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VDH Products MC 785-SC, Руководство по эксплуатации

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Operating manual

 Document nr. :   022091

 Version :   V2.3

MC 785-SC

 Client :   General

 Page :   22 of 32

6.

Function flow

Operation of the Pband on the suction pressure side (Compressor-side):

Overview of the function flow for 4-compressors for the switching up and down of compressors:

Содержание MC 785-SC

Страница 1: ...c nr 022091 Type MANUAL Number of pages 32 Version V2 3 File Do022091 MC785 SC v23 EN wpd Software MC785 SC V2 11 By BJB Date 19 10 2009 VDH Products BV Roden Holland Signed File Doc 02 MC 785 SC Oper...

Страница 2: ...r out of service 7 Resetting operation hours of a particular compressor 7 The DISCHARGE part condenser side 8 Readout selection on the DISCHARGE display 8 Showing status of the condensers 8 Readout or...

Страница 3: ...uction pressure SUCTION with 7 day LEDs 4 digit display for discharge pressure DISCHARGE with 7 day LEDs LED bars 8 LEDs on off and 8 LEDs delay for maximal 8 compressors 8 LEDs on off and 8 LEDs dela...

Страница 4: ...down the controller can be set to the following choices Compressor control On off control with or without valve lifting x stage compressors or Frequency control Condenser control On off control or Fr...

Страница 5: ...ing relay assigned to relay 3 of the first LMS Relay Module Parameter P113 1 3 gives Relay 3 of LMS Relay Module 1 75 valve lifting contact Relay 4 of LMS Relay Module 1 50 valve lifting contact and R...

Страница 6: ...N keys All four numbers must be set to the correct code P 999 and as a last action press the SELECT key If the code is correct the settings of the controller can now be changed The correct password ca...

Страница 7: ...s will not be selected for controlling by the controller Lower LED bar shows which compressor is in failure Readout or changing the suction pressure temperature setpoint By pressing the left SET key t...

Страница 8: ...ill not be selected for controlling by the controller Lower LED bar shows which condenser is in failure Readout or changing the discharge pressure temperature setpoint By pressing the right SET key th...

Страница 9: ...Maximum suction pressure before the first compressor will be switched on without delay Switch on delay for the next step Time delay for next compressor step Time delay for previous compressor step Ty...

Страница 10: ...p sensor alarm Maximum discharge temp sensor failure Everything switches off Offset suction temperature sensor Offset discharge temperature sensor 40 50 0 40 50 0 40 100 0 40 100 0 10 10 0 10 10 0 O C...

Страница 11: ...10 20 0 Parameters for Compressors 1 to 8 P110 P111 P112 P113 P114 P115 P116 P117 P118 P119 P120 P121 P122 P123 Compressor 1 type 0 not present 1 on off 2 2 Cylinder 0 50 100 3 3 Cylinder 0 33 66 100...

Страница 12: ...oil pressure contract input Compressor 2 Operation switch input Pause input Economizer relay 0 6 0 1 300 0 4 7 4 7 4 7 4 4 4nc6 4nc6 4nc6 4nc6 4nc6 4 7 KW S 0 0 1 P150 P151 P152 P153 P154 P155 P156 P1...

Страница 13: ...oil pressure contact input Compressor 4 Operation switch input Pause input Economizer relay 0 6 0 1 300 0 4 7 4 7 4 7 4 4 4nc6 4nc6 4nc6 4nc6 4nc6 4 7 KW S 0 0 1 P190 P191 P192 P193 P194 P195 P196 P19...

Страница 14: ...oil pressure contact input Compressor 6 Operation switch input Pause input Economizer relay 0 6 0 1 300 0 4 7 4 7 4 7 4 4 4nc6 4nc6 4nc6 4nc6 4nc6 4 7 KW S 0 0 1 P230 P231 P232 P233 P234 P235 P236 P2...

Страница 15: ...ailure input Compressor 8 High pressure input Compressor 8 Failure oil pressure contact input Compressor 8 Operation switch input Pause input Economizer relay 0 6 0 1 300 0 4 7 4 7 4 7 4 4 4nc6 4nc6 4...

Страница 16: ...lure input Condenser 4 0 2 4 7 4 7 4 4 4nc6 0 P350 P351 P352 P353 P354 Condenser 5 type 0 Not present 1 On off 2 2 speed 0 50 100 On off relay Condenser 5 Relay for 50 100 Relay is active at 100 drive...

Страница 17: ...s 15 Parameters Software Series number etc P991 P992 P993 P999 Software version no Serial number Production date year week Password 0000 password not active 0000 9999 1234 Key to symbols See table of...

Страница 18: ...5 Relay 6 Relay 7 LMS relay module 2 JP1 without jumper and JP2 with jumper C NO NC C NO C NO C NO C NO NC C NO NC C NO NC 3 1 3 2 3 3 3 4 3 5 3 6 3 7 Relay 1 Relay 2 Relay 3 Relay 4 Relay 5 Relay 6 R...

Страница 19: ...4 3 4 4 Analog output 1 Analog output 2 Analog output 3 Analog output 4 LMS analog module 4 JP1 without jumper and JP2 wihtout jumper 0 10Vdc 0 10Vdc 0 10Vdc 0 10Vdc Table of assignment of digital in...

Страница 20: ...C break NC C break NC C break NC C break 2nc1 2nc2 2nc3 2nc4 2nc5 2nc6 Digital input 1 Digital input 2 Digital input 3 Digital input 4 Digital input 5 Digital input 6 LMS dig in module 2 JP1 without...

Страница 21: ...one no control function E11 High pressure alarm Action None E21 High pressure failure Action Everything off E31 External high pressure failure Action Everything off E41 High temperature alarm Action N...

Страница 22: ...091 Version V2 3 MC 785 SC Client General Page 22 of 32 6 Function flow Operation of the Pband on the suction pressure side Compressor side Overview of the function flow for 4 compressors for the swit...

Страница 23: ...exceeded the error message E 80 will appear The controller will then control with the number of steps calculated up til then It is also possible to use compressors with valve lifting The number of st...

Страница 24: ...asing compressors When two or more steps result in the same capacity the step leading to the switching down of the fewest compressors is selected If the steps are then still equal the step with the sh...

Страница 25: ...model Compressor 2 on off 2KW model Compressor 3 on off 4KW model Total x on KW x on KW x on KW KW 1 0 0 0 0 0 2 x 1 0 0 1 14 3 0 x 2 0 2 29 4 x 1 x 2 0 3 43 5 0 0 x 4 4 57 6 x 1 0 x 4 5 71 7 0 x 2 x...

Страница 26: ...Operating manual Document nr 022091 Version V2 3 MC 785 SC Client General Page 26 of 32 7 Front view Front of MC 785 SC wall mounting drawing 001718 Front of MC 785 SC panel mounting drawing 021842...

Страница 27: ...ing manual Document nr 022091 Version V2 3 MC 785 SC Client General Page 27 of 32 8 Diagrams of connections Connection diagram for MC 785 SC wall mounting drawing 001735 Connection diagram for RS485 n...

Страница 28: ...Operating manual Document nr 022091 Version V2 3 MC 785 SC Client General Page 28 of 32 Connection diagram for MC 785 SC panel mounting drawing 021841...

Страница 29: ...Operating manual Document nr 022091 Version V2 3 MC 785 SC Client General Page 29 of 32 Connection diagram for LMS modules for MC785 SC drawing 001822...

Страница 30: ...Operating manual Document nr 022091 Version V2 3 MC 785 SC Client General Page 30 of 32 Connections LMS 7x RELAY SC MODULE 901 000409...

Страница 31: ...Operating manual Document nr 022091 Version V2 3 MC 785 SC Client General Page 31 of 32 10 Dimensions Dimensions of MC785 SC panel mounting model drawing 940024...

Страница 32: ...Operating manual Document nr 022091 Version V2 3 MC 785 SC Client General Page 32 of 32 Dimensions of MC785 SC wall mounting drawing 961271...

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