• AUTO-RUN (Press AUTO and RUN together for a system start signal). All generator sets in the system start and run, close
to bus, synchronize, parallel, share load, etc. Some generator sets may shut down after a period of time (indicated by
Generator Management) but they remain in Standby Mode ready to start and run if needed.
• AUTO-OFF (Press AUTO and OFF together to remove a system start signal, if AUTO-RUN is active). All generator sets in
the system open their breakers, enter engine cooldown, shut down, and enter Standby Mode. Closing the remote start
contacts has no affect. Generator sets in the system will enter Standby Mode.
Note:
Pressing AUTO and OFF together only stops the generator sets if there are no other system start signals present.
Start Signal
A start signal includes the following:
• Remote start signal via contacts 3 and 4. An ATS (used during a power outage, exercise period, etc.) or a remote panel
used in the vessel take precedence over all other start signals.
• System Start (AUTO-START). Press AUTO and RUN simultaneously to send a start signal.
• Communications-based start message from SiteTech™ or a CAN-based remote panel.
Hardwired contacts (remote start contacts 3 and 4) have priority over all other start signals. If the remote start contacts are
activated, the generator sets in the system that are in AUTO, will start and run. If the generator sets were already running, they
will remain running but the original source of that start signal will be ignored. The contacts now have control.
Note:
The alarm horn sounds and the Not-In-Auto Warning display appears whenever the generator set is not in the AUTO mode.
Note:
The transient start/stop function of the controller prevents accidental cranking of the rotating engine. The generator set stops
and recranks when the OFF/RESET button is momentarily pressed and then the RUN button is pressed.
Note:
The controller provides up to 30 seconds of programmable cyclic cranking and up to 60 seconds rest with up to 6 cycles. The
default setting is 15 seconds cranking and 15 seconds rest for 3 cycles. Make cyclic cranking adjustments using SiteTech™
software.
Stop Signal
A stop signal includes the following:
• Removal of start signal via contacts 3 and 4. An ATS (used during a power outage, exercise period, etc.) or a remote panel
used in the vessel take precedence over all other start signals.
• System Stop (AUTO-OFF). Press AUTO and OFF simultaneously to send a stop signal to cancel the system start.
Note:
This will not do anything if the system start is not active or if the system is receiving a start signal from another source. Press
AUTO and OFF on any controller in the system.
• Communications-based stop message from SiteTech™ or a CAN-based remote panel.
Engine Cooldown
Cooldown is a state where the generator is running at no load to allow hot engine components time to cool slowly before the
engine is stopped. In paralleling applications, this occurs with the circuit breaker open.
When the generator set is running in AUTO mode (AUTO-RUN), an engine cooldown cycle begins when the remote start input
is deactivated. Also, if stopping due to a stop signal, a cooldown cycle begins.
If the Cooldown Override is disabled (OFF) in the Generator Configuration Menu, coolant temperature is ignored. The generator
will enter cooldown when the start signal is removed, only if the engine control switch is in AUTO. The engine will run for a period
of time equal to the Cooldown Delay parameter setting, regardless of the coolant temperature.
If the Cooldown Override is enabled (ON) in the Generator Configuration Menu, coolant temperature will be considered for
cooldown. The generator will enter cooldown when the start signal is removed, only if the engine control switch is in AUTO.
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