Manual 37365A GCP-30 Series Packages - Genset Control
© Woodward Page 81/179
Start/Stop Ramp, Open GCB With F2 Alarm
Parameter 112
Add-on/off ramp
max.time 000s
Start/stop ramp 0 to 999 s
The add-on/add-off timer can be used to influence two functions:
Stopping: The maximum amount of time generator should take to shed all load is
configured here. If the generator load fails to drop below 3 % of the generator rated
power (Parameter 21) within the amount of time configured, the GCB is opened re-
g
ardless of the load.
Start with soft loading: If the mains interchange (import/export) real power value
fails to reach 0 kW while in the "INTERCHANGE" breaker logic within the time
configured here, an F1 class alarm and alarm message are issued. Concurrently the
relay, which is programmed with relay manager function 78 (Appendix B), is
enabled and the MCB is prevented from opening.
Parameter 113
Open GCB with F2
max.time 000s
Max. permissible time with F2 alarms for starting an additional engine 0 to 999 s
Prerequisite: Load sharing (Parameter 90) and automatic start/stop (Parameter 95 or
Parameter 96) are configured to "ON". The generat
or is operating in an isolated pa-
rallel application and at least one additional generator is connected to a busbar.
If an F2 class alarm occurs, the engine shutdown may be delayed by the time confi-
gured here. This delay time should be configured so that an additional engine may be
started and brought online to assume the load from the generator with the F2 alarm.
After the configured delay time expires the engine with the F2 alarm condition will
shutdown regardless if an additional engine was able to start and assume the load.
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