TP-5631 7/96 Operation 2-11
Starting/Stopping Procedure (relay controller)
Starting
Place the controller or remote Start/Stop switch in the
RUNpositionuntiltheenginestarts. If theenginefailsto
start after three 8 second attempts, the generator set
stops cranking because of overcrank fault shutdown.
Wait for the engine to come to a complete stop before
attempting restart. Place switch in RESET/OFF
position and then to RUN position.
NOTE
Do not crank engine continuously for more than 30
seconds at a time. Allow a 60-second cooldownperiod
between cranking attempts if the engine does not start.
If the generator set does not start after three attempts,
see Section 4. Troubleshooting for possible causes.
Stopping
1. Disconnect load from generator set and allow
generator set to run without load for 5 minutes.
NOTE
Runthegeneratorsetat noloadfor5minutesprior
to stopping to ensure adequate cooling of the set.
2. Place controller or remote start/stop switch in the
OFF/RESET position. The generator set shuts
down.
Fault Shutdowns (relay controller)
The generator set shuts down automatically under the
following fault conditions and cannot be restarted until
the fault condition is corrected. The shutdownswitches
automaticallyresetwhentheproblemiscorrectedorthe
generator set cools (if overheating was the fault).
Overcrank. Shutdown occurs after 30-60 seconds of
continuous cranking.
Overspeed. Generator set shuts down immediately if
governed frequency exceeds 70 Hz (2100 rpm) on 50
and 60 Hz models.
Low Oil Pressure. Shutdown occurs approximately
8 seconds after fault. Fault occurs when engine oil
pressure drops below specified limit.
NOTE
Lowoilpressureshutdowndoesnot protect againstlow
oil level. Check for oil level at engine.
NOTE
If the cause of a low oil pressure shutdown is not
corrected, the generator set can be restarted (after
controller reset) and will run approximately 8 seconds
before shutting down again. See Resetting Fault
Shutdown procedure following.
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