Setting Up A Daily Scheduled Run; Set The Unit To Auto Mode; Shutting Down The Unit; Emergency Stop Switch - Generac Mobile MMG35DF4 Owner's Manual

Day Monday-Sunday
Week (of month) First, Second, Third, Fourth
NOTE: If setting up a daily scheduled run, select Weekly
Run Mode, then set start time and duration for each day
(seven schedule entries total). This will repeat the seven
day schedule as long as the unit is in AUTO mode.

Setting Up a Daily Scheduled Run

1. Enable the scheduler.
2. Set RUN mode to Weekly.
3. Set load to preferred method.
4. Set the start time and duration for seven days
(Monday–Sunday).
5. Set the controller to AUTO mode.

Set the Unit to AUTO Mode

From any operator or maintenance screen, press and
hold the AUTO or MANUAL mode ( ) button for five
seconds, or until AUTO mode is displayed at the top of
the screen.
NOTE: If any of the scheduled time slots are currently
active, the controller will begin the starting sequence and
start the unit, provided there are no shutdown conditions
present.

Shutting Down the Unit

Prior to shutting down the unit, check with personnel
using power supplied by the generator and let them know
the power is going to be turned off. Verify the power shut
down will not create any hazards by accidentally turning
off equipment that needs to be kept on (pumps,
compressors, lights, etc.).
1. Remove all loads from the generator by opening all
circuit breakers (turn OFF (O)).
2. Allow engine to run for approximately five minutes
to allow it to cool down.
3. Press the red engine STOP (O) button on the
controller. This will result in the generator going
into the shutdown cycle and starting a 15 second
shutdown timer. If the unit does not shut down
within 15 seconds, a stop fail alarm will be
displayed on the display screen.
4. After the unit shuts down, wait two minutes after
engine shutdown for controller actuated actions to
complete and then set the control power switch to
OFF (O).
NOTE: Turning off the control panel before the controller
finishes updating could cause a loss of data.
NOTE: For extended storage time, disconnect the
battery. See the engine operator's manual for extended
storage requirements.
Owner's Manual for Mobile Generator

Emergency Stop Switch

CAUTION
Equipment Damage. The emergency stop switch is
not to be used to power down the unit under normal
operating circumstances. Doing so could result in
equipment damage.
See Figure 2-5. The unit is equipped with one
emergency stop switch. The red button is clearly labeled
EMERGENCY STOP. The switch can be accessed and
activated with all doors closed and locked.
Activate the emergency stop switch by pushing the
button in until it locks down. This trips the main circuit
breaker, disconnecting the load to the connection lugs.
This will also open the fuel circuit, shutting down the
engine. The emergency stop fault will be displayed on the
control panel. The switch will remain closed until it is
pulled out.

Idle Switch

The idle speed is 1,000 to 1,200 RPM. The engine will
start at idle speed and run at idle for 15 seconds no
matter what position the idle switch is in. After 15
seconds of running at idle, the unit will ramp up to 1,800
rpm if the idle switch is OFF. Otherwise the unit will
continue to idle if the idle switch is ON.
When the engine is at idle speed (1,000 to 1,200 RPM),
the voltage regulator will not function and the output
voltage is dropped out by the voltage regulator.
IMPORTANT NOTE: Do not apply load to the unit
when the engine is running at idle speed.

Using ECU Override

CAUTION
Equipment Damage. Do not start the engine with the
Engine Control Unit (ECU) override switch ON.
Doing so will damage the ECU.
IMPORTANT NOTE: Starting the engine with the
ECU override switch ON will not allow the engine to
shut down properly using the Engine STOP Button.
This must only be used when the engine is OFF.
To access ECU override, put the controller in STOP
mode and press the green START button. The top of the
screen will read ECU OVERRIDE.
If the unit needs to be shut down immediately, use the
emergency stop switch. See
Operation
(000246b)
(000305)
Emergency Stop Switch.
33