dixell XC706M Instruction Manual

dixell XC706M Instruction Manual

Electronic controller for compressor racks

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Electronic Controller for
Compressor Racks
XC706M
Instructions Manual

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Table of Contents
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Summary of Contents for dixell XC706M

  • Page 1 Electronic Controller for Compressor Racks XC706M Instructions Manual...
  • Page 2: Table Of Contents

    Types of alarms and signalling managed ________________________________ 17 11.2 Alarm muting______________________________________________________ 18 11.3 Alarm conditions – summary table _____________________________________ 18 WIRING CONNECTIONS____________________________________________ 19 12.1 Digital inputs and outputs ____________________________________________ 19 PARAMETERS – DEFAULT VALUES__________________________________ 21 rel. 1.0 1592011000 XC706M GB 31-08-2001 Pa. 2 / 23...
  • Page 3: General Warning

    2. General description The XC706M controller is thought to manage compressors in a system such as a pack. The compressors can be simple, multistage or with different capacities. Control is by means of a neutral zone or proportional band and is based on the pressure or temperature sensed in the LP suction (compressors) circuits.
  • Page 4: User Interface

    It scrolls the parameter codes or increases the value of the displayed variable. Holding it pressed will increase the speed. Down It scrolls the parameter codes or decreases the value of the displayed variable. Holding it pressed will increase the speed. rel. 1.0 1592011000 XC706M GB 31-08-2001 Pa. 4 / 23...
  • Page 5: Displaying, Setting And Modifying The Normal And Reduced Set Point

    “R” led blinks). To exit: press the “SET” key till the “N” and “R” LED’s are turned off or wait for the Exit time out (30 s). rel. 1.0 1592011000 XC706M GB 31-08-2001 Pa. 5 / 23...
  • Page 6: Programming

    = output disabled for compressor with more steps the LED’s linked to the compressor (red) and the valves (green) blink together. Select the output by pressing the UP key. rel. 1.0 1592011000 XC706M GB 31-08-2001 Pa. 6 / 23...
  • Page 7: Displaying Running Hours Of Loads

    Hold pressed the CLEAR key (alarm section) till the display shows zero. Repeat the operation for other loads TO EXIT: press the HRS key or wait for 30 sec without pressing any key. Alarm section 3.7.1 User interface &/($5 rel. 1.0 1592011000 XC706M GB 31-08-2001 Pa. 7 / 23...
  • Page 8: Hot Key For Programming

    “doL” message is blinking. At the end the “End” message will be displayed and after 10 seconds the instrument will restart working with the new parameters. Remove the “Hot Key”. rel. 1.0 1592011000 XC706M GB 31-08-2001 Pa. 8 / 23...
  • Page 9: Upload (From The Instrument To The "Hot Key")

    PC1 ..PC6 Power of compressor 1...6: for setting the power of single compressors. Available only if CtyP=0. The power is identified by a value (range 1÷255) proportional to the capacity of single compressor. rel. 1.0 1592011000 XC706M GB 31-08-2001 Pa. 9 / 23...
  • Page 10 0=valve enabled with open contact; 1= valve enabled with closed contact. 5.1.4 Security code PSc: Security code to access the configurations parameters. (0÷255). With “0” the security code is disabled rel. 1.0 1592011000 XC706M GB 31-08-2001 Pa. 10 / 23...
  • Page 11: Operative Parameters - Compressors Section

    FdLy: “don” delay enabled also for the first call. If enabled the triggering of the step is delayed for a “don” value, respect to the call. (no = “don” not enabled; yES=”don” enabled) rel. 1.0 1592011000 XC706M GB 31-08-2001 Pa. 11 / 23...
  • Page 12 PEI: Pressure-switch interventions time (0÷15 min) Interval, linked to the Pen parameter, for counting interventions of the low pressure-switch.. CPP: compressor management with faulty probe (A01C) 0 = maintaining the resource entered at the moment of the failure rel. 1.0 1592011000 XC706M GB 31-08-2001 Pa. 12 / 23...
  • Page 13: Relations Amount Parameters

    1 step for each compressors. The safety times onon, oFon and donF are not considered. In the real regulation the a load is entered or turned off only if these times are over. rel. 1.0 1592011000 XC706M GB 31-08-2001 Pa. 13 / 23...
  • Page 14: Proportional Band

    (temperature) is lower than the regulation band all the compressors are off. Naturally also for this regulations all the delays (don and doF) safety times (onon, oFon and donF) are valid. rel. 1.0 1592011000 XC706M GB 31-08-2001 Pa. 14 / 23...
  • Page 15: Mounting & Installation

    The ambient operating temperature range is between 0÷55°C. Avoid locations subject to heavy vibration, corrosive gases or excessive dirt. The same applies to the probes. Ensure ventilation around the instrument. rel. 1.0 1592011000 XC706M GB 31-08-2001 Pa. 15 / 23...
  • Page 16: Electrical Connections

    Operating temperature: 0÷55°C Storage temperature: -30÷85 °C Resolution: 1/100 Bar for suction , 1/10 Bar for condensing Accuracy: better than 1% of F.S. RTC back up battery: up to 48h rel. 1.0 1592011000 XC706M GB 31-08-2001 Pa. 16 / 23...
  • Page 17: Alarm List

    1 =entering the resources established by means of SPr or PoPr parameters. SPr: number of steps engaged with faulty probe. (0÷CpnU) It’s used only if CtyP=1. PoPr: capacity engaged with faulty probe (0÷255) It’s used only if CtyP=0. rel. 1.0 1592011000 XC706M GB 31-08-2001 Pa. 17 / 23...
  • Page 18: Alarm Muting

    6XFWLRQ SUREH 3UREH IDLOXUH RU RXW RI $XWRPDWLFDOO\ DV VRRQ DV WKH 7KH FRPSUHVVRUV DUH IDLOXUH DODUP UDQJH SUREH UHVWDUWV ZRUNLQJ DFWLYDWHG DFFRUGLQJ WR WKH &33 63U RU 3R3U SDUDPHWHUV rel. 1.0 1592011000 XC706M GB 31-08-2001 Pa. 18 / 23...
  • Page 19: Wiring Connections

    1 - 2: ALARM RELAY: normally open, it’s close when alarm happens or the instrument is switched OFF. 3 - 4: Safety relay: normally open, it’s close when the instrument looses the control or is switched OFF rel. 1.0 1592011000 XC706M GB 31-08-2001 Pa. 19 / 23...
  • Page 20   $ 4 4 4 5 4 6 4 7 4 8 4 9 5 0 5 1 5 2 53 5 4 55 0DLQ /RDG /RDG /RDG /RDG /RDG /RDG rel. 1.0 1592011000 XC706M GB 31-08-2001 Pa. 20 / 23...
  • Page 21: Parameters - Default Values

    ·  QR VHFXULW\ FRGH (compressors) 2SHUDWLYHSDUDPHWHUVFRPSUHVVRUVVHFWLRQ Minutes · Hours +R8U · Day of month · Day of week QG$< 6XQ 6XQGD\ 0RQ 0RQGD\ WX( 7XHVGD\ 8HG :HGQHVGD\ WKX 7KXUVGD\ )UG )ULGD\ 6$W 6DWXUGD\ rel. 1.0 1592011000 XC706M GB 31-08-2001 Pa. 21 / 23...
  • Page 22 ·+6( ZLWK 3E& 17& Maximum set point (compressors)  /6(·3$ ZLWK 3E& &XU /6(· ZLWK 3E& 17& Reduced set point start time 6WU6 ·K Reduced set point stop time 63U6 ·K rel. 1.0 1592011000 XC706M GB 31-08-2001 Pa. 22 / 23...
  • Page 23 Dixell s.r.l. =, 9LD GHOO¶,QGXVWULD    3LHYH G¶$OSDJR %/ ,7$/< WHO        ID[        KWWSZZZGL[HOOFRP (PDLO GL[HOO#GL[HOOFRP rel. 1.0 1592011000 XC706M GB 31-08-2001 Pa. 23 / 23...

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