dIXEL Installing and Operating Instructions
Contents
1. The relay of the second compressor is activated in parallel with the relay of the first compressor with a possible delay set in the AC1 parameter Both the compressors are switched off at the same time 3 2 FAST FREEZING When defrost is not in progress it can be activated by holding the a key pressed for about 3 seconds The compressor operates to maintain the ccS set point for the time set through the CCt parameter The cycle can be terminated before the end of the set time using the same activation key a for 3 seconds 3 3 DEFROST Two defrost modes are available through the tdF parameter defrost through electrical heater tdF EL and hot gas defrost tdF in Other parameters are used to control the interval between defrost cycles IdF its maximum length MdF and two defrost modes timed or controlled by the evaporator s probe P2P At the end of defrost dripping time is started its length is set in the FSt parameter With FSt 0 the dripping time is disabled CONTROL OF EVAPORATOR FANS The fan control mode is selected by means of the FnC parameter FnC C_n fans will switch ON and OFF with the compressor and not run during defrost FnC o0_n fans will run even if the compressor is off and not run during defrost After defrost there is a timed fan delay allowing for drip time set by means of the Fnd parameter FnC C_Y fans will switch ON and OFF with the compressor and run du2. Installing and Operating Instructions XW60K AND T620 V620 CX620 1 GENERAL WARNING PLEASE READ BEFORE USING THIS MANUAL This manual is part of the product and should be kept near the instrument for easy and quick reference e The instrument shall not be used for purposes different from those described hereunder It cannot be used as a safety device e Check the application limits before proceeding A SAFETY PRECAUTIONS e Check the supply voltage is correct before connecting the instrument e Do not expose to water or moisture use the controller only within the operating limits avoiding sudden temperature changes with high atmospheric humidity to prevent formation of condensation e Warning disconnect all electrical connections before any kind of maintenance e Fit the probe where it is not accessible by the End User The instrument must not be opened e n case of failure or faulty operation send the instrument back to the distributor or to Dixell S p A see address with a detailed description of the fault e Consider the maximum current which can be applied to each relay see Technical Data Ensure that the wires for probes loads and the power supply are separated and far enough from each other without crossing or intertwining In case of applications in industrial environments the use of mains filters our mod FT1 in parallel with inductive loads could be useful 2 General description Model XW60K is micro
3. C 58 230 F it defines the room temperature setpoint to switch auxiliary relay SHy Differential for auxiliary relay 0 1 25 5 C 1 45 F Intervention differential for auxiliary relay set point always positive ArP Probe selection for auxiliary nP aux relay is switched by digital input with i1F AUS P1 Probe 1 Thermostat probe P2 Probe 2 evaporator probe P3 Probe 3 display probe P4 Probe 4 Sdd Auxiliary output working during defrost n the auxiliary output is switched off during defrost y the auxiliary output goes on working during defrost ALARMS ALP Probe for temperature alarm setting P1 thermostat probe P2 evaporator probe P3 condenser 1 probe P4 O condenser 2 probe ALC Temperature alarm configuration rE High and Low alarms related to Set Point Ab High and low alarms related to the absolute temperature ALU High temperature alarm setting ALC rE 0 50 C or 90 F ALC Ab ALL 110 C or 230 F when this temperature is reached and after the ALd delay time the HA alarm is enabled 1592026020 ALL Low temperature alarm setting ALC rE 0 50 C or 90 F ALC Ab 50 C or 58 F ALU when this temperature is reached and after the ALd delay time the LA alarm is enabled AFH Temperature alarm and fan differential 0 1 25 5 C 1 45 F Intervention differential for temperature alarm set point and fan regulation set point always positive ALd Temperature alarm delay 0 255
4. Set value push the or arrows within 10s 2 To memorise the new set point value push the SET key again or wait 10s 5 6 TO START A MANUAL DEFROST tt 1 Push the DEF key for more than 2 seconds and a manual defrost will start 5 7 TO ENTER IN PARAMETERS LIST PR1 To enter the parameter list Pr1 user accessible parameters operate as follows 2 amp 1 Enter the Programming mode by pressing the Set and DOWN key for few seconds h and i start blinking 2 The instrument will show the first parameter present in Pr1 THE HIDDEN MENU The hidden menu Includes all the parameters of the instrument HOW TO ENTER THE HIDDEN MENU 1 Enter the Programming mode by pressing the Set keys for 3s h and na start blinking 1592026020 2 Released the keys then push again the Set keys for more than 7s The Pr2 label will be displayed immediately followed from the HY parameter NOW YOU ARE IN THE HIDDEN MENU Select the required parameter Press the SET key to display its value Use or v to change its value 6 Press SET to store the new value and move to the following parameter To exit Press SET or wait 15s without pressing a key NOTE1 if none parameter is present in Pr1 after 3s the noP message is displayed Keep the keys pushed till the Pr2 message is displayed NOTE2 the set value is stored even when the procedure is exited by waiting the time out to expire gi e o HOW
5. freezing pO IFANS i Q B FnC Fans operating mode C n C y O n O y nd Fans delay after defrost 0 255 min Differential of temperature for forced 0 50 C activation of fans mn O JO 3E lt s N Il 1592026020 XW60K GB R1 0 22 02 2008 doc FSt Fans stop temperature 50 0 110 C 58 230 F 2 Pr1 Fon Fanon time with compressor off 15 min O f Pr FoF Fan off time with compressor off _ O15 min 0O Pr2 FAP Probe selection for fan management nP P1 P2 P3 P4 P2 Pr2 AUXILIARY THERMOSTAT J CEC SAA Set Point for auxiliary relay 50 0 110 C 58 230 F 0 0 Pr2 Differential for auxiliary relay 0 1 25 5 C 1 45 F ArP Probe selection for auxiliary relay nP P1 P2 P3 Sdd_ Aux output working during defrost _ ALARMS SSS SSS S AFH Temperature alarm and fan differential 0 1 25 5 C 1 45 F_ 2 0 Pr2 1 ALd Temperature alarm delay Q 255 min 5 Pr2 dAO Delay of temperature alarm at start up 0 23h 50 min ade Probe for temperat alarm of nP P1 P2 P3 P4 condenser Condenser for low temperat alarm 55 150 C 67 302 F AU2 Condenser for high temperat alarm 55 150 C 67 302 F recovery 0 1 C 25 5 C 1 F 45 F 0 254 min 255 nU 1 Ad2 Condenser temperature alarm delay Delay of cond temper alarm at start up 0 0 fo lo Compr off for condenser low bLL temperature ala
6. the bLL parameter dA CA CA Pressure switch alarm i1F PAL All outputs OFF EE Data or memory failure Alarm output ON Other outputs unchanged The alarm message is displayed until the alarm condition is recovery All the alarm messages are showed alternating with the room temperature except for the P1 which is flashing To reset the EE alarm and restart the normal functioning press any key the rSt message is displayed for about 3s 12 1 SILENCING BUZZER Once the alarm signal is detected the buzzer can be silenced by pressing any key Buzzer is mounted in the keyboard and it is an option 12 2 EE ALARM The dixell instruments are provided with an internal check for the data integrity Alarm EE flashes when a failure in the memory data occurs In such cases the alarm output is enabled 12 3 ALARM RECOVERY Probe alarms P1 probe1 faulty P2 and P3 they automatically stop 10s after the probe restarts normal operation Check connections before replacing the probe Temperature alarms HA LA HA2 and LA2 automatically stop as soon as the temperature returns to normal values Alarms EA and CA with i1F bAL recover as soon as the digital input is disabled Alarm CA with i1F PAL recovers only by switching off and on the instrument 13 Technical data Keyboards Housing self extinguishing ABS Case T620 f
7. the keyboard and is affected by status of the digital input when i1F dor OA3 CP2 28 COMPRESSOR MANAGEMENT By setting oA3 cP2 the relay at terminals 22 23 will operate as second compressor It will be activated in parallel with the relay of the first compressor with a possible delay set in the AC1 parameter seconds Both the compressors are switched off at the same time OA3 ONF ON OFF RELAY By setting oA3 onF the relay will operate as on off relay it will be activated when the controller is switched on and it will be switched off when the controller is in stand by status OA3 AUS AUXILIARY RELAY By setting oA3 AUS the relay 22 23 will work as auxiliary thermostat I E anti condensing heater Parameters involved ACH cL Ht Kind of regulation for the auxiliary relay Ht heating CL cooling SAA 50 150 Set point for auxiliary relay SHy 0 25 5 C Differential for auxiliary output O With ACH CL aux relay cut in is SAA SHy cut out SAA O With ACH Ht aux relay cut in is SAA SHy cut out SAA ArP nP P1 P2 P3 P4 Probe for auxiliary relay Sdd n Y Auxiliary output working during defrost OA3 ALR ALARM RELAY By setting oA3 ALr the relay will work as alarm relay it is switched on when an alarm happens Parameters involved tbA n y Alarm relay silencing AoP cL oP Alarm relay polarity OA3 DB NEUTRAL ZONE By setting oA3 db the controller will pe
8. TO MOVE A PARAMETER FROM THE HIDDEN MENU TO THE FIRST LEVEL AND VICEVERSA Each parameter present in the HIDDEN MENU can be removed or put into THE FIRST LEVEL user level by pressing SET In HIDDEN MENU when a parameter is present in First Level the decimal point is on 5 8 HOW TO CHANGE THE PARAMETER VALUE 1 Enter the Programming mode 2 Select the required parameter with a or v 3 Press the SET key to display its value Gi and A LED starts blinking 4 Use a or v to change its value 5 Press SET to store the new value and move to the following parameter To exit Press SET UP or wait 15s without pressing a key NOTE the new programming is stored even when the procedure is exited by waiting the time out 5 9 HOW TO LOCK THE KEYBOARD 1 Keepthe and keys pressed together for more than 3 s the and keys 2 The POF message will be displayed and the keyboard is locked At this point it is only possible the viewing of the set point or the MAX o Min temperature stored and G to switch ON and OFF the light the auxiliary output and the instrument wr TO UNLOCK THE KEYBOARD Keep the a and keys pressed together for more than 3s 5 10 ON OFF FUNCTION STAND BY By pushing the ON OFF key the instrument shows OFF for 5 sec and the ON OFF LED is switched ON During the OFF status all the relays are switched OFF and the regulations are stopped if a monitoring system is connec
9. acia 38x185 mm depth 23mm V620 facia 72x56 mm depth 23mm CX620 facia 75x36 mm depth 23mm Mounting T620 panel mounting in a 150x31 mm panel cut out with two screws 3 x 2mm Distance between the holes 165mm V620 panel mounting in a 56x72 mm panel cut out with two screws 3x2mm Distance between the holes 40mm CX620 panel mounting in a 71x29mm panel cut out Protection IP20 Frontal protection IP65 with frontal gasket Connections Screw terminal block lt 2 5 mm Power supply from XW60K power module Display 3 digits red LED 14 2 mm high Optional output buzzer Power module XW60K Case 8 DN 140X176X148 Connections Screw terminal block lt 2 5 mm heat resistant wiring and 6 3mm Faston 1592026020 XW60K GB R1 0 22 02 2008 doc XW60K 4 5 1592026020 Installing and Operating Instructions Power supply 230Vac or 110Vac 10 or 24Vac Power absorption 10VA max Inputs 4 NTC probes Digital inputs 1 free voltage Relay outputs Total current on loads MAX 20A compressor relay SPST 20 8 A 250Vac fan relay SPST 8 3 A 250Vac defrost relay SPST 16 5 A 250Vac light 0A3 relay SPST 16 5 A 250Vac Serial output TTL standard Communication protocol Modbus RTU Data storing on the non volatile memory EEPROM Kind of action 1B Pollution grade normal Software class A Operating temperature 0 60 C Storage temperature 25 60 C Relative humidity 20 85 no condensing Measuring and
10. ameter the pressure switch has reached the number of activation of the nPS parameter the CA pressure alarm message will be displayed The compressor and the regulation are stopped When the digital input is ON the compressor is always OFF If the nPS activation in the did time is reached switch off and on the instrument to restart normal regulation AUXILIARY OUTPUT SWITCHING i1F AUS With oA3 AUS and i1F AUX it switches the fourth relay 22 23 START DEFROST i1F dFr It starts a defrost if there are the right conditions After the defrost is finished the normal regulation will restart only if the digital input is disabled otherwise the instrument will wait until the MdF safety time is expired INVERSION OF THE KIND OF ACTION HEATING COOLING i1F Htr This function allows to invert the regulation of the controller from cooling to heating and viceversa ENERGY SAVING i1F ES The Energy Saving function allows to change the set point value as the result of the SET HES parameter sum This function is enabled until the digital input is activated DIGITAL INPUTS POLARITY The digital input polarity depends on the i1P parameter i1P CL the input is activated by closing the contact i1P OP the input is activated by opening the contact 8 Installation and mounting T620 keyboard shall be mounted on vertical panel in a 150x31 mm hole and fixed using two screws 3 x 2mm To obtain an IP65 protect
11. bed in the following table LED MODE The compressor is running FLASHING Programming Phase flashing with LED h Anti short cycle delay enabled N FLASHING Programming Phase flashing with LED si The defrost is enabled ate FLASHING b i eS gt The fan is running Drip time in progress ON The Fast Freezing cycle is enabled ALARM signal In Pr2 indicates that the parameter is also present in Pr1 ON ON Continuous cycle is running N 53 ON Energy saving enabled Auxiliary relay on CX620 only ON Measurement unit CX620 only 5 2 HOW TO SEE THE MIN TEMPERATURE 1 Press and release the key 2 The Lo message will be displayed followed by the minimum temperature recorded 3 By pressing the key or waiting for 5s the normal display will be restored 5 3 HOWTO SEE THE MAX TEMPERATURE 1 Press and release the a key 2 The Hi message will be displayed followed by the maximum temperature recorded 3 By pressing the key or waiting for 5s the normal display will be restored 5 4 HOWTO RESET THE MAX AND MIN TEMPERATURE RECORDED To reset the stored temperature when max or min temperature is displayed 1 Press SET key until rST label starts blinking N B After the installation RESET the temperature stored 5 5 HOWTO SEE AND MODIFY THE SET POINT 1 Push and immediately release the SET key the display will show the Set point value 2 To change the
12. efrost termination temperature nterval between defrost cycles Maximum length for 1 defrost tart defrost delay isplaying during defrost AX display delay after defrost raining time irst defrost after start up efrost delay after fast freezing h CS n COF 55 0 150 0 C 0 255 min 0 255 min sis lt s sisis NINI N INI N gt ojo O O a NO oO p p L A22 CH0 LAC o E P0255 min o Omn P2558 UO O 100 100 P1 0 P2 55 0 150 0 C P0255 min Oo 0 NS F o O l o mn 5 5 I 4 in de P1 1r2 0 20 0 min 10 sec 1 99 dLy EL in nP P1 P2 P3 P4 50 0 110 C 58 230 F 1 120h 0 255 min 0 99min rt it SEt dEF dEG 0 255 min 0 60 min U U UV U o d ss sia a I Nj NININJ gt vu Ul U U d d s s Ia Ia NINNIN gt gt RR ss NIN lt U N 0 23h 50 min Se m Ol Q o Se 1 DISPLAY TES Resolution integer decimal point FEd Remote display dLy Display temperature delay dtr_ P1 P2 percentage fordisply DEFROST O tdF Defrosttype dFP_ Probe selection for defrost termination dtE Defrost termination temperature _IdF_ Interval between defrost cycles MdF Maximum length for 1 defrost dSd Startdefrostdelay _ dFd Displaying during defrost dAd MAX display delay after defrost Fdt Drainingtime _ _ GPO First defrost after startup GAF Defrost delay after fast
13. esent O4 Fourth probe calibration 12 0 12 0 C 21 21 F allows to adjust possible offsets of the fourth probe OdS Outputs activation delay at start up 0 255 min This function is enabled at the initial start up of the instrument and inhibits any output activation for the period of time set in the parameter AUX and Light can work AC Anti short cycle delay 0 30 min interval between the compressor stop and the following restart AC1 Time delay between turning on compressor 2 0 255 sec allows to set the delay between turning on the first and the second compressor It s used with oA3 cP2 rtr Percentage of the second and first probe for regulation 0 100 100 P1 0 P2 it allows to set the regulation according to the percentage of the first and second probe as for the following formula rtr P1 P2 100 P2 CCt Thermostat override Omin 23h 50min allows to set the length of the continuous cycle Can be used for instance when the room is filled with new products CCS Set point for continuous cycle 50 150 C it sets the set point used during the continuous cycle Con Compressor ON time with faulty probe 0 255 min time during which the compressor is active in case of faulty thermostat probe With COn 0 compressor is always OFF 1592026020 XW60K GB R1 0 22 02 2008 doc XW60K 2 5 Installing and Operating Instructions COF Compressor OFF time with faulty probe 0 255 min time during which the compres
14. ion grade use the front panel rubber gasket mod RG L V620 keyboard shall be mounted on vertical panel in a 72x56 mm hole and fixed using two screws 3 x 2mm To obtain an IP65 protection grade use the front panel rubber gasket mod RGW V CX620 keyboard shall be mounted on vertical panel in a 29x71 mm hole and fixed using the special bracket supplied The controller XW60K shall be mounted in a din rail It must be connected to the keyboard by means of a two wire cable 1mm The temperature range allowed for correct operation is 0 60 C Avoid places subject to strong vibrations corrosive gases excessive dirt or humidity The same recommendations apply to probes Let the air circulate by the cooling holes XW60K 8 DIN CASE DIMENSIONS 140 O 117 6 Hall 9 Electrical connections XW60K is provided with screw terminal blocks to connect cables with a cross section up to 2 5 mm for the RS485 optional and the keyboard Connecting other inputs power supply and relays XW60K is provided with Faston connections 6 3mm Heat resistant cables have to be used Before connecting cables make sure the power supply complies with the instrument s requirements Separate the probe cables from the power supply cables from the outputs and the power connections Do not exceed the maximum current allowed on each relay in case of heavier loads use a suitable external relay N B Ma
15. ly when the evaporator probe is present sets the temperature measured by the evaporator probe which causes the end of defrost IdF Interval between defrosts 1 120h Determines the time interval between the beginning of two defrost cycles MdF Maximum duration of defrost 0 255 min When P2P n no evaporator probe it sets the defrost duration when P2P y defrost end based on temperature it sets the maximum length for defrost dSd Start defrost delay 0 99min This is useful when different defrost start times are necessary to avoid overloading the plant dFd Display during defrost rt real temperature it temperature reading at the defrost start Set set point dEF dEF label dEG dEG label dAd Defrost display time out 0 255 min Sets the maximum time between the end of defrost and the restarting of the real room temperature display Fdt Drain down time 0 60 min time interval between reaching defrost termination temperature and the restoring of the control s normal operation This time allows the evaporator to eliminate water drops that might have formed due to defrost dPo First defrost after start up y Immediately n after the IdF time dAF Defrost delay after fast freezing Omin 23h 50min after a Fast Freezing cycle the first defrost will be delayed for this time FANS FnC Fan operating mode C n running with the compressor OFF during the defrost C y running with the compres
16. min time interval between the detection of an alarm condition and the corresponding alarm signalling dAo Delay of temperature alarm at start up Omin 23h 50min time interval between the detection of the temperature alarm condition after the instrument power on and the alarm signalling CONDENSER TEMPERATURE ALARM AP2 Probe selection for temperature alarm of condenser nP no probe P1 thermostat probe P2 evaporator probe P3 third probe P4 fourth probe AL2 Low temperature alarm of condenser 55 150 C when this temperature is reached the LA2 alarm is signalled possibly after the Ad2 delay Au2 High temperature alarm of condenser 55 150 C when this temperature is reached the HA2 alarm is signalled possibly after the Ad2 delay AH2 Differential for temperature condenser alarm recovery 0 1 25 5 C 1 45 F Ad2 Condenser temperature alarm delay 0 255 min time interval between the detection of the condenser alarm condition and alarm signalling dA2 Condenser temperature alarm exclusion at start up from 0 0 min to 23 5h res 10min bLL Compressor off with low temperature alarm of condenser n no compressor keeps on working Y yes compressor is switched off till the alarm is present in any case regulation restarts after AC time at minimum AC2 Compressor off with high temperature alarm of condenser n no compressor keeps on working Y yes compressor is switched off till the alarm is present in any case reg
17. nalling delay with i1F PAL time for pressure switch function time interval to calculate the number of the pressure switch activation nPS Pressure switch number 0 15 Number of activation of the pressure switch during the did interval before signalling the alarm event I2F PAL If the nPS activation in the did time is reached switch off and on the instrument to restart normal regulation odc Compressor and fan status when open door no normal Fan Fan OFF CPr Compressor OFF F_C Compressor and fan OFF rrd Outputs restart after doA alarm no outputs not affected by the doA alarm yES outputs restart with the doA alarm HES Temperature increase during the Energy Saving cycle 30 0 C 30 0 C 22 86 F it sets the increasing value of the set point during the Energy Saving cycle OTHER Adr RS485 serial address 1 247 Identifies the instrument address when connected to a ModBUS compatible monitoring system PbC Type of probe it allows to set the kind of probe used by the instrument PbC PBC probe ntc NTC probe onF on off key enabling nu disabled oFF enabled ES to start a energy saving cycle dP1 Thermostat probe display dP2 Evaporator probe display dP3 Third probe display optional dP4 Fourth probe display rSE Real set point it shows the set point used during the energy saving cycle or during the continuous cycle rEL Release software read only Software version of the microprocesso
18. processor based controller suitable for applications on medium or low temperature refrigerating units It has to be connected by means of a two wire cable amp 1mm at a distance of up to 30 meters to the keyboard T620 or V620 or CX620 It is provided with four relay outputs to control compressor defrost which can be either electrical or hot gas the evaporator fans and light It is also provided with 4 NTC probe inputs one for temperature control one to control the defrost end temperature of the evaporator and the third and fourth to control condenser temperature or to display another temperature The HOT KEY output allows to connect the unit by means of the external module XJ485 CX to a network line ModBUS RTU compatible such as the dixe ll monitoring units of X WEB family It allows to program the controller by means the HOT KEY programming keyboard The instrument is fully configurable through special parameters that can be easily programmed through the keyboard 3 Controlling loads 3 1 THE COMPRESSOR The regulation is performed according to the temperature measured by the thermostat probe with a positive differential from the set point if the temperature increases and reaches set point plus differential the compressor is started and then turned off when the temperature reaches the set point value again In case of fault in the thermostat probe the start and stop of the compressor are timed through parameters COn and COF
19. r Ptb Parameter table read only it shows the original code of the dixell parameter map 7 Digital input The free voltage digital input is programmable in different configurations by the i1F parameter DOOR SWITCH INPUT i1F dor It signals the door status and the corresponding relay output status through the odc parameter no normal any change Fan Fan OFF CPr Compressor OFF F_C Compressor and fan OFF Since the door is opened after the delay time set through parameter did the door alarm is enabled the display shows the message dA and the regulation restarts is rtr yES The alarm stops as soon as the external digital input is disabled again With the door open the high and low temperature alarms are disabled GENERIC ALARM i1F EAL As soon as the digital input is activated the unit will wait for did time delay before signalling the EAL alarm message The outputs status don t change The alarm stops just after the digital input is de activated 1592026020 XW60K GB R1 0 22 02 2008 doc XW60K 3 5 Installing and Operating Instructions SERIOUS ALARM MODE i1F bAL When the digital input is activated the unit will wait for did delay before signalling the CA alarm message The relay outputs are switched OFF The alarm will stop as soon as the digital input is de activated PRESSURE SWITCH i1F PAL If during the interval time set by did par
20. regulation range NTC probe 40 110 C 58 230 F Resolution 0 1 C or 1 C or 1 F selectable Accuracy ambient temp 25 C 0 5 C 1 digit 14 CONNECTIONS w R D Supply 230V Def Fan Comp1 Light Line Line N N 15 Default setting values Label Name CT Rane Default Level REGULATION et point LS US ifferential 0 1 25 5 C 1 45 F inimum set point 50 0 C SET 58 F SET aximum set point SET 110 C SET 230 F hermostat probe calibration 12 12 C 120 120 F P2P Evaporator probe presence n not present Y pres Y Prt zig N O Eg S M mi mi ea O OE Evaporator probe calibration 12 12 C 120 120 F 0 0 Pr2 lal Third probe presence 1st cond n not present Y pres Pro probe 12 12 C 120 120 F r2 m Fourth probe presence 2nd cond n not present Y pres Pro probe 04 Fourth probe calibration 12 12 C 120 120 F OdS Outputs activation delay at start up 0 255 min Pr2 Anti short cycle delay 0 30 min Aci Second compressor delay 0 255s 0 100 100 P1 0 P2 100 CCt O ompressor ON time during fast 0 23h 50 min reezing et point for continuous cycle ompressor ON time with faulty probe ompressor OFF time with faulty robe ISPLAY emperature measurement unit esolution integer decimal point emote display isplay temperature delay 1 P2 percentage for disply EFROST efrost type robe selection for defrost termination
21. rforma P neutral zone regulation HHY The heating element has to be connected to the 0A3 relay 22 23 SeT If the temperature increases and reaches set point plus differential HY the compressor is HY started and then turned off when the temperature reaches the set point value again Comp A If the temperature decreases and reaches the set point minus differential HY the oA3 output ay heater is switched on and then turned OFF when the temperature reaches again the set _ point lime To display and modify target set point in programming mode it selects a parameter set or confirm an operation By holding it pressed for 3s when max or min temperature is displayed it will be erased SET 1592026020 XW60K GB R1 0 22 02 2008 doc XW60K 1 5 Installing and Operating Instructions To see the max stored temperature in programming mode it browses the parameter codes or increases the displayed value By holding it pressed for 3s the fast freezing cycle is started To see the min stored temperature in programming mode it browses the parameter codes or decreases the displayed value By holding it pressed for 3s the defrost is started Switch ON and OFF the cold room light Switch ON and OFF the instrument KEY COMBINATIONS Q To lock and unlock the keyboard Q Q To enter the programming mode AN To exit the programming mode 5 1 USE OF LEDS Each LED function is descri
22. ring defrost FnC 0_Y fans will run continuously also during defrost An additional parameter FSt provides the setting of temperature detected by the evaporator probe above which the fans are always OFF This is used to make sure circulation of air only if his temperature is lower than set in FSt Forced activation of fans This function managed by the Fct parameter is designed to avoid short cycles of fans that could happen when the controller is switched on or after a defrost when the room air warms the evaporator Functioning if the difference of temperature between the evaporator and the room probes is more than the value of the Fct parameter the fans are switched on With Fct 0 the function is disabled Cyclical activation of the fans with compressor off When Fnc c n or c Y fans in parallel to the compressor by means of the Fon and FoF parameters the fans can carry out on and off cycles even if the compressor is switched off When the compressor 1592026020 is stopped the fans go on working for the Fon time With Fon 0 the fans remain always off when the compressor is off 4 Relay 22 23 configuration special functions By means of the parameter oA3 it s possible to configure the functions of the light relay 22 23 as described in the following paragraphs OA3 LIG LIGHT RELAY FACTORY SETTING By setting oA3 Lig the relay will work as light relay it is switched on and off by the light button on
23. rm n 0 Y Compr off for condenser high AC2 temperature alarm AUXILIARY OUTPUT n LSS eee Alarm relay disabling Fourth relay configuration ALr alarm dEF do not select it Lig Light AUS AUX onF always on Fan do not select it db do not select it dF2 do not select it 0 Y0 Alarm relay polarity oA3 ALr DIGITAL INPUT a __oP opening CL closing oP opening CL closing EAL bAL PAL dor dEF Htr AUS Digital input polarity Digital input configuration D igital input alarm delay 0 255min Number of activation of pressure 0 15 15 switch oe and fan status when open no Fan CPr F_C F c pro Regulation restart with door open n P alarm y 30 C 30 C 54 F 54 F Room probe display Evaporator probe display aP3 Third probe display SSC Fourth probe display Current set point ee Sofware release O S Mapes o aa dixell s p a Z Via dell Industria 27 32010 Pieve d Alpago BL ITALY tel 39 0437 98 33 fax 39 0437 98 93 13 http www dixell com E mail dixell dixell com XW60K 5 5
24. sor ON during the defrost O n continuous mode OFF during the defrost O y continuous mode ON during the defrost Fnd Fan delay after defrost 0 255 min The time interval between the defrost end and evaporator fans start Fct Temperature differential avoiding short cycles of fans 0 59 C Fct 0 function disabled If the difference of temperature between the evaporator and the room probes is more than the value of the Fct parameter the fans are switched on FSt Fan stop temperature 50 110 C 58 230 F setting of temperature detected by evaporator probe above which the fan is always OFF Fon Fan ON time 0 15 min with Fnc C_n or C_y fan activated in parallel with compressor it sets the evaporator fan ON cycling time when the compressor is off With Fon 0 and FoF 0 the fan are always off with Fon 0 and FoF 0 the fan are always off FoF Fan OFF time 0 15 min with Fnc C_n or C_y fan activated in parallel with compressor it sets the evaporator fan off cycling time when the compressor is off With Fon 0 and FoF 0 the fan are always off with Fon 0 and FoF 0 the fan are always off FAP Probe selection for fan management nP no probe P1 thermostat probe P2 evaporator probe P3 configurable probe P4 Probe on Hot Key plug OA3 AUS AUXILIARY THERMOSTAT CONFIGURATION terms 22 23 ACH Kind of regulation for auxiliary relay Ht heating CL cooling SAA Set Point for auxiliary relay 50 0 110 0
25. sor is off in case of faulty thermostat probe With COF 0 compressor is always active DISPLAY CF Temperature measurement unit C Celsius F Fahrenheit When the measurement unit is changed the SET point and the values of the regulation parameters have to be modified rES Resolution for C in 1 C de 0 1 C allows decimal point display dE 0 1 C in 1 C rEd Remote display select which probe is displayed by the remote display T6200r CX620 or V620 P1 P2 P3 P4 SET dtr it selects which probe is displayed by the instrument P1 Thermostat probe P2 Evaporator probe P3 Third probe only for model with this option enabled P4 Fourth probe SET set point dtr percentage of visualization dLy Display delay 0 20 0m risul 10s when the temperature increases the display is updated of 1 C 1 F after this time dtr Percentage of the second and first probe for visualization when Lod dtr 0 100 100 P1 0 P2 if Lod dtr it allows to set the visualization according to the percentage of the first and second probe as for the following formula dtr P1 P2 100 P2 DEFROST tdF Defrost type EL electrical heater Compressor OFF in hot gas Compressor and defrost relays ON dFP Probe selection for defrost termination nP no probe P1 thermostat probe P2 evaporator probe P3 Third probe P4 Fourth probe dtE Defrost termination temperature 50 0 110 0 C 58 230 F Enabled on
26. t working with the new parameters 3 Turn OFF the instrument remove the Hot Key plug in the TTL serial cable then turn it ON again At the end of the data transfer phase the instrument displays the following messages end for right programming The instrument starts regularly with the new programming err for failed programming In this case turn the unit off and then on if you want to restart the download again or remove the Hot key to abort the operation 11 2 UPLOAD FROM THE INSTRUMENT TO THE HOT KEY 1 Turn OFF the instrument by means of the ON OFF key and remove the TTL serial cable if present then turn it ON again 2 When the Wing unit is ON insert the Hot key and push key the uPL message appears 3 Push SET key to start the UPLOAD the uPL message is blinking 4 Turn OFF the instrument remove the Hot Key plug in the TTL serial cable then turn it ON again At the end of the data transfer phase the instrument displays the following messages end for right programming err for failed programming In this case push SET key if you want to restart the programming again or remove the not programmed Hot key 12 ALARM SIGNALS Message Cause Outputs P1 Thermostat probe failure Alarm output ON Compressor output according to parameters COn and COF I P3 It depends on the Ac2 parameter It depends on
27. ted it does not record the instrument data and alarms When the instrument is in stand by the keyboard displays oF P N B During the OFF status the Light and AUX buttons are active 5 11 TO SEE THE PROBE VALUES 1 Enter in Pr1 level 2 Parameters dP1 dP2 dP3 and dP4 display the value of probes 1 2 3 and 4 6 Parameter List REGULATION Hy Differential 0 1 25 5 C 1 45 F Intervention differential for set point always positive Compressor Cut IN is Set Point Plus Differential Hy Compressor Cut OUT is when the temperature reaches the set point LS Minimum set point limit 50 0 C SET 58 F SET Sets the minimum acceptable value for the set point US Maximum set point limit SET 110 C SET 230 F Set the maximum acceptable value for set point PROBE INPUTS Ot Thermostat probe calibration term 1 2 12 0 12 0 C 21 21 F allows to adjust possible offset of the thermostat probe P2P Evaporator probe presence term 2 3 n not present the defrost stops only by time y present the defrost stops by temperature and time OE Evaporator probe calibration 12 0 12 0 C 21 21 F allows to adjust possible offsets of the evaporator probe P3P Third probe presence term 4 5 n not present y present O3 Third probe calibration 12 0 12 0 C 21 21 F allows to adjust possible offsets of the third probe P4P Fourth probe presence term 5 6 n not present y pr
28. ulation restarts after AC time at minimum RELAY OA3 22 23 CONFIGURATION tbA Alarm relay silencing with oA3 ALr n silencing disabled alarm relay stays on till alarm condition lasts y silencing enabled alarm relay is switched OFF by pressing a key during an alarm oA3 Fourth relay configuration 22 23 dEF do not select it FAn do not select it ALr alarm Lig light AuS Auxiliary relay onF always on with instrument on db heating element for neutral zone regulation cP2 second compressor dF2 do not select it AoP Alarm relay polarity it set if the alarm relay is open or closed when an alarm happens CL terminals 1 2 closed during an alarm oP terminals 1 2 open during an alarm DIGITAL INPUT i1P Digital input polarity oP the digital input is activated by opening the contact CL the digital input is activated by closing the contact i1F Digital input configuration EAL external alarm EA message is displayed bAL serious alarm CA message is displayed PAL pressure switch alarm CA message is displayed dor door switch function dEF activation of a defrost cycle AUS to switch on and off the 22 23 relay with oA3 AUS Htr kind of action inversion cooling heating FAn not set it ES Energy saving did 0 255 min with i1F EAL or i1F bAL digital input alarm delay delay between the detection of the external alarm condition and its signalling with i1F dor door open sig
29. ximum current allowed for all the loads is 20A 9 1 PROBE CONNECTIONS The probes shall be mounted with the bulb upwards to prevent damages due to casual liquid infiltration It is recommended to place the thermostat probe away from air streams to correctly measure the average room temperature Place the defrost termination probe among the evaporator fins in the coldest place where most ice is formed far from heaters or from the warmest place during defrost to prevent premature defrost termination 10 TTL RS485 Serial line The TTL connector allows by means of the external module TTL RS485 XJ485CX to connect the unit to a network line ModBUS RTU compatible as the dixell monitoring system XJ500 Version 3 0 The same TTL connector is used to upload and download the parameter list of the HOT KEY The instruments can be ordered wit the serial output RS485 Optional 1592026020 11 Use of the programming HOT KEY The Wing units can UPLOAD or DOWNLOAD the parameter list from its own E2 internal memory to the Hot Key and vice versa 11 1 DOWNLOAD FROM THE HOT KEY TO THE INSTRUMENT 1 Turn OFF the instrument by means of the ON OFF key remove the TTL serial cable if present insert the Hot Key and then turn the Wing ON 2 Automatically the parameter list of the Hot Key is downloaded into the Wing memory the DoL message is blinking After 10 seconds the instrument will restar
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