashing the HA and or HF signal is also reset and the monitoring
76. estoration of the next correct pump down cycle 6 8 4 Low pressure alarm LP The low pressure alarm LP is activated when the pressure switch signals a low pressure situation with the pump down valve open and the compressor operating The low pressure alarm signal is nonetheless delayed by the time set for parameter A7 Low pressure Is not signalled during the compressor start up phase opening of the pump down valve and subsequent activation of the compressor after the time c8 during the shutdown of the compressor in pump down and during the compressor autostart cycle in pump down The low pressure alarm shuts off the pump down valve and the compressor and is automatically reset The low pressure alarm can be reset in any situation Note if control with two compressor steps is selected with or without rotation H1 12 or 13 the pump down is performed when both steps are deactivated The autostart function re activates both steps 6 9 Continuous cycle Pressing A for more than 5 seconds activates the continuous cycle function that is the compressor continues to operate independently of the controller for the time cc so as to lower the temperature even below the set point If time cc is set to 0 the continuous cycle is never activated The continuous cycle is stopped after the time cc or when reaching the minimum specified temperature corresponding to the minimum temperature alarm threshold AL If after the end of the continuous cycle
77. ferential used to control the condenser fans Default F5 5 0 7 7 General configuration parameters AUX Code Parameter MSYF UOM Tipo Min Max Def HO Serial address MSYF C 0 207 1 H1 Function of relay 4 MSYF flag C 0 13 H2 Disable keypad IR MSYF flag C 1 6 H3 Remote control enabling code MSYF C 0 1255 1 0 H4 Disable buzzer MSYF flag C 0 0 H5 Function of relay 5 C La 10 3 H6 Lock keypad MSYF C 0 25 0 H8 Select activation of output with time band MSYF flag C 0 0 H9 Enable set point variation with time band MSYF flag C 0 1 0 Hdh _ Anti sweat heater offset MSYF C F C 50 200 0 0 Tab 7m Note par H5 refers to the instruments with 5 relays ir33DIN powercompact and MasterCella parameters HPr HrL HrA HsA and In are masked and consequently only visible using the programming kit IROPZPRG00 HO Serial address This is used to assign to the instrument an address it responds to when connected to a supervisory or telemaintenance system Default HO 1 H1 Operating mode logic of output AUX1 Establishes whether the fourth relay is used as an auxiliary output The following functions can be associated H1 0 alarm output normally energised The relay is de energised when an alarm occurs The AUX output in alarm mode can be set to operate either with the relay energised or de energised The latte
78. g the corresponding defrost relay Default dt2 4 C dP1 Maximum evaporator defrost duration Determines the maximum defrost duration on the evaporator in minutes or seconds see parameter dC if defrost by temperature Is selected If timed defrost has been selected this is the actual duration of the defrost Default dP1 30 minutes dP2 Maximum defrost duration auxiliary evaporator As for parameter dP1 described above but refers to the auxiliary evaporator Default dP2 30 minutes d3 Defrost start delay This parameter determines the time that must elapse when the defrost is activated between the stopping of the compressor electric heater defrost or the starting of the compressor hot gas defrost and the activation of the defrost relays on the main and auxiliary evaporators The delay d3 is useful in the hot gas defrost to ensure a sufficient quantity of hot gas for the defrost before the activation of the cycle reversing valve in very special applications see paragraph Description of software functions Default d3 0 minutes d4 Defrost when the instrument is switched on Activates a defrost when the instrument is switched on Warning this request has priority over the activation of the compressor and the continuous cycle The possible values are d4 0 no defrost is performed when the instrument is switched on d4 1 a defrost is performed when the instrument is switched on Starting a defrost when the instru
79. g the dripping period see parameter dd e and for a further post dripping period see parameter Fd They can be forced ON during defrosts see parameter F3 The following values are allowed for this parameter FO 0 fans always ON FO 1 fans controlled according to the temperature difference between the virtual control probe and the evaporator temperature FO 2 fans controlled according to the evaporator temperature Warning remember that if a dripping period is set dd 0 the fans are stopped irrespective of the value of FO Default FO 0 gt fans always ON not managed by the fan controller F1 Fan start temperature parameter valid only if FO 1 or 2 When FO 1 parameter F1 indicates the minimum difference between room temperature and evaporator temperature for the fans to be started Therefore when e evaporator temperature lt virtual probe F1 A0 the fans are ON e evaporator temperature gt virtual probe F1 the fans are OFF When stopped the fans can start again when the difference between the two probes is equal to F1 A0 where AO is the fan controller differential see Figure 7 0 When FO 2 parameter F1 indicates the absolute temperature for starting the fans that is e evaporator temperature lt F1 A0 the fans are ON evaporator temperature gt F1 the fans are OFF Notes if there are two evaporators and therefore two evaporator probes control will be performed using the
80. gical output or relay 5 H6 Lock keypad Using the corresponding bits the functions relating to the individual buttons on the keypad can be disabled setting to 0 according to the following relationships Total value of parameter H6 to calculate the value to be assigned to parameter H6 simply sum the values assigned to the functions that should be disabled For 1133 Ir33power and ir33DIN see Table 7 q for powercompact powercompact small and mastercella see Table 7 q Important the functions disabled using parameter H6 are added to those disabled using parameter H2 Example disable the SET button AUX button 1133 Ir33power and Ir33DIN 1 4 5 value or parameter H6 powercompact powercompact small and mastercella 1 32 33 value of parameter H6 Bit Value Button Functions that can be enabled disabled 0 set Report printing procedure 2 v Defrost sa 2 4 5 Continuous cycle 3 8 Prg Mute 4 16 lt x Enter HACCP 5 32 aux Enable disable auxiliary output 1 6 64 1 On Off 7 128 zo Enable disable auxiliary output 2 Tab 7 0 Default H6 0 gt all buttons disabled ir33 030220441 rel 2 0 01 05 2006 H8 Select light or AUX output to activate with time band This parameter can be used to select the output that is activated or deactivate according to the time band see parameters tON and tOF H8 0 gt Time band linked to output configured as the light H8 1 gt
81. gt Digital input not active A6 Stop compressor from external alarm multifunction input The meaning of this parameter is similar to that of parameter c4 duty setting If an external alarm occurs immediate or delayed the compressor works for a time equal to the value set for parameter A6 in minutes while it remains OFF for a fixed period of 15 minutes A6 0 the compressor Is always OFF A6 100 the compressor Is always ON The fans continue to be managed according to the set parameters see category F If duty setting for the probe alarm parameter c4 is also active the controller uses the value of A6 Note if control with two compressor steps is selected with or without rotation H1 H5 12 or 13 the stop compressor acts on both steps Default A6 0 gt compressor OFF in the event of external alarms A7 Delay in detecting the external alarm multifunction input Establishes the delay in minutes in detecting an external alarm if selected as a delayed external alarm A4 A5 2 or the signal of the low pressure LP alarm Note if A7 0 in the event of delayed alarms from digital input A4 or A5 or A9 2 the controller does not act on the control outputs A8 Enable signals Ed1 and Ed2 The alarms Ed1 and Ed2 signal the end of the defrost due to maximum duration of the defrost time dP1 dP2 and can be disabled by setting A8 0 The warnings Ed1 and Ed2 if enabled are cancelled at the start of the following defros
82. he compressor is stopped The alarm can only be reset manually In the event of a condenser probe fault the alarm and pre alarm are activated Note if control with two compressor steps is selected with or without rotation H1 12 or 13 the high condenser temperature alarm acts on both steps Important 1 if no condenser probe is selected the condensing temperature alarm and pre alarm are disabled 2 the condenser fans can be controlled in on off mode for this function refer to parameters F4 and F5 Default Ac 70 0 degrees AE High condenser temperature alarm differential This is the differential used for activation of the high condenser temperature alarm and control of the condenser fans Default AE 5 0 Acd Condenser high temperature alarm delay The parameter Acd can be used to set a delay on the activation of the condenser high temperature alarm When the threshold Ac AE is exceeded the alarm delay timer is started If when the delay time Acd has elapsed the temperature is still above the threshold the alarm CHt is activated Otherwise if the temperature returns below the threshold the timer is reset and the alarm CHt is not displayed Default Acd 0 gt 0 minutes immediate high condenser temperature alarm AF Light sensor OFF time Used to manage the light sensor connected to a digital input as AF 0 sensor in the door stop AF gt 0 sensor inside the cold room or cabinet When AF 0 the inside light is switc
83. he compressor to operate according to the values assigned to the parameter A6 stop compressor from external alarm on the other hand the dA signal is displayed the icon flashes the buzzer and the alarm relay if selected are activated the delayed external alarm is thus signal only both the Immediate and delayed external alarm have automatic reset if more than one digital input is configured as the delayed alarm the alarm will be generated when at least one of the inputs is open if control with two compressor steps is selected with or without rotation H1 H5 12 or 13 the delayed external alarm acts on both steps A4 3 The meaning varies according to the model used Version ir33M probe selection This is used to exploit the digital input in order to show on the display the probe selected by parameter tl or the first enabled probe see parameters A2 A3 A4 A5 In practice if the contact is open the probe selected by parameter tl is shown whereas if the contact is closed the first enabled probe is shown For all other models Defrost enabling An external contact can be connected to the multifunction input to enable or inhibit the defrost e Contact open the defrost is inhibited Contact closed the defrost is enabled e Contact closed without request from the controller the defrost is not performed Contact closed and defrost in progress when the digital input is opened the defrost is immediately
84. he condenser temperature falls to lt Ac the pre alarm ends and the signal cht is cancelled If the condenser temperature is gt Ac the alarm delay timer is started this can be set using the parameter Acd If at the end of delay Acd the temperature is still above the threshold Ac the alarm CHt is activated the message CHt is shown on the display and the compressor is stopped without observing the safety times c1 c2 c3 Alarm CHt is manual reset only If on the other hand the temperature returns below the threshold the timer is reset and the pre alarm status or normal operation resumes The auxiliary relays can be set as condenser fan outputs H1 which are activated if the condenser temperature is gt F4 F5 and are deactivated if the condenser temperature is lt F4 If two condenser probes are selected the high condenser temperature pre alarm and alarm management algorithms are performed with reference to the probe with the higher value The alarm status on one of the two condenser probes activates alarm management ignoring the value of the other probe In the event of a condenser probe error the pre alarm cht and the alarm CHt are generated automatically In the above situation any auxiliary outputs configured accordingly are activated
85. he procedure address assignment pro PRG MUTE alarms mutes the audible alarm buzzer more than 5 seconds resets any alarms with manual reset for restoring the default cedure and deactivates the alarm relay parameters A If pressed for more than 5 seconds activa UP CC SET if pressed together for more than 5 seconds starts E tes deactivates the continuous cycle the report printing procedure if the interface printer is connected to the controller UP CC PRG MUTE if pressed together for more UP CC than 5 seconds resets the any alarms with manual reset If pressed for more than 1 second activa tes deactivates auxiliary output 2 If pressed for more than 1 second activa aux da tes deactivates auxiliary output 1 AUX v If pressed for more than 5 seconds activa Ne tes deactivates a manual defrost b DOWN DEF set SET If pressed for more than 1 second displays and or sets the set point SET PRG MUTE if pressed for more than 5 seconds accesses the menu for setting the type C parameters configuration or downloading the parameters SET UP CC if pressed together for more than 5 seconds starts the report printing procedure if the interface printer is connected to the controller Procedure for displaying and deleting the HACCP alarms 1 Press the HACCP button powercompact powercompact small and MasterCella or alternatively W SET for ir33 ir33power and ir33DIN for more than one second the di
86. he technical 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 e 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
87. hed on when the sensor detects light and is switched off when the sensor detects darkness The light is switched off for a minimum of 3 seconds so as to avoid close successive impulses of the light relay Note the sensor must be positioned so as to detect darkness when the door is closed When AF gt 0 the inside light is switched on when the sensor detects light After a time in seconds equal to AF the light is switched off for 5 seconds to check if the door has been closed If darkness is detected the inside light remains OFF but if light is detected the inside light is switched back on after a minimum time of 3 seconds and the same cycle starts again Default AF 0 ALF Antifreeze alarm threshold Defines the temperature value below which the antifreeze alarm is detected with the message AFr The function Is active if a probe has been set as an antifreeze probe A2 A3 or A4 4 and is delayed by the time set for parameter AdF The antifreeze alarm stops the compressor and activates the alarm relay if H1 0 1 and has manual reset The antifreeze alarm stops the compressor stops cooling operation and activates the alarm relay if ALSO 1 01 H50 1 The alarm is reset manually or from the supervisor Note if control with two compressor steps is selected with or without rotation H1 12 or 13 the antifreeze alarm acts on both steps Default ALF 5 0 AdF Antifreeze alarm delay Sets the delay for detecting the antif
88. hes the set point value used by the controller Default St 0 0 rd Control delta Establishes the value of the differential or hysteresis used for temperature control Low values guarantee an ambient temperature that deviates only slightly from the set point but involves frequent starts and stops of the main actuator normally the compressor In any case the compressor can be protected by suitably setting the parameters that limit the number of activations hour and the minimum OFF time see the C parameters Note if control with two compressor steps has been selected H1 12 13 the differential rd is divided between the two steps Default rd 2 Sonda virtuale z6 ir33 030220441 rel 2 0 01 05 2006 rn Dead band Establishes the value of the dead band when the auxiliary output is selected as heating in control with dead band mode The differential is in the centre of the dead band Note e the step associated with the aux1 output is only associated with the protection timer cO while the step associated with the compressor in both direct and reverse operation is associated with the timers cO cl c2 c3 As a result the steps may be active at the same time due to the protectors associated with the compressor step minimum on time as well as the unit defrost status e if the curtain switch function is enabled A4 7 the controller modifies the set point when the contact closes adding or s
89. high temperature and LO for the low temperature alarm The following conditions generate the temperature alarms e high temperature alarm the temperature measured by the virtual control probe is above the threshold set for parameter AH e low temperature alarm the temperature measured by the virtual control probe is below the threshold set for parameter AL Default Ad 120 gt 120 minute delay for the temperature alarms A4 Multifunction digital input configuration In the ir33 series this parameter and the model of controller used define the meaning of the multifunction digital input The possibilities are described below A4 0 Input not active the multifunction digital input is not used and is the factory specified configuration for all versions A4 1 Immediate external alarm the digital input can be connected to an external alarm that requires immediate activation for example high pressure alarm or compressor thermal overload Specifically the alarm is detected when the contact opens normal operation with contact closed The activation of the alarm e shows the message on the display IA activates the buzzer if enabled activates the alarm relay if selected involves the following actions on the actuators compressor operates depending on the values assigned to parameter A6 stop compressor from external alarm fans continue to operate according to the fan parameters F Vhen stopping the compressor the minimum
90. ia described above maximum 3 successive defrosts skipped If 3 consecutive defrosts are skipped and the actual defrosting time is still less than dn the cycle is terminated and the controller will skip one more defrost As soon as the defrost time exceeds dn of the time dP the next defrost will be performed and the function will start again The algorithm counts the defrosts to be skipped if defrost finishes in less time than dn1 the counter of the defrost operations to be skipped is increased by 1 The current value of the counter indicates the defrost operations to be skipped if the defrost ends normally the next defrost is performed when the counter reaches the value 3 three defrosts are skipped and then the counter Is reset to 1 e when the instrument is switched on the defrost is performed the first 7 times without increasing the counter after which the counter can be updated from the eighth defrost on To the side is a graphical description of the function This function should be used with the programming of the defrosts equally distributed over the day e g cyclical defrosts parameter dl This prevents skipping defrosts that would be the last before a long period programmed without defrosts for example when the clock is used to program the defrosting of the utility at night only 6 7 4 Defrost according to the duration of the previous defrost with skip defrost and variable dl combination of 1 and 2
91. ibration of probe 2 MSYF FE C 20 20 0 0 c3 Calibration of probe 3 MSYF CEE C 20 20 0 0 c4 Calibration of probe 4 MSYF OPE C 20 20 0 0 5 Calibration of probe 5 MSYF QPF C 20 20 0 0 Code Parameter MSYF UOM Type Min Max Def St Temperature set point MSYF C F E IR r 0 0 rd Control delta SYF C F F 20 0 1 2 0 rn Dead band WE GPF C 60 0 0 4 0 rr Reverse differential for control with dead band SNE C 20 0 1 2 0 r Minimum set point allowed MSYF C F Cn 50 50 r2 Maximum set point allowed MSYF 1 Q F C 200 r 60 r3 Operating mode SYF flag C 2 0 0 r4 Automatic night time set point variation MSYF C F C 20 20 3 0 r5 Enable temperature monitoring MSYF flag C 1 0 0 rt Temperature monitoring interval MSYF hours F 999 0 rH Maximum temperature read MSYF C F F rL Minimum temperature read MSYF__ C F F Code Parameter MSYF UOM Type Min Max Def cO Compressor fan and AUX start delay on SYF min C 0 15 0 power up in dead zone cl Minimum time between successive starts SYF min C 0 15 0 Q Minimum compressor OFF time SYF min C 0 15 0 3 Minimum compressor ON time SYF min C 0 15 0 c4 Duty setting SYF min C 0 100 0 CC Continuous cycle duration SYF hours E 0 15 0 c6 Alarm bypass after continuous cycle SYF hours C 0 15 2 c7 Maximum pump down time SYF S C 0 900 0 c8 Comp start delay after open PD valve SYF S C 0 60 5 c9 Enable autostart function in PD SYF flag C 0 1 0
92. in all types of applications Code TRA12VDE00 Transformer 3VA 240 12VAC VDE 153 M 5 6 RS485 serial board DIN The IROPZSER30 board is used to connect the ir33DIN via the RS485 network serial to the PlantVisor su pervisory system using the removable terminal supplied as well as direct connection of the Instrument to the repeater display using a PSTCON B00 cable 5 7 RS485 serial board MasterCella The IROPZSEM 10 30 boards are used to connect the mastercella via the RS485 network serial to the PlantVisor supervisory system The IROPZSEM30 board also allows the repeater display to be connected directly to mastercella using a PSTCON B00 cable Codes e IROPZSEM10 RS485 serial board e IROPZSEM30 RS485 serial board repeater display connection 5 8 Door interlock MasterCella Mastercella can be installed with a door interlock disconnecting switch rated to 32 A for the complete on off management of all the units this device allows the system to be locked in the Off position so that service operations can be performed in complete safety Codes 0402512CEL 32 A disconnecting switch 0402515CEL shaft H 85mm 0402517CEL switch with yellow red indicator 1133 030220441 rel 2 0 01 05 2006 Fig 5 q 5 9 Terminals MasterCella This accessory is used to group together the neutral live and earth connections on a single board instal led inside the mastercella There are two mo
93. it PSOPZPRGOO can set up to seven different configurations of parameters inside the instrument The keys must be connected to the connector 4 pin AMP fitted on the controllers The keys IROPZKEY00 AO can only be used with the controllers based on the IR33 platform All operations must be performed with the instrument off unless otherwise indicated on the instruction sheet for the specific instrument Important UPLOAD PJOPZKEYOO to be used ONLY for PJ controllers PSOPZKEY to be used ONLY for powercompact ir33 Mastercella power split MGE controllers and I O modules Fig 5 a Three functions are available and are selected by using the two supplied dipswitches these can be accessed by removing the battery cover load the parameters for a controller onto the key UPLOAD Fig 5 0 copy from the key to a controller DOWNLOAD Fig 5 d extended copy from the key to a controller EXTENDED DOWNLOAD Fig 5 e Warning the parameters can only be copied between instruments with the same code The UPLOAD DOWNLOAD operation can however always be performed 5 1 1 Copying and downloading the parameters The following operations are used for the UPLOAD and or DOWNLOAD or EXTENDED DOWNLOAD functions simply by changing the settings of the dipswitches to change the function I open the rear cover on the key and position the 2 dipswitches according to the desired operation 2 close the rear cover on the key and insert the key in
94. ities deriving from the installation use or impossibility to use the product even if CAREL or its subsidiaries are warned of the possibility of such damage Y Disposing of the parts of the controller The controller is made up of metal and plastic parts and a lithium battery All these parts must be disposed of separately in compliance with the local standards in force on waste disposal Content 1 INTRODUCTION 7 EG A cep torent EEE EES 7 0695 AEE E N E E E EE 9 2 USER INTERFACE 9 2 2 ir33 ir33 power and ir33DIN KOYPAC ssussssssecssccesascnssnssessscecessssscessnnssesssscearssecensnsnsssssesssateessuasaesssse 10 2 3 powercompact powercompact small and MasterCella keypad uwcccaoom 11 3 INSTALLATION 12 4 PROGRAMMING THE INSTRUMENTS 13 O VIE GEAR O RR desierto ista 13 4 2 Storing the new values assigned to the parameters iiieeeeeeee 13 4 3 Classification Of the PalaMEeLerS ccssiririrrinnrii irritante 13 4 5 Setting the set POI aaacicccssssissesssessessessecsasescesssussasasosssseenssuusanasasessssencepsuasssssseccanntaceansnussssdasssseeesesbasessess 14 4 6 Alarms Witi Mafia TES CY iure ti 14 4 7 Procedure for setting the default parameter ValUCS cccssssssssssssssssssccssssssssssssssesessensssssssseeesee 14 4 8 Semi automatic serial address assignment procedure erriirrieeieeee 14 5 Parameter copying Key r
95. ivation of the AUX and LIGHT outputs real time clock for the automatic variation of the set point 6 2 Testing the display and keypad on start up When the controller is switched on a special procedure tests the display and the keypad Phase _ Display Keypad Note First Display completely OFF for 2 Press prg for 2 seconds to set the seconds default values Second Display completely ON for 2 No effect seconds Third Three segments on Pressing each button lights up a In this phase appears specific segment to Indicate the presence of the RTC Fourth Normal operation Normal operation Tab 6 b 1133 030220441 rel 2 0 01 05 2006 19 6 3 Switching the controller ON and OFF The unit can be switched ON OFF from a number of sources supervisor and digital input In this opera ting mode the display will be show the temperature selected for parameter tl alternating with the OFF message The digital input can be used to switch the controller on off setting parameter A4 A5 to 6 Switching on off from digital input has priority over the same function from the supervisor Origin Priority Note Digital input Priority 1 Disable On Off from keypad and supervisor Keypad Priority 2 Supervisor Priority 3 Tab 6 c Important if there is more than one digital input selected as the On Off function A4 and A5 6 the ON status will be activated when all the digital inputs are close
96. m deviation allowed AH remains fixed Warnings e the high temperature alarm has automatic reset this means that if the temperature returns above be low the minimum value envisaged the alarm signal is cancelled automatically e in the event of a control probe alarm the high temperature alarm is reset and monitoring reinitialised Default AH 0 gt high temperature alarm disabled Ad Temperature alarm delay Indicates after how many minutes the temperature alarm is signalled when the temperature threshold is exceeded Warnings e Setting a delay for signalling the temperature alarm may help eliminate false alarms due to interference on the probe signal or brief situations for example the door to the cold room opened for a short period no temperature alarms are generated during the defrost and continuous cycle procedures the temperature alarm is delayed by the time d8 after the defrost and by the time c6 after the continuous cycle At the end of these two times the temperature alarm if detected is signalled without waiting for the time set for Ad If d8 and c6 are set to zero the temperature alarm is signalled after the time Ad as already indicated by the default value for parameters AL and AH the instruments are programmed in the factory with the relevant thresholds and the high and low temperature alarms are disabled The alarms when enabled activate the buzzer if enabled and show a code on the display HI for the
97. manual 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 liabil
98. maximum value read by the two probes to ensure that the fans are started when both evaporators reach the set temperature e in the event of errors on the control probes the fans are always on Default F1 5 gt 1f FO 1 or 2 the fans remain ON while the evaporator is 5 degrees colder than the room temperature F2 Fans OFF with compressor OFF according to the value of FO Used to decide whether the fans must operate according to the rules set for parameter FO with the exception of the defrost cycle parameters F3 dd and Fd are displayed or when the compressor is active F2 0 gt the fans are always ON F0 0 or when requested by the fan controller FO 1 2 even when the compressor is OFF e F2 1 gt the fans are OFF when the compressor Is OFF Note if control with two compressor steps is selected with or without rotation H1 12 or 13 and parameter F2 1 the fans are off when both the compressors are off Default F2 1 gt fans OFF with compressor OFF F3 Fans in defrost This is used to decide whether the fans should operate or not during the defrosts F3 0 gt the fans operate during defrosts F3 1 gt the fans do not operate during defrosts Remember that during the dripping time and post dripping time if specified the fans are always OFF Default F3 1 gt evaporator fans OFF during the defrost Fd Fans OFF for post dripping The fans after defrosting can be stopped for a further period beyond dd
99. ment is switched on may be useful in special situations Example frequent power drops occur in the system which cause the internal clock to be reset This clock calculates the interval between two defrosting operations restarting from zero If the frequency of the power failure were in an extreme case greater than the defrost frequency e g a power failure every 8 hours against a defrost every 10 hours the controller would never perform a defrost In a situation of this type it is preferable to enable defrost on start up above all if the defrost is controlled by temperatu re probe on the evaporator therefore avoiding unnecessary defrosts or at least reducing the running times In the case of systems with a large number of units if selecting defrosts at start up after a power failure all the units will start defrosting thus causing a voltage overload To overcome this the parameter d5 can be used It adds a delay before the defrost and this delay must obviously be different for each unit Default d4 0 the instrument does not perform a defrost on start up Available on all models except for IR33M d5 Defrost delay when the instrument is switched on or from multifunction input The time that must elapse between start up of the controller and the start of the defrost e if the digital input is used to enable the defrost see parameter A4 3 or to start a defrost from external contact see parameter A4 4 the parameter d5 refers to the
100. meter 9 press Aor to display all the sub parameters 10 press SET to display the associated value 11 increase or decrease the value using the AorW button respectively 12 press SET to temporarily save the new value and return to the display of the sub parameter code 13 press prg to return to the display of the parent parameter 4 2 Storing the new values assigned to the parameters To definitively store the new values of the modified parameters press prg for more than 5 seconds thus exiting the parameter setting procedure All the modifications made to the parameters temporarily stored in the RAM can be cancelled and normal operation resumed by not pressing any button for 60 seconds thus allowing the parameter setting session to expire due to timeout Important if the programming session ends by timeout the clock parameters will not be reset as these parameters are saved immediately when entered If the instrument is switched off before pressing prg all the modifications made to the parameters and temporarily saved will be lost 4 3 Classification of the parameters The parameters as well as being divided by TYPE are also grouped into logical CATEGORIES identified by the initial letters or symbols The following table lists the categories and the corresponding letters Parameters Category Text Icon Temperature probe management parameters Pro UN Temperature control parameters
101. modified even those without shortcut buttons Directly display modify the most commonly used parameters Some parameters relating to Temperature Defrost Alarms Fans HACCP are directly accessible using specific buttons 1133 030220441 rel 2 0 01 05 2006 5 3 RS485 serial interface The RS485 serial card option IROPZ48500 shown in Figure 5 1 allows the 1r33 instrument to be con nected to the RS485 serial network for supervision In addition the serial interface option IROPZ48550 is available with automatic recognition of the polarity and For further details refer to the corresponding instruction sheet 5 4 Programming kit This accessory interfaces the IROPZKEYOO programming key with any PC this useful tool can be used to program the key using the standard instrument parameters and save the different configurations to files that can be recalled during final programming For the new generation instruments such as powercompact and ir33 the user can change the password hide the parameters change the level of visibility with password protection or direct access and most importantly assign the output relays according to the configuration of the utilities 5 5 Transformers ir33 power DIN The transformers are used to convert mains voltage to the power supply voltage specified for the ir33 and ir33DIN series controllers Their compactness and sound design winding immersed in plastic mean they can be used
102. mote control without the risk of interference The instrument enabled for programming from the remote control will display the reading and the message rCt This status is called Level 0 Vhen having entered programming mode pressing prg for 5 seconds exits the programming of the remote control saving the modifications vice versa press EXIT to exit the programming of the remote control without saving the modifications Remote simulation of the instrument keypad The highlighted part is used to simulate the instrument keypad from the remote control In Level 0 display the reading and message rCt the following functions are active Button Immediate function def start and stop defrosting aux activation and deactivation of auxiliary relay 1 light activation and deactivation of auxiliary relay 2 ON OFF instrument ON OFF PRG mute mute the buzzer if ON and deactivate the alarm relay Tab 5 c In this level the set and PRG mute buttons are also active used to activate the set point Level 1 and the configuration parameters Level 2 Button Immediate function Delayed function PRG mute modify the configuration parameters pressing and holding for 5s saves the modified parameters set modify the set point Tab 5 d In Levels 1 and Level 2 the PRG mute SET UP and DOWN buttons repeat the corresponding functions on the instrument keypad In this way all the instrument parameters can be displayed and
103. mperature measured by the probes The temperature value is corrected by the offset before checking if the reading is out of range Example to decrease the temperature measured by probe 1 by 2 3 degrees set C1 2 3 The calibra tion or offset can be set from 20 to 20 Warning if the probe is disabled the display shows ___ If the probe is faulty the display shows the corresponding error code When displaying the parameter pressing SET shows the value of the corresponding probe already corrected with the offset while pressing SET a second time displays the abbreviated code Default C1 C2 C3 C4 C5 0 no offset 7 2 Temperature control parameters es Code Parameter MSYF UOM Type Min Max Def St Temperature set point MSYF Cre E 2 jr 0 0 DIRECT Freddo rd Control delta SYF FIE 20 01 20 rd rn Dead band SYF GF C 60 0 0 40 rr Reverse differential for control with dead band SYF FFE C 120 01 20 ON r Minimum set point allowed MSYF QF C 2 50 50 ina r2 Maximum set point allowed MSYE IOPE C 1200 iri 60 r3 Operating mode SYF flag C 2 0 0 OFF r4 Automatic night time set point variation MSYF GF C 20 20 130 EEE r5 Enable temperature monitoring MSYF flag C I 0 0 rt Temperature monitoring interval MSYF hours F 999 0 Fig 7 a rH Maximum temperature read MSYE QSF IF rL Minimum temperature read MSYF C F F Tab 7 c pire St set point Establis
104. mpressor step output with rotation Normal operation Normal operation Normal operation Normal operation Normal operation Normal operation Normal operation Normal operation Normal operation Normal operation Door switch with compressor fan off and light management Normal operation Door switch with compressor off and light management Normal operation Curtain switch with set point variation and light management Normal operation Light sensor and light management Normal operation Auxiliary output activation switch Normal operation Door switch with compressor fan off no light management Normal operation Door switch with compressor off no light management Normal operation Light activation from keypad or supervisor Normal operation Auxiliary activation from keypad or supervisor Normal operation Alarms See table of alarms and signals Virtual control probe alarm Function restarted Product probe alarm Normal operation Defrost probe alarm Normal operation Condenser probe alarm Normal operation Antifreeze probe alarm Normal operation Tab 6 0 6 14 Antifreeze alarm The antifreeze alarm is only active if a probe has been set as the antifreeze probe Ax 4 x 2 5 ALF defines the temperature value below which the antifreeze alarm AFr is activated delayed by the time set for parameter AdF The alarm is reset manually or from the supervisor
105. mpressor steps have been selected H1 12 13 the parameter c11 represents the delay for the activation of the second step from the first Important select the auxiliary output as a delayed compressor or second compressor step using parameter H1 Default c11 4 gt 4 second delay 1133 030220441 rel 2 0 01 05 2006 39 7 4 Defrost management parameters SA Code Parameter MSYF UOM Type Min Max Def do Type of defrost SYF flag C 0 4 0 dl Interval between defrosts SYF hours F 0 250 8 dt1 End defrost temperature evaporator NE CPF F 50 200 40 dt2 End defrost temperature aux evap SYF C F F 50 200 40 dP1 Maximum defrost duration evaporator SYF min F j 250 30 dP2 Maximum defrost duration aux evap SYF min F 250 30 d3 Defrost start delay SYF Min C 0 250 0 d4 Enable defrost on start up SYF flag C 0 I 0 d5 Defrost delay on start u SYF min C 0 250 0 d6 Display on hold during defrost SYF C 0 2 1 dd Dripping time after defrost SYF min F 0 15 2 d8 Alarm bypass after defrost SYF hours F 0 15 d8d Alarm bypass after door open SYF hours C 0 250 0 min d9 Defrost priority over compressor protectors SYF flag C 0 0 d 1 Display of defrost probe 1 MSYF C F F d 2 Display of defrost probe 2 MSYF C F F dC Time base for defrost SYF flag C 0 1 0 d10 Compressor running time
106. n proceed as follows e set r5 1 select rt e press SET to display for how many hours the minimum and maximum temperature have been recor ded if the function has just been enabled rt 0 to start recording the temperatures again press q for more than 5 seconds when displaying the hours the message rES indicates that the value has been reset The instrument resets the number of hours and restarts the monitoring process to display the maximum temperature measured by the probe read the value associated with rH while to display the minimum temperature measured by the probe read the value associated with rL Important after the maximum time of 999 hours the monitoring of the minimum and maximum temperature continues while the time value remains fixed at 999 if the instrument Is not connected to a UPS unit a temporary power failure will reset the values of rt rL and rH Therefore when power returns monitoring resumes automatically from rt 0 Default r5 0 1133 030220441 rel 2 0 01 05 2006 57 REVERSE Caldo ON attuatore OFF Reverse St Sonda virtuale rd 2 n rd 2 Fig 7 c accensione strumento power ON richiesta di intervento I insertion request Os compressore on OFF compressors CO Fig 7 d richiesta inserimento 777 TTTTTTTT A r I insertion request _ _ y es o OFF compressore compressors Fig 7 e richiesta inserimento 4 Pea
107. n summary dll varies from 8 hours dl by setting dH 0 minimum value to 10 hours and 19 minutes by setting dH 100 maximum value 1133 030220441 rel 2 0 01 05 2006 6 7 3 Defrost at intervals calculated according to the duration of the previous defrost Skip defrost To enable the controller for this operating mode set the parameter d12 2 In this case according to the duration of the last defrost operation the controller establishes whether the next defrost is skipped or not The following parameters are associated with this function e d12 enable the function dl interval between defrosts e dn nominal duration of the defrost in proportion to the defrost timeout value expressed as a e dP1 and dP2 maximum defrost duration for evaporator 1 and 2 When setting these parameters correctly the algorithm calculates using the following formulae dn 100 dn 100 dnl dP1 and dn2 dP2 the nominal defrost times dn1 and dn2 in the case of the second evaporator obtained as percentages dn of dP1 and dP2 This function is based on a very simple but very effective principle If the defrost lasts less than or equal to the time dn1 or dn2 calculated with the formulae shown above the next defrost due after the time dl will be skipped When the next defrost Is performed the check is repeated and if the outcome is the same then the following two due defrosts are skipped and so on according to the criter
108. n the unit is OFF a defrost is performed when the unit is started If an RTC or manual defrost is run from the keypad or the supervisor the timer linked to dl is not reset at the start of the defrost Consequently at the end of defrost the dl timer may expire and another defrost may be performed If a defrost is run from the digital input with the compressor running time algorithm or from the supervisor in Slave controllers the timer dl is reset when the defrost request is generated In this way the defrost interval is a timeout for the generation of the defrost requests used for example when the external timer is not working correctly If defrost on start up d4 has been selected and a defrost on start up delay d5 has been set the timer dl must be set to the end of the defrost delay on start up For units programmed in the same way and with the same value of dl and different values of d5 this enables the defrosts at start up to be distributed through time and the time staggering of the defrosts to be maintained for the subsequent events too If control with 2 compressor steps is selected with or without rotation H1 12 or 13 the hot gas defrost requires the activation of the 2 steps while the heater defrost deactivates the steps Function active Function with defrost Normal direct or reverse cycle control On hold Remote off from supervisor or keypad When off the defrost is terminated Def
109. ng to the value assigned to the variable A4 Value of A4 Function Function active LED on 0 input not active 1 immediate external alarm open alarm open 2 delayed external alarm open alarm open 3 for model M select probes open probe selected by parameter tl closed first probe enabled E other models enable defrost closed enabled 4 start defrost closing defrost request 5 door switch with compressor and fans OFF open door open 6 remote ON OFF open instrument off 7 curtain switch closed curtain closed 8 low pressure switch open low pressure 9 door switch with fans OFF only open door open 10 direct reverse open direct 11 light sensor above the threshold off 12 activation of AUX output open deactivation B door switch with compressor and fans off light not managed open door open 14 door switch with fans only off light not managed open door open Tab 7 h Note e if more than one digital input is configured in the same way the activation of the associated function will be enabled if at least one of these Is open for control with two compressor steps with or without rotation H1 12 or 13 the function associated with the digital inputs is activated on both A5 Configuration of the second multifunction digital input For this parameter the same description relating to parameter A4 Is valid obviously referring to the second digital input Default A5 0
110. nts can be connected to the same insulating transformer nevertheless you are recommended to use a separate insulating transformer for each instrument Warnings Avoid installing the instrument in environments with the following characteristics relative humidity over 90 non condensing e heavy vibrations or knocks exposure to continuous jets of water e exposure to aggressive and polluting atmospheric agents e g sulphur and ammonia gases saline mist smoke which may cause corrosion and or oxidation e high magnetic and or radio frequency interference e g near transmitting antennas e exposure to direct sunlight and atmospheric agents in general The following warnings must be observed when connecting the controllers Incorrect connection of the power supply may seriously damage the system use cable ends that are suitable for the terminals Loosen every screw and fit the cable end next tighten the screws and gently pull the cables to check their tightness When tightening the screws do not use automatic screwdrivers or adjust the screws to a tightening torque less than 50 Ncm e separate as much as possible by at least 3 cm the probe signal and digital input cables from inductive loads and power cables to avoid any electromagnetic disturbance Never lay power cables and probe cables in the same cable conduits including those for the electrical panels Do not install the probe cables in the immediate vicinity of p
111. of HA Is reinitialised b delete the HACCP alarms and the alarms saved HAn HA HA1 HA2 HFn HF HF1 HF2 by pressing W SET and A for more than 5 seconds the message rES indicates that the alarms have been deleted the HACCP LED stops flashing the HA and or HF signal is reset the HAn HA HA1 HA2 HFn HF HF1 HF2 alarms saved are reset and the monitoring of HA Is reinitialised c Normal operation can be resumed at any time by pressing the button for 3 seconds or waiting for the expiry of the session due to timeout 60 seconds without pressing any button 10 1133 030220441 rel 2 0 01 05 2006 2 3 powercompact powercompact small and MasterCella keypad MasterCella powercompact powercompact small Fig 2 C Icon Normal operation Start up Automatic address assignment request pressing the button alone pressing together with other buttons Enters the menu to display and delete of Haccp the HACCP alarms HACCP If pressed for more than 5 seconds 1 switches the unit on off ON OFF X If pressed for more than 5 seconds PRG MUTE SET if pressed for more than 5 seconds accesses If pressed for more than If pressed for more than 1 LS accesses the menu for setting the type the menu for setting the type C parameters configuration or 5 seconds at start up second starts the automatic prg F parameters frequent In the event of downloading the parameters PRG MUTE UP CC if pressed for activates t
112. om the instrument requires a specific accessory Default HPr 0 gt Report printing disabled Hdn Number of sets of default parameters available The controller can feature one or more sets of default parameters Set O Is standard and cannot be custo mised The other sets can be customised by the user with the programming key kit PSOPZPGROO Set Customisable Note 0 NO The levels of visibility are not modified Sets the values of the visible parameters only 1 VES 2 3 4 The levels of visibility and the values of all the operating and unit parameters are set 5 6 Tab 7 r Notes I The set of customisable default parameters can only be used on the controller if there is suitable hardware expanded EEPROM memory 2 If when loading a set of customised default parameters there is an EF EEPROM error memory error on the controller the previous parameters can be restored by switching the instrument off and on again 3 If there is an EF EEPROM error to maintain the loaded parameters enter parameter configuration mode check the values then save them to the EEPROM using the special procedure At then end of the operation the EEPROM error signal will be cancelled 4 If there is a recurring EE or EF EEPROM error when loading a set of customised default parameters the EEPROM on the instrument should be corrected using the programming hardware key 5 After loading a set of customised default parameter
113. on and light management Normal operation Light sensor and light management Normal operation Auxiliary output activation switch Normal operation Door switch with compressor fan off no light management Normal operation Door switch with compressor off no light management Normal operation Light activation from keypad or supervisor Normal operation Auxiliary activation from keypad or supervisor Normal operation Alarms See table of alarms and signals Virtual control probe alarm Normal operation Product probe alarm Normal operation Defrost probe alarm Normal operation Condenser probe alarm Condenser output on condenser pre alarm and alarm generated Antifreeze probe alarm Normal operation Tab 6 1 28 1133 030220441 rel 2 0 01 05 2006 6 11 Control with dead band Control with dead band can be activated by using the aux1 output for the reverse step H1 11 The set point St is in the centre of the dead band The parameter rd represents the control differential associated with the compressor rn the size of the dead band rr the differential for reverse control associated with the aux1 output The diagram in Figure 6 d shows control with dead band in the case of direct operating mode r3 0 and 1 The dead band Is mainly used in direct operating mode The diagram in Figure 6 e shows control with dead band in the case of reverse operating mode r3 2 The step associated with the aux1 output remains in reverse The
114. on the value set for the digital input configuration parameters parameters A4 and A5 for 1133 Ir33power powercompact small parameter A9 for ir33DIN powercompact MasterCella These inputs can be used to enable disable the defrost to manage serious alarms that require the immediate shut down of the unit e g high pressure or delayed shut down of the unit e g low pressure or alternatively can be configured to read NTC probes with parameters 3 and 4 for ir33 ir33power powercompact small parameter A5 for ir33DIN powercompact MasterCella Multifunction output According to the model the ir33 family can be provided with an additional multi function output for remote control of the alarm signal for controlling additional units with ON OFF activation Real time clock The wide range also includes models fitted with built in real time clock Pump down This function ensures the compressor is stopped only when the evaporator is discharged see the paragraph Pump down and low pressure Condenser One of the new characteristics offered by these controllers is the possibility to manage via an NTC probe input the condensing temperature for both the alarms and control functions using the auxiliary output configured by parameters H1 and H5 Double evaporator Two independent evaporators can be managed connected to the same circuit The end of defrost temperatures are independent and can be set by parameters dt1 dt2
115. ond compressor step for the aux output H1 12 13 is associated with the timers c0 c1 c2 c3 c3 Minimum compressor ON time Sets the minimum running time for the compressor The compressor is not stopped until it has been ON for at least the minimum time selected c3 Note the second compressor step for the aux1 output H1 12 13 is associated with the timers c0 c1 c2 c3 Default c3 0 gt no minimum running time Is set c4 Duty setting If the virtual control probe fault alarm occurs see parameter 4 this parameter is used to ensure the operation of the compressor until the fault is resolved Default c4 0 gt compressor always Off in the event of a virtual control probe error Important In the event of errors on probe 2 the virtual probe corresponds to the room probe probe 1 and consequently the Duty Setting is not activated In practice as the compressor is no longer able to operate based according to the temperature due to the probe fault it is made to run cyclically with an operating time ON time equal to the value assigned to parameter c4 in minutes and a fixed OFF time of 15 minutes There are two values of c4 that cause special behaviour c4 0 in the event of faults involving the virtual control probe the compressor is always OFF c4 100 the compressor is always ON that is the 15 minute OFF time is always ignored Special situations if the virtual control
116. onds without pressing any button 1133 030220441 rel 2 0 01 05 2006 The sequence indicates that the last HA or HF alarm was activated on 22 July 2003 at 23 57 and lasted 99 hours 3 INSTALLATION To install the controller proceed as follows with reference to the connection diagrams shown in the manual on electrical specifications and connections 1 connect the probes and power supply the probes can be installed up to a maximum distance of 10 m from the controller using shielded cables with a minimum cross section of 1mm2 To improve the IMmunity to disturbance use probes with shielded cables connect only one end of the shield to the earth on the electrical panel 2 Program the instrument for more details see the chapter Programming the instruments 3 Connectthe actuators the actuators should only be connected after having programmed the controller In this connection carefully check the maximum capacities of the relays indicated in the technical specifications 4 Serial network connection all ir33 models are fitted with a serial connector for connection to the supervisory network via the serial interface code IROPZ48500 Take care when earthing the system in particular the secondary winding of the transformers that supply the instruments must not be earthed If connection to a transformer with earthed secondary winding is required an insulating transformer must be installed in between A series of instrume
117. or reverse cycle control On hold Remote off from supervisor or keypad When off the continuous cycle ends Defrost If necessary the request remains during the continuous cycle Continuous cycle Normal operation Temperature alarm monitoring Normal operation Evaporator fan control Normal operation Power on Normal operation Normally open or normally closed alarm output Normal operation Auxiliary output Normal operation Light output Normal operation Second evaporator output Normal operation Control output for pump down valve Normal operation Condenser fan control output Normal operation Second delayed compressor output Normal operation Auxiliary output with switch off Normal operation Light output with switch off Normal operation No function associated with the AUX output Normal operation Reverse output in control with dead band Normal operation Second compressor step output Activated Second compressor step output with rotation Activated Door switch with compressor fan off and light management Normal operation Door switch with compressor off and light management Normal operation Curtain switch with set point variation and light management Normal operation Light sensor and light management Normal operation Auxiliary output activation switch Normal operation Door switch with compressor fan off no light management Normal operation Door switch with compressor off no light management Normal operation Light activation from keypad or supervisor Normal ope
118. or time d10 e with an evaporator probe reading less than d11 If there are two evaporators two separate timers will be used for each evaporator and the count of each timer will be activated whenever the compressor is ON and the corresponding evaporation probe is below the threshold d11 The defrost will start when at least one of the two timers has expired that is when at least one of the evaporators has operated for the time d10 below the temperature threshold d11 6 7 2 Defrost at variable intervals dl To enable the controller for this operating mode set parameter d12 1 The control algorithm according to the duration of the previous defrost increases or decreases the defrost interval dl proportionally for the following defrosts The following parameters are associated with this function e dl interval between defrosts e d12 enable the function e dn nominal duration of the defrost in proportion to the set defrost timeout value expressed as a e dP1 and dP2 maximum defrost duration for evaporator 1 and 2 dH control proportional factor dn The algorithm uses the following formulae dnt ap1 and dn2 Gy dP2 100 to calculate the nominal defrost times dn1 and dn2 in the case of the second evaporator obtained as percentages dn of dP1 and dP2 Therefore if a defrost lasts less than the set time dn the algorithm proportionally lengthens depending on the value assigned to parameter dH the next def
119. otes 1 if the defrost probe is specified for the second evaporator but the second evaporator defrost output is not used the defrost on the second evaporator is performed using the output for the first eva porator In this case if defrost by temperature is selected the defrost relay is off if both evaporators probes have exceeded the corresponding thresholds dt1 dt2 2 if the defrost probe is not specified for the second evaporator but the second evaporator defrost output is used the defrost on the second evaporator is performed by time or considering the tempe rature of the first evaporator 6 6 5 End defrost The defrost ends by temperature dt1 dt2 or by time dP1 dP2 according to the setting of parameter do The defrost by temperature always ends after the set time dP1 dP2 If defrost by temperature is selected it may also end by timeout dP1 dP2 and in this case according to the setting of parameter A8 signal Ed1 or Ed2 is displayed In the case of an error in the probe selected for the defrost main or auxiliary evaporator it is always performed by time with the timeout signal if enabled Ed1 or Ed2 In the case of two evaporators the defrost ends when both the evaporators have reached the end defrost condition If one evaporator finishes the defrost by time or by temperature before the other the corresponding defrost relay is de energised while the compressor remains in the status requir
120. our bypass d8d Open door alarm delay This indicates the delay to signal that the door is open if the multifunction input is connected to the door switch see parameter A4 A5 or A9 If dgd 0 parameter d8d is disabled and the open door alarm delay returns to d8 Default d8d 0 disabled d9 Defrost priority over compressor protective devices Ignores the compressor protection times at the start of the defrost Compressor protection times e cl minimum time between 2 successive starts e 2 minimum OFF time c3 minimum operating time d9 0 the protection times are respected d9 1 the protection times are not respected Therefore defrost has higher priority and the compressor times are ignored In the hot gas defrost this is useful to avoid delaying the start of the defrost if the compressor has just stopped and there is a minimum time between two starts of the compressor Remember however that in this event the maximum number of compressor starts per hour may not necessarily be respected Warning if the defrost requires the activation of the compressor hot gas defrost and parameter d9 1 the compressor may risk being damaged due to an excessive number of close starts Default d9 0 gt the defrost respects the compressor times however by default these are set to zero d 1 Defrost probe 1 reading This parameter is used to display the value measured by defrost probe 1 on the instrum
121. ower devices contactors circuit breakers or the like Reduce the length of the sensor cables as much as possible and avoid spirals around power devices only use IP67 guaranteed probes as end defrost probes place the probes with the vertical bulb upwar ds so as to facilitate drainage of any condensate Remember that the thermistor temperature probes NTC have no polarity so the order of connection of the ends is not important Cleaning the instrument When cleaning the instrument do not use ethanol hydrocarbons petrol ammonia and by products Use neutral detergents and water 12 1133 030220441 rel 2 0 01 05 2006 4 PROGRAMMING THE INSTRUMENTS The operating parameters can be modified using the front keypad and are divided into two families frequent use parameters type F and configuration parameters type C Access to the configuration parameters is protected by a password that prevents unwanted modifications or access by unauthorised persons How to access type F parameters frequent use press PRG for more than 5 seconds if an alarm is active the buzzer is muted first of all the display shows the code of the first modifiable type F parameter How to access type C parameters configuration 1 Press prg and SET together for more than 5 seconds the display will show the number 00 representing the password prompt 2 press amp orW until displaying the number 22
122. pressor must continue to operate for the time d10 in order to generate a defrost request Default d11 1 gt 1 C d12 Advanced auto adapting defrosts This parameter is used to enable and disable the advanced defrost function as per the following table d12 Skip defrost Automatic variation of dl 0 Disabled Disabled 1 Disabled Enabled 2 Enabled Disabled 3 Enabled Enabled Tab 71 Default d12 0 gt Both the functions are disabled dn Nominal defrost duration This indicates the average duration of the defrost in normal operating conditions It is expressed as a percentage with reference to parameters dP1 and dP2 according to the following formulae dn 100 dn 1 a 100 dP2 dP1 and dn2 Example with dn 65 dP1 90 min and dP2 120 min Nominal defrost duration on main evaporator 59 min Nominal defrost duration on auxiliary evaporator 78 min Default dn 65 gt 65 of dP1 or dP2 dH Proportional factor in the variation of the defrost interval This parameter is used to increase or decrease the influence of the effective duration of the defrost in relation to the nominal duration in the algorithm that manages the automatic variation of the defrost interval By setting dH 0 the effective duration has no influence on the duration of the defrost interval Vice versa dH 100 achieves maximum efficiency Default dH 50 7 5 Alarm management parameters
123. probe error occurs while the compressor is OFF it remains OFF for 15 minu tes and Is then started respecting the times set for parameters cl and c2 and remains ON for a time equal to c4 Duty Setting This special operation is signalled by the LED that flashes during the compressor OFF period and remains on steady when the compressor Is operating The fans continue to operate according the set parameters see F parameters If the duty setting requires the immediate shut down of the compressor for a non specified time c4 0 this is done without observing the compressor protection times e if the virtual control probe error occurs while the compressor is ON it remains ON for the time c4 and then Is stopped without observing the minimum ON time if set for parameter c3 and remains OFF for 15 minutes the LED flashes in this phase After this cyclical operation starts with an operating time equal to the value of c4 Warning If the probe error disappears the unit returns to normal operation Note if control with two compressor steps is selected with or without rotation H1 12 or 13 the duty setting acts on both steps 1133 030220441 rel 2 0 01 05 2006 cc Continuous cycle duration This is the time in hours during which the compressor operates continuously to lower the temperature even below the set point With cc 0 gt the continuous cycle is disabled The controller exits the conti nuous cycle procedure after the
124. ps The following table defines the status of the second step output aux1 during control t Sonda virtuale Function active Second step output Normal direct or reverse cycle control Normal operation Remote off from supervisor or keypad Output deactivated Fig 6 1 Reverse zona neutra rr rn 2 rn gt lt rn 2 Temperatura Defrost Normal operation Continuous cycle Normal operation Temperature alarm monitoring Normal operation Evaporator fan control Normal operation Power on Normal operation Normally open or normally closed alarm output Normal operation Auxiliary output Normal operation Light output Normal operation Second evaporator output Normal operation Control output for pump down valve Normal operation Condenser fan control output Normal operation Second delayed compressor output Normal operation Auxiliary output with switch off Normal operation Light output with switch off Normal operation No function associated with the AUX output Normal operation Reverse output in control with dead band Normal operation Second compressor step output E Second compressor step output with rotation Door switch with compressor fan off and light management Output deactivated Door switch with compressor off and light management Normal operation Curtain s
125. r mode ensures maximum safety because the alarm is also activated in the event of power failures or disconnection of the cables H1 1 alarm output normally de energised the relay is energised when an alarm occurs H1 2 auxiliary output the actuator connected can be switched ON OFF using the AUX button Switching the actuator ON OFF is signalled by the icon on the display H1 3 light output the light on the unit can be switched on off when the door is opened if the door switch is enabled see parameter A4 In this case the light is switched off when the door Is closed unless previously switched off from the keypad Switching the light on off is signalled by the icon on the display H1 4 auxiliary evaporator defrost output a heater or reversing valve can be controlled to perform an electric heater defrost or hot gas defrost on the auxiliary evaporator H1 5 pump down valve output the activation and the deactivation of the pump down valve can be controlled H1 6 condenser fan output if the high condenser temperature alarm is activated see Ac the output can be used to control the condenser fans H1 7 delayed compressor output the output is activated a few seconds after the compressor starts the delay is established by parameter c11 deactivation of the compressor output corresponds to immediate deac tivation of the delayed compressor If this operating mode Is set it is also active during the compressor pump down and autos
126. r the best solution is to insulate all the contacts galvanically inserting an intermediate relay for each contact Setting a different value for d5 on each unit will avoid simultaneous defrosts Note if more than one digital input is configured to enable the defrost the defrost will be disabled when at least one of the inputs is closed A4 5 Door switch with compressor and fan stop Setting A4 5 manages the cold room door switch The behaviour of the door switch depends on whether the door is opened with the light OFF or light ON The need to differentiate the two operating modes is mainly designed for controlling display cases and cold rooms Case 1 door opened with light OFF If the door is opened with the light OFF e the compressor and evaporator fans are switched off to stop the fans only set parameter A4 9 e in the models fitted with an auxiliary relay programmed as the light output the light is switched on the reading displayed and the icon flash the temperature alarms are disabled If the door remains open for longer than time d8 the controller restarts normal operation compressor and fan ON if requested e light ON the auxiliary relay is selected as the light the buzzer and the alarm relay are activated the temperature alarms are enabled e the reading flashes 1133 030220441 rel 2 0 01 05 2006 45 sbrinamento unita 1 d5 sbrinamento unita 2 d5 sbrinamento
127. r with their description the status of the buzzer the alarm relay and the reset mode Code Icon on the display Alarm relay Buzzer Reset Description rE A flashing on on automatic virtual control probe fault A fashin off off automatic room probe S1 fault A flashing off off automatic defrost probe S2 fault A flashing off off automatic probe S3 fault A flashing off off automatic probe S4 fault A fashin off off automatic probe S5 fault No off off automatic probe not enabled A flashing on on automatic low temperature alarm A flashing on on automatic high temperature alarm A flashing on on manual antifreeze alarm A flashing on on automatic immediate alarm from external contact A flashing on on automatic delayed alarm from external contact on off off automatic defrost running Ed No off off automatic manual defrost on evaporator 1 ended by timeout Ed2 No off off automatic manual defrost on evaporator 2 ended by timeout Pd A flashing on on automatic manual maximum pump down time alarm LP A flashing on on automatic manual low pressure alarm AtS A flashing on on automatic manual autostart in pump down cht No off off automatic manual high condenser temperature pre alarm CHT A flashing on on manual high condenser temperature alarm dor A flashing on on automatic door open too long alarm Etc off off automatic real time clock fault Q flashing EE off off automatic E2prom error
128. r to set on time and the toF parameter to set the off time Press SET to enter a submenu where the Aor Y button can be used to display and set the day hour and minutes of the defrost ON or OFF event For example to set ON from Monday to Saturday at 8 30 and OFF from Monday to Saturday at 19 30 The parameter d__ sets the day of the event as follows d__ 0 gt event disabled d__ 1 to 7 gt Monday to Sunday d__ 8 gt from Monday to Friday 1133 030220441 rel 2 0 01 05 2006 55 56 7 10 Summary table of operating parameters Code Parameter MSYF UOM Type Min Max Def Pw Password MSYF C 0 200 22 2 Measurement stability MSYF C 1 15 4 JE Probe display response MSYF C 0 15 0 4 Virtual probe MSYF C 0 100 0 5 Select C or F MSYF flag C 0 1 0 6 Decimal point MSYF flag C 0 0 Al Display on internal terminal MSYF C I AE Display on external terminal MSYF C 0 6 0 JP Select type of probe MSYF C 0 2 0 A2 Configuration of probe 2 MYF C 0 3 2 S C 0 0 A3 Configuration of probe 3 MSYF 0 3 0 A4 Configuration of probe 4 MSYF 6 0 3 0 A5 Configuration of probe 5 MSYF C 0 3 0 c1 Calibration of probe 1 MSYF CEE C 20 20 0 0 2 Cal
129. ra 15 5 ACCESSORIES 15 CA 16 5 5 R5485 serial IENA iii 17 APOO IFS LA PU RR OS RE 17 5 5 Transformers 1133 power DIN concierne 17 56 R5485 serial Dodd Dicci 17 5 7 RS485 serial board MasterCElla iii 17 5 8 Door interlock MasterCella srriirrerreeeeerreeeeeeeerreeeeeeeerreeeee erre erre cerreeeeicennene 17 ERE e RO 18 5 10 Repeater display interface Option cccssssssssssssssecccsssssssssssssssseccsssssssssssssssssseessensssssssseeesessensssssssee 18 5 11 IROOR 0000 display terminal ccccccsscscssssssssssssssseccssssssssssssssssssecsensssssssssssessseessesssssssseeesseeeeensssssnee 18 5 12 PSTOOVR100 display terminal DOWerCOMPACT uannnccennanannnnnnonoooores ceros 18 5 13 Optional interface repeater display connection Cable uucccccocacacananannnooormssrrnrrrreos 18 6 DESCRIPTION OF THE FUNCTIONS 19 90 Re E 19 6 2 Testing the display and keypad on start up isoocacinacoronacacinuassasisossorsinrersininasssestornicacesinasreoecarisncecss 19 6 3 Switching the controller ON and OFF u cssssssssssssssecccssssssssssssssssscccsssssssssssssssssccessnsssssssseesseseesssssssnen 20 65 hieni Manage A o A A E E EP O N AAA 21 Pe OE A 21 6 7 New defrost activation Modes uie eee 24 6 9 Pump COW ANA 10W PIES nani 26 IL 26 6 10 High Condensing temperature alarm ssssssccsccccssssssssssssssssscccsssssssssss
130. rameter r4 the new value is then used for all the functions relating to the set point e g relative high and low temperature alarms control with dead band control with two compressor Steps etc When r4 3 0 default value the set point is increased by 3 degrees from the value used when the curtain is open Contact closed gt curtain lowered If one of the auxiliary outputs is used to manage the light lowering the curtain automatically switches the light off while raising it switches the light on Note if more than one digital input is configured as a curtain switch the curtain open status occurs when at least one of the inputs is open 1133 030220441 rel 2 0 01 05 2006 A4 Low pressure switch input for pump down The low pressure alarm LP is signalled when the pressure switch signals a low pressure situation with the pump down valve open and the compressor on if the pump down function Is active or when the compressor is on The low pressure alarm signal is nonetheless delayed by the time in minutes set for parameter A7 The low pressure alarm LP door stops the compressor This parameter together with parameters c7 c8 c9 and H1 allows management of the pump down algorithm Note if control with two compressor steps is selected with or without rotation H1 H5 12 or 13 the low pressure alarm deactivates both steps Contact open gt low pressure Important If c7 0 pump down disabled the low pressure sit
131. ration Auxiliary activation from keypad or supervisor Normal operation Alarms See table of alarms and signals Virtual control probe alarm Normal operation Product probe alarm Normal operation Defrost probe alarm Normal operation Condenser probe alarm Normal operation Antifreeze probe alarm Normal operation Tab 6 8 1133 030220441 rel 2 0 01 05 2006 27 6 10 High condensing temperature alarm If a probe Is set as a condenser probe A2 A3 A4 A5 the condensing temperature can be monitored and a high temperature condition signalled probably due to situations of fouling and obstruction If no condenser probe is selected the condenser pre alarm and alarm are disabled The condenser fan output if selected is always OFF If two condenser probes are selected the high condenser temperature pre alarm and alarm manage ment algorithms are performed with reference to the probe with the higher value The alarm status on one of the two condenser probes activates alarm management ignoring the value of the other probe The condenser high temperature threshold can be set with the parameter Ac and with a hysteresis used for activating the high condenser temperature alarm and for controlling the condensation fans by parameter AE If the condenser temperature is gt Ac AE 2 the pre alarm is signalled and there is no modification to the status of the loads but the display simply shows message cht If in the pre alarm situation t
132. reakages severe operating conditions operator errors etc There are two types of HACCP alarm signalled on the display with the following codes respectively HA and HF HA if during operation the temperature measured is higher than the threshold set for the parameter AH high temperature alarm threshold for a time Th higher than the sum of the parameter Ad HACCP alarm delay and the parameter Htd temperature alarm detection delay the HA alarm is generated Allarme HA Registrazione massima temperatura Temperatura Htd Ad Durata allarme Fig 6 m HF this occurs after a power failure for an extended time gt 1 minute if when power returns the temperature is higher than the threshold set for the parameter AH the absolute value of AH if A1 0 the relative value equal to AH St if A1 1 Temperatura Allarme HF Black out set point St The following data are saved when the HA or HF event occurs hour minutes and day of the week type of alarm maximum temperature reached after the activation of the alarm duration of the power failure The activation of one or both of the alarms causes the HACCP LED to flash and the display of the alarm code as well as the recording of the alarm to the E2PROM and the activation of the alarm relay or buzzer if present Pressing SET and down for more than 5 seconds resets the flashing of the HACCP LED
133. reeze alarm Default AdF 1 1133 030220441 rel 2 0 01 05 2006 49 Ac AE Allarme CHt e off refrigerazione ripristino manuale AC _ AE 2 Ac temp condensatore Preallarme solo visualizzazione allarme cht ripristino automatico Fig 7m temperatura Amb Amb F1 Amb F1 AO Evap Evap Fan PT OFF Fig 7 0 50 7 6 Fan management parameters HK Code Parameter MSYF UOM Type Min Max Def FO Fan management F fla C 0 2 0 Fl Fan start temperature F Q F F 50 200 5 0 F2 Fan OFF with compressor OFF F flag C 0 I F3 _ Fans in defrost F flag C 0 I Fd__ FanOFFafter dripping F min F O 15 F4 Condenser fan stop temperature MSYF_ C F C 50 200 40 F5 Condenser fan start differential MSYF_ C F C 0 1 20 5 0 Tab 71 The ir33 series controllers manage the evaporator fans in the following modes e always ON ON only when the compressor is ON e ON according to evaporator and room temperature FO Fan management The fans can be managed by the fan controller which controls them according to the temperature measured by the defrost and virtual control probes Otherwise the fans can be left always ON They can be stopped in the following situations e when the compressor is OFF see parameter F2 during defrosts see parameter F3 durin
134. ripping F min F 0 15 F4 Condenser fan stop temperature MSYF GF C 50 200 40 ES Condenser fan start differential MSYF ees C 0 1 20 5 0 Code Parameter MSYF UOM Type Min Max Def HO Serial address MSYF C 0 207 1 H1 Function of relay 4 MSYF flag C 0 13 H2 Disable keypad IR MSYF flag C 6 1 H3 Remote control enabling code MSYF E 0 255 0 H4 Disable buzzer MSYF flag C 0 0 H5 Function of relay 5 E 0 10 3 H6 Lock keypad MSYF C 0 255 0 H8 Select activation of output with time band MSYF fla C 0 1 0 H9 Enable set point variation with time band MSYF flag G 0 0 Hdh _ Anti sweat heater offset MSYF GEE C 50 200 0 0 Code Parameter MSYF UOM Type Min Max Def HAn Number of HA events recorded MSYF C 0 15 0 HA Date time of last HA event MSYF E y Year siva Years si 0 99 0 M__ Month ii Months 1 12 0 d_ Day ci Days 1 7 0 h__ Hours dd Hours i 0 23 0 n__ Minutes cia Min dd 0 59 0 t Duration a Hours 0 99 0 HAI Date time of penultimate HA event MSYF C HA2 Date time of third from last HA event MSYF C HFn__ Numberof HF events recorded MSYF C 0 15 0 HF Date time of last HF event MSYF C y Year sicu Years di 0 99 0 M__ Month EERE Months 1 12 0 d_ Day ui Days 1 7 0 h Hours dl Hours id 0 23 0 n Minutes dea Min f 0 59 0 Lo Duration iii Hours 0 99 0 HFI Date time of penultimate HF event MSYF C HF2 Date time of third to last HF event MSYF C 0 Htd
135. rost Normal operation Continuous cycle If required the request remains during the defrost Temperature alarm monitoring Normal operation Evaporator fan control Normal operation Power on Normal operation Normally open or normally closed alarm output Normal operation Auxiliary output Normal operation Light output Normal operation Second evaporator output Normal operation Control output for pump down valve Normal operation Condenser fan control output Normal operation Second delayed compressor output Normal operation Auxiltary output with switch off Normal operation Light output with switch off Normal operation No function associated with the AUX output Normal operation Reverse output in control with dead band Normal operation Second compressor step output On hold Second compressor step output with rotation On hold Door switch with compressor fan off and light management Normal operation Door switch with compressor off and light management Normal operation Curtain switch with set point variation and light management Normal operation Light sensor and light management Normal operation Auxiliary output activation switch Normal operation Door switch with compressor fan off no light management Normal operation Door switch with compressor off no light management
136. rost interval dln The parameter dH is a proportional factor that amplifies or attenuates the variation of dl Adi de dE y gr x dE 100 dP 50 dE effective defrost duration dl dI AdI Example If for example the defrost interval dl is set to 8 hours and the maximum defrost duration dP1 or dP2 is set to 30 minutes however usually the defrost is required for 50 less than the time dP1 or dP2 set parameter dn 50 The control algorithm will calculate using the formula dn 100 x dP1 dn1 or dn 100 x dP2 dn2 in the case of the second evaporator the nominal defrost times dn1 or dn2 which in the example shown corresponds to 15 minutes that is 50 of dP The new interval dl1 for the next defrost is calculated by the algorithm using the formula dl a1 2 2E xai A 100 dP 50 At this point if the defrost ends after 10 minutes dE replacing the known values in the formula gives dl 8 30 _ 10 x 8 gH 100 30 50 consequently dl 8 us dea 50 It is therefore clear how the factor dH increases or decreases the new dll 1 If dH 0 no influence dl1 8 0 dl gt 8hours 2 If dH 25 low influence dl1 8 1 167 0 5 gt _8h amp 34 min 3 If dH 50 medium influence dl1 8 1 167 1 gt 9h89min 4 If dH 75 med high influence dl1 8 1 167 1 25 gt 9h amp 27 min 5 If dH 100 high influence dl1 8 1 167 2 gt 10h4 19 min I
137. rost set using the parameter dP Note e model S does not have a defrost relay and consequently the defrost can only be performed by stopping the compressor and selecting end of defrost by time or temperature If the alarms Ed1 and Ed2 are not disabled when activated they can be cancelled by pressing and AUX together for more than 5 seconds or automatically at the start of the next defrost operation if control with two compressor steps is selected with or without rotation H1 12 or 13 the defrost is performed acting on both steps Default do 0 gt electric heater defrost by temperature dl Interval between defrosts The defrosts are performed cyclically at an interval equal to the value of dl in hours or minutes see parameter dC counted from the end of the previous period The duration of the defrost therefore does not therefore affect the interval between defrosts The interval dl is also maintained when the unit is OFF If the interval dl expires when the controller is OFF when it is started again a defrost is performed If dl 0 gt the defrost is never performed except when forced from the keypad manual defrost from the supervisor or from the digital input see parameter A4 or from the Real Time Clock Important PTo ensure regular defrosts the Interval between defrosts must be greater than the maxi mum defrost duration plus the dripping time and post dripping time Note during the defrost the temperature alarms
138. rse output deactivated Temperature alarm monitoring Normal operation Evaporator fan control Normal operation Power on Normal operation Normally open or normally closed alarm output Normal operation Auxiliary output Normal operation Light output Normal operation Second evaporator output Normal operation Control output for pump down valve Normal operation Condenser fan control output Normal operation Second delayed compressor output Normal operation Auxiliary output with switch off Normal operation Light output with switch off Normal operation No function associated with the AUX output Normal operation Reverse output in control with dead band Second compressor step output Normal operation Second compressor step output with rotation Normal operation Door switch with compressor fan off and light management Normal operation Door switch with compressor off and light management Normal operation Curtain switch with set point variation and light management Normal operation Light sensor and light management Normal operation Auxiliary output activation switch Normal operation Door switch with compressor fan off no light management Normal operation Door switch with compressor off no light management Normal operation Light activation from keypad or supervisor Normal operation Auxiliary activation from keypad or supervisor Normal operation Alarms See table of alarms and signals Virtual control probe alarm Reverse output deactivated Product probe alarm Norm
139. s ON insertion request _ 1 A ee pen ON compressore compressors Fig 7 f richiesta inserimento I insertion request _ _ 4 Cous EA OFF ON compressore compressors A compressore compressors OFF 15 min Fig 7 h 38 7 3 Compressor management parameters Code Parametro MSYF U M Type Min Max Def cO Compressor fan and AUX start delay on power up in YF min C 0 15 0 dead zone cl Minimum time between successive starts YF min C 0 15 0 c2 Minimum compressor OFF time YF min C 0 15 0 3 Minimum compressor ON time YF min C 0 15 0 c4__ Duty setting YF min C O 100 0 CC Continuous cycle duration SYF hours C 0 15 0 c6 Alarm bypass after continuous cycle SYF hours C 0 15 2 c7 Maximum pump down time SYF S C O 900 0 cg Comp start delay after open PD valve SYF S C 0 60 5 c9 Enable autostart function in PD SYF flag C 0 0 c10 Select pump down by time or pressure SYF flag C 0 1 0 cll___ Second compressor delay SYF S C 0 250 4 Tab 7 d c0 Compressor and fans start delay if FAN relay present on start up When the controller is switched on the compressor and the evaporator fans and the auxiliary relay in control with dead band H1 11 start after a delay in minutes equal to the value set for this parameter in order to protect the compressor against repeate
140. s switched back ON a defrost request is generated The controller switches from ON to OFF with the following sequence e the compressor protection times are observed e the pump down procedure is performed if enabled e the defrost is forced OFF and will not resume when switched back ON the continuous cycle is forced OFF and will not resume when switched back ON The controller switches from OFF to ON with the following sequence e the compressor protection times are observed e the defrost on start up if enabled is not performed as this in fact refers to power up e the compressor and fan delays on start up are not set 20 1133 030220441 rel 2 0 01 05 2006 6 4 Auxiliary output management The auxiliary output can be controlled by a number of sources button supervisor digital input and time band The AUX is switched on and off in the following events Aux Action Button pressing the button Supervisor variation in value from the supervisor change in the status of the contact opening closing according to day hour minutes for switching on off Tab 6 e Therefore if the digital inputs are stable the AUX output can always be activated and de activated from the keypad or the supervisor The timed light or AUX on off events parameters tON and tOFF depending on parameter H8 are also active when the unit is off Note the anti sweat heater function when the control is powered up or switched on keeps the
141. sed for all functions relating to the set point e g relative high and low temperature alarms dead band etc When r4 3 0 preset value the set point is increased by 3 degrees compared to the value used with the curtain open in direct mode and decreased by 3 degrees in reverse mode rd 2 rd 2 Note the rotation of the loads is available with the second step Setting H1 13 activates the function Fi according to the following table Ig 6 8 Step 1 Step 2 Rotation Compressor 1 Compressor 2 Step 1 Step 2 Rotation Compressor 1 Compressor 2 off off 0 off off off off 0 off off on off 0 on off on off 0 on off on on 0 on on off on 1 off off on off 1 off on on off I off on off off 0 off off off off 0 off off on off 0 on off off off I off off off off 0 off off on off off on on off 0 on off on on on on on on 0 on on on off 0 on off on off I off on off off off off on on on on on off off on on off 0 on off on on 0 on on Reverse Tab 6 m When H1 13 the rotation flag is reversed whenever the compressor stops and then on the following start request or the following deactivation of one of the two loads the load not involved in the previous activation or deactivation will be used Note if control with 2 compressor steps Is selected all the functions that feature the activation or deacti vation of the compressor will activate or deactivate both ste
142. splay will show the name of the first of the parameters of the HA and HF alarms 2 use the AandW buttons to display the codes relating to the HA and HF alarms ON when having reached the desired parameter press SET to display the value Tab 2 c 4 if the selected parameter is HA or HF use Aand W to scroll the year month day hour minutes and duration of the last HA or HF alarm activated Example y03 W M07 down d22 W h23 W m57 W t99 W start again 5 Press SET again to return to the list of the parameters relating to the HA and HF alarms The following operations are possible from inside the menu delete the HACCP alarm by pressing the HACCP button for powercompact and small MasterCella or W SET ir33 Ir33power and Ir33DIN for more than 1 second The message TES indicates that the alarm has been deleted the HACCP LED stops flashing the HA and or HF signal is also reset and the monitoring of HA is reinitialised delete the HACCP alarms and the alarms saved HAn HA HA1 HA2 HFn HF HF1 HF2 by pressing the HACCP button for more than 5 seconds the message rES indicates that the alarms have been deleted the HACCP LED stops flashing the HA and or HF signal is reset the HAn HA HA1 HA2 HFn HF HF1 HF2 alarms saved are reset and the monitoring of HA Is reinitialised 6 Normal operation can be resumed at any time by pressing the prg button for 3 seconds or waiting for the expiry of the session due to timeout 60 sec
143. sssssseeseenssssssseeeseeceeenssssssee 28 6 11 Control Wilde ad DAN arie 29 6 12 CONTO WII SC CONG SPP sonal poi 30 613 Anti sweat neater UA rara idea 31 IA ci n 31 6 15 Special functions for the management of multiplexed cabinets MPX 32 6 16 HACCP Hazard Analysis and Critical Control POINt ccccssccssssssseesssccssssssseessscsssssseesseeessssneeee 33 1133 030220440 rel 2 0 01 05 2006 5 7 DESCRIPTION OF THE OPERATING PARAMETERS 34 7 1 Temperature probe management ParaMetel sssssssssssssssccccsssssssssssssssscsnsssssssssesssseeseesssssssnesseeeses 34 72 Temperature control ParaMEterS s screensaver ionici 36 13 Compressor Management pala MES 38 TA Defrost management paramMelerS iii iii arcanos 40 75 Alarm management parameters aiscscarosnecsssnasesssscoorssnsessistsesssecdepoinentsiubsesse sssencebsuasenassceonssbsecbstassesiats 43 A ASE 50 7 7 General configuration ParaMetelS csssssssssssssssscccssssssssssssesssseccssssssssssssseeesssssssssssssscesseceeesssssssseeeesees 51 8 HACCP alarmi management Parameters erronea 54 79 RTC and timed defrost management ParaMetelS ecccccsscccsssssssssssssssccsssssssssssssssseeceenssssssneeeeeeee 55 7 10 Summary table of operating ParaMeters cccsssssssssssssssescccssssssssssssssecssessssssssssessssecesenssssssneeeesee 56 8 ALARMS AND SIGNALS 58 8 1 Summary table of alarms and signals display buzzer
144. stallation The controllers are mounted using the screws at the front or alternatively using two quick fit side brac kets with compact dimensions made from plastic In circuit testing The ir33 platform controllers are made using the most advanced SMD technology All the controllers undergo IN CIRCUIT TESTING to check electrical operation of all components NTC probe The controllers can manage two types of NTC probes see parameter P standard version 50T90 C NTCO HP or alternatively the model for high temperatures up to 150 C enhanced NTC 40T150 C Watch dog This feature prevents the microprocessor from losing control over the unit even in the presence of considerable electromagnetic disturbance In the event of abnormal operation the watchdog function re establishes the initial operating status Not all the competitors fit their products with this safety feature Electromagnetic compatibility The ir33 platform is compliant with EU standards on electromagnetic compatibility The quality and the safety of the ir33 controllers are ensured by the CAREL ISO 9001 certified design and production system and by the CE mark on the product Network functions The controllers feature management of multiplexed defrosts remote alarm signals and the downloading of the parameters via the local network Parameter selection Selection of the parameters on the display simplified by the use of icons or with the standard Carel pro
145. step associated with the compressor output passes from direct to reverse Note 1 the step associated with the aux1 output is only associated with the protection timer co while the step associated with the compressor in both direct and reverse is associated with the timers c0 cl c2 c3 As a result the steps may be active at the same time due to the protectors associated with the compressor step minimum on time as well as the unit defrost status 2 if the curtain switch function is enabled A4 7 the controller modifies the set point when the con tact closes adding or subtracting the value of parameter r4 the new value Is used for all functions relating to the set point e g relative high and low temperature alarms dead band etc When r4 3 0 preset value the set point is increased by 3 degrees compared to the value used with the curtain open in direct mode and decreased by 3 degrees in reverse mode The rotation of the loads Is not envisaged in reverse operating mode r3 2 The following table defines the status of the reverse output aux1 in control with dead band Function active Reverse output in control with dead band Normal direct or reverse cycle control Normal operation Remote off from supervisor or keypad Reverse output deactivated Defrost Normal operation Continuous cycle Reve
146. supervisor is always performed even when there is a delayed defrost request from external digital input or if there is a defrost enabling input in non enabled or delayed status If parameter r3 is set to 1 Direct or 2 Reverse the defrost is never performed 6 6 2 Defrost request status This status exists when one of the events that activates the defrost is present but defrost cannot be started and therefore is put on hold for the following reasons compressor and fans start up delay c0 as these delay the activation of the compressor e compressor protection times c1 c2 c3 as these delay the activation of the compressor e low pressure alarm only with hot gas defrost as this delays the activation of the compressor e continuous cycle running pump down procedure running as this delays the activation of the compressor defrost delay at start up d5 defrost delay from digital input configured as defrost start or enable d5 e enable defrost A4 A5 1133 030220441 rel 2 0 01 05 2006 21 22 e immediate alarm from external digital input A4 A5 as this delays compressor activation e alarm delayed by time A7 from external digital input A4 A5 as this delays compressor activation high condenser temperature alarm only with hot gas defrost as this delays compressor activation opening the door only with hot gas defrost if the compressor has the door management algorithm 6 6
147. t normal 7 8 HACCP alarm management parameters No Code Parameter MSYF UOM Type Min Max Def 108 HAn Number of HA events recorded MSYF C 0 15 0 109 HA Date time of last HA event MSYF C y__ Year di Years i 0 99 0 M__ Month FER Months 12 0 d_ Day ii Days i 1 7 0 h___ Hours a Hours J 0 23 0 n__ Minutes DIS Min 0 59 0 t__ Duration dl Hours id 0 99 0 110 HAI Date time of penultimate HA event MSYF C 111 HA2 Date time of third from last HA event MSYF C 112 HFn Number of HF events recorded MSYF C 0 15 0 113 HF Date time of last HF event MSYF C y___ Year foe Years E 0 9 0 M__ Month FER Months F 1 12 0 d_ Day dii Days 1 7 0 h__ Hours ibi Hours 0 23 0 n___ Minutes culls Min 0 59 0 t____ Duration vere Hours bi 0 99 0 114__ HF1_ Date time of penultimate HF event MSYF C 115 HF2 Date time of third to last HF event MSYF C 0 116 Htd HACCP alarm delay MSYF min cC o 250 0 Tab 7s HAn Number of HA alarm events recorded This parameter indicates the number of HA alarms activated A maximum of 15 events can be counted For each alarm event after the 15th the counter stays at 15 Default HAn 0 HA Date time of the last HA event HA1 Date time of the penultimate HA event HA2 Date time of the third from last HA event These parameters access a submenu where
148. t or can be reset manually by pressing the and AUX buttons for more than 5 seconds Default A8 0 gt warnings Ed1 and Ed2 disabled A9 Configuration of the third multifunction digital input ir33DIN models H only For this parameter the same description relating to parameter A4 is valid obviously referring to the thirs digital input Default A9 0 gt Digital input not active 48 1133 030220441 rel 2 0 01 05 2006 Ado Light management mode with door switch masked parameter This parameter is used to select the algorithm for managing the door Ado Light when opening the door Algorithm Description 0 off normal open close on extended open close open close 1 off extendednor open close open close on mal open close Tab 7 i Note if the digital input is selected so as not to manage the light A4 A5 13 or 14 the algorithm is modified as follows Default Ado 0 gt Normal algorithm Ac Condenser high temperature alarm If a probe Is set as the condenser probe the condenser temperature can be monitored to signal the high temperature alarm probably due to obstruction or fouling If the condenser temperature is gt Ac AE 2 the pre alarm is signalled displaying the alarm message cht If in the pre alarm situation the condenser temperature falls to lt Ac the pre alarm Is reset and the signal cht is cancelled If the condenser temperature increases to gt Ac AE the alarm CHt is activated and t
149. t the status of the light relay on the master Default HrL 0 gt remote status disabled HrA HrA enable the synchronizer to remote the status of the master auxiliary relay to the control ler masked parameter As above but relating to the auxiliary relay on the master Default HrA 0 gt remote status disabled HSA enable the synchronizer to remote the alarms from other devices in the local network to the controller masked parameter The parameter HSA enables the synchronizer to remote the alarms from other devices in the local network to the controller If HSA is equal to 1 the alarms on the other controllers in the network will be shown on the local display with the symbol Nx where x 1 to 6 Default HSA 0 gt display disabled In select normal master or slave unit masked parameter The parameter In establishes whether the unit is normal master or slave The maximum number of slaves in a sub network is 5 e Normal stand alone unit e Master Master unit Allows the synchronisation of the defrosts the light and aux relays and of the downloading of the parameters e Slave Slave unit Unit part of a local network serving the master The following table shows the values of the parameter In 0 No Master Slave normal 1 Master 2 Slave 1 3 Slave 2 4 Slave 3 5 Slave 4 6 Slave 5 Note the synchronisation of the multiplexed defrost is activated only on Master and Slave controllers Default In 0 g
150. table and more precise reading The parameter acts on the temperature readings filtering the minimum variations and at the same time considers the average of the readings Default 2 4 3 Probe display response This parameter is used to set the update rate for the temperature display The temperature shown on the di splay tends to follow rapid deviations away from the set point very slowly and vice versa moves very quickly in the event where the temperature displayed is nearing the set point If the control temperature exceeds the high or low temperature thresholds and an AL or AH alarm is activated or if the maximum number of filtering steps 255 is exceeded see the Timeout column in Table 7b the filtering would immediately be bypassed and the temperature displayed would be the temperature effectively measured until all the alarms are reset The parameter only affects the temperature displayed and not the temperature used for the control functions Important the control temperature actually measured differs from the value displayed and therefore the outputs may not be activated with reference to the latter temperature value e if the probe displayed is a product probe with temperature values higher than the set point the probe display rate algorithm will be faster for decreases in the temperature and slower for increases if the probe displayed Is an evaporator or condenser probe the display rate algorithm always refers
151. tart phases if selected with the appropriate parameters H1 8 auxiliary output with deactivation when OFF in the off status the auxiliary output cannot be activated When starting again the auxiliary output returns to the previous status H1 9 light output with deactivation when OFF in the off status the light cannot be activated When starting again the light returns to the previous status H1 10 no function associated with the output In this case the logical output AUX1 Is not used for any function If logical outputs AUX1 and AUX2 are associated with the same relay this setting means the relay in question will only be associated with AUX2 Vice versa using this setting for AUX2 the relay will only be associated with AUX1 This possibility is useful when there is just one auxiliary relay and it needs to be used alternatively as a light relay associated with the light button and icon or as an AUX relay associated with the AUX button and icon 1133 030220441 rel 2 0 01 05 2006 5 ON ventole FA 0 2 E4 F5 temp condensatore prima accensione Fig 7 p 1133 ir33power and ir33DIN ali standard Tasto TastoSet Tasto Tasto down det Tasto ia Tasto prg mute Tasto prg mute Fig 7 q Value Function Disabled set button 1 down def button 2 up aux button 4 prg mute button 8 Tab 7 p powercompact powercompact small and MasterCella keypad 7 6 5
152. time set for parameter cc has elapsed or upon reaching the minimum specified temperature see the minimum temperature alarm parameter AL Default cc 0 hours Note if control with two compressor steps is selected with or without rotation H1 12 or 13 the continuous cycle acts on both steps c6 Alarm bypass after continuous cycle This is the time in hours for which the temperature alarm is deactivated after a continuous cycle If the temperature of the refrigeration unit after the continuous cycle falls due by inertia below the minimum temperature set point AL the activation of the low temperature alarm is delayed for time c6 Default c6 2 hours Varning remember that at the minimum specified temperature see the minimum temperature alarm parameter AL the continuous cycle is forced OFF and deactivated c7 Maximum pump down time This parameter determines depending on the setting of parameter c10 the maximum time in minutes by which the circuit must reach the required low pressure value in pump down operation c10 0 or the compressor operating time after the closing of the pump down valve in case of pump down operation by time c10 1 The pump down valve must be connected to the auxiliary output setting the relevant parameter H1 Pump down by pressure c10 1 When reaching the maximum pump down time the compressor stops and the Pd alarm is activated which disables the compressor autostart function see paramet
153. to the set point and thus may have specific effects fast when the evap probe reading increases and slow when it decreases fast when the condenser probe reading decreases and slow when it increases e the parameter 3 acts on the temperature displayed by the instrument if tE 0 no probe displayed by the repeater display if the repeater display is configured tE lt gt 0 the parameter 3 will act on the temperature displayed by the repeater Example in the case of bottle coolers typically used in supermarkets when the doors are opened frequently due to the greater thermal inertia of the liquids compared to the air and the fact that the probe Is positioned in the air and not directly on the products the instrument measures a tempera ture that is higher than effective temperature of the soft drinks thus displaying a quite unrealistic temperature Setting the parameter 3 to a value other than 0 any abrupt variations in temperature are filtered on the display showing a temperature trend that is closer to the actual trend of the product temperature The following table shows the possible values of 3 and the corresponding display delayed update values Tdel Value of par 3 Display delay Tdel Timeout 0 Disabled 0 1 55 21 min 2 10s 42 min 3 155 64 min 4 205 85 min 5 255 106 min 6 305 127 min 7 40s 170 min 8 50s 212 min 9 60s 255 min 10 158 319 min
154. uation can still be detected If more than one digital input is configured as the low pressure switch input the low pressure alarm is activated when at least one of the inputs Is open A4 9 Door switch with fan stop only Same as for option A4 5 with the difference being that when opening the door only the fans are stopped rather than the compressor and the fans Note if more than one digital input is configured as the door switch the door open status occurs when at least one of the inputs Is open A4 10 Direct Reverse operation The digital input is used to select direct operation cooling contact open or reverse operation for heating contact closed For example a switch can be connected t select heating or cooling operation Depending on the value of parameter r3 the following configurations are possible when r3 0 Contact open direct operation with defrost control Contact closed reverse operation When r3 1 or r3 2 Contact open direct operation Contact closed reverse operation WARNING if A4 10 the status of the digital input has priority over the parameter r3 that is the value assigned to parameter r3 is ignored and only the status open or closed of the digital input is considered Note l if more than one digital input is configured as direct reverse the direct status occurs when at least one of the inputs Is open 2 the status of digital input selected as direct and reverse has priority over the operating mod
155. ubtracting the value of parameter r4 the new value is used for all functions relating to the set point e g relative high and low temperature alarms dead band etc When r4 3 0 preset value the set point Is increased by 3 degrees compared to the value used with the curtain open Default rn 4 rr Reverse differential for control with dead band Establishes the value of the differential used in reverse temperature control when the auxiliary output Is selected as heating in control with dead band mode Default rr 2 Note no protection times are featured for the reverse output r1 minimum set point allowed Determines the minimum value that can be set for the set point Using this parameter prevents the user from setting a set point lower than the value indicated by r1 Default r1 50 r2 maximum set point allowed Determines the maximum value that can be set for the set point Using this parameter prevents the user from setting a set point higher than the value indicated by r2 Default r2 60 r3 operating mode 1133 can work as a thermostat and defrost controller for static units at normal temperature r3 0 as a simple thermostat in Direct operation r3 1 or as simple thermostat in Reverse cycle operation r3 2 r3 0 Direct thermostat with defrost control cooling r3 1 Direct thermostat cooling r3 2 Reverse cycle thermostat heating Also see the description of parameters A4and A5 Note with r3
156. unning e the compressor is always ON e the low temperature alarm is deactivated e the icon Is on steady If during the continuous cycle the door is opened and one of the digital inputs is set to manage the opening of the door the compressor stops and consequently the continuous cycle is temporarily interrupted When the door closes the continuous cycle starts from where it left off and thus in practice the continuous cycle duration timer cc is put on hold when the door is opened and starts again when the door closes 6 9 3 End of the continuous cycle The continuous cycle ends in the following ways A dei e pressing AUX MasterCella powercompact and powercompact small or aux W ir33 power and DIN for more than 5 seconds e minimum specified temperature AL reached e maximum duration of the continuous cycle cc reached e instrument switched off OFF from the keypad or supervisor e changeover from Direct operating mode or Direct with defrost to Reverse cycle mode heating by parameter r3 or the digital input A4 A5 The low temperature alarm is bypassed for a time c6 from the end of the continuous cycle Note if control with 2 compressor steps is selected with or without rotation H1 12 or 13 the conti nuous cycle activates both steps Function active Function with continuous cycle Normal direct
157. ures the four buttons PRG mute SET UP and DOWN which access almost all the functions provided by the instrument keypad The buttons can be divided into three groups based on their functions Buttons for enabling and disabling the use of the remote control Figure 5 g Buttons for remote simulation of the instrument keypad Figure 5 h e Buttons for direct display modification of the most commonly used parameters Figure 5 1 Activating and deactivating the use of the remote control Button Immediate function Delayed function START used to enable the remote control each instrument displays its own enabling code EXIT ends operation using the remote control cancelling all changes made to the parameters PRG used to display the configuration parameters pressing and holding for 5s ends use of the remote control saving the modified parameters NUMBERS lused to select the instrument by entering the enabling code displayed Tab 5 b By pressing the START button each instrument displays its own remote control enabling code H3 The numeric keypad is used to enter the enabling code of the instrument in question At the end of this operation only the instrument with the selected enabling code will be programmed from the remote control all the others will resume normal operation Assigning different enabling codes to the instruments allows in this phase only the desired instrument to be programmed using the re
158. uxiliary relay is selected as the auxiliary evaporator defrost output H1 the defrost is performed at the same time on both evaporators The parameter d 1 displays the defrost probe set for the main evaporator the first probe assigned as a defrost probe while parameter d 2 displays the defrost probe set for the secondary evaporator the second probe assigned as a defrost probe If no probes have been assigned to the defrost function the defrost will end by timeout after the periods dt1 and dt2 6 6 1 Defrost events The following events activate the defrost function Event Implementation Condition Interval between defrosts dl expired Depending on enabling status At the expiry of the interval Expiry of RTC trigger Depending on enabling status Compressor running time Depending on enabling status When the defrost starts Interval between defrosts dl expired with Depending on enabling status At the expiry of the interval skip defrost algorithm At start up Depending on enabling status At start up d5 Digital input Depending on enabling status When the defrost starts Supervisor Always Keypad Always ee Tab 6 g Implementation of defrost depending on enabling status If a digital input is configured to enable the defrost the defrost is performed when such input is in the enabling status otherwise it stays pending Important the defrost started from the keypad or by the
159. valve open since following the opening of the valve the compressor has not yet started again the routine closes the valve and if necessary starts the pump down procedure if not in low pressure if autostart and pump down by pressure is enabled When the controller requests the activation of the compressor if the minimum OFF time c2 and the minimum time between two starts of the compressor cl have elapsed the pump down valve is opened allowing the refrigerant gas to return to the compressor intake The compressor Is started after the delay time c8 from the opening of the valve Note if the start request occurs when the compressor is ON and the valve OFF as it is in pump down or autostart mode the valve is opened immediately 6 8 3 Compressor autostart in pump down Parameter c9 is used to enable the compressor autostart function in pump down status Once the compressor has been stopped in pump down due to low pressure if the low pressure switch signals an increase in pressure due to the faulty seal of the pump down valve the compressor is started again until it reaches the low pressure value The compressor autostart function considers the minimum OFF time c2 and the time between two starts c1 while minimum ON time Is ignored Consequently when reaching the low pressure value the compressor is stopped even if time c2 has not elapsed The activation of a compressor autostart cycle in pump down is signalled by the message AtS on automatic r
160. witch with set point variation and light management Normal operation Light sensor and light management Normal operation Normal operation Auxiliary output activation switch Door switch with compressor fan off no light management Normal operation Door switch with compressor off no light management Normal operation Light activation from keypad or supervisor Normal operation Auxiliary activation from keypad or supervisor Normal operation Alarms See table of alarms and signals Virtual control probe alarm Output deactivated Product probe alarm Normal operation Defrost probe alarm Normal operation Condenser probe alarm Normal operation Antifreeze probe alarm Normal operation Tab 6 n 1133 030220441 rel 2 0 01 05 2006 6 13 Anti sweat heater function The anti sweat heater function is used to maintain the aux1 output configured as the light or aux H1 2 3 8 9 deactivated while the control temperature virtual probe is less than St Hdh when the instrument is first powered up the HI IA dA CHt EE EF rE alarms are reset or when switching on During the aforementioned alarms the aux1 output configured as above is deactivated Hdh represents the offset from the set point for the anti sweat heater function If Hdh 0 the anti sweat heater function is disabled Note at the end of the anti swe
161. y respectively Note the remote light and auxiliary function is managed by the synchronizer 6 15 4 Downloading the parameters Entering parameter configuration mode with the current password 44 22 44 66 activates the download of the parameters The download can be performed either from the master or from a slave in the local network The controller that starts the function transfers its parameters to the other units The synchronizer activates the message dnl on all the controllers for the duration of the operation In the event of errors when transferring the parameters network errors or errors saving the parameters to the controller at the end of the download the synchronizer activates the corresponding error message dx x 1 to 6 to indicate that the download to unit x was not performed correctly Note The parameters are downloaded by the network synchronizer and thus this devices defines which parameters are transferred during the download Important the parameters HrL HrA HsA and In are masked and therefore only visible using the programming kit IROPZPRGOO 1133 030220441 rel 2 0 01 05 2006 6 16 HACCP Hazard Analysis and Critical Control Point This function can only be activated on the controllers with the RTC option fitted and allows advanced control of the operating temperature and the recording of any anomalies due to power failures or increases in the operating temperature due to various causes b

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