DRR132 USER MANUAL
Contents
1. Selects type of contact for digital input activation oc Open Contact Cc Closed Contact Default 51 Digital Input 2 Output Off oo NONE door leer input activation EAU selects outputs to be switched off during digital PSAL LEER in case of pressure alarm selects outputs to be switched off excluded the compressor that is stopped None Default FHA CHIA FAco T LL All Fan Compressor Fan and Compressor Digital Input 2 Temperature ic A door 2 so that option selected on parameter wk E to be surpassed don restart also with active digital input determinates threshold SET 0 0 50 0 C F Default 0 0 C deactivation Selecting 0 control will not be done Selected options restart with digital input dl ee u Digital Input 2 Time f done Selected cr doo T Max deactivation time for outputs selected on parameter options restart with digital input deactivation Er E H L delay between digital input activation and signaling Der don with active digital input Selecting 0 control will not be PSH L break time to calculate number of pressure switch activations 0 120 minutes Default 0 minutes2. bd Be 22 21 20 fag ira 17 fae 15 14 13 wae t y aE teat VE Ep Eb 4 2 3 4 5 fe AR 7 iid SET FAN ger 1 12 DRR132 USER MANUAL 5 2 Defrosting Two defrosting types are available electrical compressor stops or hot gas compressor continues functioning Other programmable functions are included defrosting frequency time counting type end defrosting temperature if the probe 2 is enabled and max defrosting time When defrosting ends drainage is managed 5 3 Evaporator fans During compressor functioning or defrosting cycle it is possible to set fans status by parameter Moreover there is the possibility to select temperature above which the fan switches off and the delay time for start up after a defrosting 6 Front panel Key Description Press to visualize setpoint Press for 3 to enter password 1234 and start configuration When entering password next digit flashes Pressed during configuration allows to save parameters and esc procedure parameter Controls light relay switch on switch off if enabled by parameter During setpoint visualization allows to modify setpoint value In configuration mode scrolls parameters If pressed with modifies visualized 1 General description DRR132 is a digital controller designed to control cooling HVAC systems Available models a
3. 23 IF H Defrost Block Cell 10 60 C F OC Selects cell temperature over that defrosting doesn t starts Default 10 C 24 dF bE Defrost Block Evaporator i 10 50 C F A L Selects evaporator temperature over that defrosting doesn t starts Default 4 C gt ENE Defrost Max Time Defrosting duration time 1 120 minutes Default 30 minutes 26 Defrost End Temperature 40 210 C F d HER End defrosting temperature Default 8 C 27 Defrost Start up dEFSu Allows or not defrosting at device start up Na default BES 2 dFu d Defrost visualization Selects display visualization during defrosting Cc EE Real Temperature Default Ebd F Temperature Before Defrost SEE Geer DEF label Setpoint Fuel Defrost Visualization Delay Selects time to be elapsed from defrosting end before allowing display to visualize real cell temperature 0 120 minutes Default 0 minutes Eck Drainage Time Selects compressor and fan lock duration after a defrosting 0 120 minutes Default 0 minutes FANS N Display Parameter description Entering range 31 E REE Fan End Temperature 40 210 C F Temperature above which the fans switch off referred to evaporator probe Default 2 C 32 F AH y Fan Hysteresis 0 5 50 0 C
4. A Po Aux 1 Polarity deactivation type excluded ligh functioning Selects AUX1 output contact type Mo Normally Open Default MC Normally Closed 59 1 Aux 1 Disabling H id A lc E AL d d O LO E Alarm Off Output deactivates when alarm conditions disappears If J gt IM Um selects AUX1 outuput Default FEY Key Output deactivates pressing a key R2CF Aux 2 Configuration Selects AUX2 ouptut functioning dS on cP HAn DEE AL dini ding BEEP Disabled Default On Always On with device switched on Compressor On with active compressor Fan On with active fans Defrost On with active defrosting Alarm On with active alarm Digital Input 1 On with active digital input 1 signaling Digital Input 2 On with active digital input 2 signaling Beeper HoPo Aux 2 Polarity deactivation excluded light functioning Selects AUX2 output contact type NO Normally Open Default Nc Normally Closed 62 Aux 2 Disabling Hada He E Al d d O LO E Alarm Off Output deactivates when alarm conditions disappears If EP L M i E Um selects output AUX 2 Default EES Key Output deactivates pressing a key
5. BEEP Beeper ech BEEF selects beeper operating mode FEY HE FEAL Default Key Beep during key pressure Alarm Active in case of alarm Key and Alarm Beep during key pressure and active in case of alarm SERIALE N Display Parameter description Entering range bdreEl Baud Rate Serial communication Baud Rate 48 4800 bit s gb 9600 bit s Je E 19200 bit s Default E mim E 28800 bit s J mk 38400 bit s 5 Ib H 57600 bit s BEJE Answer delay for serial communication 65 Sl A d Slave Address 1 254 L Device serial address Default 254 Serial delay 0 100 ms Default 10 ms 10 Serial communication DRR132 is provided with RS485 and can receive broadcast data via MODBUS RTU protocol Device can be configured only as Slave This function allows to control multiple controllers connected to a supervisory system RS485 line has to be free from LT termination resistances to avoid malfunctioning Each instrument will answer to a Master query only if contains same address as on parameter SLAd with the same address on the same line Address 255 can be used by the Master to communicate with Allowed addresses are from 1 to 254 and there should not be controllers all connected equipm
6. 54 AS igital Input 2 Pressure Switch Number CEA PSA L max pressure switch activations during wE l time before alarm signaling 1 15 activations Default 2 activations LIGHT N Display Parameter description Entering range LBERF Light Key configuring CF e Eco EE y HEEE u d IM i or d ine it is possible to select AUX 1 or AUX 2 as light command This parameter allows or not to command light output by keyboard dS En Disabled Default Enabled 56 I gs Light Max Time 0 120 minutes If 0 output has to be deactivated manually by keyboard or by digital input El L Selects max time for light output activation Default O minutes USCITE N Display Parameter description Entering range 57 1 Aux 1 Configuration A LC F Selects AUX1 ouptut functioning d 5 Disabled Default on cP FHn DER AL dint d ine On Always On with device switched on Compressor On with active compressor Fan On with active fans Defrost On with active defrosting Alarm On with active alarm Digital Input 1 On with active digital input 1 signaling Digital Input 2 On with active digital input 2 signaling
7. F Selects histeresys for fans intervention threshold calculation Default 2 0 C FAJE Fan Delay Delay time for fans activation after defrosting 0 120 minutes Default 10 minutes FAdd Fan Disable Defrost Locks fans during defrosting no YES default dd Heca ee ck compressor is off O H F on default ALARMS N Display Parameter description Entering range ALEY Alarm Type I Selects type of alarm related to parameters uPA L and E oH Ly g H E Deviation Alarm Alarm intervention thresholds are determinated by the l expression SET L PA L and SET L oH L A A E Absolute Alarm Alarm intervention thresholds are determinated by parameters PA L and L oH L Default limit will be exceeded The threshold depends on parameter LE 4 A 37 PAL Upper Alarm Enter the temperature threshold which will activate visual alarm signal if its upper 40 210 C F LU E y Default 5 C limit will be exceeded The threshold depends on parameter L 38 L AL Lower Alarm Enter the temperature threshold which will activate visual alarm signal if its lower 40 210 C F oO l Default 5 C ALHY Alarm Hysteresis Selects hysteresis into alarm
8. intervention threshold calculation 0 5 50 0 C F Default 2 0 C ALEA Temperature Alarm Delay Selects alarm activation delay 0 120 minutes Default 10 minutes Aldd Selects alarm exclusion time after a defrosting 41 Ad Alarm Delay Start up 0 10 hours Selects alarm exclusion time after device start up Default 2 hours Alarm Delay Defrost 0 10 ore Default 1 hours DIGITAL INPUT N Display Parameter description Entering range 43 1 Digital Input 1Configuration Disabled Default LE Selects digital input operating mode mj 15 do or Door With active input display visualizes doAL Door Alarm With open port high low temperature alarms are disabled E HL E AL a s External Alarm With active input display visualizes PSA L Pressure Switch Alarm If during the break time selected on l IE l input detects a number of activation equal to the I I value selected on Lt iPS controller stops compressor and visualizes AL Pressure Alarm When input is active compr
9. 022 4 Wiring plan 24 23 22 21 20 19 Heda 18 El 16 15 14 13 12Vde de e e 7 RS485 Diz Dn BE EVAR PRA HERM N DRR132 is equipped with screw terminals suitable for wires of max 2 5mm2 The NTC PTC 2 wires have no polarity It is a good safety guideline to separate power line from the probe wirings REM ON during Modbus communication 7 Error messages Cause What to do P Cell probe damaged or T temperature out of limit Verify probe connection and its integrity P g Evaporator probe damaged or E temperature out of limit Verify probe connection and its integrity Probe 3 damaged or temperature out of limit i Verify probe connection and its integrity Pressure switch alarm D D C Alarm enabled by digital input Switch off and restart the device External alarm 4 Alarm enabled by digital input Door alarm Alarm enabled by digital input Hight temperature alarm Low temperature alarm Sia E Error in EEPROM cell programming MIT Contact technical support Incorrect configuration data possible loss of device calibrations l oo E My MQ Verify that configuration parameters are correct 8 Technical data 5 Operating modes 5 1 Comp
10. Pr Probe 1 Default ERE Probe 2 Pr J Probe 3 G E Setpoint 17 Visualization Display 2 de Selects display 2 visualization d iS Disabled Pr Probe 1 Pr c Probe 2 Pr J Probe 3 5 E Setpoint Default 18 Setpoint Protection 5 EP J Selects type of protection against unintentional modifications of setpoint by the user F T E E Free No protection user can modify setpoint Default l LOC Lock Setpoint cannot be modified by the user DEFROSTING N Display Parameter description Entering range GEES Defrost Type Selects defrost type EL In inversion Compressor ON hot gas electric Compressor stopped default IEE y Defrost Time Selects break duration between two defrostings 1 50 hours Default 6 hours dEcol Defrost Count Selects break counting type between two defrostings cro m Compressor Time On Only compressor operating time is counted ZT EE l Real Time Break time from defrosting start is the real elapsed time time is always the same Default Sed F Stop Compressor Defrost Defrosting at each compressor stop FrEE defrosting Free Compressor goes on regulating on SET independently from BEE Defrost Delay Delay time for defrosting start 0 120 minutes Default 0 minutes
11. ents broadcast mode while with O all devices receive command but no answer is expected DRR132 can introduce an answer delay in milliseconds to Master request this delay has to be set on parameter SEd El At each parameters modification instrument stores values in EEPROM memory 100000 writing cycles while setpoints are stored with a delay of 10 seconds after last modifi cation NB Modifications made to Words different from those described in the following table can lead to instrument malfunction Baudrate Selectable by parameter bdr El 4800bit s 9600bit s 19200bit s 28800bit s 38400bit s 57600bit s Format 8 N 1 8bit no parity 1 stop Supported functions WORD READING max 20 word 0x03 0x04 SINGLE WORD WRITING 0x06 MULTIPLE WORDS WRITING 0x10 max 20 word MODBUS ADDRESS READ RESET VALUE DESCRIPTION WRITE 0 Device type RO 104 1 Software version RO FLASH 5 Address Slave RO EEPR 6 Boot version RO FLASH 50 Automatic addressing wo 51 Installation code comparison wo 500 Loading default values R W 0 9999 restore all values 9998 restore all values excluded baud rate and address slave 9997 restore all values excluded address slave 9996 restore all values excluded baud rate 1000 Process 1 value RO 0 1001 Process 2 value RO 0 1002 Process 3 value RO 0 1003 Setpoint 1 value R W EEPR 1004 Setpoin
12. ess ser plus REGULATION N Display Parameter description Entering range 1 HYS Compressor Hysteresis 30 0 30 0 C F E Selects hysteresis into the calculation of intervention thresholds for compressor relay output Default 2 0 C 2 1 Lower Limit Setpoint E oS SET Lower limit Setpoint cannot be selected under this value 40 UY PES C F Default 40 C 3 Upper Limit Setpoint 7 LJ PLS SET Upper limit Setpoint cannot be selected over this value L ES 210 C F Default 40 C 4 P 1 Probe 1 I Selects input 1 type MEE NTC Cell probe type NTC 10KQ 83435K Default PEE PTC Cell probe type PTC 1KQ 5 P lo Probe 1 Offset 20 0 20 0 C F E Offset correction of Cell probe adds subtracts degrees to the visualization Default 0 0 C 6 Probe 2 Pr Selects input 2 type dS Disabled mec NTC Evaporator probe type NTC 10KQ B3435K Default PE E PTC Evaporator probe type PTC 1KQ 7 P g Probe 2 Offset 20 0 20 0 C F F E O Offset correction of Evaporator probe adds subtracts degrees to t
13. essor is off To restart normal regulation it is necessary to switch off and restart controller JE F Defrost With active input defrosting function starts Regulation Type With active input the device follows an hot type regulation otherwise regulation is cold Pied Ck HS 2 Thresholds Switch If active the controller works according to SET2 otherwise on SET1 44 I Digital Input 1 Polarity I IP O Selects type of contact for digital input 1 activation oc Open Contact Cc Closed Contact Default 45 1 Digital Input 1 Output Off 10 0 ee Hor E AL MONE none Default ip L J OO selects outputs to be switched off during digital F A input activation I Fan ip Lt ic F PSH L in case of pressure alarm selects outputs to be switched off E HE Compressor excluded the compressor that is stopped E A CO Fan and Compressor LL AI 46 IE E Digital Input 1 Temperature 0 0 50 0 C F LU 1 E g IE E Default 0 0 C pb EF OOOT determinates threshold SET l d to be surpassed Selecting O control will not be done Selected options restart with digital input 1 deactivation so that option selected on parameter 1 LQO restart also with active digital input 47 IE Digital Input Time 0 120 minutes L pl Default 0 minutes f l ic F doo E Max deactivation time for outputs selected on parameter La loo with active digital input Selecting O control will not be done Selected options restart with dig
14. he visualization Default 0 0 C 8 Probe 3 Pr J Selects input 3 type d 15 Disabled Default ntc NTC Probe 3 type NTC 10KQ B3435K 9 P 4 Probe 3 Offset 20 0 20 0 C F BER Offset correction of Probe 3 adds subtracts degrees to the visualization Default 0 0 C 10 d S Output Delay Start up 0 120 minutes OD Selects outputs exclusion time after device start up Default 0 minutes 11 P Compressor Sel Protection pP E TJ Selects protection type against close compressor starts NOQOFE No Protection No protection do m Delay On Activation delay default do F F Delay Off Min time for compressor switch off db E E Delay Between Min time between two compressor starts 12 E P Compressor Time Protection 0 30 minutes E E Selects previous parameter duration Default 0 minutes 13 Compressor State Error ESE E Selects compressor status in case of cell probe failure O H F on default DISPLAY AND KEYS N Display Parameter description Entering range 14 dE me Degree or LI Selects probe degrees type When measure unit changes setpoint and parameters have to be E Converts temperature in Celsius degrees Default properly modified O F Converts temperature in Fahrenheit degrees 15 dP Decimal Point g A Selects type of visualized decimal Enteger number resolution 1 C F Default AM UD Decimal resolution 0 1 C F 16 Visualization Display 1 1 U 1d Selects display 1 visualization
15. ital input deactivation f La Ic F E H L delay between digital input activation and signaling f La Ic F a PSA L break time to calculate number of pressure switch activations 48 PS Digital Input 1 Pressure Switch Number 1 15 activations MM ICF PSAL IE Default 2 activations fl EF E max pressure switch activations during Ll l time before alarm signaling 49 Digital Input 2 Configuration Disabled Default wc Selects digital input operating mode d iS door E AL PSAL Door With active input display visualizes doAL Door Alarm With open port low high temperature alarms are disabled External Alarm With active input display visualizes the input detects a number of activations equal to Pressure Switch Alarm If during break time selected on ik l the value selected on AL Pressure Alarm When input is active ers controller stops and visualizes E compressor is off To return to the standard regulation it is necessary to restart the device Defrost Defrosting function starts with active input BER PERS PEHS Regulation Type With active inpu device realizes an hot type regulation otherwise the regulation is cold 2 Thresholds Switch If active the controller works according to SET2 otherwise on SET1 Digital Input 2 Polarity Pa
16. re equipped with up to four relays to control compressor defrosting and fans the fourth relay can be configured as light command auxiliary alarm or like the others Memory cards are available for configurations in series Referring to the following table it is possible to find required model If pressed for 2 allows to start manual defrosting cycle During setpoint visualization allows the modification During configuration scrolls parameters If pressed with modifies visualized parameter Allows to lock unlock keyboard Led Description 2 Ordering codes omP Shows compressor status DRR132 X X X DEF ON during defrosting 3 1 relay 30A 1 deviation relay 8A 1 relay 8A FAN Shows fan status 4 1 relay 30A 1 deviation relay 8A 2 relays 8A ES Shows light status B 230Vac 10 50 60Hz Al Shows auxiliary out 1 status T Rs485 with ModbusRTU slave protocol A2 Shows auxiliary out 2 status 3 Size and installation 4 ON when alarm is active i 72mm i A Rows E mia T m m gt fi 7 SET tl q 1 2 5 4 5 Te 7 11 12 Y Morsettiere Estraibili Extractable terminal blocks Attacco a guida DIN EN50022 Din rail mounting guide EN50
17. ressor Time Hysteresis parameter cHyg gt 0 Compressor relay Temperature controlling is always subject to hysteresis the compressor stops when the setpoint is reached and starts up again when the temperature exceeds the high setpoint plus the hysteresis value There are also various solutions to protect the compressor against closer starts start delay minimum off time and minimum time between the two successive activations If there is a thermostat probe failure compressor status will be the one set on parameter 13 ESE T BOX DIN rail 4 modules POWER SUPPLY 230Vac 10 50 60Hz CONSUMPTION 2 5VA DISPLAY 4 digits 0 4 green 4 digits 0 3 red 8 red LEDs OPERATING CONDITIONS 0 40 C 0 95rH INPUT 2NTC10K Bvalue3435K PTC 1K 1 NTC 10K value3435K ACCURACY 0 5 1 digits SAMPLING TIME 20ms REGULATION ON OFF with histeresys OUTPUT 1 relay 30A 277Vac 8310 VA max SEALING 1 relay 8A 230Vac with change over relay 2 relays 8A 230Vac IP65 front panel IP20 box and terminal blocks CONFIGURATION Parameters protected by password 1234 and memory card for production in series 9 Table of configuration parameters To enter configuration press the arrow keys for 3 enter password 1234 with the arrow keys and move the blinking digit with T To scroll parameters press arrow keys while to modify them pr
18. t 2 value R W EEPR 1005 Relay status O off 1 on RO 0 Bit0 Compressor relay Bit1 Defrosting relay Bit2 Light relay Bit3 Auxiliary relay Bit4 FAN1 output Bit5 FAN2 output 1006 Alarm status O off 1 on RO 0 Bit0 High Alarm Bit1 Low Alarm Bit2 Digital Input 1 Alarm Bit3 Digital Input 2 Alarm 1007 Digital input status O off 1 on RO 0 Bit0 Active digital input 1 Bit1 Active digital input 2 1008 Error signalling flags O off 1 on RO 0 Bit0 Errore in eeprom writing Bit1 Errore in eeprom reading Bit2 Process error 1 Bit3 Process error 2 Bit4 Process error 3 Bit5 Process error 4 Bit6 Missing calibration error 2001 Parameter 1 R W EEPR 2002 Parameter 2 R W EEPR 2003 Parameter 3 R W EEPR sala A RW EEPR 2069 Parameter 69 R W EEPR 2070 Parameter 70 R W EEPR PIXSYS www pixsys net e mail sales pixsys net support pixsys net 2300 10 170 RevA 040609
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