Stop Sequence Flowchart - Deif SGC 421 User Manual

6.3.2

Stop sequence flowchart

NOTE * If a breaker is configured.
User manual 4189341355A EN
1. The genset breaker opens if there is a breaker in the
application.
2. A stop command is given. You can activate the command
with a digital input or Modbus. You can only use the
display buttons in manual mode.
3. The Cool down timer is activated.
4. If the idle mode output is configured, it is activated when
the Cool down timer expires. If idle mode is not
configured, then go to step 7 (stop action).
5. The Stop Idle timer is activated.
6. When the Stop Idle timer is expired, the Stop Action
timer is activated. The fuel relay output, keyswitch
output, genset available output, and Idle mode ON
output are all deactivated before the Stop action timer is
activated.
7. The Stop solenoid output is activated.
8. The output for the Inlet Shutoff Valve (ISV) hold is
activated. The output is deactivated when the Stop
Action timer is expired.
9. When the additional stopping timer is expired, the Stop
Solenoid output is deactivated, and the engine stops.
10. The engine is stopped.
11. If the engine does not stop when the Additional Stopping
timer has expired, the controller shows the Failure to
Stop alarm.
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