User manual
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action from the user. The purpose of the first two steps, are both to make sure the load only
receives a clean AC signal, and to allow the generator to gradually slow down before being
stopped. This is particularly important for air-cooled generators.
Gen control menu
Menu item Description Range Step
size
Default value
Gen control Use this option to perform the
displayed action.
“start”,
“stop”
N/A Depends on
the current
generator
status
Delayed
stop
This option determines how long to
wait, after the stop command is
issued, before the generator is actually
stopped. This can be useful, to allow
the generator to run unattended for a
period of time. For example to charge
batteries, or allow laundry to finish.
0 – 500
minutes
10
minutes
0 minutes
Load shed This option allows the normal
behaviour of the load shedding relay to
be overridden. This can be useful if it
is necessary to bring the generator
online before the warm-up period is
complete, or to bring the generator
offline without stopping it.
“yes”,
“no”
N/A Depends on
the current
generator
status
3.3 Generator monitoring
In addition to start and stop control of the generator, the VGM also monitors the generator to
make sure that it is operating correctly. The VGM can be configured to generate an alarm if the
generator is not operating within desired parameters see chapter (4.1 - Generator alarms).
Gen monitoring menu
Menu item Description Units
Session run
time
The amount of time that has elapsed since the generator
was last started.
Hours and
minutes
Coolant temp
The temperature of the generator coolant. Note: this
facility is not supported by all generators.
Degrees Celsius
Oil pressure
The oil pressure of the generator. Note: this facility is
not supported by all generators.
Pounds per
square inch
AC voltage The A.C. output voltage of the generator. Volts
AC amperage The generator load current. Amperes
AC frequency The frequency of the generator output. Hertz
AC kilowatts The current power output of the generator. This is
calculated from the voltage and current readings.
Kilowatts
Battery voltage The voltage of the starter battery. Volts
Engine speed The generator engine speed. By default, this value is
calculated from the measured A.C. frequency. However,
if a magnetic pickup is installed and calibrated, then the
pickup will be used for the calculation instead (see
chapter 4.2.1 - Magnetic pickup calibration).
Revolutions per
minute
Average load The average load on the generator since it was last
switched on.
Percent
Current load The current load on the generator. Percent