Manual 37128A GCP-20 Series - Genset Control
Page 4/190 © Woodward
CHAPTER 7. FUNCTIONAL DESCRIPTION.................................................................................. 32
Considerations for …............................................................................................................................ 32
… Different Options.................................................................................................................... 32
… Equipment with One Power Circuit Breaker .......................................................................... 32
… Equipment with Induction Generators ................................................................................... 32
Set Point Table ..................................................................................................................................... 33
Control Inputs ....................................................................................................................................... 33
Control Outputs..................................................................................................................................... 35
Clear Text Display ................................................................................................................................ 36
Functional Messages of the Unit................................................................................................ 36
Operational Messages of the Unit.............................................................................................. 37
Start/Stop Procedure ............................................................................................................................ 38
Diesel Engine ............................................................................................................................. 38
Gas Engine................................................................................................................................. 40
Circuit Breaker Operation ..................................................................................................................... 42
GCB Synchronization ................................................................................................................. 42
Close GCB without Synchronization (Dead Bus Operation GCB) ............................................. 43
MCB Synchronization................................................................................................................. 44
Close MCB without Synchronization (Dead Bus Operation MCB)............................................. 45
Opening the GCB ....................................................................................................................... 45
Opening the MCB....................................................................................................................... 45
Power Circuit Breaker Control.................................................................................................... 46
Power Circuit Breaker Monitoring......................................................................................................... 47
Add-On Time Monitoring ............................................................................................................ 47
Circuit Breaker Monitoring.......................................................................................................... 47
Power Circuit Breaker Logic ................................................................................................................. 48
Parallel Switch Logic [GCP-21/22] ............................................................................................. 48
Interchange Switch Logic [GCP-22] ........................................................................................... 48
Closed Transition Switch Logic [GCP-20/22]............................................................................. 49
Open Transition Switch Logic [GCP-20/22] ............................................................................... 49
External Switch Logic ................................................................................................................. 49
Emergency Power [GCP-20/22] ........................................................................................................... 50
Emergency Power Operation ..................................................................................................... 51
Return of the Mains .................................................................................................................... 51
Emergency Power for External Switch Logic ............................................................................. 52
Emergency Power with MCB Malfunction .................................................................................. 52
Sprinkler Operation............................................................................................................................... 53
Power Direction .................................................................................................................................... 54
Load and/or Var Sharing ...................................................................................................................... 55
Schematic Representation of Load Sharing via CAN Bus......................................................... 56
Connection of External Components.................................................................................................... 57
Speed Governor SG 2/SG 2D.................................................................................................... 57
Alarm .................................................................................................................................................... 57
Alarm Classes ............................................................................................................................ 57
Internally Detected Alarms ......................................................................................................... 58
Alarm Acknowledgement............................................................................................................ 58
CHAPTER 8. DISPLAY AND OPERATION.................................................................................... 60
Front Panel ........................................................................................................................................... 60
Button Functions Overview ........................................................................................................ 61
LEDs ..................................................................................................................................................... 62
Push-Buttons ........................................................................................................................................ 64
General / Configuration .............................................................................................................. 64
Operation of The Power Circuit Breakers .................................................................................. 65
Operating Mode Select Switch................................................................................................... 65
LC Display ............................................................................................................................................ 67
First Display Line........................................................................................................................ 67
Second Display Line................................................................................................................... 67
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