$&(%'' Installing and Operating Instructions
Contents
1. 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 a SS 4 10 HOW TO LOCK THE KEYBOARD 1 Keep the and keys pressed together for more than 3 s the and 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 TO UNLOCK THE KEYBOARD Keep the and keys pressed together for more than 3s 4 11 ON OFF FUNCTION 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 N B During the OFF status the Light button is active 12 TO SEE THE PROBE VALUES Enter in Pr2 level Select Prd parameter with a or v Press the SET key to display Pb1 label alternate with Pb1 value Use and keys to display the other probe values Press SET to move to the following parameter D oe 5 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 C2. ERAL DESCRIPTION Model XW40L 38x185 mm format and model XW40V 100x64 format are microprocessor based controllers suitable for applications on medium or low temperature refrigerating units They are provided with 3 relay outputs to control compressor defrost which can be either electrical or hot gas and the lights They are also provided with 2 NTC or PTC probe inputs one for temperature control one to control the defrost end temperature of the evaporator There are 1 digital inputs free contact configurable by parameter An output allows the user to programme the parameter list with the Hot Key 3 CONTROLLING LOADS O08 6 O 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 COP 3 2 FAST FREEZING When defrost is not in progress it can be activated the keypad by holding the key pressed for about 3 seconds The compressor operates in continuous mode 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 for about 3 seconds 3 3 DEFRO
3. LOAD the parameter list from its own E2 internal memory to the Hot Key and vice versa 9 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 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 9 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 a 165 amp s present then turn it ON again p 150 5 gt 2 When the Wing unit is ON insert the Hot key and push amp key the uPL message appears 3 Push SET key to start the UPLOAD the uPL message is blinking O 4 Turn OFF the instrument remove the Hot Key plug in the TTL serial cable then turn it ON again At the end of t
4. ST Two defrost modes are available through the tdF parameter defrost with electrical heater or hot gas The defrost interval is control by means of parameter EdF EdF in the defrost is made every IdF time EdF Sd the interval IdF is calculate through Smart Defrost algorithm only when the compressor is ON and the evaporator temperature is bigger than SdF parameter At the end of defrost the drip time is controlled through the Fdt parameter 4 KEYBOARD PR 1592009240 XW40L GB r1 0 20 03 02 doc To display and modify target set point in programming mode it selects a parameter or confirm an operation By holding it pressed for 3s when max or min temperature is displayed it will be erased oy 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 light of the cold room Switch ON and OFF the instrument KEY COMBINATIONS To lock and unlock the keyboard t To enter the programming mode set 606 Q Q To exit the programming mode 4 1 USE OF LEDS Each LED function is described in the following table MODE Function S The compresso
5. 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 EdA Alarm delay at the end of defrost 0 255 min Time interval between the detection of the temperature alarm condition at the end of defrost and the alarm signalling dot Delay of temperature alarm after closing the door 0 255 min Time delay to signal the temperature alarm condition after closing the door doA Open door alarm delay 0 255 min delay between the detection of the open door condition and its alarm signalling the flashing message dA is displayed 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 PROBE INPUTS Ot Thermostat probe calibration 12 0 12 0 C 21 21 F allows to adjust possible offset of the thermostat probe OE Evaporator probe calibration 12 0 12 0 C 21 21 F allows to adjust possible offsets of the evaporator probe P2P Evaporator probe presence n not present the defrost stops only by time y present the defrost stops by temperature and time HES Temperature increase during the Energy Saving cycle 30 0 C 30 0 C 22 86 F sets the increasing value of the set
6. current on loads MAX 20A compressor relay SPST 20 8 A 250Vac or SPST 8 3 A 250Vac light XW40L rel SPDT 8 3 A 250Vac XW40V rel SPST 16 6 A 250Vac defrost relay SPST 8 3 A 250Vac Other output alarm buzzer 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 regulation range PTC probe 50 150 C 58 302 F 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 12 CONNECTIONS Room Evap Digital Probe Probe Input 250Vac 250Vac 250Vac PR 1592009240 XW40L GB r1 0 20 03 02 doc 8A 8A 20A 250Vac 250Vac 250Vac XW40L ge 2 aly T D l TE die De Comp De Room A Probe Probe 13 DEFAULT SETTING VALUES Label Name Rane Default Level REGULATION i o OF ie ier CS CY aS SEM ai OJS Outputs activation delay at startup 0 255min_ 0 f Pr2 CCt Compressor ON time during fast freezing 0 23h 50 min 00 Pr2 DISPLAY o y o Resolution integer decimal point DEFROST o o y o IdF Interval between defrost cycles 1 120h 6 P dSd _ Delay before defrost 0 255min 0 Pr2 Fdt Draining time Cd Obom o f Pr dPO _ First defrost after startup ey n P dAF Defrost d
7. ds and a manual defrost will start 4 7 TO ENTER IN PARAMETERS LIST PR1 To enter the parameter list Pr1 user accessible parameters operate as follows 1 Enter the Programming mode by pressing the Set and DOWN key for few XW40L XW40V 1 4 rel 1 0 cod 1592009241 Installing and Operating Instructions seconds fe and ca start blinking 2 The instrument will show the first parameter present in Pr1 4 8 TO ENTER IN PARAMETERS LIST PR2 To access parameters in Pr2 1 Enter the Pr1 level 2 Select Pr2 parameter and press the SET key 3 The PAS flashing message is displayed shortly followed by 0 with a flashing zero 4 Use a or to input the security code in the flashing digit confirm the figure by pressing SET The security code is 321 5 If the security code is correct the access to Pr2 is enabled by pressing SET on the last digit Another possibility is the following after switching ON the instrument the user can push Set and DOWN keys within 30 seconds NOTE each parameter in Pr2 can be removed or put into Pr1 user level by pressing SET v When a parameter is present in Pr1 LED Q is on 4 9 HOWTO CHANGE THE PARAMETER VALUE Enter the Programming mode Select the required parameter with or v Press the SET key to display its value eo and oh LED starts blinking Use a or
8. elay after fast freezing 0 23h50min 0 0 Pr2 ALARMS o G A Temperature alarms configuration rE Pr2 UEC SF Delay of temperature alarm after closing the 0 255 min door nPS Pressure switch number __ 15 0 Pr ANALOGUEINPUTS J O S S QE Evaporator probe calibration f 1202o C Latak 0 P2 ny J y R Ss increasing during the Energy 30 30 Taare 54 F 0 0 Pr2 Saving cycle a DIGITAL INPUTS Open door control no Fan eEE FC Configurable digital input polarity CL OP AUS ES OnF did Digital input alarm delay 0255 min 5 f Pr OTHER o G i i S EL Sof warereleass 20 Pto Mapcos Pe Prd Probes display oo Potes fo f Pr Pr2 Access parameter list doo o oae Dixell s r l 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 XW40L XW40V 4 4
9. he data transfer phase the instrument displays the following messages end for right programming 3 x2 PR 1592009240 XW40L GB r1 0 20 03 02 doc XW40L XW40V 3 4 rel 1 0 cod 159200924 Installing and Operating Instructions 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 10 ALARM SIGNALS Message Cause i P1 Thermostat probe failure Alarm output EE Compressor output according to parameters COn and COF P2 Evaporator probe failure Alarm output ON Other outputs unchanged HA Maximum temperature alarm Alarm output ON Other outputs unchanged LA Minimum temperature alarm Alarm output ON Other outputs unchanged EE dA Door switchalarm JAlarm output ON Other outputs unchanged EAL BAL PAL Pressure switch alarm Alarm output ON Other outputs OFF 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 10 1 SILENCING BUZZER Once the alarm signal is detected the buzzer can be silenced by pressing any key 10 2 EE ALARM The dixell instruments are provided with an
10. 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 10 3 ALARM RECOVERY Probe alarms P1 probe faulty P2 they automatically stop 10s after the probe restarts normal operation Check connections before replacing the probe Temperature alarms HA and LA automatically stop as soon as the thermostat temperature returns to normal values or when the defrost starts Door switch alarm dA stop as soon as the door is closed External alarms EAL BAL stop as soon as the external digital input is disabled Pressure switch alarm PAL alarm is recovered by switching OFF the instrument 11 TECHNICAL DATA Housing self extinguishing ABS Case XW40L facia 38x185 mm depth 76mm XW40V facia 100x64 mm depth 76mm Mounting XW4O0L panel mounting in a 150x31 mm panel cut out with two screws 3 x 2mm Distance between the holes 165mm XW4O0L panel mounting in a 56x72 mm panel cut out with two screws 3x2mm Distance between the holes 40mm Protection IP20 Frontal protection IP65 with optional frontal gasket mod RG L XW40L RGW V XW40V Connections Screw terminal block lt 2 5 mm heat resistant wiring and 6 3mm Faston Power supply 230Vac or 110Vac 10 Power absorption 7VA max Display 3 digits red LED 14 2 mm high Inputs 2 NTC or PTC probes Digital input 1 free voltage Relay outputs Total
11. mostat probe P2 Evaporator probe 112 difference between P1 and P2 P1 P2 DEFROST tdF Defrost type rE electrical heater Compressor OFF in hot gas Compressor and defrost relays ON EdF Defrost mode PR 1592009240 XW40L GB r1 0 20 03 02 doc in interval mode The defrost starts when the time Idf is expired Sd Smartfrost mode The time IdF interval between defrosts is increased only when the compressor is running even non consecutively and only if the evaporator temperature is less than the value in SdF set point for SMARTFROST SdF Set point for SMARTFROST 30 30 C 22 86 F evaporator temperature which allows the IdF counting interval between defrosts in SMARTFROST mode dtE Defrost termination temperature 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 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 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 ma
12. n in the did time is reached switch off and on the instrument to restart normal regulation 6 5 START DEFROST I2F DFR It executes 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 6 6 ENERGY SAVING I2F ES The Energy Saving function allows to change the set point value as the result of the SET HES parmeter sum This function is enabled until the digital input is activated 6 7 REMOTE ON OFF I2F ONF This function allows to switch ON and OFF the instrument 6 8 DIGITAL INPUTS POLARITY The digital input polarity depends on the I2P parameters CL the digital input is activated by closing the contact OP the digital input is activated by opening the contact 7 INSTALLATION AND MOUNTING Instrument XW40L shall be mounted on vertical panel in a 150x31 mm hole and fixed using two screws 3 x 2mm To obtain an IP65 protection grade use the front panel rubber gasket mod RG L Instrument XW40V 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 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 appl
13. ompressor 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 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 Light can work AC Anti short cycle delay 0 30 min interval between the compressor stop and the following restart 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 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 DISPLAY CF Temperature measurement unit C Celsius F Fahrenheit When the measurement unit is changed the SET point and the values of some 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 Lod Local display select which probe is displayed by the instrument P1 Ther
14. point during the Energy Saving cycle DIGITAL INPUTS odc Compressor status when open door no Fan normal CPr F_C Compressor OFF I2P Configurable digital input polarity CL the digital input is activated by closing the contact OP the digital input is activated by opening the contact I2F Digital input operating mode configure the digital input function EAL generic alarm bAL serious alarm mode PAL Pressure switch dFr Start defrost AUS Not used Es Energy Saving onF remote On OFF dor door switch did Time interval delay for digital input alarm 0 255 min Time interval to calculate the number of the pressure switch activation when I2F PAL If I2F EAL or bAL external alarms did parameter defines the time delay between the detection and the successive signalling of the alarm OTHER PbC Type of probe it allows to set the kind of probe used by the instrument PbC PBC probe ntC NTC probe rEL Release software read only Software version of the microprocessor Ptb Parameter table read only it shows the original code of the dix ell parameter map XW40L XW40V 2 4 rel 1 0 cod 159200924 Installing and Operating Instructions Prd Probes display read only display the temperature values of the evaporator probe Pb2 Pr2 Access to the protected parameter list read only 6 DIGITAL INPUTS The XW40L has 1 free contact digital input It is programmable in seven different config
15. r is running FLASHING Programming Phase flashing with LED h Anti short cycle delay enabled FLASHING Programming Phase flashing with LED i The defrost is enabled iY The Fast Freezing cycle is enabled ON ALARM signal In Pr2 indicates that the parameter is also present in Pr1 The light is on 4 2 HOWTO SEE THE MIN TEMPERATURE E Press and release the key The Lo message will be displayed followed by the minimum temperature recorded By pressing the key or waiting for 5s the normal display will be restored 1 2 3 4 3 HOW TO SEE THE MAX TEMPERATURE 1 2 3 4 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 ST label starts blinking Press and release the a key The Hi message will be displayed followed by the maximum temperature recorded By pressing the key or waiting for 5s the normal display will be restored N B After the installation RESET the temperature stored 4 5 HOWTO SEE AND MODIFY THE SET POINT 1 Push and immediately release the SET key the display will show the Set point value The SET LED start blinking 4 6 TOSTART A MANUAL DEFROST 2 3 To change the Set value push the or arrows within 10s 4 To memorise the new set point value push the SET key again or wait 10s 1 Push the DEF key for more than 2 secon
16. rel 1 0 cod 1592009241 Installing and Operating Instructions WING XW40L XW40V 1 GENERAL WARNING 1 1 A PLEASE 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 n case of failure or faulty operation send the instrument back to the distributor or to Dixell s r l 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 n case of applications in industrial environments the use of mains filters our mod FT in parallel with inductive loads could be useful 2 GEN
17. urations by the 2F parameter 6 1 DOOR SWITCH INPUT I2F DOR It signals the door status and the corresponding relay output status through the odc parameter no Fan normal any change CPr F_C Compressor OFF Since the door is opened after the delay time set through parameter dOA the alarm output is enabled and the display shows the message dA The alarm stops as soon as the external digital input is disabled again During this time and then for the delay dot after closing the door the high and low temperature alarms are disabled 6 2 GENERIC ALARM I2F 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 6 3 SERIOUS ALARM MODE I2F BAL When the digital input is activated the unit will wait for did delay before signalling the BAL alarm message The relay outputs are switched OFF The alarm will stop as soon as the digital input is de activated 6 4 PRESSURE SWITCH I2F PAL If during the interval time set by did parameter the pressure switch has reached the number of activation of the nPS parameter the PAL 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 activatio
18. ximum time between the end of defrost and the restarting of the real room temperature display dSd Start defrost delay 0 99min 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 dAF Defrost delay after fast freezing Qmin 23h 50min after a Fast Freezing cycle the first defrost will be delayed for this time ALARMS 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 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 differential 0 1 25 5 C 1 45 F Intervention differential for temperature alarm set point always positive ALd Temperature alarm delay 0 255 min time interval between the detection of an alarm condition and the corresponding
19. y to probes Let the air circulate by the cooling holes 7 41 XW40V CUT OUT 83 5 7 2 XW40L CUT OUT 7 3 XW40L MOUNTING WITH KEYBOARD COVER OPENING DOWNWARD 7 4 XW40L MOUNTING WITH KEYBOARD COVER OPENING UPWARD 8 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 have a Faston connection 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 Maximum current allowed for all the loads is 20A 8 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 9 USE OF THE PROGRAMMING HOT KEY The Wing units can UPLOAD or DOWN
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