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Operation 4-3MN2415
Operating Procedures
The engine−generator controller is designed to start and stop an engine from either a local
mode “Manual Run” or remote mode “Auto Start”. When a start command is issued, the controller
issues a run and crank output signal. The controller then monitors engine speed and when crank
disconnect speed is reached, the crank signal is terminated. While the engine accelerates to
normal speed, the controller continuously monitors the engines speed signal. Should the engine
speed exceed the maximum predetermined setpoint, the Overspeed shutdown fault circuit will
activate, terminating the run signal.
In addition to Overspeed shutdown, other engine functions are also monitored and the engine will
automatically stop for any shutdown fault. The engine will also stop, or when the remote start
signal is removed or local Stop is pressed. The engine controller operation includes time delay
circuits for normal operating conditions such as start delays, cool down and cranking periods.
Manual Start/Stop All models.
Push the Manual Run button to immediately initiate the engine crank cycle to start the engine
and generate AC power. This mode does not require a start command from a remote device but
operates immediately when the button is pushed. When pushed, the following happens:
1. The Engine Crank cycle begins.
2. When the engine starts and accelerates to nominal speed, the controllers speed sensor
will terminate the Engine Crank cycle.
Manually Stop the Generator−Set at anytime by simply pushing the “Stop” button. The
controllers RUN output will be immediately terminated which will initiate the engine stop
sequence.
Automatic Start/Stop All models.
Push the “Auto−Start” push−button. The following happens:
1. The engine will automatically start upon activation of the remote start contact input. The
remote device (transfer switch) initiates a start sequence when utility power fails.
2. When the remote start signal is activated, the engine will start.
3. The automatic stop sequence will be initiated by removal of the remote start signal.
4. When the start signal is removed, a cool down delay function will be initiated.
5. When the cool down time delay period expires (typically 5 minutes), the controllers
RUN output will be immediately terminated which will initiate the engine to stop.
Manually Stop the Generator−Set at anytime by simply pushing the “Stop” button. The
controllers RUN output will be immediately terminated which will initiate the engine stop
sequence.
Automatic Fault Shutdown AE11 and AE25.
When a fault circuit is programmed as a Shutdown, the engine will immediately stop when the
fault is activated. A specific shutdown fault can be programmed with a definite time transient
delay period that must expire before the shutdown is activated. The stop sequence will cause the
controllers RUN output to be immediately terminated which will cause the engine to stop.
A Warning lamp does not terminate generator set operation. It only warns that a condition
exists. (alternator charge failure, etc.) but allows generator operation to continue.