Manual 37278B GCP-30 Series - Genset Control
© Woodward Page 113/174
NOTE
If "Sprinkler operation" (terminal 6) has been activated, class F2 and F3 alarms are converted to class
F1 alarms (exception: terminal 34 or 61 and overspeed).
Class F2 and class F3 alarms Class F1 alarm
"Sprinkler shutdown F1 active": Parameter 241 permits the user to select whether the Sprinkler alarm classes
are activ
e during the Sprinkler coasting or if the primary alarm class will be active after the Sprinkler (critical
mode) request (terminal 6) has terminated.
A distinction is made between three operating conditions:
1.) MCB is closed
( mains voltage available):
a) The engine is stopped: The engine will be started and
the GCB will not be closed.
b) The engine runs with the GCB open.
2.) MCB is opened
( mains voltage not available and the Parameter 164 "Emergency power" is ON)
a) Th
e GCB will be closed or remains closed.
b) In the event of a generator overload, the GCB will open
Following the alarm acknowledgement the GCB will be closed again.
Figure 3-11: Sprinkler operation
3.) MCB is open
( mains voltage available):
a) The MCB will be synchronized,
b) Following the synchronization of the MCB, the GCB will be opened.
Sprinkler "OFF": Disabling the Sprinkler (critical) mode discrete input (energizing terminal 6) terminates the
Sprinkler ON command and the message "Sprinkler coasting" appears on the display screen. The message
"Sprinkler coasting" appears. The Sprinkler (critical mode) operation is automatically finished 10 minutes later.
Earlier termination can be achieved by the changing into the STOP mode. When the Sprinkler (critical mode)
operation has concluded, fault conditions that result in shutdowns are enabled again.
G M
Sprinkler
pump
GCB
MCB
Mains
Busbar
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