Installing and Operating Instructions Installing and Operating
Contents
1. i a ug Label Name Raye ee ts __ TIME AND WEEKLY HOLIDAYS i T T T T rT T T 8 F 7 P Se Se e oo Min l Sop pei ET RKU Current day Sun SAt CEt ttii on E eee Hd1 First weekly holiday Sun SAt nu 23 24 25 26 27 28 29 30 3132 33 34 35 36 37 38 A FEId bdd je ae Hd Second weekly holiday Sun SAt nu ene E 7 d Third weekly holiday Sun SAt nu Default i ess nu nu nu DEFROST TIMES OOo S 1 workdays defrost start 2 workdays defrost start 0 23h50min nu nu d workdays defrost start 0 23h50min nu nu workdays defrost start 0 23h50min nu nu nu nu i nu nu nu nu nu nu nu nu nu nu 7A T D x k a OCIO EVAPORATOR FAN T Q N Fle ala T F 1 DEFAULT SETTING VALUES o orkdays defrost start 0 23h 50 min nu orkdays defrost start 0 23h 50 min nu g Default workdays defrost start 0 23h 50 min nu Range EGULATION eee et pointi 40 et point2 40 ifferential for set1 2 ifferential for set2 2 T v pE n et et2 n ee ee ee ajajaja JND CJ NL workdays defrost start 0 23h 52. CL the digital input is activated by closing the contact OP the digital input is activated by opening the contact did Time interval delay for the first digital input door switch 0 255 min did parameter defines the time delay between the detection and the successive signalling of the alarm at first digital input TO SET CURRENT TIME AND WEEKLY HOLIDAYS 3SEC afterward ga Hur Current hour 0 23 h Min Current minute 0 59min dAY Current day Sun SAt Hd1 First weekly holiday Sun nu Set the first day of the week which follows the holiday times Hd2 Second weekly holiday Sun nu Set the second day of the week which follows the holiday times Hd3 Third weekly holiday Sun nu Set the third day of the week which follows the holiday times N B Hd1 Hd2 Hd3 can be set also as nu value Not Used TO SET DEFROST TIMES 3SEC afterward Ld1 Ld8 Workday defrost start for program 1 0 23h 50 min These parameters set the beginning of the eight programmable defrost cycles during workdays Ex When Ld2 12 4 the second defrost starts at 12 40 during workdays Sd1 Sd8 Holiday defrost start for program 1 0 23h 50 min These parameters set the beginning of the eight programmable defrost cycles on holidays Ex When Sd2 3 4 the second defrost starts at 3 40 on holidays 1598001822 XW562K LND GB R3 0 10 11 2007 doc Installing and Operating Instructions XW562K 1598001822 N B To d
3. 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 O 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 Evaporator probe failure _ Alarm output ON Defrost ended by time Second evaporator probe Alar
4. KEYBOARD Keep the o and n keys pressed together for more than 3s 47 TO SEE THE PROBE VALUES 1 Enter in Pr2 level 2 Select Prd parameter with o or n 3 Press the SET key to display Pb1 label alternate with Pb1 value 4 Use o andn keys to display the other probe values 5 Press SET to move to the following parameter 5 REAL TIME CLOCK FUNCTIONS 5 1 TO SEE AND SET THE CURRENT TIME AND DAY 1 Push the DOWN key for more than 3 seconds 2 The following messages are displayed in sequence 00 Hur hour followed by the hour Min Minute followed by the minutes dAY day followed by the day of the week 3 By pushing the SET key the setting of current hour minutes day will be possible 4 To exit push SET UP key or wait 15 seconds 5 2 TO SET THE DEFROST TIMES Y 1 Push the DOWN key for more than 3 seconds 2 The current time is displayed as written above 3 By pushing DEF key the setting defrost time will be possible 4 To exit press SET UP or wait 15s without pressing any key 5 3 STAND BY FUNCTION 1 Enter the programming 2 Select the onF parameter 1598001822 XW562K LND GB R3 0 10 11 2007 doc Installing and Operating Instructions 1598001822 3 Change its value from no to yES 4 Exit the programming and the instrument will be palced in stanby mode To revert to the normal working push for some seconds the SET key 6 PARAMETER LIST REGU
5. compressor are timed through parameters COn and COF 3 2 2M COMPRESSOR MANAGEMENT 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 or AC2 parameters depending on program 1 or 2 Both the compressors are switched off at the same time 3 3 DEFROST 2 defrost modes are available through the tdF parameter defrost with electrical heater or hot gas The defrost interval is control by means the real time clock depending on the hours set in the parameters Ld1 Ld8 on workdays and in Sd1 Sd8 in holidays for program 1 2L1 2L8 on workdays and in 2S1 2S8 in holidays for program 2 At the end of defrost the drip time is controlled through the Fdt parameter 3 4 CONTROL OF EVAPORATOR FANS The fan control mode is selected by means of the FnC parameter for program 1 and Fn2 parameter for program 2 C n fans will switch ON and OFF with the compressor and not run during defrost C y fans will switch ON and OFF with the compressor also during defrost After defrost there is a timed fan delay allowing for drip time set by means of the Fnd parameter O n fans will run continuously and not run during defrost Q 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 can be used to
6. i3P parameter 8 INSTALLATION AND MOUNTING Keyboard V650 shall be mounted on vertical panel in a 72x56 mm hole and fixed using screws 3 x 2mm To obtain an IP65 protection grade use the front panel rubber gasket mod RGW V Keyboard CX650 shall be mounted on vertical panel in a 29x71 mm hole and fixed using the special bracket supplied Power module XW562K shall be mounted in a panel with two or more screws and 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 8 1 V650 CUT OUT fF 5 K A Z 83 5 PAE DN y ZY 40 a gt 9 ELECTRICAL CONNECTIONS The instruments are provided with screw terminal block to connect cables with a cross section up to 2 5 mm for the digital and analogue inputs Relays and power supply 3 6 dIXEL have a Faston connection 6 3mm Heat resistant cables have to be used Before connecting cables make sure the power supply complies with the instruments 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
7. 0 min nu holiday defrost start 0 23h 50 min nu holiday defrost start 0 23h 50 min nu is n a 2 a holiday defrost start 0 23h 50 min nu S inimum set point1 50 0 C SET1 2 S Maximum set point1 SET1 110 C S2 Minimum set point2 50 0 C SET2 lt Oo holiday defrost start 0 23h 50 min nu holiday defrost start 0 23h 50 min nu 0 a a NIDIA AJOJN 2_ Maximum set point2 SET2 110 C dS Outputs activation delay at start up 0 255 min C C holiday defrost start 0 23h 50 min nu holiday defrost start 0 23h 50 min nu n a gt econd compressor start dela 0 255s rE aa x AAA w oO a fe ojo k fe S econd compressor start delay progr 2 0 255s inimum time a compressor remains on it s used both for compr 1 and 2 Maximum time compressor is continuously on permanent run monitoring nd workdays defrost start program 2 0 23h 50 min nu rd workdays defrost start program 2 0 23h 50 min nu bad P N NjN ied i AJOJN th workdays defrost start program 2 0 23h 50 min nu th workdays defrost start program 2 0 23h 50 min nu th workdays defrost start program 2 0 23h 50 min nu ba a nti short cycle dela nN p D st workdays defrost start program 2 0 23h50min nu 7 0 N ompressor 2 enabled with program 2 yE z th workdays defrost start program 2 0 23h 50 min nu st holiday defrost start program
8. 2 0 23h 50 min nu nd holiday defrost start program 2 0 23h 50 min nu Q On F 2F_ Second set point enabling ISPLAY Cis Q ompressor ON time with faulty probe 0 255 min Q O ompressor OFF time with faulty probe 0 255 min n nu nu nu nu th workdays defrost start program 2 0 23h50min nu nu nu nu nu nu rd holiday defrost start program 2 0 23h 50 min nu th holiday defrost start program 2 0 23h 50 min nu nu nu nu 0 nu nu nu nu nu nu nu nu nu nu nu nu nu nu nu 0 nu nu nu nu nu nu nu nu nu u holiday defrost start 0 23h 50 min nu gt oo 3 3 emperature measurement unit C 1598001822 XW562K LND GB R3 0 10 11 2007 doc XW562K 5 6 e F dIXEL Installing and Operating Instructions S SS 980018 2 Label Name Rane Default 255__ 5th holiday defrost start program 2 0 23h 50 min nu nu 2s6__ 6th holiday defrost start program 2 0 23h 50 min nu nu nu 258 8th holiday defrost start program 2 0 23h 50 min nu nu ____ OTHER eee eee ee Serial address 0 247 Ptb Mapcode o Probe displa Dixell S p A Via dell Industria 27 32010 Z I Pieve d Alpago BL ITALY tel 39 0437 98 33 fax 39 0437 98 93 13 E mail dixell dixell com http www dixell com 1598001822 XW562K LND GB R3 0 10 11 2007 doc XW562K
9. B Maximum 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 SERIAL LINE The TTL connector allows by means of the external module TTL RS485 to connect the unit to a network line ModBUS RTU compatible as the dIXEL monitoring system XJ500 Version 3 0 The same TTL connector is used to upload and download the parameter list of the HOT KEY These instruments can be ordered with direct serial output RS485 Optional 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 restart working with the new parameters
10. LATION Set1 Set point 1 LS US Is the target set point 1 Set2 Set point 2 LS2 US2 Is the target set point 2 Hy Differential for the set1 0 1 25 5 C 1 45 F Intervention differential for set pointi always positive Compressor Cut IN is Set Point Plus Differential Hy Compressor Cut OUT is when the temperature reaches the set point Hy2 Differential for the set2 0 1 25 5 C 1 45 F Intervention differential for set point2 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 1 limit 50 0 C SET1 58 F SET1 Sets the minimum acceptable value for the set point1 US Maximum set point 1 limit SET1 110 C SET1 230 F Set the maximum acceptable value for set point1 LS2 Minimum set point 2 limit 50 0 C SET2 58 F SET2 Sets the minimum acceptable value for the set point2 US2 Maximum set point 2 limit SET2 110 C SET2 230 F Set the maximum acceptable value for set point2 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 2 compressor delay at start up program 1 0 255sec Time interval between the switching on of the first compres
11. NATIONS Q To lock and unlock the keyboard To enter the programming mode Q To exit the programming mode 4 1 USE OF LEDS Each LED function is described in the following table ON Tnecompressor1isrunning FLASHING Programming Phase flashing with 34 Anti short cycle delay enabled JON Thedefrostisenabled _____ FLASHING Programming Phase flashing with 14 ON____ The evaporator fan is running FLASHING The second compressor delay is running Alarm is happening Condenser fan is running ON ON JON Prg1 is running ON Prg2 is running 1 6 ON _ The compressor 2 is running zum FLASHING The evaporator fan delay after defrost is running e ae dIXEL Function of the LEDs placed on the left top side of buttons V650 MODE FUNCTION ON Prt is running ON BUTTON Prgt Prg2_ Prg2 is running 4 2 HOW TO SEE AND MODIFY THE SET POINT 1 Push for 2sec the SET key the display will show the Set point Q value p09 2 To change the Set value push the o or n arrows within 10s a 3 To memorise the new set point value push the SET key again or wait 10s 4 3 TO START A MANUAL DEFROST Push the DEF key for more than 2 seconds and a manual defrost will start lt Manually defrost has higher priority than min compressor running time on parameter 44 TO ENTER IN PARAMETERS LIST To en
12. arted Alarms EA PAL and dEA recover as soon as the digital input is disabled 13 TECHNICAL DATA V650 keyboard Housing self extinguishing ABS Case V650 facia 64x164 mm depth 23mm Mounting V650 panel mounting in a 56x72 mm panel cut out with two screws 3x2mm Distance between the holes 40mm Protection IP20 Frontal protection IP65 Power supply from XW562K power module Display 3 digits red LED 14 2 mm high Optional output buzzer CX650 keyboard Housing self extinguishing ABS Case CX650 facia 35x77 mm depth 23mm Mounting panel mounting in a 29x71 mm panel cut out Protection IP20 Frontal protection IP65 Power supply from XW562K power module Display 3 digits red LED 14 2 mm high Optional output buzzer XW562K main board Housing self extinguishing ABS Mounting by screw Protection IP20 Frontal protection IP65 with frontal gasket mod RG L optional Connections Screw terminal block lt 2 5 mmf heat resistant wiring and tab terminal 6 3x0 8mm for load and supply and tab terminal 6 3x0 8mm for digital inputs and probes Power supply 230Vac or 110Vac 10 Rated impulsive voltage 2500V Overvoltage Category I Power absorption 7VA max Inputs 3 NTC probes Digital inputs 2 free voltage Relay outputs Total current on loads MAX 20A compressor 1 amp 2 relay SPST 20 8 A 250Vac evaporator fans relay SPST 8 3 A 250Vac defrost relay SPST 8A 250Vac alarm SPDT rel
13. ay 8 3 A 250Vac condenser fans SPST relay 8 3 A 250Vac Serial output TTL standard Communication protocol Modbus RTU Data storing on the non volatile memory EEPROM Kind of action 1B Pollution degree 2 Software class A Operating temperature 0 50 C Storage temperature 25 60 C Relative humidity 20 85 no condensing Measuring and regulation range NTC probe 40 110 C 58 230 F ADDITIONAL INFORMATION FURNISHED BY MANUFACTURER Frontal protection IP65 with frontal gasket mod RGW V optional Accuracy ambient temp 25 C 0 5 C 1 digit Internal clock back up 5 years Resolution 0 1 C or 1 C or 1 F selectable XW562K 4 6 dIXEL _ Installing and Operating Instructions 1598001822 Label Name o o O Range Default IGITAL INPUTS O or switch polari cL essure switch digital input polarit efrost end digital input polari me m 80 79 N U 1 sieer OO or OD oom DEFROST e 8 8 8
14. dIXEL XW562K V650 AND CX650 1 GENERAL WARNING 14 DN ee READ BEFORE USING THIS MANUAL e 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 1 2 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 In 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 e Ensure that the wires for probes loads and the power supply are separated and far enough from each other without crossing or intertwining e 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 The XW562K series is fitted with a Real Tim
15. e 115 drim MdF yES enabled YES R i no disabled e lee rs e d lat _ Defrost termination temperature 1 Evaporator 50 0 110 c_ 8 0 i ba dt2 Defrost termination temperature for program 2 50 0 C 0 58 F 110 C o oe ee s eee Lan See ten ae p TF id2 _ Interval between defrost cycles for the program 2__ 1 120hous 12 P ve Mt2 _ Maximum length of defrost for the program 2 0 255minuts 30 ab nooo ldFd_ Display during defrost dEF ea Ce fasa Defrost T o o o e o e j s0nn Fat_ Drainingtime min S o p ojp a aPO Firstdefrostafterstatup _ nyy rmo polpa FANS S S i e p a onpa ece o ilese r eo o iieo oi Fc2 Fans operating mode with program 2 i Fnd_ Fans delay afterdefrost_ 255 min 0 raned eA ae FSt_ Fans stoptemperature STS SOOHTIOPC 20 pereeo eect ce CL fatarms S S i iid bale ee er C 30mm z MAXIMUM temperature alarm for set2 13 15__ CONNECTIONS oAP_ Alarm relay polarity PhP F H E __ ANALOGUE INPUTS o o i S S Ay l i Ot Thermostat probe calibration 1420 120 0_ 00 L ETE tii P2P_ Evaporator probe presence 7517417317217 117p169168167 tor probe calibration 1420 120 0_ 00 EH 3P_ Second evaporator probe presence R EA 3 Second evaporator probe calibration 1420 120 0_ 0 0 cL oP oP ojojvjojojojojm 5 a s lt o 2 o dig igital input alarm dela 0 255 min f 47 48 49
16. e Clock which allows programming of up to eight daily defrost cycles divided into holidays and workdays Model XW562K 127x123 mm format is microprocessor based controller suitable for applications on medium or low temperature refrigerating units It is provided with six relay outputs to control 2 compressors defrost which can be either electrical or hot gas the evaporator fans the condenser fan and the alarm output They are also provided with 3 NTC probe inputs one for temperature control the other 2 to control the defrost end temperature of the evaporators There are 3 digital inputs free contact for the door switch the pressure switch and for safety end of defrost The electronic controller can work with two parameter lists switch over by a key The standard TTL output allows the user to connect by means of a TTL RS485 external module a ModBUS RTU compatible monitoring system and to programme the parameter list with the Hot Key The controller also provides an output for remote keyboard V650 or CX650 3 CONTROLLING LOADS 3 1 THE COMPRESSORS 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 The compressor is 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
17. elay is active till the alarm condition lasts yES muting enabled the alarm relay can be muting by pressing a key oAPAlarm relay polarity CL contact 63 64 are closed when an alarm happens oP contact 63 65 are closed when an alarm happens ArE Alarm relay activated by first digital input door switch no the digital input doesn t activate the alarm relay yES the digital input activates the alarm relay Ot Thermostat probe calibration 12 0 12 0 C 21 21 F allows to adjust possible offset of the thermostat probe P2P Evaporator probe presence no not present the defrost stops only by time yES 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 Second evaporator probe presence no not present the defrost stops only by time yES present the defrost stops by temperature and time O3 Second Evaporator probe calibration 12 0 12 0 C 21 21 F allows to adjust possible offsets of the evaporator probe DIGITAL INPUTS i1P Door switch input polarity CL the digital input is activated by closing the contact OP the digital input is activated by opening the contact i2P Pressure switch digital input polarity CL the digital input is activated by closing the contact OP the digital input is activated by opening the contact i3P Digital input polarity of the safety thermostat for defrost
18. isable a defrost cycle set it to nu not used Ex If Ld6 nu the sixth defrost cycle is disabled 2L1 2L8 Workday defrost start for program 2 0 23h 50 min These parameters set the beginning of the eight programmable defrost cycles during workdays Ex When 2L2 12 4 the second defrost starts at 12 40 during workdays 2S1 2S8 Holiday defrost start for program 2 0 23h 50 min These parameters set the beginning of the eight programmable defrost cycles on holidays Ex When 282 3 4 the second defrost starts at 3 40 on holidays OTHER Adr RS485 serial address 1 247 Identifies the instrument address when connected to a ModBUS compatible monitoring system onF To put in stand by the instrument no instrument is working yES instrument is placed in standby mode NOTE1 changing this parameter the instrument is placed in STANDBY mode when the programming is exited NOTE to revert the instrument from stand by the standard working press for some seconds the SET key rEL Release software read only Software version of the microprocessor Ptb Parameter table read only it shows the original code of the dIXEL parameter map Prd Probes display read only display the temperature values of the evaporator probe Pb2 and the auxiliary probe Pb3 7 DIGITAL INPUTS The XW562K can support 3 free contact digital inputs The function of each one are described below 7 1 DOOR SWITCH TERMINALS 69 70 The digital input sh
19. m output ON Defrost ended by time failure Alarm output ON Other outputs unchanged Alarm relay depends on the ArE par external alarm Output unchanged Alarm relay on dEA Safety thermostat for Defrost stopped Alarm relay on Start cooling defrost alarm DEF POF _ Keyboard locked rte Real time clock alarm COO Alarm output ON Other outputs unchanged Defrosts according to par IdF To erase the alarm enter the Clock setting menu by pushing the DOWN key for few second see par 5 2 The alarm message is displayed until the alarm condition is recovery All the alarm messages are showed alternatively 12 1 SILENCING BUZZER ALARM RELAY OUTPUT If tbA yES once the alarm signal is detected the buzzer and the relay are is silenced by pressing any key If tbA no only the buzzer is silenced while the alarm relay is on until the alarm condition recovers 1598001822 XW562K LND GB R3 0 10 11 2007 doc Installing and Operating Instructions 1598001822 Probe alarms P1 probe1 faulty P2 and P3 automatically stop 10s after the probe restarts normal operation Check connections before replacing the probe Temperature alarms tAL automatically stop as soon as the thermostat temperature returns to normal values Temperature alarm tAL automatically stops as soon as the thermostat temperature returns to normal values and when defrost is st
20. make sure circulation of air only if his temperature is lower than set in FSt 1598001822 XW562K LND GB R3 0 10 11 2007 doc Installing and Operating Instructions XW562K 1598001822 The condenser fan relay is always activated except during defrost During the defrost the status of condenser fan depends on the cFE parameter with cFE no the condenser fan doesn t run during defrost with cFE yES the condenser fan runs during defrost 4 KEYBOARD To display and modify target set point in programming mode it selects a parameter or confirms an operation By pressing it when the current time is displayed it allows the User to re set the current time and three holidays In programming mode it browses the parameter codes or increases the displayed value in programming mode it browses the parameter codes or decreases the displayed value By holding it pressed for 3s the current time is displayed and it permits the User to enter Defrost and Clock parameter menu By holding it pressed for 3s the defrost is started The manual defrost overrides the minimum running time of a compressor on parameter By pressing it when the current time is displayed it allows the User to set defrost times Prg1 Keep it pressed for 2 seconds to switch the controller from the Program 2 to the Program 1 Prg2 Keep it pressed for 2 seconds to switch the controller from the Program 1 to the Program 2 oe we KEY COMBI
21. n operating mode for program 1 C n running with the compressor OFF during the defrost C y running with the compressor ON during the defrost O n continuous mode OFF during the defrost O y continuous mode ON during the defrost FC2 Fan operating mode for program 2 C n running with the compressor OFF during the defrost C y running with the compressor 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 FSt Fan stop temperature 50 110 C 58 230 F setting of temperature detected by evaporator probe above which the fan is always OFF ALARMS ALU High temperature alarm setting related to the SET1 50 150 C when this temperature is reached and after the ALd delay time the tAL alarm is enabled Au2 High temperature alarm setting related to the SET2 50 150 C when this temperature is reached and after the ALd delay time the tAL alarm is enabled ALd Temperature alarm delay 0 255 min time interval between the detection of an alarm condition and the corresponding alarm signalling dAO Exclusion of temperature alarm at start up or after a defrost from 0 0 min to 23 5h time interval between the detection of the temperature alarm condition after instrument power on and alarm signalling tbA Alarm relay muting no muting disabled the alarm r
22. ould be activated by closing the contact The external alarm can be delayed by means of the did parameter The recovery of this alarm type on the display is EA By means of the ArE parameter can be chosen either if there is the message EA on the display and the alarm relay is activated or if there is only the message EA on the display The alarm condition disappears as soon as the digital input is open The polarity of this digital input is set in the i1P parameter 7 2 PRESSURE SWITCH INPUT TERMINALS 68 71 When the pressure switch is activated the compressors are immediately stopped and the PAL message is displayed The alarm relay is always activated Condenser fans and evaporator fans continue working If the pressure switch is activated during a hot gas defrost the defrost is stopped Standard regulation will restart 6min after the end of High pressure switch alarm The polarity of this digital input is set in the i2P parameter 7 3 SAFETY THERMOSTAT FOR DEFROST TERMINALS 67 72 When this digital input is activated the controller finishes the defrost immediately and goes to cooling operation The safety thermostat alarm is excluded for the dAo time when the instrument is switched on The dEA alarm message is displayed and the alarm relay is activated The next defrost starts at the next programmed defrost time if the digital input is de activated The polarity of this digital input is set in the
23. resys 0 25 5 C it is used for the special visualisation LINDE s algorithm When the temperature measured by the room probe is less then Setpoint Hysteresis the displayed temperature must be calculated by the microprocessor according to the following formula if Tm gt SEt Hy gt Td SEt dot dHy if Tm lt SEt Hy gt Td SEt dot Tm SEt x dHy Hy where Tm temperature measured by room probe Td temperature displayed by the controller DEFROST MdF enabling the defrost key yES defrost key enabled no defrost key disabled tdF Defrost type rE electrical heater Compressor OFF in hot gas Compressor and defrost relays ON EdF Defrost mode rtc Real Time Clock mode Defrost time follows Ld1 Ld8 parameters on workdays and Sd1 Sd8 on holidays for program 1 2L1 2L8 parameters on workdays and 2S1 2S8 on holidays for program 1 in interval mode The defrost starts when the time Idf is expired dtE Defrost termination temperature fro program 1 50 0 110 0 C 58 230 F Enabled only when the evaporator probe is present sets the temperature measured by the evaporator probe which causes the end of defrost dt2 Defrost termination temperature fro program 2 50 0 110 0 C 58 230 F Enabled only when the evaporator probe is present sets the temperature measured by the evaporator probe which causes the end of defrost idF Interval between defrosts for program 1 1 120h It is used as
24. safety time in case of RTC problem Determines the time interval between the beginning of two defrost cycles when the RTC is broken Id2 Interval between defrosts for program 2 1 120h It is used as safety time in case of RTC problem Determines the time interval between the beginning of two defrost cycles when the RTC is broken Mtd Maximum duration of defrost for program 1 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 XW562K 2 6 dIXEL Mt2 Maximum duration of defrost for program 2 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 dFd Display during defrost dEF dEF label dEG dEG label dSd Start defrost delay 0 59min This is useful when different defrost start times are necessary to avoid overloading the plant 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 cFE Condenser fan working during defrost no condenser fan doesn t run during defrost yES condenser fan runs during defrost EVAPORATOR FANS FnC Fa
25. sor and the second one AC2 2 compressor delay at start up program 2 0 255sec Time interval between the switching on of the first compressor and the second one on minimum compressor running time 0 30min Mon Maximum compressor running time 0 120min with O the function is disabled If this time is reached the compressor is switched off for the Ac time then if there are the conditions it restarts cP2 Second compressor enabled with program 2 yES no 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 COF Compressor OFF time with faulty probe 0 255 min time during which the compressor is off in case of faulty thermostat probe With COF 0 compressor is always active S2E Second program enabled no the second set point is disabled and not selectable yES the second set point can be selected 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 in 1 C dot Display offset for program 1 0 25 5 C it is used for the special visualisation LINDE s algorithm do2 Display offset for program 2 0 25 5 C it is used for the special visualisation LINDE s algorithm dHy Display histe
26. ter the parameter list user accessible parameters operate as follows pa ADA My D a 1 Enter the Programming mode by pressing the Set and DOWN key for 5s Pr2 appears 2 Release the keys 4 and start blinking 3 Select the required parameter 4 Press the SET key to display its value 5 Use UP or DOWN to change its value 6 Press SET to store the new value and move to the following parameter To exit Press SET UP or wait 30s without pressing a key NOTE the set value is stored even when the procedure is exited by waiting the time out to expire 4 5 HOW TO CHANGE THE PARAMETER VALUE 1 Enter the Programming mode 2 Select the required parameter with o or n 3 Press the SET key to display its value and oe LED starts blinking 4 Use o or n 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 4 6 HOW TO LOCK THE KEYBOARD 1 Keep the o and n keys pressed together for more than 3 s the o and n keys 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 to switch ON and OFF the light the auxiliary output and the instrument pa TO UNLOCK THE
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