7.3.2 Engine Start/Stop Cranking Control. Engine star/stop control logic
start cycle is initiated by a signal to the cranking motor which starts the
engine. The stop sequence can be initiated manually by a stop button,
automatically by engine shutdown devices, or by protective relays. In the
automatic mode, when the cranking cycle is initiated, it will operate for a
preset period usually of one-minute duration with alternate crank and rest
periods of about 10 seconds. If the engine does not start during this
cycle, the cranking circuitry is shut down. Emergency stops may be
activated,shut down the engine and disconnect the generator from the load.
7.3.3 Operation Mode Switch. A selector switch is located on the engine
gage board to select automatic or manual starting and stopping modes when
both types of operation are required.
generator operation and is mounted on the engine gage board and at the
generator control panel. In small plants all instrumentation may be
located at the diesel generator. The number of instruments may vary
depending on the size and complexity of the plant. The use of solid-state