Generac Power Systems G0071411, Owner'S Manual, Page: 19 / 42

Operation
Owner’s Manual for 60 Hz Air-Cooled Generators 15
Auxiliary Shutdown Switch
All generators are equipped with an external means of
shutting down the generator which complies with the latest
NEC code requirement. The primary generator shutdown
sequence is described in
Shutting Generator Down
While Under Load Or During A Utility Outage .
See Figure 3-5 . There is an auxiliary shutdown switch on
the exterior of the generator back panel. This switch
shuts down the generator and disables restarts.
Figure 3-5. External Auxiliary Shutdown Switch
NOTE: Whenever possible, perform the primary
shutdown procedure before disabling the generator with
the auxiliary shutdown switch.
See Figure 3-6 . There is an additional auxiliary
shutdown switch located inside the generator.
Figure 3-6. Internal Auxiliary Shutdown Switch
The generator will not start if either switch is OPEN (O).
The controller displays an “Auxiliary Shutdown” alarm,
and the red LED “Alarm” light illuminates until the switch
or switches are CLOSED (I), and the alarm is cleared by
pressing the OFF mode button, and then ENTER. The
generator can be placed back in AUTO or MANUAL once
cleared.
Control Panel Interface
See Figure 3-7 . The control panel interface (A) is located
under the lid of the enclosure. Verify both the left and
right side locks are unlocked before attempting to lift
enclosure lid. Open lid as directed in
Opening the Lid .
Figure 3-7. Generator Control Panel
The 7.5A fuse is located beneath the rubber cover (B) to
the right of the control panel.
Verify both the left and right side locks are securely out of
the way before closing the unit.
All appropriate panels must be in place during any
operation of the generator. This includes operation by a
servicing technician while conducting troubleshooting
procedures.
Using the AUTO/OFF/MANUAL
Interface
NOTE: Damage caused by mis-wiring of the
interconnect wires is not warrantable.
CAUTION
(000399)
Equipment Damage. The auxiliary shutdown switch is
not to be used to power down the unit under normal
operating circumstances. Doing so will result in
equipment damage.
005491
005492
Button Description of Operation
AUTO
Activates fully automatic system operation. It
allows the unit to automatically start and
exercise the generator according to the
exercise timer (see
Setting the Exercise
Timer
).
The green LED flashes when the automatic
transfer switch converts to generator power
during a utility power outage.
OFF
Shuts down the engine and prevents automatic
operation of the unit.
MANUAL
Cranks and starts the generator. Transfer to
standby power will not occur unless there is a
utility failure.
The blue LED flashes when the automatic
transfer switch converts to generator power
during a utility power outage.
001798
A
B