Murphy EMS-GC10, Operator'S Manual

Page: 82 / 183

Section 75 00-02-0878
2013-03-07 - 76 -
Engine Running
Fail Class Action
Alarm Horn
Relay
Alarm
Display
Trip Of Gen.
Breaker
Trip Of Mains
Breaker
Cooling-
Down Genset
Stop
Genset
1 Block X X
2 Warning X X
3 Trip GB X X X
4 Trip + stop X X X X X
5 Shutdown X X X X
6 Trip MB X X X
7 Trip MB/GB X X (X) X
The table illustrates the action of the fail classes. If, for instance, an alarm has been
configured with the "shutdown" fail class, the following actions occur.
•
The alarm horn relay will activate
•
The alarm will be displayed in the alarm info screen
•
The generator breaker will open instantly
•
The genset is stopped instantly
•
The genset cannot be started (see next table)
NOTE: The fail class "Trip MB/GB" will only trip the generator
breaker if there is no mains breaker present.
Engine Stopped
Fail Class Action Block Engine Start Block MB Sequence Block GB Sequence
1 Block X
2 Warning
3 Trip GB X X
4 Trip + stop X X
5 Shutdown X X
6 Trip MB X
7 Trip MB/GB (X) X (X)
NOTE: In addition to the actions defined by the fail classes, it is
possible to activate one or two relay outputs if additional relays are
available in the unit.
NOTE: The fail class "Trip MB/GB" will only block engine start and
GB sequence if no mains breaker is present.