4.2.3
Starting the genset
Mode Procedure
AUTO
When the controller is in AUTO mode, the genset start is controlled automatically and the display unit
push-buttons are disabled. If the power management system calculates that more power is required, the
controller automatically starts the genset(s), according to the genset priority order.
SEMI
To start the genset:
1. Operator action: Press
to start the genset.
• System response: The controller runs the start sequence.
◦ If everything is OK, the genset starts.
◦ If the genset does not start, the display unit shows an info message.
Switchboard
control
When the controller is under switchboard control, the display unit push-buttons are disabled. The genset
can only be started locally and/or from the switchboard.
INFO
The switchboard equipment is third-party equipment. The switchboard might not include a button to start the genset.
4.2.4 Stopping the genset
Mode Procedure
AUTO
When the controller is in AUTO mode, the genset stop is controlled automatically and the display unit push-
buttons are disabled. If the power management system calculates that power is not required, the controller
will automatically stop the genset(s), according to the genset priority order.
SEMI
The genset breaker must be open to stop the genset. If the genset breaker is not open, press to open
the breaker before stopping the genset. See Opening the genset breaker for more information.
To stop the genset:
1. Operator action: To stop the genset with a cooldown time, press
once.
• System response: The controller stops the genset after the cooldown time.
• System response: If the genset does not stop, the controller activates an alarm.
2. Operator action: Press again to skip the cooldown time and stop the genset immediately.
• Note: A genset stop without cooldown time increases the mechanical wear of the genset. The genset
may also have problems if it needs to restart immediately. The genset should only be stopped without
cooldown time in emergencies. Contact the genset manufacturer for more information.
• System response: If the genset does not stop, the controller activates an alarm.
Switchboard
control
When the controller is under switchboard control, the display unit push-buttons are disabled. The genset
can only be stopped locally and/or from the switchboard.
INFO
The switchboard equipment is third-party equipment. The switchboard might not include a button to stop the genset.
PPM 300 Operator's manual 4189340910 UK
www.deif.com Page 39 of 157
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