Auto (Remote) Starting The Unit - Generac Power Systems Magnum MMG75D Owner's Manual

Operation
"Manual Mode - Crank Rest" at the top of the
screen. The engine will make two more attempts to
start for a total of three crank cycles.
Should the engine not start and run within three
6.
crank cycles, the LCD window will show the "Fail to
Start" alarm. The starting sequence may be
repeated after the starter has had a minimum of
two minutes to cool. Pressing the Enter (P) button
will clear the alarm and reset the controller.
NOTE: The engine controller may skip the preheat
engine steps on some of the larger models.
Once the engine starts, it will immediately begin
7.
speeding up to a constant 1800 rpm. The engine
may hunt or change speeds until operating speed
is reached. After a few minutes of operation, the
engine will be warmed up and the operator screens
will show engine
parameters.
Check the generator for excessive noise or
8.
vibration and any coolant, oil, or fuel leaks before
applying any loads.
Verify the AC output voltage is correct. See
9.
Voltage Adjustment.
Check that the frequency (Hz) is correct on the
10.
Generator screen. With no loads connected to the
generator, the
approximately 60 Hz, depending on the type of
engine governing used.
If all wiring connections have been made correctly,
11.
switch the main circuit breaker to the ON (I)
position and then add any loads attached to the
receptacles by switching the respective circuit
breaker to the ON (I) position. You will notice a
slight change in engine sound when a load is
applied to the unit.

AUTO (Remote) Starting the Unit

AUTO mode is used when the unit is started from a
location other than the control panel by using a transfer
switch. AUTO (remote start) is the normal setting when
the unit is being used as a standby power supply. Before
putting the unit in AUTO mode, review the
Checklist and Manually Starting the
safety warnings and review all information on isolating
the generator with a transfer switch if the unit is to be
used as a standby power supply. See
Timer, then continue with the steps described below:
Perform a manual start of the unit at least once to
1.
verify that the engine is operating correctly.
If a check of the remote start circuit is desired,
2.
remove the wires from the remote start terminal
block. Press the AUTO/MANUAL Mode () button,
the LCD window should show "Auto Mode" at the
top of the screen. Attach a jumper wire (minimum
16 gauge) across the two terminals on the remote
16
and generator operating
frequency should
Prestart
Unit. Follow all
AUTO Exercise
start terminal block. This applies a ground to the
Power Zone™ Controller to close the starting
circuit contacts. The engine should crank, start and
run.
Remove the jumper wire from the remote start
3.
terminal block and the engine will stop. Reconnect
any necessary wires from the remote start switch
(transfer switch) to the remote start terminal block.
Verify the unit is in AUTO mode. The LCD window
4.
should show "Auto Mode" at the top of the screen.
Close the main circuit breaker (set to ON (I)).
5.
Secure the unit by closing and locking all access
6.
doors.
The unit is now ready for remote starting.
7.
See Figure 3-2. The remote start terminal block provides
a connection for installation of a remote start switch
which will allow the unit to be started by a remote dry-
contact closure switch. For location of the remote start
terminal block, see
Before entering AUTO mode, verify the contacts on any
remote switch linked to the unit are open. If the contacts
on a remote switch are closed, the engine will crank and
Fine
start when AUTO mode is entered. Attach the switch
leads to the two unused terminals (A) on the unit's
remote start terminal block.
read
Figure 3-2. Remote Start Terminal Block
Control Panel.
A
Owner's Manual for Generator