Mode Procedure
AUTO
To change to AUTO mode from SEMI mode:
1. Operator action: Press
to select AUTO mode.
• System response: The LED next to is green when the controller is in AUTO mode.
You cannot change from switchboard control to AUTO mode using the display unit push-buttons. If the
controller is under switchboard control, you must first change to AUTO/SEMI mode by changing the
switchboard control selector (on the switchboard) to PMS.
SEMI
To change to SEMI mode from AUTO mode:
1. Operator action: Press
to select SEMI mode.
• System response: The LED next to is green when the controller is in SEMI mode.
You cannot change from switchboard control to SEMI mode using the display unit push-buttons. If the
controller is under switchboard control, you must first change to AUTO/SEMI mode by changing the
switchboard control selector (on the switchboard) to PMS control.
Switchboard
control
To change to switchboard control, the controller can be in either AUTO or SEMI mode.
To change to switchboard control:
1. Operator action: Change the switchboard control selector (on the switchboard) to switchboard control.
• System response: For safety reasons, whenever there is a connected GENSET controller under
switchboard control (that is, the genset is running and the generator breaker is closed), all the
GENSET controllers in AUTO mode are automatically changed to SEMI mode.
◦ This means that the automatic power management functions (automatic genset start or stop, and
automatic breaker close and open) are no longer active for any GENSET controllers.
◦ Each controller will however still trip the breaker(s) and/or stop the genset if the operating conditions
activate an alarm that trips the breaker(s) and/or stops the genset.
CAUTION
If you change the last GENSET controller that is in AUTO mode to SEMI mode, the power management system
cannot automatically start or stop any gensets, or open or close any breakers.
INFO
The switchboard equipment is third-party equipment. The switchboard control selector labels may therefore be
different from the names used above.
PPM 300 Operator's manual 4189340910 UK
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