40
Owner’s Manual for MGG450
Troubleshooting
Alarm
Definition
BOC IDMT
Indicates current IDMT protection activation. Current IDMT protection is
inverse definite minimum time protection which is based on the generator
current. Protection reaction time depends on overcurrent value. High over-
current means short reaction time whereas low overcurrent means longer
reaction time. Protection is based on setpoints Generator protect: 2Inom
del and Basic settings: Nomin current.
MPR Imains IDMT
Indicates current IDMT protection activation. Current IDMT protection is
inverse definite minimum time protection which is based on the mains cur-
rent. Protection reaction time depends on overcurrent value. High overcur-
rent means short reaction time whereas low overcurrent means longer
reaction time.
This protection is active if the Mns2Inom prot setpoint is set to ENABLED.
Protection is based on setpoints Mains protect: Mains2Inom del and Basic
settings: Nomin current.
BOR IbusL IDMT
Indicates current IDMT protection activation. Current IDMT protection is
inverse definite minimum time protection which is based on the left bus
current. Protection reaction time depends on overcurrent value. High over-
current means short reaction time whereas low overcurrent means longer
reaction time.
This protection is active if the BusL2Inom prot setpoint is set to ENABLED.
Protection is based on setpoints BusL protect: BusL2Inom del and Basic
settings: Nomin current.
BOC ShortCurr
Generator short current protection was activated. Generator current was
over Generator protect: Ishort level for Ishort del. time.
BOC Overload
Indicates overload IDMT protection activation. Overload IDMT protection
is inverse definite minimum time protection which is based on the genera-
tor power. Protection reaction time depends on generator power value.
High generator overload means short reaction time whereas low generator
overload means longer reaction time. Protection is based on setpoints
Generator protect: OverldStrtEval and 2POverldStEvDel.
MPR Pmains IDMT
Indicates overload IDMT protection activation. Overload IDMT protection
is inverse definite minimum time protection which is based on the mains
power. Protection reaction time depends on mains power value. High
mains overload means short reaction time whereas low mains overload
means longer reaction time.
This protection is active if the Mns2POvrldProt setpoint is set to
ENABLED. Protection is based on setpoints Mains protect: OverldStrtEval
and 2POverldStEvDel.
BOR PbusL IDMT
Indicates overload IDMT protection activation. Overload IDMT protection
is inverse definite minimum time protection which is based on the left bus
power. Protection reaction time depends on the left bus power value. High
left bus overload means short reaction time whereas low left bus overload
means longer reaction time.
This protection is active if the BusL2POvrldProt setpoint is set to
ENABLED. Protection is based on setpoints BusL protect: OverldStrtEval
and 2POverldStEvDel.
BOC NCB fail
NCB fail is detected if the NeutralCB fdb input doesn't follow Neutral CB C/
O output
within 400 ms.
Wrn BadPwrCfg
Power format is set differently in controllers which are part of the same
control group. Check Power formats setting in GenConfig on the Miscella-
neous card (available in the Advanced mode only).
Содержание MGG450
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Страница 53: ...Owner s Manual for Generator 49 Wiring Diagrams and Service Log Relay Connections ...
Страница 54: ...50 Owner s Manual for Generator Wiring Diagrams and Service Log AC Connections ...
Страница 55: ...Owner s Manual for Generator 51 Wiring Diagrams and Service Log Control Panel Layout ...
Страница 56: ...52 Owner s Manual for Generator Wiring Diagrams and Service Log Control Faceplate ...
Страница 57: ...Owner s Manual for Generator 53 Wiring Diagrams and Service Log CAN Wiring ...
Страница 58: ...54 Owner s Manual for Generator Wiring Diagrams and Service Log Receptacle ...