dIXEL
 1592020032 Installing and Operating Instructions 4. FRONT PANEL COMMANDS Digital controller with off cycle defrost and Fan Control XR30CX CONTENTS 1. GENERAL WARNING ____________________________________________________1 2. GENERAL DESCRIPTION ________________________________________________1 3. CONTROLLING LOADS __________________________________________________1 4. FRONT PANEL COMMANDS ______________________________________________1 5. MAX & MIN TEMPERATURE MEMORIZATION _______________________________1 6. MAIN FUNCTIONS ______________________________________________________2 7. PARAMETERS _________________________________________________________2 9. TTL SERIAL LINE – FOR MONITORING SYSTEMS____________________________2 11. INSTALLATION AND MOUNTING __________________________________________3 12. ELECTRICAL CONNECTIONS _____________________________________________3 13. HOW TO USE THE HOT KEY______________________________________________3 14. ALARM SIGNALS _______________________________________________________3 : To display target set point; in programming mode it selects a parameter or confirm an 15. TECHNICAL DATA ______________________________________________________3 operation. 16. CONNECTIONS_________________________________________________________3 17. DEFAULT SETTING VALUES______________________________________________3 (DEF) To start a manual defrost 1. GENERAL WARNING (UP): To see the max. stored temperature; in programming mode it browses the parameter codes or increases the displayed value. 1.1 PLEASE READ BEFORE USING THIS MANUAL (DOWN) To see the min stored temperature; in programming mode it browses the • This manual is part of the product and should be kept near the instrument for easy and parameter codes or decreases the displayed value. quick reference. O/I To turn ON or OFF the controller (if enabled) • The instrument shall not be used for purposes different from those described hereunder. It cannot be used as a safety device. • Check the application limits before proceeding. KEY COMBINATIONS: + To lock & unlock the keyboard. 1.2 SAFETY PRECAUTIONS + To enter in programming mode. • Check the supply voltage is correct before connecting the instrument. • Do not expose to water or moisture: use the controller only within the operating limits + 
 To return to the room temperature display. avoiding sudden temperature changes with high atmospheric humidity to prevent formation of condensation • Warning: disconnect all electrical connections before any kind of maintenance. 4.1 CONTROL OF EVAPORATOR FANS • Fit the probe where it is not accessible by the End User. The instrument must not be The fan control mode is selected by means of the “FnC” parameter: opened. FnC = C_n: fans will switch ON and OFF with the compressor and not run during defrost; • In case of failure or faulty operation send the instrument back to the distributor or to “Dixell FnC = o_n fans will run even if the compressor is off, and not run during defrost; S.p.A.” (see address) with a detailed description of the fault. After defrost, there is a timed fan delay allowing for drip time, set by means of the “Fnd” • Consider the maximum current which can be applied to each relay (see Technical Data). parameter. • Ensure that the wires for probes, loads and the power supply are separated and far enough FnC = C_Y fans will switch ON and OFF with the compressor and run during defrost; from each other, without crossing or intertwining. FnC = o_Y fans will run continuously also during defrost • In case of applications in industrial environments, the use of mains filters (our mod. FT1) in An additional parameter “FSt” provides the setting of temperature, detected by the evaporator parallel with inductive loads could be useful. 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”. 2. GENERAL DESCRIPTION Model XR30CX, format 32 x 74 mm, is a digital thermostat with off cycle defrost designed for 4.1.1 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 refrigeration applications at normal temperature. It provides two relay outputs, one for the parameters the fans can carry out on and off cycles even if the compressor is switched off. When compressor, the other one can be used as light, for alarm signalling or as auxiliary output.. It is also provided with 1 or 2 NTC probe inputs the first one for temperature control, the second one, the compressor is stopped the fans go on working for the Fon time. With Fon =0 the fans remain always off, when the compressor is off. This increases humidity in the system. optional, to connect to the HOT KEY terminals to signal the condenser temperature alarm or to display a temperature. The digital input can operate as third temperature probe. 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 dIXEL
monitoring units of X-WEB family. 4.2 USE OF LEDS It allows to program the controller by means the HOT KEY programming keyboard. Each LED function is described in the following table. The instrument is fully configurable through special parameters that can be easily programmed through the keyboard. LED MODE FUNCTION ON Compressor enabled 3. CONTROLLING LOADS Flashing Anti-short cycle delay enabled ON Defrost enabled 3.1 COMPRESSOR Temper. ON An alarm is occurring The regulation is performed according to the temperature °C/°F ON Measurement unit measured by the thermostat probe SET °C/°F Flashing Programming phase with a positive differential from the set point: if the temperature Time increases and reaches set point plus Compr. differential the compressor is started ON and then turned off when the temperature reaches the set point 5. MAX & MIN TEMPERATURE MEMORIZATION value again. In case of fault in the thermostat probe the start and stop of the compressor are timed through parameters “COn” and “COF”. 5.1 HOW TO SEE THE MIN TEMPERATURE 1. Press and release the n key. 3.2 DEFROST 2. The “Lo” message will be displayed followed by the minimum temperature recorded. Defrost is performed through a simple stop of the compressor. Parameter “IdF” controls the 3. By pressing the n key again or by waiting 5s the normal display will be restored. interval between defrost cycles, while its length is controlled by parameter “MdF”. Vinotemp XR30CX.doc Vinotemp XR30CX 1/3 dIXEL
 1592020032 Installing and Operating Instructions 7. PARAMETERS 5.2 HOW TO SEE THE MAX TEMPERATURE 1. Press and release the o key. REGULATION 2. The “Hi” message will be displayed followed by the maximum temperature recorded. Hy Differential: (0,1 ÷ 25,5°C / 1÷255 °F) Intervention differential for set point. Compressor Cut 3. By pressing the o key again or by waiting 5s the normal display will be restored. IN is Set Point + differential (Hy). Compressor Cut OUT is when the temperature reaches the set point. 5.3 HOW TO RESET THE MAX AND MIN TEMPERATURE RECORDED LS Minimum set point: (- 50°C÷SET/-58°F÷SET): Sets the minimum value for the set point. US Maximum set point: (SET÷110°C/ SET÷230°F). Set the maximum value for set point. 1. Hold press the SET key for more than 3s, while the max. or min temperature is displayed. Ot Thermostat probe calibration: (-12.0÷12.0°C; -120÷120°F) allows to adjust possible offset (rSt message will be displayed) of the thermostat probe. 2. To confirm the operation the “rSt” message starts blinking and the normal temperature will COn Compressor ON time with faulty probe: (0÷255 min) time during which the compressor is be displayed. active in case of faulty thermostat probe. With COn=0 compressor is always OFF. 6. MAIN FUNCTIONS 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 6.1 HOW TO SEE THE SETPOINT CF Temperature measurement unit: °C=Celsius; °F=Fahrenheit. WARNING: When the 1. Push and immediately release the SET key: the display will show measurement unit is changed the SET point and the values of the parameters Hy, LS, US, the Set point value; Ot, ALU and ALL have to be checked and modified if necessary). 2. Push and immediately release the SET key or wait for 5 seconds to rES Resolution (for °C): (in = 1°C; dE = 0.1 °C) allows decimal point display. display the probe value again. dLy Display delay: (0 ÷20.0m; res.10sec) when the temperature increases, the display is updated of 1 °C/1°F after this time. 6.2 HOW TO CHANGE THE SETPOINT 1. Push the SET key for more than 3 seconds to change the Set point value; DEFROST 2. The value of the set point will be displayed and the “°C” or “°F” LED starts blinking; IdF Interval between defrost cycles: (0÷120h) Determines the time interval between the 3. To change the Set value push the o
or n arrows within 10s. beginning of two defrost cycles. 4. To memorise the new set point value push the SET key again or wait 10s. MdF (Maximum) length for defrost: (0÷255min) When P2P = n, (not evaporator probe: timed defrost) it sets the defrost duration, when P2P = y (defrost end based on temperature) it sets the maximum length for defrost. 6.3 HOW TO START A MANUAL DEFROST dFd Temperature displayed during defrost: (rt = real temperature; it = temperature at defrost Push the DEF key for more than 2 seconds and a manual defrost will start; SEt = set point; dEF = “dEF” label) start. dAd MAX display delay after defrost: (0÷255min). Sets the maximum time between the end of defrost and the restarting of the real room temperature display. 6.4 HOW TO CHANGE A PARAMETER VALUE FANS To change the parameter’s value operate as follows: FnC Fans operating mode: C-n= runs with the compressor, OFF during defrost; 1. Enter the Programming mode by pressing the Set + n keys for 3sec (the “°C” or “°F” LED o-n = continuous mode, OFF during defrost; starts blinking). C-Y = runs with the compressor, ON during defrost; 2. Select the required parameter. Press the “SET” key to display its value o-Y = continuous mode, ON during defrost; 3. Use “UP” or “DOWN” to change its value. Fon Fan ON time: (0÷15 min) with Fnc = C_n or C_y, (fan activated in parallel with 4. Press “SET” to store the new value and move to the following parameter. compressor). it sets the evaporator fan ON cycling time when the compressor is off. With To exit: Press SET + UP or wait 15sec without pressing a key. Fon =0 and FoF ≠ 0 the fan are always off, with Fon=0 and FoF =0 the fan are always off. NOTE: the set value is stored even when the procedure is exited by waiting the time-out to FoF Fan OFF time: (0÷15 min) with Fnc = C_n or C_y, (fan activated in parallel with expire. 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. 6.5 THE HIDDEN MENU (PR2) The hidden menu Includes all the enabled parameters of the instrument. ALARMS 6.5.1 HOW TO ENTER THE HIDDEN MENU ALC Temperature alarms configuration: (Ab; rE) 1. Enter the Programming mode by pressing the Set + n keys for 3 sec. (the “°C” or “°F” LED Ab= absolute temperature: alarm temperature is given by the ALL or ALU values. rE = starts blinking). temperature alarms are referred to the set point. Temperature alarm is enabled when the temperature exceeds the “SET+ALU” or “SET-ALL” values. 2. Released the keys, then push again the Set +n keys for more than 7sec. The Pr2 label will ALU MAXIMUM temperature alarm: (SET÷110°C; SET÷230°F) when this temperature is be displayed immediately followed from the HY parameter. reached the alarm is enabled, after the “ALd” delay time. NOW YOU ARE IN THE HIDDEN MENU. ALL Minimum temperature alarm: (-50.0 ÷ SET°C; -58÷230°F when this temperature is 3. Select the required parameter. reached the alarm is enabled, after the “ALd” delay time. 4. Press the “SET” key to display its value AFH Differential for temperature alarm recovery: (0,1÷25,5°C; 1÷45°F) Intervention 5. Use o
or n to change its value. differential for recovery of temperature alarm. 6. Press “SET” to store the new value and move to the following parameter. ALd Temperature alarm delay: (0÷255 min) time interval between the detection of an alarm To exit: Press SET + o
or wait 15sec without pressing a key. condition and alarm signalling. NOTE1: if no parameters are present in Pr1, after 3sec the “noP” message is displayed. Keep the keys pushed till the Pr2 message is displayed. OTHER NOTE2: the set value is stored even when the procedure is exited by waiting the time-out to Adr Serial address (1÷244): Identifies the instrument address when connected to a ModBUS expire. compatible monitoring system. dP1 Thermostat probe display 6.5.2 HOW TO MOVE A PARAMETER FROM THE HIDDEN MENU TO THE rSE Real set point: (readable only), it shows the set point used during the energy saving cycle FIRST LEVEL AND VICEVERSA. or during the continuous cycle. Each parameter present in the HIDDEN MENU can be removed or put into “THE FIRST LEVEL” rEL Software release for internal use. (user level) by pressing “SET + n”. Ptb Parameter table code: readable only. In HIDDEN MENU when a parameter is present in First Level the decimal point is on. 8. TTL SERIAL LINE – FOR MONITORING SYSTEMS 6.6 HOW TO LOCK THE KEYBOARD The TTL serial line, available through the HOT KEY connector, allows by means of the external 1. Keep pressed for more than 3 sec the UP + DOWN keys. TTL/RS485 converter, XJ485-CX, to connect the instrument to a monitoring system ModBUS- 2. The “POF” message will be displayed and the keyboard will be locked. At this point it will be RTU compatible such as the X-WEB500/3000/300. possible only to see the set point or the MAX or Min temperature stored 3. If a key is pressed more than 3s the “POF” message will be displayed. 9. X-REP OUTPUT – OPTIONAL As optional, an X-REP can be connected to the instrument, trough the HOY KEY connector. 6.7 TO UNLOCK THE KEYBOARD The X-REP output EXCLUDES the serial connection. Keep pressed together for more than 3s the o
 and n keys, till the “Pon” message will be To connect the X-REP to the instrument displayed. the following connectors must be used CAB-51F(1m), CAB-52F(2m), CAB- 55F(5m), Vinotemp XR30CX.doc Vinotemp XR30CX 2/3 dIXEL
 1592020032 Installing and Operating Instructions Power absorption: 3VA max 10. INSTALLATION AND MOUNTING Display: 3 digits, red LED, 14,2 mm high; Inputs: Up to 3 NTC. Instrument XR30CX shall be mounted on vertical panel, in a Digital input: free voltage contact 29x71 mm hole, and fixed using the special bracket supplied. Relay outputs: compressor SPST 16A/96A 250Vac FAN: SPDT 8(3) A, 250Vac The temperature range allowed for correct operation is32 - Data storing: on the non-volatile memory (EEPROM). 140 °F. Avoid places subject to strong vibrations, corrosive Kind of action: 1B; Pollution grade: 2;Software class: A.; gases, excessive dirt or humidity. The same Rated impulsive voltage: 2500V; Overvoltage Category: II recommendations apply to probes. Let air circulate by the Operating temperature: 0÷60 °C;Storage temperature: -30÷85 °C. cooling holes. Relative humidity: 20÷85% (no condensing) Measuring and regulation range: NTC probe: -40÷110°C (-40÷230°F); Resolution: 0,1 °C or 1°C or 1 °F (selectable); Accuracy (ambient temp. 25°C): ±0,7 °C ±1 11. ELECTRICAL CONNECTIONS digit The instrument is provided with screw terminal block to connect cables with a cross section up to 2 2,5 mm . Before connecting cables make sure the power supply complies with the instrument’s 15. CONNECTIONS 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 15.1 XR30CX – 16A COMPRESSOR heavier loads use a suitable external relay. 11.1 PROBE CONNECTION 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. 12. HOW TO USE THE HOT KEY 12.1 HOW TO PROGRAM A HOT KEY FROM THE INSTRUMENT (UPLOAD) 1. Program one controller with the front keypad. 2. When the controller is ON, insert the “Hot key” and push o key; the "uPL" message appears followed a by flashing “End” 3. Push “SET” key and the End will stop flashing. 4. Turn OFF the instrument remove the “Hot Key”, then turn it ON again. 120Vac supply: connect to the terminals 7 and 8. NOTE: the “Err” message is displayed for failed programming. In this case push again o key if you want to restart the upload again or remove the “Hot key” to abort the operation. 16. DEFAULT SETTING VALUES 12.2 HOW TO PROGRAM AN INSTRUMENT USING A HOT KEY (DOWNLOAD) Label Name Range °F 1. Turn OFF the instrument. Set Set point LS÷US 55 - - - 2. Insert a programmed “Hot Key” into the 5 PIN receptacle and then turn the Controller Hy Differential 0,1÷25.5°C/ 1÷ 255°F 4 Pr2 ON. LS Minimum set point -50°C÷SET/-58°F÷SET 50 Pr2 3. Automatically the parameter list of the “Hot Key” is downloaded into the Controller US Maximum set point SET÷110°C/ SET ÷ 230°F 65 Pr2 memory, the “doL” message is blinking followed a by flashing “End”. Ot Thermostat probe calibration -12÷12°C /-120÷120°F 0 Pr2 4. After 10 seconds the instrument will restart working with the new parameters. 5. Remove the “Hot Key”.. COn Compressor ON time with faulty 0 ÷ 255 min 15 Pr2 probe NOTE the message “Err” is displayed for failed programming. In this case turn the unit off and COF Compressor OFF time with faulty 0 ÷ 255 min 30 Pr2 then on if you want to restart the download again or remove the “Hot key” to abort the operation. probe CF Temperature measurement unit °C ÷ °F °F Pr2 13. ALARM SIGNALS in=integer; dE= dec.point rES Resolution (only in °C) in Pr2 Message Cause Outputs dLy Display temperature delay 0 ÷ 20.0 min (10 sec.) 1:00 Pr2 1 ÷ 120 hours IdF Interval between defrost cycles 24 Pr2 “P1” Room probe failure Compressor output acc. to par. “Con” and 0 ÷ 255 min “COF” MdF (Maximum) length for defrost 30 Pr2 rt, it, SEt, DEF dFd Displaying during defrost it Pr2 “HA” Maximum temperature alarm Outputs unchanged. dAd MAX display delay after defrost 0 ÷ 255 min 30 Pr2 “LA” Minimum temperature alarm Outputs unchanged. Fnc Fan operating mode C-n, o-n, C-y, o-Y c-n Pr2 “CA” Serious external alarm All outputs OFF. Fon Fan on time with compressor off 0÷15 (min.) 5 Pr2 (i1F=bAL) FoF Fan off time with compressor off 0÷15 (min.) 15 Pr2 rE= related to set; ALc Temperat. alarms configuration rE Pr2 Ab = absolute 13.1 ALARM RECOVERY Set÷110.0°C; Set÷230°F ALU MAXIMUM temperature alarm 10 Pr1 Probe alarms P1”, start a few seconds after the fault in the related probe; they automatically stop -50.0°C÷Set/ -58°F÷Set ALL Minimum temperature alarm 10 Pr1 a few seconds after the probe restarts normal operation. Check connections before replacing the AFH Differential for temperat. alarm (0,1°C÷25,5°C) (1°F÷45°F) probe. Temperature alarms “HA”, “LA” automatically stop as soon as the temperature returns to 5 Pr2 recovery normal value. ALd Temperature alarm delay 0 ÷ 255 min 120 Pr2 Alarm “CA” (with i1F=PAL) recovers only by switching off and on the instrument. Adr Serial address 0÷247 1 Pr2 13.2 OTHER MESSAGES onF on/off key enabling nu, oFF; ES OFF Pr2 dP1 Room probe display -- -- Pr2 Pon Keyboard unlocked. rEL Software release -- -- Pr2 PoF Keyboard locked noP In programming mode: none parameter is present in Pr1 Ptb Map code -- -- Pr2 On the display or in dP2, dP3, dP4: the selected probe is nor enabled noA None alarm is recorded. 14. TECHNICAL DATA Housing: self extinguishing ABS. Case: XR30CX frontal 32x74 mm; depth 60mm; Dixell S.p.A. Mounting: XR30CX panel mounting in a 71x29mm panel cut-out Distributed by: Weiss Instruments, Inc. Protection: IP20; Frontal protection: XR30CX IP65 905 Waverly Ave. Holtsville, NY 11742 631-207-1200 www.weissinstruments.com 2 Connections: Screw terminal block ≤ 2,5 mm wiring. www.dixell.com Power supply: 110Vac ±10%, 50/60Hz Vinotemp XR30CX.doc Vinotemp XR30CX 3/3