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Operating instructions

cod. 1592001300

1592001300 XC440C gb r1.0 07.06.2004.doc

rel. 1.0

Page

25 / 28

19. Wiring connections

8(3)A250V

8(3)A

8(3)A

8(3)A

8(3)A

Ho

t K

ey

LOAD4

LOAD3

LOAD2

LOAD1

ALARM

Inp ut

4÷ 20 m A

Probe:
PP11 / PP30: Brown (5), White (4)
PTC/NTC: 3-4

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Содержание xc440c

Страница 1: ...Electronic Controller for Compressor Racks XC440C Instructions Manual...

Страница 2: ...MODIFY THE SET POINT OF COMPRESSORS OR FANS 8 6 PARAMETERS PROGRAMMING 9 6 1 HOW TO ENTER THE PR1 PARAMETER LIST 9 6 2 HOW TO ENTER IN PARAMETERS LIST PR2 9 6 3 HOW TO CHANGE PARAMETER VALUES 9 7 HOW...

Страница 3: ...ULATION 15 12 6 FANS REGULATION 16 12 7 ALARMS COMPRESSOR SECTION 16 12 8 ALARMS FANS SECTION 16 12 9 OTHER 17 13 TYPE OF REGULATION 18 13 1 DEAD BAND ONLY FOR COMPRESSORS 18 13 2 PROPORTIONAL BAND FO...

Страница 4: ...and the power supply are separated and far enough from each other without crossing or intertwining Fit the probe where it is not accessible by the end user In case of applications in industrial envir...

Страница 5: ...gas among the following r22 R22 r404 R404A 507 R507 134 134 r717 ammonia 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...

Страница 6: ...e 1 if the probe detects relative pressure 8 Push the SET key to confirm the value Next parameter will be displayed Do the same things for the Probe 2 FA04 FA20 parameters 3 3 How to set the kind of d...

Страница 7: ...To enter the Alarm menu In programming mode it browses the parameter codes or increases the displayed value With Hot key inserted it starts the Hot key programming procedure 8 8 DOWN In programming mo...

Страница 8: ...ds have been placed in maintenance status ON Alarm is happening ON All the stored alarms have been seen Flashing A new alarm has happened 5 How to see and modify the set point 5 1 How to see the set p...

Страница 9: ...r display 3 Press the SET key the value of the parameter will start blinking 4 Use UP or DOWN to change the value 5 Press SET to store the new value and move to the following parameter To exit Press S...

Страница 10: ...With compressor with more steps all the LED s linked to the compressor and the valves are switched on 3 Select the output by pressing the UP or DOWN key 4 To modify the status of the output push the S...

Страница 11: ...n 2s the controller reverts to display the running hours of the selected loads 9 Alarm Menu The controller memorises the last 20 alarms happened together with their duration To see the alarm codes see...

Страница 12: ...and then turn the Controller ON 3 Automatically the parameter list of the Hot Key is downloaded into the Controller memory the doL message is blinking followed a by flashing End 4 After 10 seconds the...

Страница 13: ...Compressor with 3 steps oA1 cPr oA2 StP oA2 StP If an oAi set as step without any previous oAi set as cPr the configuration alarm CStP will be activated If compressor with different capacities are us...

Страница 14: ...A input signal given by the suction probe 0 31 bar or 0 450 PSI or 0 3100KPA Warning set a value correspondent to absolute pressure If the transducer measures relative pressure increase the range of 1...

Страница 15: ...bar or 14 PSI 12 5 Compressors regulation Pbd Proportional band or neutral zone width 0 10 5 00bar 0 5 30 C or 1 80PSI 1 50 F The band or zone is symmetrical compared to the target set point with extr...

Страница 16: ...the maximum acceptable value for set point 12 7 Alarms compressor section PAo Alarm probe exclusion at power on it is the period starting from instrument switch on before an alarm probe is signalled 0...

Страница 17: ...ion in the fans section and alarm signalling FPr Number of fans engaged with faulty probe 0 fans 12 9 Other tbA Alarm relay silencing by pushing one of the keypad buttons no alarm relay stays on yES a...

Страница 18: ...on stops when the pressure temperature come back into the neutral zone In the following a simplify exemplum that explains the regulation in neutral zone for compressor homogeneous with 1 step for each...

Страница 19: ...regulation band all the compressors are on if the pressure temperature is lower than the regulation band all the compressors are off Naturally also for this regulations all the delays don and doF safe...

Страница 20: ...mounted on panel in a 29x71 mm hole and fixed using the special brackets supplied To obtain an IP65 protection grade use the front panel rubber gasket mod RG C as shown in figure The ambient operatin...

Страница 21: ...use a suitable external relay 15 1 Probes connection Pressure probe 4 20 mA respect the polarity If using terminal ends be sure there are no bear parts which could cause short circuiting or introduce...

Страница 22: ...mperature 0 60 C Storage temperature 25 60 C Relative humidity 20 85 no condensing Measuring range NTC probe 40 110 C Resolution 0 1 C or 1 C Accuracy ambient temp 25 C 0 7 C 1 digit 18 Alarm list Usu...

Страница 23: ...is turn off Parameters ALIP It establishes if the input is activated by closing ALIP cL or by opening ALIP oP the terminals Actions Every time one input is activated the corresponding output is turned...

Страница 24: ...Minimum pressure temperature alarm for compressors Suction pressure or temperature lower than SET_C LAL value signalling only Automatically as soon as the pressure or temperature reaches the Set_C LAL...

Страница 25: ...od 1592001300 1592001300 XC440C gb r1 0 07 06 2004 doc rel 1 0 Page 25 28 19 Wiring connections 8 3 A250V 8 3 A 8 3 A 8 3 A 8 3 A Hot Key LOAD4 LOAD3 LOAD2 LOAD1 ALARM Input 4 20mA Probe PP11 PP30 Bro...

Страница 26: ...ation no 0 yES 1 PbC Cur Cur Cur Cur Pr2 Probe 1 setting Cur 0 Ptc 1 ntc 2 PA04 0 5 7 0 5 7 Pr2 Adjustment of read out for the Probe at 4mA 0 0 PA20 BAR 0 PA20 PSI PA20 12 0 174 12 0 174 Pr2 Adjustmen...

Страница 27: ...15 15 15 15 Pr2 Time delay between the insertion of two different fans 0 255 sec FoF 5 5 5 5 Pr2 Time delay between switching off of two different fans 0 255 sec LSF 10 50 7 2 100 Pr2 Lower set for fa...

Страница 28: ...no no no Pr2 Switching ON OFF enabling from keyboard no 0 yES 1 Ad1 1 1 1 1 Pr2 Compressors address 1 247 Ad2 1 1 1 1 Pr2 Fans address 1 247 rEL Pr1 Software release read only Ptb Pr1 Parameter table...

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