dixell XC660D Installing And Operating Instructions Download

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XC660D

(v. 3.4)

Summary of Contents for XC660D

Page 2: ...D CONNECTIONS 9 5 6 SAFETY AND CONFIGURABLE DIGITAL INPUTS FREE VOLTAGE 9 5 7 CIRCUIT WITH 1 SUCTION AND 1 CONDENSER HP LP PRESSURE SWITCH CONNECTIONS 10 5 8 CIRCUIT WITH 2 SUCTIONS AND 1 CONDENSER HP...

Page 3: ...ROM THE INSTRUMENT UPLOAD 19 16 2 HOW TO PROGRAM AN INSTRUMENT USING A HOT KEY DOWNLOAD 19 17 LIST OF PARAMETERS 20 17 1 PLANT DIMENSIONING AND TYPE OF REGULATION 20 17 2 PROBES CONFIGURATION 24 17 3...

Page 4: ...ADDITIONAL FUNCTIONS 40 22 1 COMPRESSOR RUNNING PROOF FUNCTION 40 22 2 FLOOD PROTECTION FUNCTION 41 22 3 SUCTION SUPERHEAT MONITORING 42 22 4 HOT GAS INJECTION VALVE 43 23 ALARM LIST 43 23 1 TYPES OF...

Page 5: ...ety Precautions 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 avoiding sudden temperature...

Page 6: ...ms or maintenance conditions Each load has its own alarm input that is able to stop it when activated To guarantee the total system s safety there are also two inputs for low and high pressure switche...

Page 7: ...supply cables from the outputs and the power connections Do not exceed the maximum current allowed on each relay 5A resistive in case of heavier loads use a suitable external relay 5 2 Wiring connect...

Page 8: ...ould cause short circuiting or introduce noise disturbance at high frequencies To minimize the induced disturbances use shielded cables with the shield connected to earth Temperature probe it is recom...

Page 9: ...be set by the related parameter iF01 iF08 The first 6 digital inputs are factory pre set to operate as safety input for loads Each input must collect the status of the safety devices related to the co...

Page 10: ...o the terminal 45 common and 46 line The high pressure switch has to be connected to the terminal 45 common and 44 line as shown on the following wiring diagram NOTE the main voltage is related to the...

Page 11: ...dBUS address 1 Terminals 31 and 32 2 Use shielded twisted cable For example Belden 8762 o 8772 or cat 5 cables 3 Maximum distance 1Km 4 Don t connect the shield to the earth or to GND terminals of the...

Page 12: ...r290 r448 r448A r449 r449A r450 r450A r513 r513 1234 r1234ze 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...

Page 13: ...arameter will be displayed Do the same things for the Probe 2 FA04 FA20 parameters 8 User interface 8 1 Displaying UPPER DISPLAY LOWER DISPLAY ICONS Suction temperature or pressure Discharge temperatu...

Page 14: ...d 1 2Hz or Load 1 in maintenance status 2Hz ON Load 2 on Flashing Load 2 is waiting to start 1HZ or digital input alarm for Load 2 2Hz or Load 2 in maintenance status 2Hz ON Load 3 on Flashing Load 3...

Page 15: ...ns PRE ACTION 1 Set the kind of refrigerant by means of the FtyP parameter see 7 1 How to set the kind of gas 2 Set the measurement unit dEU par 3 Check and if necessary modify the set point limits LS...

Page 16: ...the set point to the controller SSC2 Supervising Set for circuit 2 if supervising system is sending the set point to the controller SStF Supervising Set for fan if supervising system is sending the se...

Page 17: ...abled an output during a maintenance session means to exclude the output from the regulation 12 1 How to disabled an output during a maintenance session 1 Push the MAINTENANCE CLOCK key for 3s 2 The L...

Page 18: ...pushed the key for some seconds till the rSt label starts flashing and the lower display shows zero To exit push the CLOCK key or wait 30 sec NOTE if the SET key is released within 2s the controller r...

Page 19: ...OFF the instrument remove the Hot Key then turn it ON again 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...

Page 20: ...ow superheat oA i HGi NOTE also the dGS 6dG dGst values are present These values must not be used COMPRESSORS CONFIGURATION According to the oA1 oA2 oA3 oA4 oA5 oA6 configuration 2 kinds of plant can...

Page 21: ...6 FAn Plant with 4 compressors without fans oA1 CPr1 oA2 CPr1 oA3 CPr1 oA4 CPr1 oA4 nu oA6 nu Plant with 1 frequency compressor 2 standard compressors and inverter for fans oA1 InC1 oA2 CPr1 oA3 CPr1...

Page 22: ...th inverter for fans oA1 CPr1 oA2 CPr1 oA3 CPr1 oA4 CPr1 oA5 inF oA6 nu AOC tEn AOF InF if the inverter requires digital input to start regulation Plant with 1 frequency compressor 2 standard compress...

Page 23: ...ctivated with close contacts of the relay PC1 PC6 Capacity of compressor 1 6 for setting the capacity of single compressors It s used only if CtyP dPo Insert in each parameter the capacity of the comp...

Page 24: ...rm 38 40 in 39 gnd ntc NTC 10K probe use term 38 40 PA04 Adjustment of read out for the Probe 1 used only if P1c Cur or tEn Corresponding to 4mA or 0 5V input signal given by the suction probe 1 0 PA2...

Page 25: ...ing 22 23 nP not used nt10 NTC 10K nt86 NTC 86K O4 Probe 4 calibration the range depends on the dEU parameter dEU C 12 0 12 0 dEU F 200 200 17 2 5 Probe selection second suction circuit 2CPb Probe sel...

Page 26: ...nput is activated by opening the contact CL the digital input is activated by closing the contact iP02 Digital input 2 polarity 13 15 oP the digital input is activated by opening the contact CL the di...

Page 27: ...E The controller automatically converts values of set points and parameters referred to the pressure temperature when the dEU parameter is changed In any case check the value of the parameters referre...

Page 28: ...switched ON 0 99 5 min res 10s Maon Maximum time for compressor ON 0 24 h with 0 this function is disabled If a compressor keeps staying on for the MAon time it s switched off and it can restart afte...

Page 29: ...HAL PSI 58 HAL F It s independent from the set point When the value LAL is reached the A03C alarm is enabled possibly after the tAo delay time HAL High pressure temperature alarm compressor section Th...

Page 30: ...on 2 0 6 PoPr Capacity engaged with faulty probe 0 100 it s used only if CtyP dPo 17 9 Alarms fans section LAF Low pressure alarm fans section The measurement unit depends on the dEU parameter FA04 HA...

Page 31: ...stop ASH4 yES it restarts when SH ASH2 ASH5 ASH6 Delay to restart regulation after superheat ASH2 ASH5 0 255 min If the regulation is stopped because of low superheat alarm it can restart when SH ASH2...

Page 32: ...to the maximum value of analog output 10V or 20mA 50 0 150 0 C 58 302 F AOM Minimum value for analog output 1 4 20mA or 0 10V AOt Time of analog output 1 at max after the start 0 15s MPM Maximum vari...

Page 33: ...vated oP opened when activated oFF Switching ON OFF enabling from keyboard no disabled yES enabled It permits the switching ON OFF of the instrument by pressing the SET key for more than 4s bUr Buzzer...

Page 34: ...ation stops when the pressure temperature comes back into the neutral zone In the following a simplify example that explains the regulation in neutral zone for compressor homogeneous with 1 step for e...

Page 35: ...EM CAPACITY 1 ON 10 2 ON 15 3 ON ON 25 4 ON 30 5 ON 40 6 ON ON 45 7 ON ON 50 8 ON ON 55 9 ON ON ON 65 10 ON ON 70 11 ON ON ON 80 12 ON ON ON 85 13 ON ON ON ON 95 The transition between the various ste...

Page 36: ...C2 stp C3 stp C4 stp Step 1 25 ON OFF ON ON Step 2 50 ON ON OFF ON Step 3 75 ON ON ON OFF Step 4 100 ON ON ON ON 21 Fan regulation The fan regulation band Pb is divided by the number of fans The numbe...

Page 37: ...ations and Parameters Parameter Description Action oA i inF Set 1 relay for inverter One relay is used to enable the action of the inverter AoC tEn Analog output setting Set the output as 0 10V AoF In...

Page 38: ...of probe failure 0 100 SAO 21 2 Analog output free This setting is used to link the analog output 1 to a temperature probe The analog output will take values proportional to the temperatures detected...

Page 39: ...En AoF FrE AOP P3 LAO 20 UAO 40 Aot 0 AOM 30 MPM 100 P3 Volt 10 0 AOM 100 10 LAO UAO LAO UAO LAO AOT 100 a Set the kind of signal of the analog output current 4 20ma or voltage 0 10V by the Analog out...

Page 40: ...t set as Co1 Co6 has not been activated by d1d d4d time The compressor 1 4 is switched off and the safety timers start Automatic when safety timers are over LC01 LC06 Running proof alarm with manual r...

Page 41: ...he relay will be disabled once the compressors can restart see scheme To enable this function set one relay by the parameters oA2 or oA3 or oA4 or oA5 or oA6 as flood protection EI oA4 Liq and then co...

Page 42: ...g the value of the suction probe P1 and the probe set in the parameter ASH9 The SH is available after 1 minute since at least one compressor is running 22 3 2 Low superheat signalling and actions Cont...

Page 43: ...onditions a With ASH9 nP none probe set as SH probe and one relays set as HGi valve for hot gas injection the configuration error is displayed no Probe For SH and the relay set as HGi is never activat...

Page 44: ...PrESEnt None probe has been set for to manage the fan Check parameters FPb P1C P2C P3C and then set a probe for this function No P3 ProbE For Lin out None probe has been set for the Liquid Injection f...

Page 45: ...the suction temperature pressure is less than ELP value all the compressors are switched off The instrument restarts the standard operating mode when pressure temperature increases 23 1 3 E0H1 E0L1 P...

Page 46: ...is allowed by pressing the DOWN key for 3s or by turning off and on the instrument 23 1 5 EA1 EA6 Compressors and fans safeties alarm Terminals WARNING THESE TERMINALS REQUIRE A FREE OF VOLTAGE CONNE...

Page 47: ...table Code Description Cause Action Reset E01L E02L Low electronic pressure switch alarm suction 1 suction 2 Pressure temperat ure less than ELP ELP2 value All compressors of the circuit 1 2 are turne...

Page 48: ...ts working P3 P3 probe failure alarm Probe 3 failure or out of range With P3 used for circuit 2 the compressors are activated according to the 2SPr The functions related to the third probe are disable...

Page 49: ...d for the hour set in the SEr parameter signaling only Manually reset the running hour of the compressor see par 13 Running hours of loads EA External alarm The configurable dig Input set as EA is act...

Page 50: ...ory EEPROM Kind of action 1B Pollution grade normal Software class A Operating temperature 10 60 C Storage temperature 25 80 C Relative humidity 20 85 no condensing Measuring range NTC probe 40 110 C...

Page 51: ...0 5 Pr2 4mA or 0 5V readout for P1 probe 1 0 PA20 BAR 15 PA20 PSI 100 PA20 KPA PA20 11 0 Pr2 20mA or 4 5V readout for P1 probe PA04 61 0 BAR PA04 885 PSI PA04 6100 KPA CAL 0 0 Pr2 P1 probe offset 12...

Page 52: ...P05 cL Pr2 Safety input for Load 5 polarity 19 20 OP CL iP06 cL Pr2 Safety input for Load 6 polarity 19 21 OP CL iP07 cL Pr2 Configurable digital input i1F polarity 22 23 OP CL iP08 cL Pr2 Configurabl...

Page 53: ...tage stays ON 0 99 5 min 10sec MAon 0 Pr2 Maximum time a stage stays switched ON 0 24 hour FdLy no Pr2 don delay enabled also for the first request no yES FdLF no Pr2 doF delay enabled also for the fi...

Page 54: ...tch activations time suction 2 0 255 min 2SPr 1 Pr2 Number of compressors ON with faulty probe suction 2 0 6 PoPr 50 Pr2 Capacity engaged with suction 1 probe failure 0 100 LAF 0 0 Pr1 Low pressure al...

Page 55: ...AOt 0 Pr2 Time with analog output 1 at max when after exceeding AOM 0 15s MPM 100 Pr2 Maximum variation per minute analog output 1 nu 1 100 SAO 50 Pr2 Percentage of analog output 1 in case of probe fa...

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