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XC660D
(v. 3.4)

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Summary of Contents for dixell XC660D

  • Page 1 XC660D (v. 3.4)
  • Page 2: Table Of Contents

    HECK THE SW REL OF THE GENERAL WARNING LEASE READ BEFORE USING THIS MANUAL AFETY RECAUTIONS GENERAL DESCRIPTION PROBES RELATED TO THE XC660D PP07, PP11, PP30 PP50: 4÷20 PRESSURE TRANSDUCERS NP4-67: PIPE MOUNTING TEMPERATURE PROBE WIRING & ELECTRICAL CONNECTIONS ENERAL WARNINGS IRING CONNECTIONS –...
  • Page 3 EVEN CAPACITY COMPRESSORS (CTYP = SPO) – D 18.1 OMPRESSORS APACITY EAD BAND CONTROL UNEVEN CAPACITY COMPRESSORS (CTYP = DPO) SCREW COMPRESSORS (CTYP = SCR) 20.1 EGULATION WITH SCREW COMPRESSORS LIKE ITZER ANBELL EFCOMP ETC FAN REGULATION 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 4 LOOD PROTECTION FUNCTION 22.3 UCTION SUPERHEAT MONITORING 22.4 OT GAS INJECTION VALVE ALARM LIST 23.1 YPES OF ALARMS AND SIGNALING MANAGED 23.2 UZZER MUTING – 23.3 LARM CONDITIONS SUMMARY TABLE TECHNICAL FEATURES PARAMETERS – DEFAULT VALUES 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 5: Before Proceeding

    • The instrument must not be opened. • In 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. • Consider the maximum current which can be applied to each relay (see Technical Data).
  • Page 6: Probes Related To The Xc660D

    3. General description The XC660D is designed to manage both compressors and fans in a condensing system such as a pack. The compressors can be scroll or Stream, simple or multistage. It’s possible to manage up to 2 suction circuits with a common condenser.
  • Page 7: Wiring & Electrical Connections

    120V version: use terminals 47-48 for power supply: Terminals 44-45-46 operate at 120V 24V version: use terminals 47-48 for power supply; 90-260V version: use terminals 47-48 for power supply: Terminals 44-45-46 operate at the same voltage 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 8: R Emote Keyboard Connection

    5.3 Remote keyboard connection – Only for XC660D -7x0xx- or XC660D -7x2xx- **** ONLY FOR THE MODELS WITH 90-260Vac POWER SUPPLY IDENTIFIED BY THE FOLLOWING PART NUMBERS: XC660D -7x0xx- or XC660D -7x2xx-**** The VC660, remote keyboard for XC600D series, can be connected only to the models with the above part numbers.
  • Page 9: Load Connections

    16-18 iF05 = oA5 Load 6 11-12 16-18 iF06 = oA6 5.6.2 Configurable digital inputs. The controller XC660D is provided with 2 additional configurable digital inputs, the first one can operate also as probe. 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 10: Circuit With

    5.8.1 Suction 2: connection of the Low Pressure switch, The LP2 low pressure switch of circuit 2, must be a free of voltage signal. To manage it, set: i8F = LP2 and then connect it to the terminals 22-24. 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 11: A Nalog Output Connection

    6. Mounting & installation The instruments are suitable only for internal use. Instrument XC660D shall be mounted on an omega DIN rail The ambient operating temperature range is between -10÷60°C. Avoid locations subject to heavy vibration, corrosive gases or excessive dirt. The same applies to the probes.
  • Page 12: First Installation

    NOTE: the set value is stored even when the procedure is exited by waiting the time-out to expire. 7.2 How to set the range of the pressure probes If an instrument with the following part number is used: XC660D – xxxxF, it is pre-set to work with pressure probe with the following range: Suction Probe : -0.5 ÷11.0 bar (relative pressure);...
  • Page 13: User Interface

    In programming mode: it browses the parameter codes or increases the displayed value. With Hot key inserted: it starts the Hot key programming procedure. To access the INFO menu: push and release it to access the INFO menu. (DOWN) 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 14 One or more loads have been placed in maintenance status Low pressure switch alarm High pressure switch alarm Alarm is happening All the stored alarms have been seen. Flashing A new alarm has happened 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 15: How To See And Modify The Set Point(S

    The INFO menu is accessible by pushing and releasing the UP key: Here below the list of the information that can be displayed: NOTE: this information is displayed only if the related function is enabled 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 16: Xc660D Gb R3.4 04.09.2017.Docx

    NOTE: the set value is stored even when the procedure is exited by waiting the time-out to expire. 11.2 How to enter in parameters list “Pr2” The “Pr2” parameter list is protected by a security code (Password). SECURITY CODE is 3210 To access parameters in “Pr2”: 1. Enter the “Pr1” level. 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 17: H Ow To Change Parameter Values

    If an output is disabled its led blinks (2 Hz) 12.3 Regulation with some outputs disabled. If some outputs are disabled they don’t take part to the regulation, so the regulation goes on with the other outputs. 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 18: Running Hours Of Loads

    To erase the displayed alarm push the “SET” key till the “rSt” label will be displayed in the Lower Display, NOTE the running alarms cannot be erased.. To erase the whole Alarm Menu, hold pressed the “SET” key for 10s. 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 19: Keyboard Locking

    “Hot key” to abort the operation. The unit can UPLOAD or DOWNLOAD the parameter list from its own E2 internal memory to the “Hot Key” and vice-versa. 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 20: List Of Parameters

    17. List of parameters 17.1 Plant dimensioning and type of regulation. The XC660D is pre-set to drive a rack with 3 compressors and 3 fans. oA1 (term. 1-2), oA2 (term. 3-4), oA3 (term. 5-6), oA4 (term. 7-8), oA5 (term. 9-10), oA6 (term.
  • Page 21 = InC1, oA2 = CPr1, oA3 = CPr1, oA4 = inF, oA5 = nu, oA6 = nu, AOC = tEn AOF = InC1 2AOC = tEn 2AOF = inF 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 22 + 2 standard compressors and 3 fans: oA1 = InC1, oA2 = CPr1, oA3 = CPr1, oA4 = FAn, oA5 = FAn, oA6 = FAn, AOC = tEn AOF = InC1 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 23 -50-60°C/-58÷120°F r407F r407F -50-60°C/-58÷120°F r410 r410 -50-60°C/-58÷120°F r507 r507 -70-60°C/-94÷120°F r744 - Co2 -50-30°C/-58÷86°F -70-60°C/-94÷120°F r290 – Propane r290 -50-60°C/-58÷120°F r448 r448A -45-60°C/-69÷120°F r449 r449A -45-60°C/-69÷120°F r450 r450A -45-60°C/-69÷120°F r513 r513 -45-60°C/-69÷120°F 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 24: P Robes Configuration

    FA20: Adjustment of read out for the Probe 2 corresponding to 20mA or 4.5V input signal, given by the condensing probe (FA04 ÷ 61.0BAR; FA04 ÷ 885PSI; FA04 ÷ 6100KPA) FCAL: Probe 2 calibration the range depends on the dEU parameter: dEU=bar or °C: -12.0÷12.0; dEU=PSI or °F: -200÷200; 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 25: C Onfigurable Digital Inputs Configuration

    = Safety digital input for load 5, term. 9-10 oA6 = Safety digital input for load 6, term. 11-12 inF = Safety digital input of inverter for fan, used when none relay is configured as inverter for fans 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 26 Digital input set as oA1 or Co1 activation delay (0÷255s), This delay it is considered when i1F or i2F or i3F or i4F or i5F or i6F or i7F or i8F is set as oA1 or Co1 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 27: D Isplay And M Easurement Unit

    The band (or zone) is symmetrical compared to the target set point, with extremes: set- Pbd/2 ÷ set+Pbd/2. It is used as proportional band for PI algorithm. The measurement unit depends on the dEU, CF, PMU par. 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 28: L Iquid Injection Thermostat – Only Screw Compressors

    LiPr parameter, the thermostat relay is given by the relay set as oAi = Lin. Lid: Differential for cooling injection thermostat (0.1 ÷ 10.0) The reference probe is set by LiPr parameter LiPr Probe for cooling injection thermostat: nP: function disabled P3: probe P3 (term. 38-42) 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 29: F Ans Regulation

    C2HA alarm is enabled, (possibly after the 2tAo delay time). 2tAo: Low and High pressure (temperature) alarms delay, compressor section circuit 2: (0÷255 min) time interval between the detection of a pressure (temperature) alarm condition and alarm signaling. 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 30: A Larms Fans Section

    PEn parameter, for counting interventions of the high pressure-switch.. Number of fans engaged with faulty probe. (0÷#fans). 17.10 Suction superheat of circuit 1 ASH0 Differential for low superheat pre-alarm. (0.1 to 30.0°C/ 1 to 60°F). 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 31: D Ynamic Set Point For Fan

    External band width for dynamic set point (-50.0 ÷ 50.0°C; -90 ÷ 90°F) dSEd Set point differential for dynamic set point: (-20.0÷20.0°C; -50.0÷50.0PSI; - 300÷300°F) Fan 1 Set point SEtF SETF+dSEd dSES dSES+dSEb Temperature 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 32: A Nalog Output 1 ( Optional ) – T Erminals 25-26

    1÷100 = it sets the maximum percentage variation per minute of the analog output. 2SAO Percentage of analog output 2 in case of probe failure: (0 ÷ 100%) 2AOH Maximum analog output 2 percentage when silence mode function is enabled (0÷100) 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 33: O Ther

    = buzzer is used in case of alarm Serial address (1 –247) It is used in monitoring system. Adr: Software release for internal use. Parameter table code: readable only. Access to Pr2 parameter level 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 34: Even Capacity Compressors (Ctyp = Spo)

    = no “doF” delay not enabled at first calling after an equilibrium condition. Pressure Compressor inserction area Set + (Pbd/2) neutral zone Time Set - (Pbd/2) Compressor disconnection area Compressor Status C1 On Delay Time functioning Time 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 35: Uneven Capacity Compressors (Ctyp = Dpo)

    If the compressor is not design for a long activation of the 25% capacity valve, an external device able to exclude this situation MUST be used. !!!!! Dixell can’t be considered responsible for possible damages caused from this situation The controller is able to manage only 1 screw compressor, operating on circuit 1.
  • Page 36: R Egulation With Screw Compressors Like B Itzer / H Anbell / R Efcomp Etc

    The algorithm switch on and off the loads according to the running hours of each load. In this way the running hours are balanced. Example 4 Fans: oA2 =FAn; oA3 = FAn; oA4 = FAn; oA6 = FAn: rot = yES rotation enabled 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 37 To start the fan the controller supplies 10V after the start output for 5s, then starts standard regulation MPM = 100 Maximum % variation per The analog output takes 1 min to move from minute the min to the maximum 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 38 It’s the end scale of the analog output UAO = 40 Temperature value associated to the maximum value of analog output (10V) AOM =0 Minimum value for analog The minimum voltage is 0V. output 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 39 Set the end scale temperature by UAO parameter, at which correspond the maximum value of analog output Set the max % variation per min (MPM) At last set also the percentage of analog output in case of probe failure: (0 ÷ 100%)SAO 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 40 After 5 consecutive alarms, the alarms move from automatic restart to manual restart and it must be reset by Keyboard, of by switching off and on the controller. 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 41 If the compressors are activated in fix sequence, (Sty = no), and the compressor that has to be activated is locked by safety timers, the relay set as flood protection is switched on till the safety timers are over. 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 42 The superheat is less Regulation depends on ASH4: Automatic: superheat than: SH< ASH2 for ASH4 = no: regulation not affected. when superheat: allarm ASH3 time ASH4 = yes: regulation is stopped. SH> ASH5 + ASH2 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 43 Second probe configuration. When these parameters are set in wrong way an alarm message is generated: the label A12 is shown on the upper display, while the lower display the following messages are shown: 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 44 “inC2” them as “inC2” out For InC2 More than one oAi has • Check the oAi parameters and set only too MAnY InF been set as inF (inverter 1 as “inF”. for fan) 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 45 The instrument restart the standard operating mode when the input is disabled. If there are PnF activation in the PiF time, only manual resetting is allowed, by pressing the DOWN key for 3s or by turning off and on the instrument. 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 46 In case of P2 fault, number of fans engaged depends on the FPr parameter If the P3 or P4 probes are used for dynamic set point The function is disabled and only the standard set point is used. Recovery Automatic as soon as probe restarts working. 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 47 Manually (if PEn activation happened in the PEi time) When the input is disable: hold pressed the Restart(DOWN)key for 3s turn off and on the instrument.. The compressors restarts working according to the working algorithm. 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 48 C1-LA Minimum Suction pressure or signaling only Automatically: as soon as the pressure or pressure temperature lower temperature reaches the (LAL+ differential) value. (temperature) than (differential = 0.3bar or 1°C) alarm LAL value compressors section 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 49 The superheat is Regulation depends Automatic: superheat less than: SH< on ASH4: when superheat: allarm ASH2 for ASH3 ASH4 = no: SH> ASH5 + ASH2 time regulation not affected. ASH4 = yes: regulation is stopped. 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 50 Liq - HGi Load 3 configuration nu - CPr1 - CPr2 - StP - dGS - 6dG - dGSt - InC1 - InC2 - FAn - InF - LIn – ALr – CPr1 Liq - HGi 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 51 - OA1- OA2 - OA3 - OA4 - OA5 - OA6 - (terminals 13-14) InF - LP1 - LP2 - HP - ES - OFF - LL - SIL – iF01 EAL – Co1 – Co2 – Co3 – Co4 – Co5 – Co6 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 52 - P1 - P2 - P3 - P4 - StC1 - StC2 - SEtF dSP2 Lower display: pressure or temperature tMP - PrS dEU2 selection Proportional band for compressors 0.1÷30.0(°C); 1÷50 (°F); 0.1÷10.0(BAR); regulation, suction 1 1÷150(PSI) 10÷1000(KPA) Band offset, suction 1 -12.0÷12.0(°C) -20÷20(°F) -12.0÷12.0(BAR); -200÷ 200(PSI) 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 53 Time delay between the insertion of two 0 ÷ 255 (sec) different fan Time delay between switching off of two 0 ÷ 255 (sec) different fan Minimum set point (fan) -50.0÷HSF(°C) -58.0÷HSF(°F) 10.0 FA04(FPb)÷HSF(BAR , PSI , KPA) 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 54 Superheat value to enable hot gas injecting valve 0.1÷30.0°C/ 1÷60°F ASH7 Differential for ASH7 0.1÷15.0°C/ 1÷30°F ASH8 Probe selection for superheat monitoring nP(0) - P3(1) - P4(2) ASH9 Dynamic Set point function enabled nP – P3 - P4 dSEP 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...
  • Page 55 Polarity alarm relay OP - CL off function enabled no - yES Buzzer enabled no - yES Serial address 1 ÷ 247 Release firmware Readable only Parameter table code Readable only Pr2 access Readable only 1592001850 XC660D GB r3.4 04.09.2017.docx XC660D...

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