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1. PBOOCOHN10 PBOOCOHB10 Auxiliary Output Digital Input 1 Digital Input 2 Power Supply 115 230 Vac TO REMOTE DISPLAY TO CAREL NETWORK SERIAL INTERFACE PBOOHOHN10 PBOOHOHB10 Auxiliary Output Digital Input 1 Digital Input 2 Power Supply 115 230 Vac Carel reserves the right to modify the features of its products without prior notice code 030220371 preliminary version dated 8 08 03 56 Notes Tecnologia ed Evoluzione CAREL S p A Via dell Industria 11 35020 Brugine Padova Italy Tel 39 049 9716611 Fax 39 049 9716600 http www carel com e mail carel carel com Agenzia Agency Code 030220370 rel preliminary version dated 08 08 03
2. die 4 4 Description of the software functions eee eese eee eene tenete sensns enne tn setas tas tassa sense REEE ooroo eoor oos oe eade 5 4 1 Testing the display and keypad on start up sss ener neant 5 4 2 Switching the controller iiti 6 4 3 ee ee a deae oa Cee Teoe 7 44 New defrost activation modes eee iene rennes 9 4 5 Pump down and low pressure sss lm Eee 10 4 6 Continuous cycle esses nemen Eme 11 4 7 High condensing temperature alarm ume tta MUIR er 12 4 8 HACCP Hazard Analysis and Critical Control Point 13 4 9 rH relative humidity ss Ber 13 5 Description of the operating parameters eene eene NAR nenne tn eee ene rene nee ns setas stone setas setas sse 14 5 1 Temperature probe 14 5 2 Temperature control parameters 0 eese 18 53 Compressor management 1 20 54 Defrost management paramete
3. rd Control delta Establishes the value of the differential or hysteresis used for temperature control Low values guarantee a room 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 In all powercompact instruments for refrigeration the differential is set to the right of the set point as shown in the figure Direct operation DIRECT Freddo Cooling rd ON Attuatore D Actuator OFF Default rd 2 Set Point rl Minimum set point allowed Determines the minimum value can be set for the set point Using this parameter prevents the user from setting a set point lower than the value indicated by rl Default r1 50 r2 Maximum set point allowed Determines the maximum value 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 The powercompact 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 wit
4. these parameters are used for recording the temperature These instruments can record the minimum and maximum temperature measured by the ambient probe in a period of up to 999 hours over 41 days To enable this function proceed as follows e set r5 1 e select rt set e press gt to display how many hours the minimum and maximum temperature have been recorded for if the function has just been enabled rt 0 e to start recording the temperatures again press for more than 54 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 e to display the maximum temperature measured by the probe read the value associated with rH e display the minimum temperature measured by the probe read the value associated with rL Warning after the maximum time of 999 hours the monitoring of the minimum and maximum temperature continues while the time value remains fixed at 999 Warnings If the instrument is not connected to a power backup unit a temporary power failure will reset the values of rt rL and rH When power returns the controller automatically starts monitoring the temperature again with rt 0 Default r5 0 code 4030220371 preliminary version dated 8 08 03 19 powercompact 5 3 Compressor management parameters No Code Parameter UOM
5. 4 6 1 Activating the continuous cycle e Press for more than 5 seconds If the duration of the continuous cycle cc is set to 0 the continuous cycle is never activated If when the activation of the continuous cycle is requested a low temperature alarm AL is present the continuous cycle is not started 4 6 2 Continuous cycle request status This 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 2 c3 immediate or delayed alarm from external digital input A4 A5 AO defrost and dripping in progress defrost request on start up and defrost delay on start up compressor and fan start delay on start up door open see Continuous cycle in progress below pump down running low pressure alarm LP active high condenser temperature alarm During the continuous cycle request the icon amp flashes 4 6 3 Continuous cycle in progress When the continuous cycle is running e compressor is always ON e The low temperature alarm is deactivated e The icon amp 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
6. parameters Case 2 light ON when opening the door If the door is opened with light ON it is assumed that the user has entered the cold room closing the door behind him a first time and then subsequently exits the room closing the door a second time When the door is opened e the compressor the evaporator fans are switched off e the light remains ON only in the models fitted with at least 1 auxiliary relay programmed as a light output e the reading displayed flashes and the icon flashes e the temperature alarms are disabled When the door 1s closed the first time the controller maintains the previous situation e compressor and the evaporator fans remain OFF e thelight remains ON e the reading displayed flashes and the icon flashes e the temperature alarms are disabled 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 respecting any protection times selected see the c parameters code 4030220371 preliminary version dated 8 08 03 31 powercompact If after opening the door remains open for a time greater than d8 the controller returns to normal operation e compressor and fan ON if requested light OFF the reading flashes the buzzer and the alarm relay are activated the temperature alarms are enabled To stop the reading from flas
7. richiesta inserimento 71 A e ON insertion request pino unc OFF 1 ON compressore i compressor Default c3 0 gt no minimum running time is set c4 Duty setting or safety relay If the virtual control probe fault alarm occurs see parameter 4 this parameter is used to ensure the operation of the compressor awaiting the elimination of the fault Important In the event of errors on probe 2 the virtual probe corresponds to the room probe probe 4 and consequently the Duty Setting is not activated In practice the compressor no longer being able to operate based on the temperature due to the probe fault uns cyclically with an operating time ON time equal to the value set for the parameter c4 in minutes and a fixed OFF time of 15 minutes ON time value c4 OFF time 15 minutes fixed There are two values of c4 that represent special cases 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 15 ignored Special situations e Ifthe virtual control probe error occurs while the compressor is OFF it remains OFF for 15 minutes and then is started respecting the times set for parameters c1 and c2 and remains ON for a time equal to c4 It then starts duty setting operation This special operationis signalled by
8. F0 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 In alternative the fans can be always on They can be stopped in the following situations e when the compressor is OFF see parameter F2 e during defrosts see parameter F3 e during the dripping period see parameter dd e for a further post dripping period see parameter Fd They can be forced ON in the following situations e 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 F0 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 F0 0 gt fans always not managed by the controller F1 Fan start temperature parameter valid only if F0 1 or F0 2 When F0 1 parameter F1 indicates the minimum difference that must exist between the room temperature and the evaporator temperature for the fans to be started Then e evaporator temperature lt virtual probe F1 A0 the fans are ON e evaporator temperature virtual probe F1
9. tE 2 gt Probe 1 tE 3 gt Probe 2 tE 4 gt Probe 3 tE 5 gt Probe 3 gt Not selected Warnings 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 e If the probe to be displayed is faulty the display will show the message _ e Ifthe terminal 15 not present the display will remain completely dark Default tE 0 gt Remote terminal not present P Select type of probe Used to select the type of probe used for the measurements P 0 gt Standard NTC with range 50 90 C P 1 gt Enhanced NTC with range 40 150 C P 2 gt Standard PTC with range 50 150 C For correct readings from the PTC probes the hardware must be fitted to accept PTC readings as well as NTC Default P 0 gt Standard NTC with range 50 90 C Available on all models fitted with NTC inputs 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 In any case probe 2 is used for the calculation of the virtual control probe Default A2 2 gt Defrost probe A3 Configuration of probe 3 Used to configure the operating mode of probe 3 A3
10. the following functions are active Button Function def Start and stop the defrost 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 In Level 0 the SET and PRG mute buttons are also active these are used to set the set point Level 1 and the configuration parameters Level 2 Button Immediate function Delayed function pressing and holding for 5s nds operation with the remote control saving the parameters modified used to access parameter configuration mode SET used to modify the set point In Levels 1 and Level 2 the PRG MUTE SEL UP and DOWN buttons repeat the corresponding functions on the instrument keypad In this mode all the instrument parameters can be displayed and modified even those without shortcut buttons 3 2 2 1 Buttons for the direct display of the most commonly used parameters Some parameters relating to e Temperature Defrost Alarms Fans HACCP Diferential are directly accessible using specific buttons 6 H 5 i E a e 000 E t code 030220371 preliminary version dated 8 08 03 3 powercompact 3 3 Hardware layout and using the printer POWERCOMPACT BOARD ser m PRINTER TER AC PR
11. 0 gt Probe 3 absent Digital input A3 1 gt Product probe used for display only A3 2 gt Defrost probe A3 3 gt Condenser probe Default A3 0 gt Probe 3 absent C1 Calibration or offset probe 1 C2 Calibration or offset probe 2 C3 Calibration or offset probe 3 C4 Calibration or offset probe 4 powercompact 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 temperature 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 calibration or offset can be set from 20 to 20 Warning During the display of the parameter hold probe already corrected by the offset Default C1 0 gt no offset to the reading of probe 1 C2 0 gt no offset to the reading of probe 2 C3 0 gt no offset to the reading of probe 3 C4 0 gt no offset to the reading of probe 4 code 030220371 preliminary version dated 8 08 03 17 set gt for more than 1 second to display the reading of the corresponding powercompact 5 2 Temperature control parameters MSY No Co Parameter UOM pu Def Max Min de F
12. Def Min 28 c0 Comp and fan start delay on SYF min C 0 15 0 start up 29 1 Minimum time between SYF min C 0 15 0 successive starts 30 c2 Minimum compressor OFF time SYF min 0 15 0 31 c3 Minimum compressor ON time SYF min 0 15 0 32 c4 Duty setting SYF min 0 100 0 33 cc Continuous cycle duration SYF hours C 4 15 0 34 c6 A bypass after continuous SYF hours C 2 15 0 35 c7 Maximum pump down time SYF min 0 30 0 36 c8 Comp start delay after open PD SYF sec C 0 60 0 valve 37 c9 Enable autostart function in PD SYF flag 0 1 0 38 c10 Select pump down by time or SYF flag 0 1 0 pressure c0 Compressor and fan start delay if FAN relay present on start up When the controller is switched on the compressor and the evaporator fans start after a delay in minutes equal to the value set for this parameter This delay is used to protect the compressor from repeated starts in the event of frequent power failures Example setting c0 6 obliges the compressor to wait 6 minutes before starting from when power returns In the event of systems with more than one compressor the parameter c0 can also be used to avoid simultaneous starts of a series of units Simply set a on different value of c0 for each compressor accensione strumento power ON richiesta intervento insertion request compressore compressor Default c0 0 gt no minimum delay is set when the
13. the fans are OFF Once stopped the fans can start again when the difference between the two probes is equal to F1 A0 where 0 is the fan controller differential see the following figure When F0 2 parameter F1 indicates the absolute temperature Amb for starting the fans 5 Amb F1 AN When F0 2 5 Amber AN e evaporator temperature lt F1 A0 the fans are ON 5 Evap e evaporator temperature gt F1 the fans are OFF PEN Note in the event of two evaporators and therefore two OFF evaporator probes control will be performed using the maximum value read by the two probes so as to ensure that the fans are started when both evaporators reach the set temperature Default 1 5 gt as shown in the figure 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 0 This is used to decide whether the fans must operate as established by parameter FO except for in the defrost cycle see parameters F3 dd and Fd or when the compressor is ON e 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 gt the fans OFF when the compressor is OFF Default F2 1 gt fans OFF with compressor OFF code 030220371 preliminary version da
14. 0 2 0 2 3 0 0 3 0 0 3 0 0 0 207 20 eCPF C 00 20 20 C F C 0 020 20 C F C 0 0 20 20 F 2 0 20 01 CF C 50 _ 60 200 8 flag 0 2 0 C F i 3 0 200 00 flag 0 1 0 hours F 999 0 F min E 0 15 0 min E 0 15 0 min C 0 15 0 min C 0 15 0 min 0 100 0 hous 0 15 0 hours S 2 15 0 min 0 30 0 sec e 0 60 0 flag C 0 1 0 flag 0 1 0 flag 0 3 0 hours F 8 250 0 C F E 4 0 200 50 Cer P 4 0 200 50 min B 30 250 1 B 30 250 1 Min 0 250 0 flag 0 1 0 min 0 250 0 1 2 0 min F 2 15 0 hours 1 15 0 flag 0 1 0 JE flag 0 1 0 min 0 250 0 powercompact 56 3d 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 15 76 78 79 80 81 82 83 84 85 86 87 88 89 93 94 dll 412 dH AO Al AL AH Ad A4 AS A6 AT 9 FO F2 F3 Fd HO H1 H2 H3 H4 H5 H6 H7 HPr Running time temperature threshold ii Advanced defrost SYF Nominal defrost duration SYF Proportional factor variat in d SYF Alarm and fan differential MSYF Type of threshold AL and MSYF Low temperature alarm threshold MSYF High temperature alarm threshold MSYF Low and high temperature alarm MSYF delay Digital input 1 configuration MSYF Digital input 2 configura
15. Enable defrost A4 A5 A9 Immediate alarm from external digital input A4 A5 A9 Alarm from external digital input delayed by the time A7 A4 AS A9 High condenser temperature alarm only with hot gas defrost Opening of the door only with hot gas defrost if the compressor is subject to the door management algorithm 4 3 3 Starting the defrost The defrost is performed by electric heater or hot gas according to the value of parameter d0 If defrost by temperature has been selected the defrost is performed only if the evaporator probe reading is less than the end defrost temperature dP1 and dP2 or if there is a probe error This is also true in the case of two evaporators In the electric heater defrost e compressor stops Pump down is run if enabled e the time 43 elapses e the defrost relay relating to the main evaporator is activated to turn the heaters on e the defrost relay relating to the auxiliary evaporator is activated to turn the heaters on In the defrost hot gas e the compressor starts the time d3 elapses e the defrost relay relating to the main evaporator is activated to open the hot gas valve e the defrost relay relating to the auxiliary evaporator is activated to open the hot gas valve code 030220371 preliminary version dated 8 08 03 7 powercompact 4 3 4 Defrost in progress During
16. code 030220371 preliminary version dated 8 08 03 44 powercompact OFF Signal switch to OFF reset alarms with manual reset TES Signal reset HACCP alarms reset temperature monitoring The buzzer sounds if enabled by parameter The alarm relay is activated if one of the outputs auxiliary 1 or auxiliary 2 or H5 has been assigned the alarm relay function normally closed or normally open Note the buzzer is disabled by the Carel Supervisory System 6 2 Table of alarms and signals functions enabled disabled The following table highlights the functions that are enabled and disabled in the various alarm situations PD valve Duty setting Duty setting c4 Defrost not performed Continuous cycle Evap fans Cond fans no effect no effect not performed Duty setting CoA Duty setting 49 not performed no effect no effect not performed no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect not performed not performed not performed not performed _ mot performed not performed e not performed not performed not performed not performed not performed not performed LO no effect no effect no effect no effec
17. dt1 4 C dt2 End defrost temperature SET POINT auxiliary evaporator This parameter is used to set the end defrost temperature measured on the auxiliary evaporator In any case the maximum defrost duration is equal to the value in minutes set for parameter dP2 e If when a defrost is requested the temperature measured by the defrost probe onthe 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 e Ifthe defrost probe on the auxiliary evaporator is faulty or disabled the controller performs a timed defrost with a duration equal to the value set for parameter dP2 e Ifthe end defrost set point is not reached within the time set for parameter dp2 the defrost is stopped If enabled parameter A8 the error Ed2 is displayed which persists until the start of the next defrost cycle Default dt2 4 C dP1 Maximum defrost duration main evaporator 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 represents the actual duration of the defrost Default dP1 30 minutes dP2 Maximum defrost duration auxiliary evaporator Determines the maximum defrost dura
18. e c3 minimum operating time d9 0 the protection times are respected d9 1 the protection times are not respected the 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 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 contiguous 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 in the instruments where this is fitted Once having set selected the parameter d 1 pressing the button does not allow the value to be modified but rather simply displays the temperature measured by defrost probe 1 If defrost probe 1 is disabled three horizontal dashes will be displayed instead of the value d 2 Defrost probe 2 reading This parameter is used to display the value measured by defrost probe 2 in the instruments where this is fitted Once having P selected the parameter 4 2 pressing the button does
19. functions The functions of the standard keypad are the functions described until now The MODIFIED keypad moves the HACCP set function to the combination gt 8 and enables the rH function see the paragraph DESCRIPTION OF THE SOFTWARE FUNCTIONS In the same ways as on the standard keypad the functions of the individual buttons can be disabled using parameter H6 Default H7 0 gt Use the standard keypad HPr Print profile This is used to select the profile required for printing the reports on an external printer see paragraph Hardware layout and using the printer Default HPr 0 gt Printing reports disabled code 030220371 preliminary version dated 8 08 03 41 powercompact 5 8 HACCP alarm management parameters No Code Parameter js UOM Es Def Max Min HA Date time of the last HA event HAL Date time of the penultimate HA event HA Date time of the third to last HA event This parameter accesses a submenu where by pressing the and buttons the year month day hour minutes and duration of the last HA alarm activated can be scrolled e g y03 gt M07 gt 422 gt h23 gt m57 gt 199 indicates that the last alarm HA was activated on 22 July 2003 at 23 57 and lasted 99 hours Default HAn Number of HA alarm events recorded This parameter indicates the number of HA alarms
20. Warnings for the relative threshold e the value of AH does not indicate the alarm temperature but rather the maximum deviation allowed from the set point e changing the set point automatically changes the high temperature alarm while the maximum deviation allowed remains fixed Warnings e the high temperature alarm also features automatic reset Default AH 0 gt high temperature alarm disabled Ad Temperature alarm delay Indicates after how many minutes the temperature alarm is signalled from when the temperature threshold was 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 a short period e temperature alarms are generated during the defrost and continuous cycle procedures e 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 the time set for Ad As already indicated by the default value for parameters AL and the instruments are programmed as default with relative 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 high temperature and LO
21. 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 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 delay in minutes for signalling the temperature alarm A4 Multifunction digital input configuration In the Infrared 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 This is the default value for all versions except for model IR33M 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 e activates the buzzer if enabled e activates the alarm relay if selected e involves the following actions on the actuators compressor operates depending on the values assigned to parameter A6 stop compressor from external alarm o fans continue to operate according to the f
22. m 0 59 this sets the hour and minutes of the event Default d__ 0 h__ 0 m_ 0 gt Event disabled set Pressing gt temporarily saves the changes to the 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 alternatively to return to the list of RTC parameters press for 1 second tc RTC date time setting This parameter is used be set the date time of the Real Time Clock set Selecting the parameter tc and pressing the L button accesses a submenu in which the button can be used to display and set the current year month day of the month day of the week hour and minute 03 2 Moz gt uoa 8 ni 2 mse 5 a06 setting in the example Thursday 6 March 2003 time 11 56 where indicates the year 0 99 M__ indicates the month 1 12 where January 1 December 12 d gt indicates the day of the month 1 31 u indicates the day of the week 1 7 where Monday 1 Sunday 7 h indicates the hour 0 23 m__ indicates the minutes 0 59 To set the RTC parameters follow the same procedure as described for parameters td1 td8 Setting the current date time automatically resets any EtC signal RTC error These parameters have an immediate effect that is are saved wi
23. setting procedure All the modifications made to the parameters temporarily saved in the RAM can cancelled and normal operation resumed by not pressing any button for 60 seconds thus allowing the parameter setting session to expire due to timeout If the instrument is switched off before pressing E all the modifications made to the parameters and temporarily saved will be lost 2 5 Setting the set point To display or set the set point proceed as follows set 1 Press for more than 1 second to display the set point 2 Increase or decrease the set point using the buttons respectively until reaching the desired value set 3 Press again to confirm the new value 2 6 Alarms with manual reset The alarms with manual reset can be reset by pressing together for more than 5 seconds 2 7 Procedure for setting the default parameter values To set the default parameter values for the controller proceed as follows 1 Switch the instrument off 2 Pressthe amp 3 Switch the instrument on again holding the button until the message std is shown on the display Note the default values are only set for the visible parameters C or F in accordance with the models see the tables Summary of operating parameters button code 030220371 preliminary version dated 8 08 03 powercompact 2 8 Automatic serial address assignment The automatic setting of the serial addre
24. OFF e the fans are OFF At the end of the dripping time the post dripping phase starts Fd the compressor restarts normal operation the fans are stopped If the post dripping time is set to zero normal control is resumed directly 4 3 7 Post dripping fans OFF The post dripping time is set by the parameter Fd At the end of the post dripping time normal control resumes 4 3 8 Notes on the defrost function e Ifdefrost with RTC is selected the parameter dI has no effect on the days when defrost events are set In any case the dI timer is updated and the parameter becomes valid on all days only in the event of RTC alarms e timer used to determine the defrost interval dI is updated cyclically when reaching the end of the interval This allows cyclical defrosts The timer is also updated when the unit is OFF If the timer dI expires when 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 dI is not reset at the start of the defrost Consequently at the end of defrost the timer dI may expire and another defrost is performed code 030220371 preliminary version dated 8 08 03 8 powercompact If a defrost is run from the digital input or by the compressor running time algorithm the timer dI is reset when the defrost request is generated In this way the defrost interv
25. UPLOAD DOWNLOAD DOWNLOAD e Open the rear cover on the key and position the 2dipswitches according to the desired operation e Close the rear cover on the key and insert the key in the connector of the controller e Press the button and check the LED red for a few seconds then green indicates the correct completion of the operation Other signals or the the LEDs indicates that problems have occurred refer to the table below e At the end of the operation release the button after a few seconds the LEDs go OFF e Remove the key from the controller Signal LED Error Meaning and solution Red LED flashing Batteries discharged at The batteries are discharged the copy operation cannot be Start copy performed Replace the batteries Batteries discharged during copy or at end of copy During the copy operation or at the end of the operation the battery Green LED fase level is low Replace the batteries and repeat the operation The parameter setup cannot be copied as the model of controller Instrument not connected is not compatible This error only occurs for the compatible DOWNLOAD function check the code of the controller and run the copy only for compatible codes Error in data being Error in the data being copied The instrument EEPROM is Red EDs ON copied corrupted and therefore the copy from the key cannot be performed The copy operation was no
26. be updated from the eighth defrost on 4 4 3 Start defrost according to variable time intervals compared to the setting of parameter dI In this mode the defrost interval is changed according to the duration of the previous defrost The following parameters are associated with this function e d12 enable the function e dn nominal duration of the defrost in proportion to the set defrost timeout e dH proportional control factor This mode is enabled by setting parameter d12 2 The nominal defrost times dn1 and dn2 are determined by the factor dn and by the defrost timeout values dP 1 and dP2 according to the following relationships dnl d obl dn2 dn qp 100 100 When the defrost is run according to the duration dE1 the defrost interval dI is changed by the value calculated using algorithm P The proportional factor is determined by the parameter dH code 4030220371 preliminary version dated 8 08 03 9 powercompact 4 4 4 Start defrost according to the duration of the previous defrost with the possibility to skip the defrost combination of 2 and 3 Enable d12 3 In this mode the control runs the defrost keeping account both of the duration of the previous defrost with the possibility to skip the defrost and the interval set by the parameter dI 4 5 Pump down and low pressure 4 5 1 Enabling the function The pump down function
27. buttons e C evap O ventole e HF p only allow access to the corresponding parameter code code 030220371 preliminary version dated 8 08 03 powercompact 3 2 2 COMPACT remote control The COMPACT remote control features 20 buttons and allows direct access to the following parameters e Temperature Defrost Fans Alarms HACCP The following functions can also be controlled e Start defrost Aux Light ON OFF Mute The remote control features the four buttons PRG MUTE SET UP and DOWN which access almost all the functions provided by the instrument keypad The buttons be divided into three groups based on their functions e Buttons for enabling and disabling the use of the remote control MIO e Buttons for the remote simulation of the instrument keypad 6 e Buttons for the direct display of the most commonly used parameters Terporaure ORE Direi QQ QQ g LI 5 B 4 Activating and deactivating programming from the remote control instrument displays its own enabling code ends operation using the remote control cancelling all changes made to the parameters Button Immediate function Delayed function Sl OS li candle th remote control each EXIT pressing and holding for 5s ends operation PRG used to display the configuration paramet
28. connection Cross section fixed screw on Maximum current SUMUS removable for screw blocks for wires from 0 5 to 2 5 mm2 12A faston with crimped contacts Caso laste dimensions 36x167x75 mm p fitted in depth 64 mm panel using screws from the front panel dimensions 29 138 5 mm AssemDIy drilling template distance between fastening screws 153 5 mm fastening screws countersunk with maximum diameter of thread 3 9mm digits 3 digit LED Display display from 99 to 999 operating status indicated with graphic icons on the display Keypad 8 rubber silicon buttons Infrared receiver available according to the model Clock with backup battery available according to the model Buzzer available on all models Operating temperature 10T65 C for all the versions Operating humidity lt 90 r H non condensing Storage temperature 20T70 C Storage humidity lt 90 RH non condensing Front panel index of protection panel installation with IP65 gasket Environmental pollution Normal PTI of the insulating material gt 250 V Period of electric stress across Long insulating parts Category of resistance to fire category D UL 94 V0 Class of protection against voltage surges category 1 Type of connection and disconnection lerelay contacts micro disconnection Classification according to protect
29. 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 IMPORTANT the door switch features two different algorithms for switching the light on off 4 6 6 ON OFF management The unit can be switched on off by a number of sources Button Supervisor and Digital input The digital input has the priority and controls the ON OFF status by level The other sources have a lower priority and act by status ON OFF Priority Action Digital input Highest According to the level of the digital input Button Lowest Pressing the button Supervisor Lowest Variationrin the value from the supervisor IMPORTANT if there is more than one digital input selected for the ON Off function the ON status will be activated when all the digital inputs are closed If just one contact is open the units switched Off 4 7 High condensing temperature alarm If a probe is set as a condenser probe A2 A3 A4 A5 the condensing temperature can be monitored and high temperature condition signalled probably due to situations of fouling and blockage If no condenser probe is selected the condenser pre alarm and alarm are disabled The condenser fan output if selected 15 always ON The high condenser temperature threshold can be set using the parameter Ac A hysteresis can be set for the activation of the high condenser temperatur
30. fan operates more slowly dehumidifying the air more code 030220371 preliminary version dated 8 08 03 13 5 Description of the operating parameters 51 Temperature probe parameters No Code Parameter 4 2 Measurement stability 5 3 Probe display rate 6 4 Virtual probe 7 5 Select C or F 8 6 Decimal point 9 tI Display on internal terminal 10 tE Display on external terminal 11 P Selecttype of probe 12 A2 Configuration of probe 2 13 A3 Configuration of probe 3 14 A4 Configuration of probe 4 15 1 Calibration of probe 1 16 c2 Calibration of probe 2 17 c3 Calibration of probe 3 18 c4 Calibration of probe 4 2 Measurement stability MSYF MSYF MSYF MSYF MSYF MSYF MSYF MSYF MSYF MSYF MSYF MSYF MSYF MSYF MSYF MSYF UOM Type Qu CY Qi Y 040 0900100 Def OO O F amp F 15 15 100 WWN AD ADF FR 20 20 20 20 E I I I I N N N WN ogESO powercompact Defines the coefficient used to stabilise the temperature reading Low values assigned to this parameter allow a prompt response of the sensor to the temperature variations the reading however become more sensitive to disturbance High values slow down the response but guarantee greater immunity to disturbance that is a more stable and more precise reading The parameter 2 filters the temperature
31. is displayed with resolution to the tenth of a degree between 19 9 and 19 9 C The display of the tenths can be disabled by setting the related parameter HACCP ON if the HACCP function is enabled Flashes when there are HACCP alarms stored HA and or HF CONTINUOUS CYCLE ON when the CONTINUOUS CYCLE function is activated Flashes if the activation of the function is prevented due to external disabling or procedures in progress e g minimum compressor OFF time code 030220371 preliminary version dated 8 08 03 powercompact 1 2 ICON FUNCTION Normal operation Start up ON OFF BLINK o COMPRESSOR Compressor ON Compressor OFF Compressor request Fan request Da DEFROST Defrost active Defrost not active Defrost request AUX auxiliary output AUX auxiliary AUX FPS active output not active Delayed extemal alarm nen I A ALARM before the expiry of No alarm present CA 5 external digital input immediate the time A7 delayed CLOCK If at least 1 timed No timed defrost has ON if Real time defrost has been set been set clock present EA LIGHT auxiliary output LIGHT auxiliary 9 HORT ON output OFF 7 A SERVICE Noanslfunction Malfunction e g E PROM error or probe fault Request service HACCP HACCP HACCP function HACCP function not HACCP alarm saved HA and or enabled enabled HF continuous CONTINUOUS CON
32. not allow the value to be modified but rather simply displays the temperature measured by defrost probe 2 If defrost probe 2 is disabled three horizontal dashes will be displayed instead of the value dC Time base Used to modify the unit of measure used to count the times set for parameters dI defrost interval dP1 and dP2 defrost duration dC 0 gt dI expressed in hours and dP2 in minutes dC 1 gt dI expressed in minutes dP1 and dP2 in seconds The parameter dC 1 can be used to test the operation of the defrost with reduced 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 that 15 dI defrost interval in hours and dP2 maximum defrost duration in minutes code 030220371 preliminary version dated 8 08 03 26 powercompact d10 Compressor running time This parameter indicates the compressor operating time with the temperature less than the threshold indicated by the parameter d11 after which the a defrost request is generated Setting d10 0 disables the function Default d10 0 gt Function disabled d11 Running time temperature threshold This parameter indicates the evaporati
33. powercompact Defrost time band 1 Day Hour Minutes Defrost time band 2 Day Hour Minutes Defrost time band 7 Day Hour Minutes Defrost time band 8 Day Hour Minutes RTC date time setting Year Month Day of the month Day of the week Hour Minutes code 030220371 preliminary version dated 8 08 03 48 7 AUX and Light buttons The s buttons are always assigned to the logical outputs auxiliary 1 and 2 respectively powercompact In addition the logical outputs auxiliary 1 and 2 can also be assigned different functions By default auxiliary 1 is and auxiliary 2 is e In relation to the function assigned the corresponding icon is activated on the display Physical outy Button Function Icon auxiliary 1 AUX AUX default AUX auxiliary 2 LIGHT LIGHT default LIGHT Consequently a situation may be developed in which by assigning different functions pressing switches on the Light and vice versa The auxiliary relays can also be assigned the same function for example AUX The two buttons e auxiliary 1 auxiliary 2 different relays but the signal will be the same Function LIGHT AUX Icon and will then activate Function Note that the logical output 1 can be assigned to one or two relays In this case pressing activates b
34. 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 During the duty setting phase the compressor protection times are ignored e Ifthe virtual control probe error occurs while the compressor is ON it stays ON for the time c4 and then stops without respecting the minimum running time set for the parameter c3 and remains OFF for 15 minutes the e LED flashes in this phase After this phase it starts cyclical operation with the operating time equal to the value of c4 During the duty setting phase the compressor protection times are ignored e Ifthe virtual control probe error occurs while the controller is in defrost or continuous cycle operation the controller remains in the existing status until the end of the phase and then starts duty setting operation To restart the defrost or continuous cycle operation the room probe needs to be operating correctly During the duty setting phase the compressor protection times are ignored Warning If the probe error disappears the unit returns to normal operation C4 ON compressore compressor _ La Selle OFF OFF 15min Default c4 0 gt compressor always Off in the event of a virtual control probe error ce Continuous cycle duration This is the time in hours that the compressor operates continuously fo
35. the high and low temperature alarms and AH see the figure shown below and for the management of the fans see the F parameters In the event of an alarm as can be seen from the figure the value of A0 affects to the determination of the effective activation points of the temperature alarm allarme bassa temperatura allarme alta temperatura low temperature alarm high temperature alarm set point Default A0 0 2 degrees A1 Type of threshold AL and Used to select if the values of parameters and AH are considered absolute thresholds or relative to the value of the set point Al 20 gt AL and AH are considered as thresholds relative to the value of the set point Al 1 gt AL and AH are considered absolute thresholds Default Al 0 gt AL and AH are considered relative thresholds AL Minimum temperature alarm Used to determine the activation threshold for the low temperature alarm Relative threshold for low temperature alarm set point value of e AL 0 gt Alarm disabled Absolute threshold for low temperature alarm value of AL e AL 50 Alarm disabled Important If the threshold AL is selected as being relative the value for disabling the alarm is 0 if the threshold AL is selected as absolute the alarm disabling value is 50 Warnings for th
36. Default 2 4 code 4030220371 preliminary version dated 8 08 03 14 powercompact 3 Probe display rate This parameter is used to set the rate at which the temperature display is updated The temperature shown on the display 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 approaching the set point If the control temperature exceeds the high or low temperature thresholds and an alarm is activated AL or AH or if the maximum number of filtering steps equal to 255 is exceeded see the Timeout column in the table below the filtering would immediately be bypassed and the temperature displayed would be the temperature effectively measured until all the alarms are reset The action of the parameter 3 only affects the temperature displayed and not the temperature used for the control functions Important the control temperature effectively measured is different from the temperature displayed The activation of the outputs consequently may not correspond to the temperature displayed Important 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 envisaged 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 supe
37. INTER POWERCOMPACT BOARD REMOTE sera KEY POWERCOMPACT BOARD ardore The printer interface is connected using the 485 bus on the standard Carel supervisor The printer interface is essentially a data collector actingras the master and collecting all the variables from all the units connected to the 485 network compatibly with the resources available on the microprocessor in the interface and will replace physically the supervisor CAREL The printer is connected directly to the printer interface using a standard CENTRONICS parallel cable The printer interface can be connected to the standard Carel supervisor The printer interface is fitted with a buzzer and a button with the following functions Pressing for 5 seconds buzzer BEEP print the report depending on the print profile selected using the parameter HPr on the individual units connected to the 485 network Pressing for 10 seconds buzzer print the report print parameters depending on the print profile selected using the parameter HPr on the individual units connected to the 485 network The reports for an individual unit can be printed by pressing a combination of buttons set gt for 5 seconds On pressing the combination of buttons the controller will raise the value of a special digital var
38. Increased whenever a filtering step is performed K gt 0 1 K code 030220371 preliminary version dated 8 08 03 15 powercompact 4 Probe average Virtual probe This parameter 1s 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 S2 see the parameter A2 This parameter 1s useful in special applications Example the room probe can be placed at the inlet and probe 2 at the outlet Control can be performed based on the weighted average of the two values read The formula used is probe average Virtual probe ST 100 P S2 P 100 where 1 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 the controller refers to a virtual probe calculated from 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 Warning 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 Defines the
39. TINUOUS CONTINUOUS CYCLE furf tion e CYCLE function CYCLE function CYCLE request activated not activated Keypad d HACCP Pressing this button displays a sub menu used to access the parameters relating to HACCP alarms HA HAn HF HFn 6 ON OFF If pressed for more than 5 seconds switches the controller on off If the controller is OFF the display shows the message OFF alternating with the reading from the probe set using the parameter The parameters can still be accessed for display and modification 2 PRG MUTE Silences the audible alarm buzzer and deactivates the alarm relay If pressed for more than 1 second during the reception of the automatic network address assignment request package starts the address assignment procedure see paragraph Automatic serial address assignment procedure If pressed for more than 5 seconds accesses the menu for setting the type F parameters frequent set If pressed for more than 5 seconds together with 2 accesses the menu for setting the type parameters configuration If pressed for more than 5 seconds when switching the instrument ON activates the procedure for setting the default parameter values If pressed for more than 5 seconds together with resets any active alarms with manual reset the message rES indicates that the alarm has been reset 9 If pressed for m
40. activated A maximum of 15 events can be counted For each alarm event following the 15th the counter stays at 15 Default HAn 0 Date time of the last HF event HF Date time of the penultimate HF event HF Date time of the third to last HF event This parameter accesses a submenu where by pressing the and buttons the year month day hour minutes and duration of the last alarm activated can be scrolled e g y03 M08 gt 29 gt h19 gt m45 gt 198 indicates that the last HF alarm was activated on 29 August 2003 at 19 45 and lasted 98 hours Default HFn Number of HF alarm events recorded This parameter indicates the number of HF alarms activated A maximum of 15 events can be counted For each alarm event following the 15th the counter stays at 15 Default HFn 0 Htd HACCP alarm 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 HA that HF is disabled Any alarms already saved will still be stored even when Htd 0 Default Htd 0 gt HACCP monitoring disabled code 030220371 preliminary version dated 8 08 03 42 powercompact 5 9 RTC and timed defrost management parameters No Parameter id UOM 2 Def Max Min 100 tdl Defrost time band 1 SYF 101 2 Defrost time ba
41. activated and the compressor is stopped The alarm can only be reset manually HC alarm and refrigeration 2 OFF manual reset Condensing temperature Pre alarm display only HC alarm automatic reset In addition the auxiliary relay can be set as a condenser fan output see parameters and H5 controlled according to the following diagram Condesing Ac AE Ac temperature FANS OFF In the event of condenser probe errors the alarm and the pre alarm are activated In the event of condenser probe errors the condenser fan output if selected is activated Important if no condenser probe is selected the condensing temperature alarm and pre alarm are disabled and the condenser fan output if selected is activated Default Ac 70 0 degrees code 030220371 preliminary version dated 8 08 03 35 powercompact Acd High condenser temperature alarm delay The parameter Acd can be used to set a delay on the activation of the high condenser 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 of 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 AE High condenser temperature alarm diff
42. al represents 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 dI must be set to the end of the defrost delay on start up This allows for units programmed in the same way with the same value of dI and different values of d5 the defrosts on start up to be distributed over time and subsequently maintain the staggering of the defrosts for the following events 4 4 New defrost activation modes This controller offers the possibility to manage the defrosts in three different modes in addition to the standard mode 4 4 1 Defrost status according to compressor running time enable parameter d10 gt 0 This mode affects the start of the defrost Two parameters are envisaged e 110 compressor running time with the evaporation temperature less than the threshold after which a defrost request is generated e d11 evaporation temperature threshold The defrost is generated if the compressor has operated e forthe time 10 e with an evaporator probe reading less than d11 In the case of two evaporators there are separate timers for each evaporator Each timer is started whenever the compressor is ON and the corresponding evaporator probe reading is less than the threshold d11 The defrost will start when at lea
43. an parameters If the external alarm is detected during a defrost or the continuous cycle the controller exits the procedure When stopping the compressor the minimum 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 Note if more than one digital input is configured as an immediate alarm the alarm is generated when at least one of the inputs is open code 4030220371 preliminary version dated 8 08 03 29 powercompact 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 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 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 if mor
44. and LIGHT remain active the other auxiliary outputs are deactivated e The buzzer is disabled e The control functions defrosts continuous cycle signalling the temperature alarm and all other functions are not performed e The compressor protection times are observed e When the instrument is switched back on all the functions are re activated with the exception of o Defrost on start up o Compressor and fan delay on start up Contact closed ON The ON OFF from external digital input has priority over the keypad and the supervisor If A4 26 A5 6 and A9 6 gt 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 code 4030220371 preliminary version dated 8 08 03 32 powercompact 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 parameter r4 the new value is then used for all the functions relating to the set point e g relative high and low temperature alarms etc When r4 3 0 preset 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 ligh
45. buzzer MSYF flag 0 1 0 85 H5 Function of relay 5 MSYF 3 6 0 86 H6 Lock keypad MSYF C 255 255 0 87 H7 Select keypad MSYF 0 1 0 88 HPr Print profile MSYF 0 15 0 HO Serial address This is used to assign to the instrument an address that it responds to when connected to a supervisory or telemaintenance system Also valid for serial connection or network connection Default H0 1 H1 Operating logic of output AUXI relay 4 This establishes whether the fourth relay is used as an auxiliary output e g demister fan or other ON OFF actuator as an alarm output as a light output as a defrost actuator for the auxiliary evaporator as a pump down valve control or as the condenser fan output e 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 Operation with the alarm relay de energised ensures maximum safety as that the alarm is also activated in the event of power failures or disconnection of the cables e Alarm output Normally de energised The relay is energised when an alarm occurs e Auxiliary output The actuator connected can be switched ON OFF using the button Switching the actuator ON OFF is signalled by the AUK icon on the display e Light output The light on the unit can be switched on off by pressing the e button on the keypad when the door is opene
46. compressor is started when switching the instrument on 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 Example if the maximum number of activations hour allowed is 10 simply set cl 6 to ensure that this limit is respected richiesta inserimento ON insertion request Vie Sel ee OFF compressore compressor Default cl 0 gt no minimum time is set between two starts c2 Minimum compressor OFF time Sets the minimum time in minutes that the compressor must 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 in the case of systems with hermetic and capillary compressors richiesta inserimento 1 BON gece dg on insertion request VS ee IIS OFF compressore compressor Default c2 0 gt no minimum OFF time is set code 030220371 preliminary version dated 8 08 03 20 powercompact 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
47. d curtain closed 8 low pressure switch input for pump down open low pressure 9 door switch with fans only stopped open door open 10 Direct Reverse open direct 11 Light sensor above the threshold off Default A4 0 gt Digital input not active for all other models A 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 gt Digital input not active code 030220371 preliminary version dated 8 08 03 34 powercompact A6 Stop compressor from external alarm 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 Special cases 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 c4 Default A6 0 gt compressor OFF in the event of external alarms AT Delay in detecting the external alarm Multifunction input Sets the delay in minutes for detecting the external alarm if select
48. d if the door switch is enabled see parameter A4 If the door switch is enabled the light is switched off when the door is closed unless previously switched on from the keypad Switching the light on off is signalled by the icon on the display e 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 e pump down valve output The activation and the deactivation of the pump down valve can be controlled e Condenser fan output If the high condenser temperature alarm is activated see Ac the output can be used to control the condenser fans code 030220371 preliminary version dated 8 08 03 38 powercompact In summary H1 0 Alarm output normally energised The relay is de energised when an alarm occurs 1 1 Alarm output normally de energised The relay is energised when an alarm occurs HI 22 Auxiliary output H1 3 Light output HI 24 Auxiliary evaporator defrost output H1 5 pump down valve output H1 6 Condenser fan output Note the mode H1 0 is useful for signalling power failures with an alarm Default H1 1 gt relay energised with alarm active Available on all models fitted with relay 4 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 m
49. e alarm and for controlling the condenser fans using the parameter 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 rather the display simply shows the message cht If in the pre alarm situation the condenser temperature falls to lt Ac the pre alarm ends and the signal cht disappears If the condenser temperature 15 gt Ac AE the alarm delay timer is started this can be set using the parameter Acd If at the end of the delay Acd the temperature is still above the threshold Ac AF the alarm CH is activated the message CH is shown on the display and the compressor is stopped without observing the safety times cl c2 c3 The alarm 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 H5 which are activated if the condenser temperature gt Ac and are deactivated if the condenser temperature lt Ac AF 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 Condenser probe Pre alarm Alarm Conden
50. e relative threshold e the value of AL does not indicate the alarm temperature but rather the maximum deviation allowed from the set point e changing the set point automatically changes the low temperature alarm while the maximum deviation allowed AL remains fixed Warnings e 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 e 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 code 030220371 preliminary version dated 8 08 03 28 powercompact AH High temperature alarm Used to determine the activation threshold for the high temperature alarm Relative threshold for high temperature alarm set point value of AH e AH 0 gt Alarm disabled Absolute threshold for high temperature alarm value of AH e AH 50 Alarm disabled Important If the threshold AH is selected as being relative the value for disabling the alarm is 0 if the threshold AH is selected as absolute the alarm disabling value 1s 50
51. e than one digital input is configured as a delayed alarm the alarm is generated when at least one of the inputs is open A4 3 The meaning varies according to the model used For all other models A4 3 Enable defrost An external contact can be connected to the multifunction input to enable or inhibit the defrost e Contact open the defrost is inhibited e Contact closed the defrost is enabled e Contact closed without request from the controller o the defrost is not performed e Contact closed and defrost in progress o when the digital input is opened the defrost is immediately stopped and the unit restarts normal operation without performing the dripping or post dripping phased The LED starts flashing to indicate that the defrost request 1s pending awaiting the next enabling signal closing of the contact when the defrost will be performed completely Suggestion this function 15 useful for example in the event of 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 inhibited 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 Note if more than one digital input 1s configured to enable the defrost the defrost will be disabled whe
52. econds together with PRG MUTE accesses the menu for setting the type C parameters If pressed for more than second configuration displays and or sets the set point UP CC If pressed for more than 5 seconds together with UP CC starts the report printing procedure if the controller is connected to the printer interface code 030220371 preliminary version dated 8 08 03 1 3 1 3 4 5 7 8 powercompact Procedure for displaying and deleting the HACCP alarms Press The display shows the name of the first parameter relating to the HF alarms Scroll the menu with the buttons the display shows the names of the various parameters relating to the HA and HF alarms set Once having reached the desired parameter press gt to display the value If the selected parameter is HA or HF use to scroll the year month day hour minutes and duration of the last HA or alarm activated Example y03 M07 157 199 start again Indicates that the last HA or HF alarm was activated on 22 July 2003 at 23 57 and lasted 99 hours Ld n v 5 402 h23 set Press gt again to return to the list of the parameters relating to the HA and HF alarms The following functions are always available inside the menu _ 4 mute the buzzer and deactivate the alarm relay by p
53. ed as delayed external alarm A4 AS or 9 2 Sets the delay in minutes for signalling the low pressure alarm LP the low pressure switch input is selected A4 5 or A9 8 Default A7 0 A8 Enable alarms Edl and Ed2 The alarms Ed1 and Ed signal the end of the defrost due to the maximum duration of the defrost time These can be disabled by setting A8 0 The alarms Ed1 and Ed2 if enabled are deleted at the start of the following defrost or can be reset manually by pressing the and buttons for more than 5 seconds Default A8 0 gt alarms Edl and Ed disabled A9 Configuration of the third multifunction digital input For this parameter the same description relating to parameter A4 is valid obviously referring to the third digital input Default A9 0 gt Digital input not active Ac High condenser 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 blockages If the condenser temperature gt Ac AE 2 the pre alarm is signalled displaying the alarm message cht If in the pre alarm situation the condenser temperature falls lt the pre alarm is reset and the signal cht disappears If the condenser temperature increases gt Ac AEF the alarm CH is
54. ee contact contact resistance lt 10 ohm closing 53 current 6mA NTC or PTC depending on the model Inputs DD voltage free contact contact resistance lt 10 ohm closing 54 current 6 mA NTC or PTC depending on the model Maximum distance of probes and digital inputs less than 10m Note the power supply and load connections should be kept separate from the probe cables digital inputs repeater display and supervisor 10 at 25 C range 50 90 C Std Carel NTC RR 1 C in the range 50T50 C 3 C in the range 50 90 C 50 kQ at 25 C range 40T150 C 1 5 C in the range 20T115 C High emperaire NTE measurement error 4 C in the range outside 20T115 C 985 Q at 0 C range from 50 150 C Std Carel PTC o 2 C in the range 50T50 C 4 C in the range 50T150 C according to the model EN60730 1 UL 873 current at 250 operating cycles current at 250 Vac operating Vac cycles 5 Ares IFLA 6LRA SA 5 1 A 100000 C300 30000 8 4 A NO 8 A res 2FLA 12LRA 8A 6 4 A NC 100000 C300 30000 12Q A 12 A res SFLA 30LRA Relay outputs Io changeover 100000 C300 30000 2 10 10 A 100000 12 A res 12FLA 30000 72LRA insulation from the very low voltage parts 6 mm air 8 mm on surface 3750 V insulation insulation between the relay primary _ outputs 3 mm in air 4 mm on surface 1250 V insulation code 030220371 preliminary version dated 8 08 03 52 powercompact Type of
55. efrost cont Start and stop the continuous cycle AUX Activation and deactivation of auxiliary relay 1 Light Activation and deactivation of auxiliary relay 2 ON OFF Instrument ON OFF AUX NE PRG MUTE Mute the buzzer 1f ON and deactivate the alarm relay zl LUCE ONOFF In Level 0 the SET and PRG MUTE buttons are also active these are used to set the set point Level 1 and the configuration parameters Level 2 Button Immediate function Delayed function pressing and holding for 5 seconds ends PRG MUTE used to access parameter configuration mode operation with the remote control saving the parameters modified SET used to modify the set point In Levels 1 and Level 2 the PRG MUTE SEL UP and DOWN buttons repeat the corresponding functions on the instrument keypad In this mode all the instrument parameters can be displayed and modified including those without shortcut buttons Buttons for the direct modification of the more commonly used parameters TEMPERATURA setpoint Some parameters relating to differenzale 1 e Temperature e Defrost fre e Alarms e Continuous cycle e Fans ritardo allarme are directly accessible using specific buttons which can also be used to modify the value of the parameter durata c c LM A The
56. efrost or its request and the effective start e The defrost digital input see parameter A4 used to perform defrosts in real time Simply connect a timer to the multifunction digital input see again parameter A4 The defrost will be activated when the timer contact closes e Jn the event of a series of units connected to the same timer the 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 dI 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 inserting an intermediate relay for each contact Default d5 0 gt no delay in the defrost when switching the instrument on or following the activation of the multifunction input d6 Display during defrost Values envisaged e 46 0 during the defrost the instrument displays the text alternating with the value read by the probe selected using the parameter tI This is to signal that any high temperature values are due to the defrost procedure in progress e 46 1 gt during the defrost the last temperature read before the start of the cycle remains on the display The displa
57. er 13 or the digital input A4 A5 and 9 immediate alarm from external digital contact delayed alarm from external digital contact high condenser temperature alarm end of enabling signal from external digital contact the defrost request remains pending instrument switched OFF from the keypad or supervisor the defrost request remains pending e defrost from the supervisor If the defrost is terminated prematurely the dripping and post dripping with the fans OFF phases are not performed these times are ignored Special case if the controller is running a hot gas defrost and a low pressure alarm occurs the compressor will stop running the pump down procedure if enabled due to the low pressure alarm and the defrost will probably end by timeout At the end of the defrost the compressor is stopped hot gas and pump down is run if enabled if a dripping time is set dd the fans are stopped the defrost relay is deactivated the alarm bypass times after defrost are counted d8 any pending defrost requests are reset If the dripping time is set to zero the compressor remains in the previous status and normal control resumes 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 4 3 6 Dripping The dripping time is set by the parameter dd In dripping e the compressor is
58. erential This represents the differential used for the activation of the high condenser temperature alarm and the control of the condenser fans Default AE 5 0 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 switched on when the sensor detects light and is switched off when the sensor detects darkness The light is switched off for a minimum of 5 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 15 detected the inside light remains OFF while if light is detected the inside light is switched back on and the same cycle starts again Default AF 0 code 030220371 preliminary version dated 8 08 03 36 powercompact 5 6 Evaporator fan management parameters d No sr Parameter MSYF UOM Def Max Min In normal operation the powercompact series controllers can manage the evaporator fans in the following modes e alwaysON e only when the compressor is ON e according to the evaporator temperature and the room temperature
59. ers with the remote control saving the i parameters modified NUMBERS used to select the instrument by entering the 4 5 T bling code displayed ena Co On pressing the START button each instrument displays its own remote control enabling code 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 the instruments different enabling codes allows in this phase only the desired instrument to be programmed using the remote control without the risk of interference The instrument enabled for programming from the remote control will display the reading alternating with the message rCt This status is called Level 0 Once having entered programming mode from the remote control Pressing PRG for 5 seconds exits programming mode from the remote control saving the changes made Pressing EXIT exits programming mode from the remote control without saving the changes made code 030220371 preliminary version dated 8 08 03 powercompact 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
60. from where it left OFF and thus in practice the timer relating to the duration of the continuous cycle cc is put on hold when the door is opened and starts again when the door closes 4 6 4 End of the continuous cycle The continuous cycle ends in the following situations Pressing the button for more than 5 seconds The minimum temperature envisaged is reached AL Immediate or delayed alarm from external digital input A4 5 A9 The maximum duration of the continuous cycle elapses cc Instrument switched OFF from the keypad or supervisor Changeover from Direct or Direct with defrost operating mode to Reverse cycle mode heating by setting parameter r3 or from digital input A4 and A5 e High condenser temperature alarm CHt The low temperature alarm is ignored for a set time c6 from the end of the continuous cycle code 030220371 preliminary version dated 8 08 03 11 powercompact 4 6 5 Management of the light 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 the 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 When the
61. g Re n e e e eee cni eee ee e e rh 54 code 4030220371 preliminary version dated 8 08 03 powercompact code 030220371 preliminary version dated 8 08 03 powercompact 1 powercompact user interface 1 1 Display andicons O COMPRESSOR ON when the compressor starts Flashes when the activation of the compressor is prevented due to external disabling or procedures in progress FAN ON when the fan starts Flashes when the activation of the fan is prevented due to external disabling or procedures in progress i DEFROST ON when the defrost is activated Flashes whensthe activation of the defrost is prevented due to external disabling or procedures in progress 2 AUX AUX ON when the auxiliary output 1 and or 2 selected as AUX is activated 3 ALARM ON following pre activation of the delayed external digital input alarm Flashes in the event of alarms during normal operation e g high low temperature or in the event of alarms from an external digital input immediate or delayed CLOCK ON if at least one timed defrost has been set On start up comes ON for a few seconds to indicate that the Real Time Clock is present 5 LIGHT ON when the auxiliary output 1 and or 2 selected as the LIGHT is activated A SERVICE Flashes in the event of malfunctions for example E7PROM errors or probe faults DISPLAY Displays the temperature in the range 50 to 150 C The temperature
62. h defrost control cooling r3 1 Direct thermostat cooling r3 2 Reverse cycle thermostat heating Also see the description of parameters A4 A5 and A9 Notes 1 with r3 1 and r3 2 the defrosts are always disabled 2 adigital input set for direct reverse cycle control has priority over the operating mode parameter Remember that in Reverse cycle operation the differential is to the left of the set point as shown in the following figure REVERSE Caldo Heating rd ON Attuatore R Actuator OFF Set Point Default r3 0 gt Direct thermostat operation with defrost control code 030220371 preliminary version dated 8 08 03 18 powercompact r4 Automatic variation of the set point in night time operation This parameter is part of the group relating to the control of the curtain switch together with A4 A5 and A9 programmable by configuring the digital inputs When the curtain is closed and as a consequence the digital input connected to the curtain switch is closed the controller automatically increases the set point by the value assigned to r4 Default r4 3 0 r5 Enable minimum and maximum temperature monitoring 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
63. he pump down valve open and the compressor operating The low pressure alarm signal is nonetheless delayed by the time set for the parameter A7 The 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 the compressor autostart cycle in pump down The low pressure alarm stops the compressor while the pump down valve remains open The low pressure alarm is reset automatically The low pressure alarm can be reset in any situation code 4030220371 preliminary version dated 8 08 03 10 powercompact 4 6 Continuous cycle Pressing for more than 5 seconds activates the continuous cycle function During continuous cycle operation 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 the 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 temperature envisaged corresponding to the minimum temperature alarm threshold AL If the temperature after the end of the continuous cycle falls due to 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
64. hing close the door If after being closed for the first time the door remains closed for a time greater than d8 the controller restarts normal operation e compressor and fan ON if requested e light OFF e the temperature alarms are enabled If after the door is closed for the first time the light is switched off manually the controller restarts normal operation e compressor and fan ON if requested e light OFF e the temperature alarms are enabled Note If the light was previously switched on manually when the door is closed the second time it is automatically switched off Warning even when the fan is managed by the fan controller see the family of F parameters the fans are stopped when the door is open This algorithm resolves any problems relating to faults or malfunctions of the door switch Door switch zr 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 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 When the controller is OFF e The temperature is displayed alternating with the message OFF e The internal timer relating to parameter dI is updated If dI expires when the unit is OFF a defrost is performed when switched on e The auxiliary relays set as AUX
65. iable for 1 minute to tell the printer interface to request the printing of the report the display will display the message Prt for 1 second The interface once the request has been received will read the parameter HPr and once having determined the print profile will print the report relating to the controller in question If the printer is busy the request will be put in a print queue and will be completed as soon as the printer is ready 3 4 Models The following is a summary of the functions relating to the various models of controller Model M thermometer e display temperature e display second probe with external contact Model S static units with defrost by stopping the compressor e direct and reverse cycle compressor control e defrost by stopping the compressor e continuous cycle Model Y static units with electric heater or hot gas defrost e direct and reverse cycle compressor control e electric heater or hot gas defrost powercompact code 4030220371 preliminary version dated 8 08 03 4 powercompact continuous cycle Model F ventilated units with electric heater or hot gas defrost direct and reverse cycle compressor control electric heater or hot gas defrost evaporator fan control continuous cycle 4 Description of the software functions The controllers can be fitted with a maximum of two auxiliary relays The associated functions are the following alarm output normally open
66. ing to dark the sensor is located 1n the door stop and thus will be covered 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 5s so as to avoid rapidly successive impulses of the light relay To select this operating mode set AF 0 code 030220371 preliminary version dated 8 08 03 33 powercompact In the second case the light sensor signals the opening of the door on the cold room or the cabinet due to the outside light that the sensor detects At this point the instrument will switch on 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 A fter the 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 OFF Otherwise if the sensor signals light the door must be open and the light will be switched back on To select this operating mode set AF gt 0 The table below summarises the functions available for the digital input by setting the value of the variable A4 Value 4 Meaning Operation 0 input not active 1 immediate external alarm Contact open alarm active 2 delayed external alarm Contact open alarm active Delay see parameter A7 3 for other models for other m
67. ion against electric shock to be integrated in Class I and II devices Software class and structure Class A Cleaning of instrument front panel only use neutral detergents and water Serial interface per Carel network External available on all models Interface for repeater display External available on model with H and 0 power supply Programming key Available on all models code 4030220371 preliminary version dated 8 08 03 53 powercompact 9 3 powercompact connections The following are the connections for the assembly of the powercompact TO CAREL NETWORK SERIAL INTERFACE PBOOSOEAOOIPBOOSOEA10 Auxiliary Output Digital Input 1 Digital Input 2 Power Supply 230 Vac N TO CAREL NETWORK SERIAL INTERFACE PBOOYOENOOIPBOOYOEN10 Digital Input 1 Digital Input 2 Power Supply 230 Vac N code 4030220371 preliminary version dated 8 08 03 54 powercompact TO CAREL NETWORK INTERFACE PBOOFOENOOIPBOOFOEN10 Digital Input 1 Digital Input 2 Power Supply 230 Vac N TO REMOTE DISPLAY TO CAREL NETWORK SERIAL INTERFACE PBOOFOHAOOIPBOOFOHA10 REMOTE DISPLAY Digital Input 1 Digital Input 2 Auxiliary Output Power Supply 115 230 code 030220371 preliminary version dated 8 08 03 55 powercompact TO REMOTE DISPLAY TO CAREL NETWORK SERIAL INTERFACE
68. is activated by setting parameter c7 pump down duration to any value other than zero The pump down valve must be connected to one of the auxiliary outputs by setting the corresponding parameter H1 H5 as the pump down valve output In addition one of the digital inputs A4 A5 or A9 must be set as a low pressure input 4 5 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 gas refrigerant at the compressor intake 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 the low pressure switch measures a low pressure val e At this point the compressor is stopped If the low pressure value is not read in a time less than c7 from the closing of the pump down valve the compressor is stopped and the error Pd is signalled pump down ended by timeout If no input has been configured as the low pressure input the pump down function will always end by timeout The alarm Pd is reset automatically and will be reset when the following pump down procedure ends correctly Parameter c10 can be used to select pump down by time In this case after the valve closes the compressor operates for the time c7 After this time the compressor is stopped irrespective of the status of the low p
69. it 1 1 Dairy IR32 2 __ 1632 5 1 Meat IRMPX 7 1 Frozen IR32 Phase 2 semi automatic assignment of the addresses At this point the controllers to be included in the network must be added The program runs the automatic address assignment procedure In this phase the program sends in network the command lt STX gt lt padr gt lt gt lt padr_new gt lt ETX gt lt chkh gt lt chkl gt Where lt padr gt 0 so that command is received by all the controllers This is performed only by the controllers that are in address assignment status When receiving the command controller e savesthemew serial address e sends the response packet to the PC e displays the address received and exits the address assignment procedure The command received from an instrument with lt padr gt lt gt 0 assigns the new value contained in lt new for the serial address The response to the PC is the same as the request for the software version lt gt lt STX gt lt padr gt lt V gt lt Peripheral ID Bios Code gt lt ETX gt lt chkh gt lt chkl gt In this way the program on the PC automatically updates the table with the type of unit The user needs to have noted the correspondence between the address assigned by the semi automatic procedure and the description of the controller Example Address Description of unit 1 1 Dai
70. ition Interval between defrosts dI 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 request signal is generated Interval between defrosts dI finished with skip defrost Depending on enabling status At the expiry of the interval algorithm On start up Depending on enabling status On start up 45 Digital input Always When the defrost request signal is generated Supervisor Always oo Keypad Always os eee Implementation of the defrost depending on the 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 if parameter r3 is set to 1 direct 2 reverse the defrost is never performed 4 3 2 Defrost request status This status exists when one of the events that activates the defrost is present however the defrost cannot be started It will therefore stay pending for the following reasons e Compressor and fan start delay on start up 0 Compressor protection times cl c2 c3 Low pressure alarm only with hot gas defrost Continuous cycle running Pump down procedure running Defrost delay on start up d5 Defrost delay from digital input configured as start defrost or enable defrost d5
71. mediate alarm from external contact A flashing active active automatic delayed alarm from external contact automatic defrost running automatic defrost on evaporator 1 ended by timeout automatic defrost on evaporator 2 ended by timeout SN flashing active active automatic maximum pump down time alarm A flashing active active automatic low pressure alarm flashing active active automatic autostart in pump down OFF OFF automatic high condenser temperature pre alarm active active manual high condenser temperature alarm active active automatic door open too long alarm automatic real time clock fault A flashing automatic EEPROM error unit parameters A flashing automatic EEPROM error operating parameters e flashing automatic HACCP alarm HA e flashing automatic HACCP alarm HF instrument enabled for programming from the remote control automatic address assignment procedure in progress No automatic No automatic No automatic printing report 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 request dFE Signal end defrost request ON Signal switch to ON
72. mp down time the compressor stops and the alarm Pd is activated The Pd alarm disables the compressor autostart function see parameter c9 with the pump down valve closed upon the high pressure request from the pressure switch When the Pd alarm is signalled 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 The low pressure is monitored by connecting the low pressure switch to one of the two digital inputs and setting the parameter A4 AS or 9 If the parameter is set to 0 pump down operation is disabled If pump down by time is selected c10 1 When reaching the compressor operating time c7 after the opening of the valve the compressor is stopped irrespective of the low pressure reading The Pd alarm is deactivated Default c7 0 gt Pump down disabled c8 Start compressor delay after opening of PD valve This parameter determines after howanany seconds from the opening of the pump down valve the compressor starts and is useful to avoid activating the LP alarm unnecessarily The low pressure alarm LP occurs when with the valve open and compressor ON the low pressure signal is sent by the pressure switch The low pressure alarm stops the compressor The low pressure alarm is re
73. mperature read Minimum temperature read Comp and fan start delay on start up Minimum time between successive starts Minimut compressor OFF time Minimum compressor ON time Duty setting Continuous cycle duration Alarm bypass after continuous cycle Maximum pump down time Comp start delay after open PD valve Enable autostart function in PD Select pump down by time or pressure Type of defrost Interval between defrosts End defrost temperature main evap End defrost temperature aux evap Maximum defrost duration main evap Maximum defrost duration aux evap Defrost start delay Enable defrost on start up Defrost delay on start up Display on hold during defrost Dripping time after defrost Alarm bypass after defrost Defrost priority over compressor protectors Display defrost probe Display defrost probe Time base for defrost Compressor running time code 4030220371 preliminary version dated 8 08 03 46 MSY MSYF MSYF MSYF MSYF MSYF MSYF MSYF MSYF MSYF MSYF MSYF MSYF MSYF MSYF MSYF MSYF MSYF SYF SYF SYF SYF SYF MSYF MSYF MSYF MSYF SYF SYF SYF SYF SYF SYF SYF SYF SYF SYF SYF YF SYF YF YF SYF SYF SYF SYF SYF SYF SYF SYF SYF M YF M YF SYF SYF uom Def Max Min e C F 0 0 r2 rl 22 199 0 4 15 1 0 15 0 C 0 100 0 flag C 0 1 0 flag 0 1 0 C 1 6 1 0 6 0
74. n at least one of the inputs is open A4 4 Start defrost from external contact This funetion used to start the defrost from the 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 by the digital input by the supervisor and from the keypad This function is useful to run real time defrosts To do this simply connect a mechanical or electronic timer to the digital input select A4 4 if the input chosen is ID1 or alternatively A5 4 if the input chosen is 102 When the contact of the timer closes the defrost request is sent As described in the description of parameter d5 a series of units can also 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 timer the best solution is to insulate all the contacts galvanically inserting an intermediate relay for each contact code 030220371 preliminary version dated 8 08 03 30 powercompact Setting a different value for d5 on each unit will avoid simultaneous defrosts t ati timer defrost 1 45 2 defrost 4 dP 2 unit 2 45 3 defrost dP 3 unit 3 defrost request Key t impulse from the timer to start the defrost the minimum duration allowed is 0 5 seconds dP 1 maximum defrost duration uni
75. nal that the desired functions cannot be performed Phase 4 generation of the tables Once the network has been configured the following files are generated automatically e driver ini defining the communication parameters on a special screen e driver cct e for PlantVisor e description of the network including the communication parameters code 4030220371 preliminary version dated 8 08 03 5 9 Electrical specifications and connections 9 1 9 2 powercompact hardware layout powercompact electrical specifications powercompact Model Voltage Power E 230 Vac 10 15 50 60 Hz 3 VA A 115 Vac 10 15 50 60 Hz 3 VA H 115 230 Vac 10 15 50 60Hz 6 VA Bower supply 12 Vac 10 15 50 60 Hz 4VA 0 12 Vdc min 12 Vdc max 18 Vdc Transformer TRADR4W012 315 mA slow blow fuse in the secondary reinforced insulation from very low voltage parts 6 mm in air 84mm on surface 3750 V insulation primary UR ne insulation from relay outputs 3 mm in air 4 mm on surface 1250 insulation power supply IV Wit insulation from very low voltage parts 4 Es ywi 0 primary insulation from relay outputs 3 mm in air 4 mm on surface 1250 V insulation 51 NTC or PTC depending on the model 52 or depending on the model DII voltage fr
76. nd 2 SYF 102 143 Defrost time band 3 SYF 103 184 Defrost time band 4 SYF 104 45 Defrost time band 5 SYF C 105 td6 Defrost time band 6 SYF C 106 td7 Defrost time band 7 SYF 107 td8 Defrost time band 8 SYF 108 date time setting MSYF td1 td8 Defrost time band 1 8 These parameters can be used to set up to 8 defrost events in reference to the system clock To display and set or modify one of the events access one of the parameters between 41 and 148 and then press Pressing enters a submenu in which the button be used to display and set the day hour and minutes of the defrost event in the example below day 8 from the Monday to Friday hours 23 minutes 57 dog 7 123 2 dog L To modify the day hour or minutes of the event access the desired parameter by pressing the button and then press set to modify the value When pressing gt the letter identifying the parameter disappears and the value can no longer be increased or decreased using 8 2 The parameter 4 _ gt sets the day of the event as follows d_ 0 gt event disabled d__ 1 7 gt Monday Sunday d_ 8 gt from Monday to Friday d_ 9 gt from Monday to Saturday 7 10 gt Saturday and Sunday d_ 11 all days When h 0 23
77. nfluence Default dH 50 code 030220371 preliminary version dated 8 08 03 27 powercompact 5 5 Alarm management parameters No Code Parameter MSYF Def Max Min 60 A0 Alarm and fan differential MSYF C F C 2 0 20 0 1 61 Al Type of threshold AL and AH MSYF flag 0 1 0 62 AL Low temperature alarm threshold MSYF C F F 0 199 199 63 AH High temperature alarm threshold MSYF C F F 0 199 199 64 Ad Low and high temperature alarm delay MSYF min 120 199 0 65 A4 Digital input 1 configuration MSYF 0 11 0 66 AS Digital input 2 configuration MSYF 0 11 0 67 A6 Stop compressor from external alarm SYF min 0 100 0 68 A7 External alarm detection delay SYF min 0 199 0 69 A8 Enable alarms Edl and Ed2 SYF flag 0 1 0 70 A9 Digital input 3 configuration MSYF 0 11 0 71 Ac High condenser temperature alarm SYF C F 0 0 199 0 0 72 High condens temperature alarm delay SYF min 0 199 0 73 AE High condens temperature alarm SYF C F C 50 20 01 differential 74 AF Light sensor OFF time SYF sec C 0 255 0 Important warning for the set times to become immediately operational the instrument needs 10 be turned off and on again If the instrument is not turned off the times will become operational when next used during the setting of the internal timers A0 Alarm and fan differential This represents the differential used in the activation of
78. nt alarm that is HA or HF The HAn or HFn alarm event counter is increased and can reach a maximum value of 15 4 9 rH relative humidity The relative humidity percentage function is activated by pressing the rH button if enabled see parameter H6 on the MODIFIED keypad When the function is activated the display shows the message LrH for 1 second When the function is deactivated the display shows the message HrH for 1 second The rH function is used to dehumidify the air by always deactivating when the function is enabled the evaporator fan relay In fact the more slowly that the air passes through the evaporator the more it will be dehumidified In this case the icon is always OFF A practical example of the layout is as follows FAN RELAY e WIND 2 COMPRESSOR gt ix WIND 1 COMP RELAY POWER The fan features two windings and thus has two speeds If both windings are powered the fan operates at maximum speed In the application diagram above one winding is connected in parallel to the compressor and then will be powered when the compressor is started while the other winding is connected to the fan relay Normally the fan relay and the compressor relay are activated together and consequently the fan will operate at maximum speed If the rH function is activated the fan relay is always OFF one winding is consequently not powered and thus the
79. odels Enable Defrosts Contact closed gt Defrosts enabled 4 start defrost The defrost is enabled when the contact closes This can be used for real time defrosts 5 door switch with compressor and fans Contact open door open stopped When the door is open the compressor and the fans are stopped 6 remote ON OFF Contact closed ON If A4 6 and A5 6 the controller is ON with both contacts closed 7 curtain switch Contact closed Curtain lowered If the input is select d as a curtain switch the controller modifies the set point when the contact closes adding the value of parameter 14 low pressure switch input for pump down Contact open Low pressure door switch with fans only stopped Contact open door open When the door is open the fans are stopped 10 Direct Reverse operation Contact open Direct operation 11 Light sensor Above the threshold OFF Below the threshold hysteresis OFF Value 4 Function Function active Triangle ON 0 input not active 1 immediate external alarm open alarm open 2 delayed external alarm open alarm open 3 modelM selected probes open probe selected by parameter tI closed first probe enabled 3 other enable defrost closed enabled models 4 Start defrost closed defrost request 5 door switch with compressor and fans open door open stopped 6 remote ON OFF open instrument OFF 7 curtain switch close
80. odification of the parameters and the set point if the unit is accessible by the public The following possibilities are available Keypad function When the set point modification and parameter modification functions 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 Warnings If setting H2 2 or H2 3 from the remote control this is instantly disabled To re enable the remote control set H2 0 or H2 1 from the keypad 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 H4 0 buzzer enabled H4 1 buzzer disabled Default H4 0 gt buzzer enabled Available on all models code 030220371 preliminary version da
81. odified parameters used to select the instrument by entering NUMBERS ihe enabling code displayed code 030220371 preliminary version dated 8 08 03 powercompact On pressing the START button each instrument displays its own remote control enabling code 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 the instruments different enabling codes allows in this phase only the desired instrument to be programmed using the remote control without the risk of interference The instrument enabled for programming from the remote control will display the reading alternating with the message rCt This status is called Level 0 Once having entered programming mode from the remote control Pressing PRG MUTE for 5 seconds exits programming mode from the remote control saving the changes made Pressing EXIT exits programming mode from the remote control without saving the changes made 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 Function Start DEFROST Start and stop the d
82. on temperature below which the compressor 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 defrost This parameter is used to enable and disable the advanced defrost function as per the following table d12 Skip Defrost Automatic variation of dI 0 Disabled Disabled 1 Disabled Enabled 2 Enabled Disabled 3 Enabled Enabled 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 in reference to parameters and dP2 according to the following formulae dnl 100 dn dn2 dP2 100 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 Setting dH 0 the effective duration has no influence on the duration of the defrost interval Setting dH 100 obtains the maximum i
83. onents must be disposed of according to the local legislation standards in force powercompact CONTENTS 1 powercompactuser interface ceverrrrrrrerere ns 7 1 1 Display and icons s iure listelli oro 7 1 2 s bilia prave atit ined i ae ae ante 8 1 3 Procedure for displaying and deleting the HACCP alarms 10 2 Programming the instrumentS srserrrererereeereezecezere serene senese ceca ece ee nere nese nice ene neca nea zen eee ze cene siz aree nice eee neca zena 11 2 1 How to access the type F parameters i 11 22 How to access the type parameters i 11 2 3 Modifying the parameters snai 11 2 4 Saving the new values assigned to the parameters sess 12 2 5 Set np the Set polt d end Rp tte ti dts ade pir 12 2 6 Alarms with Manual ede eie t M edet edet een 12 2 7 Procedure for setting the default parameter values eee 12 2 8 Automatic serial address assignment eere enr nennen 13 CEN Vv Lg eo EU 14 3 1 Parameter copying Eee 14 3 2 Using the infrared remote control a 15 33 Hardware layout and using the printer enne tnn 4 3 4
84. or closed auxiliary output light output second evaporator output control output for pump down valve control output for condenser fans The controllers can be fitted with a maximum of three digital inputs alternatively three probe inputs The associated functions are the following immediate alarm delayed alarm select probe displayed model M enable defrost start defrost door switch with compressor and fan shutdown and management of the light remote ON OFF curtain switch with variation of the set point and management of the light low pressure alarm door switch with fan shutdown and management of the light direct reverse cycle selection The controllers can be fitted with a maximum of five probes three of which as alternatives to the digital inputs The following functions are associated with the probes room probe used in the calculation of the virtual control probe product probe used when fitted in the calculation of the virtual control probe defrost probe main or secondary evaporator condenser probe used when fitted for the control of the condenser fans Other functions that enhance the range of the refrigeration controllers include real time clock for the management of real time defrosts serial interface optional for connection to the Carel Supervision System interface optional for the connection of a repeater display 4 1 possibility of connection to a local printer for
85. ore than 5 seconds activates deactivates continuous cycle operation the messages ccb and ccE indicate respectively the start and end continuous cycle request set If pressed together with gt for more than 5 seconds starts the report printing procedure if the printer interface is connected to the controller If pressed for more than 5 seconds together with resets any active alarms with manual reset the message rES indicates that the alarm has been reset e LIGHT If pressed for more than 1 second activates deactivates auxiliary output 2 code 030220371 preliminary version dated 8 08 03 powercompact aux AUX If pressed for more than 1 second activates deactivates auxiliary output 1 DOWN DEF f pressed for more than 5 seconds activates deactivates a manual defrost the messages dFb and dFE indicate respectively the start and end defrost request gt SET If pressed for more than 1 second displays and or sets the set point If pressed for more than 5 seconds together with masl accesses the menu for setting the type parameters configuration If pressed together with for more than 5 seconds starts the report printing procedure if the controller is connected to the printer interface Note when the buttons are pressed a brief audible signal is emitted this signal cannot be disabled Normal operation Automatic Icon B
86. oth relay 4 and relay 5 code 030220371 preliminary version dated 8 08 03 relay relay relay relay relay 5 4 3 2 1 0 0 0 0 1 0 0 0 1 0 0 0 1 0 0 1 1 0 0 0 0 0 0 0 0 49 Icon powercompact 8 Supervisor The controller supports the Carel standard serial protocol version 3 0 8 1 Semi automatic procedure for assigning addresses in the Carel network The semi automatic procedure for assigning the addresses in the Carel network is performed using a program running on a PC that manages the various phases Phase 1 acquisition of network status If staring with a network that is already installed and new controllers are being added the status of the network must be acquired Obviously the new controllers in this phase will be excluded from the network The program on the PC will scan the Carel network interrogating all the possible addresses and recording those that are physically present The program also refers to the network description table saved at the end of the previous installation and then recovered regarding the addresses already assigned and their description and type Example Address Description Type of unit 1 1 Dairy IR32 5 1 Meat IRMPX 7 1 Frozen IR32 Any new controllers not present in the table will appear without description at the end of the scan The user can then add the description Example Address Description Type of un
87. out high condensing temperature pre alarm buzzer OFF and alarm relay no alarm status HACCP control generation of the defrost requests based on the defrost interval generation of the defrost requests based on the set time bands generation of the defrost requests based on the compressor running time if enabled generation of the defrost requests from digital input if enabled enable defrost from digital input if enabled direct reverse cycle operation from digital input if enabled While the following are enabled e modification and display of the frequent and configuration parameters and the set point ON OFF of auxiliary relay 1 set as LIGHT or AUX ON OFF of auxiliary relay 2 set as LIGHT or AUX selection of the probe displayed model M only door switch with compressor and fan shutdown limited to the management of the light remote ON OFF curtain switch limited to the management of the light door switch with fan shutdown only limited to the management of the light updating of the defrost interval timer dI Note In the OFF status the defrost interval dI is always updated so as to maintain the regularity of the interval If a defrost interval expires during the OFF status this event is saved and when controller is switched back ON a defrost request is generated The controller switches from ON to OFF with the following sequence e compressor protection times are observed e the pump down p
88. ply sum the values assigned to the functions that should be enabled Example enable SET button Aux button Light button 1 32 128 161 Parameter H6 Bit Mask Button Functions that can be enabled disabled 0 0x01 Report printing procedure 1 0x02 A Defrost 2 0x04 B Continuous cycle 3 0x08 22 4 0 10 T Enter HACCP 5 0 20 a Enable disable auxiliary output 6 0x40 ON OFF 7 0 80 Light ON OFF Table 1 Functions enabled disabled on the standard keypad code 030220371 preliminary version dated 8 08 03 40 powercompact Bit Functions that can beenabled disabled o DI o e 0x02 3 e CCP 2 0x04 B Continuous cycle 3 0x08 25 Mute 4 0x10 1 Light ON OFF 5 0x20 Enable disable auxiliary output 6 0x40 ON OFF 7 0x80 Relative humidity percentage Table 2 Functions enabled disabled on the modified keypad Default H6 0 gt all the buttons are enabled H7 Select keypad H7 0 gt Use the standard keypad H7 1 gt Use the MODIFIED keypad This parameter is used to select the type of keypad on the controller Two types of keypads are available STANDARD and MODIFIED The choice of the type of keypad determines whether the user can view the HACCP and rH relative humidity percentage
89. powercompact User manual LEGGI E CONSERVA gt QUESTE ISTRUZIONI READ AND SAVE THESE INSTRUCTIONS CAREL Tecnologia ed Evoluzione LEGGI E CONSERVA gt QUESTE ISTRUZIONI lt READ AND SAVE THESE INSTRUCTIONS We wish to save you time and money We can assure you that the thorough reading of this manual will guarantee correct installation and safe use of the product described IMPORTANT WARNINGS BEFORE INSTALLING OR HANDLING THE APPLIANCE PLEASE CAREFULLY READ AND FOLLOW THE INSTRUCTIONS DESCRIBED IN THIS MANUAL This instrument has been designed to operate without risks for the specific purpose only if Installation operation and maintenance are performed according to the instructions of this manual The environmental conditions and supply voltage fall within the values indicated here below Any different use or changes that have not been previously authorised by the manufacturer are considered improper Responsibility for injures or damage caused by improper use will lie exclusively with the user Warning voltage is present in some electrical components of this unit thus all the service or maintenance operations must be performed by expert and skilled personnel only aware of the necessary precautions to be taken Before accessing the internal parts disconnect the power supply Disposal of the parts of the controller The controller is made up of metal and plastic parts and a lithium battery All these comp
90. pt for when forced from the keypad manual defrost or from the digital input see parameter A4 or from the Real Time Clock Important To ensure regular defrosts the interval between defrosts must be greater than the maximum defrost duration plus the dripping time and post dripping time Note during the defrost the temperature alarms are disabled Default dI 8 hours code 030220371 preliminary version dated 8 08 03 23 powercompact dt1 End defrost temperature SET POINT main evaporator 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 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 e 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 e Ifthe 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 Default
91. quent power failures in the system In the event of a power failure the instrument resets the internal clock that calculates the interval between two defrosts starting from zero again 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 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 temperature 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 unit if selecting defrosts at start up after a power failure all the units will start a defrost This may cause voltage overloads To overcome this the parameter d5 can be used which adds a delay before the defrost the delay must obviously must be different for each unit Default d4 0 the instrument does not perform a defrost on start up d5 Defrost delay when the instrument is switched on or from multifunctiominput Represents the time that must elapse between the start up of the controller and the start of the defrost on start up e Ifthe 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 represents the delay between the enabling of the d
92. r so as to lower the temperature even below the set point cc 0 gt the continuous cycle is disabled The controller exits the continuous cycle procedure after the time set for parameter cc has elapsed or upon reaching the minimum temperature envisaged see the minimum temperature alarm parameter AL Default cc 4 hours code 030220371 preliminary version dated 8 08 03 21 powercompact c6 Alarm bypass after continuous cycle This is the time in hours that the temperature alarm is deactivated for after a continuous cycle If the temperature of the refrigeration unit after the continuous cycle falls due to inertia below the minimum temperature set point AL the activation of the low temperature alarm is delayed for the time c6 Warning remember that at the minimum temperature envisaged see the minimum temperature alarm parameter AL the continuous cycle is forced OFF and deactivated Default c6 2 hours 7 Maximum pump down time This parameter determines depending on the setting of parameter c10 the maximum time in minutes within 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 the event of pump down operation by time c10 1 If pump down by pressure is selected c10 0 When reaching the maximum pu
93. readings as follows Limitation of variation the maximum variation Slew rate of the value is limited so as to reduce impulsive disturbance if for example a maximum variation of 1 C were set forseach reading cycle when the measurement changes from 20 to 23 three cycles are required for the control value to be updated The following formulae are used tine pis ADS told if tsample gt told then trop toid tine else trop toid tinc where told is the temperature used by the controller before the current sampling lampe is the temperature measured in the current sampling thimit is the maximum temperature variation allowed calculated as 16 2 0 16 0 32 and variable from 0 48 to 2 72 trop this is the new temperature used for the next filtering Mobile average a mobile average is performed on the value used by the control based on the value The following formula is used thew tsample Rd trop tsample 2 where 2 is the coefficient that proportionally limits the variation in temperature limiting the influence of the new sample on the resulting value to between 7 and 100 lampe is the temperature measured in the current sampling Ds is the new temperature used for the next filtering The mobile average is used to limit the effect of any noise in the temperature reading that may negatively affect the control functions
94. ressing for more thai 1 second delete the HACCP alarm by pressing for more than 5 seconds the message indicates that the alarm has been deleted the HACCP LED stops flashing the HA and or HF signal is reset and the monitoring of HA is reinitialised _ delete the HACCP alarms and the alarms saved HAn HA HAI HA2 HFn HF HF1 HF2 by pressing amp and 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 alarms saved HAn HA HAI HA2 HFn HF HF 1 HF2 are reset and the monitoring of HA is reinitialised Normal operation can be resumed at any time by pressing for 3 seconds or waiting for the expiry of the session due to Timeout 60 seconds code 4030220371 preliminary version dated 8 08 03 powercompact 2 Programming the instruments The parameters can be modified using the front keypad The operating parameters are divided into two families frequent 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 21 How to access the type F parameters Press for more than 5 seconds if an alarm is active the buzzer is muted the display shows the code of the first modifiable type F parameter 2 2 How to access the type C paramete
95. ressure input The alarm Pd pump down ended by timeout is deactivated In this case the compressor autostart function in pump down is disabled 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 gas refrigerant to return to the compressor intake The compressor is started after the delay time c8 from the opening of the valve 4 5 3 Compressor autostart in pump down The parameter c9 is used enable the compressor autostart function in pump down 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 reaching the low pressure value The compressor autostart function considers the minimum OFF time c2 and the time between two starts cl while minimum ON time is ignored Consequently when reaching the low pressure value the compressor is stopped even the time c2 has not elapsed The activation of a compressor autostart cycle in pump down is signalled by the message ASt This message is reset automatically on the following correct pump down cycle 4 5 4 Low pressure alarm The low pressure alarm LP is signalled when the pressure switch signals a low pressure situation with t
96. rmarkets when the doors 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 temperature 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 update values Tdel Value of par 3 Display delay Tdel Timeout 0 Disabled 0 1 55 21 min 2 10 6 42 min 3 15s 64 min 4 20s 85 min 5 255 106 min 6 30s 127 min 7 40s 170 min 8 50s 212 min 9 60 s 255 min 10 75 5 319 min 11 90 s 382 min 12 105 5 446 min 13 120 s 510 min 14 150s 637 min 15 180s 765 min On the following page is the flow chart relating to the filtering performed on the value displayed based on the parameter 3 where Tdel gt Delay time between one update of the display and the next calculated based on the parameter 3 as per the previous table Tmeas gt Current temperature measured to be displayed Tdis gt Temperature displayed Tset gt Set point counter gt
97. rmed OFF OFF not performed EF no effect no effect no effect no effect no effect no effect HA no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect code 030220371 preliminary version dated 8 08 03 45 6 3 Summary of operating parameters UOM Unit of measure Def Default value No Code Parameter COND BIW 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 DD 53 54 55 St Pw 2 3 4 5 6 A2 A3 A4 cl 2 c3 c4 rd rl r2 r3 r4 r5 rH rL c0 cl c2 c3 c4 c6 c7 c8 c9 10 do dI dtl dt2 dP1 dP2 d3 d4 d5 d6 dd d8 d9 d 1 d 2 dC d10 Set point temperature password Measurement stability Probe display response Virtual probe Select C or F Decimal point Display on internal terminal Display on external terminal Select type of probe Configuration of probe 2 Configuration of probe 3 Configuration of probe 4 Calibration of probe 1 Calibration of probe 2 Calibration of probe 3 Calibration of probe 4 Control delta Minimum set point allowed Maximum set point allowed Operating mode Automatic night time set point variation Enable temperature monitoring Temperature monitoring interval Maximum te
98. rocedure is performed if enabled e the defrost is forced OFF and will not resume when switched back e 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 compressor protection times are observed e defrost on start up if enabled is not performed as this in fact refers to power up e compressor and fan delays on start up are not set code 030220371 preliminary version dated 8 08 03 6 powercompact 4 3 Defrost The parameter dC establishes the unit of measure for the times set by the parameters dI defrost interval and dP1 dP2 maximum defrost duration If one of the auxiliary relays 1 or 2 is selected as the auxiliary evaporator defrost output H1 H5 the defrost is performed at the same time on both evaporators present The parameter d 1 displays the defrost probe set for the main evaporator the first probe assigned as a defrost probe The 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 main or secondary evaporator the defrost will end by timeout after the periods dtl and dt2 4 3 1 Defrost events The following events activate the defrost function Event Implementation Cond
99. rs 23 5 5 Alarm management parameters iii iii 28 5 6 Evaporator fan 5 37 5 7 General configuration EE essen nnne nennen nee nenne nennen 38 5 8 HACCP alarm management DOllmeterSWe esesssssssseeeeeeneenenen nennen ere enne nne nne nee nennen ener 42 5 9 RTC and timed defrost management parameters sss eee enne 43 6 Tables of alarms and cro LL A A 44 6 1 Table of alarms and signals display buzzer and 1 44 6 2 Table of alarms and signals functions enabled disabled sse 45 6 3 Summary of operating parameters 7 AUX and Light buttons 8 E E E E E E E 8 1 Semi automatic procedure for assigning addresses in the Carel network sss 50 9 Electrical specifications and connections ssesssessesseeesessoscosesooseoseesseesoesessososoesossoossossesssesseesesossesossossesssesssesseosessesesse 52 9 1 powercompact hardware layOUt 52 9 2 puXSmompact electrical specifications rire nennen nnne nne E een 52 9 3 PONEO Mpa ct Connections see oer e e G
100. rs set 1 Press aA and P together for more than 5 seconds the display will show the number 00 2 Press until displaying the number 22 the code of the password allows access to the parameters set 3 Confirm by pressing 4 The display shows the code of the first modifiable type parameter 2 3 Modifying the parameters After having displayed the parameter either type or type proceed as follows Fig 1 and 2 1 Press until reaching the parameter to be modified when scrolling an icon appears on the display representing the category the parameter belongs to 2 Alternatively press for 1 second to display menu that is used to quickly access the group of parameters to be modified 3 Scroll the menu with the buttons the display shows the codes of the various categories of parameters see table 5 on the following page accompanied by the display of the corresponding icon if present set 4 Once having reached the desired category press to move directly to the first parameter in the category if there are no set visible parameters in the selected category pressing will have no effect 5 At this point continue to scroll the parameters until reaching the parameter to be modified or return to the Categories menu by pressing A for one second set 6 Press gt to display the associated value 7 Increase decrease
101. rument works in Direct mode while when the contact is closed it operates in Reverse mode A switch can therefore be connected to select according to the position heating or cooling operation Depending on the value of parameter 3 the following configurations are possible with r3 0 Contact open Direct operation with defrost control Contact closed Reverse operation with 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 Notes 1 if more than one digital input is configured for direct reverse operation the direct mode status occurs when at least one of the inputs is open 2 the status of the digital input selected for direct and reverse mode control has priority over the operating mode set using parameter r3 A4 11 Light sensor The digital input is used to read a light sensor in reality an analogue input from which a digital signal is taken using the unit light sensor threshold parameter The light sensor may be located e door stop e inside the cold room or cabinet In the first case the sensor signals the opening and the closing of the door with the open door corresponding to light and the closed door correspond
102. rval between defrosts SYF hours 8 199 0 Al dtl E temperature main LYF C F F 40 199 50 42 dg p defrost temperature aux YF C F F 40 199 50 4 dP1 SHE defrost duration main 30 199 1 44 pom defrost duration aux unn F 30 199 1 45 d3 Defrost start delay SYF Min F 0 199 0 46 d4 Enable defrost on start up SYF flag 0 1 0 47 45 Defrost delay on start up SYF min 0 199 0 48 d6 Display on hold during defrost SYF 1 2 0 49 Dripping time after defrost SYF min F 2 S 0 50 d8 Alarm bypass after defrost SYF hours F 1 15 0 51 49 Defrost priority over compressor SYF flag 0 1 0 protectors 50 d 1 Display defrost probe M YF Sis d 2 Display defrost probe M YF F 54 dC Time base for defrost SYF flag 0 1 0 55 410 Compressor running time SYF min F 0 199 0 56 dil Running time temperature SYF 10 2 20 threshold 57 412 Advanced defrost SYF F 0 3 0 58 dn Nominal defrost duration SYF 65 100 0 59 dH Proportional factor variat in dI SYF 50 100 0 Important warning for the set times to become immediately operational the instrument needs to be turned off and on again If the instrument is not turned off the times will become operational when next used during the setting of the internal timers d0 Type of defrost Establishes for the instruments fitted with defrost relays the type of defrost e d0 0 electric heater defrost by
103. ry IR32 2 1 Dairy 3 IR32 3 __ Dairy 2 PB 4 1 __ Meat 2 IRMPX 5 1 Meat IRMPX 7 1 Frozen IR32 At the end of the address assignment procedure the user can update the descriptions of the new controllers added code 030220371 preliminary version dated 8 08 03 50 powercompact The powercompact controllers can enter the address assignment status with the following sequence of operations e pressing SET and PRG MUTE for 5 seconds e setting the password 66 e pressing SET At this point the instrument will display the message Add When receiving the new address it will display the corresponding value for 5 seconds The address assignment procedure has a timeout of 60 seconds Phase 3 changing addresses The third phase allows the user to change the addresses assigned to the controllers The serial address of the controllers can be modified or exchanged To do this modify the serial address of the instruments using free addresses as temporary values Example Address Description Type of unit 1 1 Dairy IR32 2 1 __ 2 3 1 Dairy 3 1832 5 1 Meat IRMPX 6 __ Meat 2 IRMPX 7 1 Frozen IR32 For some controllers the addresses cannot be changed as the serial address 15 not modifiable via the supervisor or is set mechanically In this case the program will sig
104. ser fan outputs selected Not present Not generated Not generated ON Error Generated Generated ON code 4030220371 preliminary version dated 8 08 03 12 powercompact 4 8 HACCP Hazard Analysis and Critical Control Point The system manages two events HA alarm If the control temperature is greater than a threshold value for a certain time Where tr High temperature alarm threshold Ad Ad Temperature alarm delay Htd HACCP HA alarm delay HF alarm Power failure for an extended time gt 1 minute with the control temperature when power returns greater than tr When one or both the alarms occur the LED flashes and the display shows the alarm code in addition the alarm is saved to the and the alarm relay or buzzer if present is activated a Pressing amp powercompact for more than 5 seconds resets the LED the HA and or HF signal and reinitialises of the monitoring of the HA alarm Pressing a mutes the buzzer and deactivates the alarm relay if present The date and time of the last 3 HA and HF alarms can be displayed using the 6 parameters HA1 HA and HF HF1 2 When a new HA or HF alarm occurs the list of the last 3 alarms is updated with the less recent being deleted The new alarm can be displayed using the parameter that identifies the most rece
105. set automatically The parameter is active if c7 0 Default c8 10 gt 10 second delay c9 Enable autostart function with PD operation If the parameter is set to 0 the system will perform a pump down cycle each time the pump down valve closes 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 The autostart function is disabled if Pd alarms are active The parameter is active if c7 0 Default c9 0 gt only once pump down cycle is run when 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 closing of the valve the compressor works for the time c7 Once 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 is deactivated The compressor autostart function in pump down is deactivated Default c10 0 gt Pump down by pressure code 030220371 preliminary version dated 8 08 03 22 powercompact 5 4 Defrost management parameters No Code Parameter ico UOM Be Def Max Min 39 do Type of defrost YF flag 0 3 0 40 dI Inte
106. ss is a special procedure that allows using an application installed on a PC connected to the Carel network the addresses of all the instruments that include this feature connected to the Carel network to be managed simply The procedure is very simple 1 Using the remote application start the Network definition procedure the application sends a special message lt ADR gt across the network containing the network address 2 Pressing the button on keypad of the instrument connected to the network the instrument recognises the message sent by the remote application automatically setting the address to the required value and sending a message of confirmation 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 serial address assigned 3 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 sends the message lt ADR gt again 4 At this point the procedure starting from point 2 can be repeated on another unit connected to the network until defining all the network addresses Note once the address has been assigned to an instrument the operation for safety reasons 4s disabled on the same instrument for 1 min
107. ss to the following parameters e Temperature Defrost Continuous cycle Fans HACCP The following functions can also be controlled e Start defrost Continuous cycle Aux Light ON OFF Mute The remote control features the four buttons PRG MUTE SET UP and DOWN which access almost all the functions provided by the instrument keypad Nel telecomando standard sono riportati 1 4 tasti PRG MUTE SET UP e DOWN che rendono disponibili quasi tutte le funzioni fornite dalla tastiera dello strumento TEMPERATURA The buttons can be sub divided into three groups based on their functions I e Buttons for enabling and disabling the use of the remote control 5 e Buttons for remote simulation of the instrument e Buttons for the direct modification of the more commonly used parameters calibrazione allarmealtat allarme bassa t ritardo allarme modo ventole _ Cventole ventole e comp b 3 2 1 1 Activating and deactivating programming from the remote control Button Immediate function Delayed function used to enable the remote control each START instrument displays its own enabling code ends operation using the remote control EXIT cancelling all changes made to the parameters pressing and holding for 5s ends operation PRG used to display the configuration parameters using the remote control saving the m
108. st 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 4 4 2 Start defrost at intervals multiples of the predefined value dI calculated according to the duration of the previous defrost parameter d12 1 In this mode the duration of the defrost performed establishes whether the following defrost will be skipped or not The following parameters are associated with this function e d12 enable the function e nominal duration of the defrost in proportion to the set defrost timeout This mode is enabled by setting the parameter d12 1 or 412 3 The nominal defrost times dn1 and 2 are determined by the factor dn and by the defrost timeout values and dP2 according to the following relationships dnl un dbi dn2 n pj 100 100 The algorithm calculates the defrosts to be skipped e ifthe defrost ends in a time less than dn1 the counter of the defrosts to be skipped is increased by 1 The current value of the counter indicates the number of defrosts to be skipped e ifthe defrost ends normally the next defrost is performed as normal e lt 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 the defrost is performed the first 7 times without increasing the counter after which the counter can
109. t 1 d5 2 defrost delay from external contact for unit 2 this must be greater than dP 1 unless overlapping defrosts are required Similarly for d5 3 and dP 3 Note if more than one digital input is configured to start the defrost the defrost is started when at least one of the inputs closes 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 open with the light OFF or light ON Case 1 light OFF when opening the door If the door is opened with the light OFF e the compressor and the evaporator fans are switched off e the light is switched on only in the models fitted with at least 1 auxiliary relay programmed as the light output e the reading displayed flashestand the A icon flashes e the temperature alarms are disabled If the door remains open for a time greater than d8 the controller restarts normal operation e compressor and fan ON 4f requested light ON at least 1 auxiliary relay is selected as the light the reading flashes the buzzer and the alarm relay are activated the temperature alarms are enabled 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 respecting any protection times selected see the
110. t completed due to a serious error when Red LED on steady Data transfer error transferring or copying the data Repeat the operation if the problem persists check the key connections LEDs OFF Batteries disconnected Check batteries Note 1 At the start and the end of the UPLOAD and DOWNLOAD operations normal or extended the buzzer on the instrument will emit an acoustic 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 code 030220371 preliminary version dated 8 08 03 powercompact 3 2 Using the infrared remote control Description of the remote control STANDARD and COMPACT The remote control has been designed to assist the programming procedure allowing the rapid and simple setting of the more common parameters Two types of remote control are available STANDARD and COMPACT 3 2 1 STANDARD remote control The STANDARD remote control features 44 buttons and allows direct acce
111. t no effect no effect no effect no effect no effect no effect no effect no effect duty setting CA67 duty setting CA6 not performed no effect no effect not performed duty setting CA6 no effect duty setting 6 no effect not performed no effect no effect no effect not performed no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect OFF OFF not performed if hot gas no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect dor OFF no effect OFF no effect not performed if hot gas not performed if hot gas no effect no effect not performed no effect no effect no effect Etc no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect no effect Add no effect no effect no effect no effect no effect no effect Prt no effect no effect no effect no effect no effect no effect LrH no effect no effect no effect OFF no effect no effect no effect no effect no effect no effect no effect no effect EE OFF OFF not perfo
112. t 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 A4 8 Low pressure switch input for pump down Setting A4 8 is used to manage the low pressure switch 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 The low pressure alarm signal is nonetheless delayed by the time set for parameter AT This parameter together with parameters C7 C8 C9 H5 allows the management of the pump down algorithm Contact open gt low pressure Important If c7 0 pump down disabled the low pressure situation can still be detected Note 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 the option A4 5 with the difference 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 refrigeration or Reverse operation heating When the contact is open the inst
113. ted 8 08 03 37 powercompact F3 Fans in defrost This is used to decide if 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 envisaged 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 in minutes defined by the value of Fd This is useful to allow the evaporator to return to its operating temperature after defrosting 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 F0 0 when assigning 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 5 7 General configuration parameters No d Parameter pi UOM Def Max Min 80 HO Serial address MSYF 1 199 0 81 Function of relay 4 MSYF 1 6 0 82 H2 Disable keypad RC MSYF flag 1 3 0 83 H3 Remote control enabling code MSYF C 0 199 0 84 Disable
114. ted 8 08 03 39 powercompact HS Operating logic of output AUX2 relay 5 See the description of parameter Default H5 3 gt Light output Available on all models fitted with relay 5 H6 Lock keypad This is used to disable the functions assigned to the individual buttons Using the corresponding bits the functions relating to the individual buttons on the keypad can be enabled setting to 1 or disabled setting to 0 according to the following relationships IMPORTANT the functions disabled using parameter H6 are added to those disabled using parameter H2 e powercompact 7 6 5 4 3 2 1 0 0x80 0x40 0x20 0x10 0x08 0x04 0x02 0x01 STANDARD KEYPAD MODIFIED KEYPAD E SET BUTTON SET BUTTON DOWN DEF BUTTON l DOWN DEF BUTTON UP CC BUTTON UP CC BUTTON l PRG MUTE BUTTON PRG BUTTON HACCP BUTTON LIGHT BUTTON AUX BUTTON AUX BUTTON gt ON OFF BUTTON ON OFF BUTTON gt LIGHT BUTTON A rH BUTTON powercompact keypad Value Function Enable SET button 1 Down def button 2 Up cc button 4 Prg mute button 8 HACCP button 16 Aux button 32 ON OFF button 64 Light button 128 Total value of parameter H6 To calculate the value to be assigned to parameter H6 sim
115. temperature e d0 1 hot gas defrost by temperature e d0 2 electric heater defrost by time Edl and Ed not displayed e d0 3 hot gas defrost by time Ed1 and Ed not displayed For all models the defrost may be performed e by temperature using the defrost probe fitted on the evaporator In any case the defrost will be stopped after a maximum set safety time The alarms Ed1 and Ed2 end defrost due to maximum duration parameter A8 can be disabled e time without the defrost probe If the alarms Edl and Ed are not disabled when activated they can be deleted by pressing aA and gt together for more than 5 seconds The alarms Ed1 and Ed2 if present are deleted at the start of the following defrost Default 0 20 gt electric heater defrost by temperature dI Interval between defrosts The defrosts are performed periodically at an interval equal to the value of dI in hours or minutes see parameter dC The interval dI starts being counted from the start of the previous defrost The duration of the defrost therefore does not affect then the interval between defrosts The interval dI is cyclical and is also maintained when the controller is OFF If the interval dI expires when the controller is OFF when it is started again a defrost will be performed If dI 0 gt the defrost is never performed exce
116. the alarm reports 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 Press PRG for 2 seconds to per 2 seconds set the default values Second Display completely ON for No effect 2 seconds 6 In this phase the display of Third a a the clock indicates the BAR 5 presence of Fourth Normal operation Normal operation code 030220371 preliminary version dated 8 08 03 powercompact 4 2 Switching the controller off The unit can be switched OFF using the keypad the digital input or the supervisory system In this operating mode the display will be show the temperature selected for the parameter alternating with the message OFF Origin Priority Note Digital input Priority 1 Disables ON OFF from the keypad and supervisor Keypad Priority 2 Supervisor Priority 3 In the OFF status the following are disabled compressor control sopped and pump down valve closed defrost cyclical and manual fan control fan control for low relative humidity if enabled continuous cycle autostart of the pump down function if enabled condenser fan control if enabled all the alarms probe high and low temperature from external digital input low pfessure all the signals defrost time
117. the defrost procedure the display is controlled according to the setting of parameter d6 If during the defrost phase the opening of the door is detected by the external digital contact the compressor is stopped running the pump down procedure if enabled When the door closes the compressor resumes the status envisaged for the selected defrost procedure During the defrost the status of the fans is determined by setting of parameter 4 3 5 End defrost The defrost ends by temperature dt1 dt2 or by time dP1 dP2 according to the setting of parameter d0 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 the signal Ed1 or Ed 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 at the end 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 required by the defrost The defrost is ended prematurely in the following situations e changeover from Direct operating mode with defrost to Reverse cycle mode heating using paramet
118. the value with the buttons respectively until reaching the desired value set 8 Press gt to temporarily save he new value and return to the display of the parameter code 9 Repeat the operations from point 1 or point 2 set 10 If the parameter has sub parameters press to display the first sub parameter 11 Press to display all the sub parameters set 12 Press to display the associated value 13 Increase or decrease the value with the e or button respectively until reaching the desired value set 14 Press gt to temporarily save the new value and return to the display of the sub parameter code code 030220371 preliminary version dated 8 08 03 powercompact 15 Press A to return to the display of the parent parameter Category Parameters Message Icon Probe parameters Pro PN Control CH gt parameters i S amp Compressor 5 parameters 1 EME Defrost parameters q cee Ei Alarm parameters A ALM Fan parameters F FAn Configuration A parameters H configuration CnF AUX HASCE H HACCP parameters RTC parameters rtc rte Q Table xxxx Icons and abbreviations of the categories of parameters 2 4 Saving the new values assigned to the parameters To definitively save the new values of the modified parameters press for more than 5 seconds thus exiting the parameter
119. thout having to press the SET button for 5 seconds The clock is checked whenever the instrument is switched on and if erroneous values are found the clock is reset to Saturday 6 01 01 03 time 00 00 with the EtC error signalled To cancel the EtC error simply set the clock using the corresponding parameters Note If the EtC error appears and then the system is switched off the EtC error will not occur being corrected by the previous start up code 030220371 preliminary version dated 8 08 03 43 powercompact 6 Tables of alarms and signals 6 1 Table of alarms and signals display buzzer and relay The following table describes the alarms and signals on the controller with their description the status of the buzzer the alarm relay and the reset mode Code Icon on the display on E Buzzer Reset Description TE A flashing active active automatic virtual control probe fault EO A flashing OFF OFF automatic room probe 51 fault El A flashing OFF OFF automatic defrost probe S2 fault 2 A flashing OFF OFF automatic probe S3 fault A flashing OFF OFF automatic probe 54 fault 4 A flashing OFF OFF automatic probe 55 fault No OFF OFF automatic probe not enabled flashing active active automatic low temperature alarm A flashing active active automatic high temperature alarm A flashing active active automatic im
120. tion MSYF Stop compressor from external SYF alarm External alarm detection delay SYF Enable alarms Edl and Ed2 SYF Digital input 3 configuration MSYF High condenser temperature SYF alarm High condens temperature alarm SYF differential High condens temperature alarm SYF delay Light sensor OFF time SYF Fan management F Fan start temperature F Fan OFF with compressor OFF F Fans in defrost F Fan OFF after dripping F Serial address MSYF Function of relay 4 MSYF Disable keypad RC MSYF Remote control enabling code MSYF Disable buzzer MSYF Function of relay 5 MSYF Lock keypad MSYF Select keypad MSYF Print profile MSYF Number of HA events recorded MSYF Date time of last HA event Year Month Day Hour Minutes Duration Date time of penultimate HA event Year Month Day Hour Minutes Duration Date time of third to last HA event Year Month Day Hour Minutes Duration Number of HF events recorded MSYF Date time of last HF event ix Year Month code 030220371 preliminary version dated 8 08 03 47 C F flag C F C F min min min flag C F C F min sec flag flag flag flag flag flag flag Qon Ao QOonano 20 100 100 20 199 199 250 11 11 100 250 11 200 20 250 250 200 powercompact
121. tion on the auxiliary evaporator in minutes or seconds see parameter dC if defrost by temperature is selected If timed defrost has been selected this represents the actual duration of the defrost Default dP2 30 minutes d3 Start defrost 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 reversing valve The delay d3 is useful in the electric heater defrost in special applications see the paragraph Description of the software functions Default d3 0 minutes code 030220371 preliminary version dated 8 08 03 24 powercompact d4 Defrost when the instrument is switched on Activates a defrost when the instrument is switched on Warning the defrost request on start up 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 instrument is switched on may be useful in special situations Example there are fre
122. unit of measure degrees centigrade or degrees Fahrenheit 5 0 to work in degrees centigrade 5 1 to work in degrees Fahrenheit Changes from one unit of measure to the other 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 only refers to the display of the reading on the main and remote displays the parameters are always set to the tenth of a degree 6 0 the readings are displayed to the tenth of a degree 6 1 the readings are displayed without the tenths of a degree Default 6 0 gt decimal point displayed tP Probe displayed on internal terminal Selects the probe to be displayed by the instrument 1 gt Virtual probe AT 2 gt Probe 1 3 gt Probe 2 4 gt Probe 3 5 gt Probe 4 A76 gt Not selected Warnings e Control is always based on the virtual control probe e Ifthe probe to be displayed has not been enabled the display will show the message Default 1 gt Virtual probe code 4030220371 preliminary version dated 8 08 03 16 tE Probe displayed on external terminal Selects the probe to be displayed on the remote terminal 0 gt Remote terminal not present tE 1 gt Virtual probe
123. ute preventing a different address from being assigned to the instrument in this period code 030220371 preliminary version dated 8 08 03 powercompact 3 Accessories 3 4 Parameter copying key The programming key for Carel controllers code 00 is used to copy the complete set of parameters on the Carel powercompact The key must be connected to the connector 4 pin AMP fitted on the compatible controllers and works even without switching the controller on as indicated in the instructions for the controller NOTE PJOPZKEY00 is used ONLY for the PJ controllers PSOPZKEY00 is used ONLY for the powercompact IR33 Two functions are available selected using the two dipswitches present these can be accessed by removing the battery cover e Load the parameters from a controller to the key UPLOAD e Copy from the key to a controller DOWNLOAD e Extended copy from the key to a controller EXTENDED DOWNLOAD Warning The parameters can only be copied between instruments with the same code The upload operation can however always be performed In the specific case of the powercompact controllers the following procedure is used to copy and download the parameters 3 1 1 Copying and downloading the parameters The following operations are used for UPLOAD and or DOWNLOAD or EXTENDED DOWNLOAD functions simply changing the settings of the dipswitches to change the function OFF OFF ON OFF ON EXTENDED
124. utton Pressing the button alone Pressing together with other Start up address buttons assignment request Enters the menu to display and delete the HACCP alarms If pressed for more than 5 seconds 9 i cal switches the controller ON OFF FA SET If pressed for more than 5 If pressed for elia seconds together with SET accesses more than 5 If pressed for esses the meii for setting the 6 the menu for setting the type seconds on start more than 1 5 typ parameters configuration up activates the second enters the 7 F parameters fr nt zz PRG MUTE p Segre er ene procedure for automatic UP CC If pressed for more than 5 setting the address dino He audible alarm buzzer seconds together with UP CC resets default assignment and deactivates the alarm relay any active alarms with manual parameter procedure reset SET If pressed for more than 5 seconds together with SET starts the report printing procedure if the printer interface is connected to If pressed for more than 5 seconds the controller activates deactivates continuous cycle PRG MUTE If pressed for more than 5 seconds together with PRG MUTE resets any active alarms with manual reset If pressed for more than second activates deactivates the auxiliary output 2 If pressed for more than second activates deactivates auxiliary output 1 defrost PRG MUTE If pressed for more than 5 s
125. y returns to normal when the control temperature reaches the set point is less than the value displayed 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 Default d6 1 gt during the defrost the last temperature read before the start of the cycle remains on the display dd Dripping time This parameter is used to stop the compressor and the evaporator fans after a defrost so as to allow the evaporator to drip The value of the parameter indicates the minutes that the devices remain OFF for 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 code 030220371 preliminary version dated 8 08 03 25 powercompact d8 Alarm bypass time after defrost and or door open Indicates the time that the high temperature alarm signal is ignored for after the end of a defrost cycle or when the door to the cold room is opened if the Multifunction input is connected to the door switch see parameter A4 5 A9 Default d8 1 hour bypass d9 Defrost priority over compressor protectors Ignores the compressor protection times at the start of the defrost Compressor protection times e cl minimum time between 2 successive starts e c2 minimum OFF time

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