CONTROL PANEL (TYPE 2)
SYSTEMS OPERATION
Shutdown Caused by Engine Failure
The packaged generator set has shutdown sensors,
shutdown indicators and a shutdown circuit for the
conditions that follow:
1. Low oil pressure
2. High water temperature
3. Overspeed
4. Overcrank
For information about overcrank shutdown, make
reference to ENGINE DOES NOT START.
Conditions (1, 2 or 3) will energize its respective
indicator, engine failure light/reset switch (ENFL/RE) and
shutdown relay (SR).
(SR1) contacts close to lock in the shutdown relay.
(SR2) contacts open. This de-energizes run relay (RR).
(RR2) closes and (RR1) opens. (RR2) closed energizes
rack solenoid (RS). The rack solenoid moves the rack to
the fuel OFF position. Pressure switch (PSW) will open
when the engine stops. This de-energizes water
temperature gauge (WTG), oil pressure gauge (OPG)
and rack solenoid (RS). The correct indicator will pop
out (move out suddenly) to show the cause of the
shutdown. To start the engine, do the steps that follow:
1.
Turn engine control switch (ACS) to OFF or STOP.
This will prevent the engine from starting if it is not
desired.
NOTICE
Do
Step
1
immediately
after
shutdown. Step 1 will help prevent
damage to rack solenoid (RS) from
too much current. When engine
control switch (ACS) is turned to
STOP or OFF, (AR2) contacts will
open and stop current flow to the
rack solenoid.
2.
Identify and correct the problem that caused the
shutdown.
3.
Push engine failure light/reset switch (ENFL/RE).
This will open (ENFL/RE) contacts and de-energize
shutdown relay (SR).
4.
Push the indicator button that is out.
5.
Reset oil pressure or overspeed switch if necessary.
The system is ready to start if engine control switch
(ACS) is turned to MAN or AUTO.
CONTROL PANEL WITH ELECTRONIC SPEED SWITCH
AUTOMATIC POSITION-HIGH WATER TEMPERATURE SHUTDOWN
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