frequency (hertz) =
CONTROL PANEL (TYPE 2)
SYSTEMS OPERATION
NOTICE
Turn engine control switch (ACS) to
the
STOP
or
OFF
position
immediately after engine shutdown
caused by high water temperature,
low oil pressure or overspeed. This
will cause an open in the circuit to
the arming relay (AR). Normally open
contact of arming relay (AR2) will
open
and
current
fow
to
rack
solenoid (RS) will stop. This will help
prevent damage to the rack solenoid
from too much current.
FM Frequency Meter
Frequency meter (FM) shows the hertz (cycles per
second) of the electricity made when the generator set is
in operation. There is a direct relation between the
frequency of the electricity and the rpm of the generator
set; see formula.
number of poles x rpm
120
GS Governor Switch
Governor switch (GS) is in place of button (3) when
the
engine
is
equipped
with
a
remote
control
synchronizing motor for the governor. Engine speed is
controlled with this switch.
HS Heat Switch
Heat switch (HS) is in place of button (2) when the
engine is equipped with glow plugs. This switch is used
to operate the glow plugs for cold weather starting.
OPG Oil Pressure Gauge
Oil pressure gauge (OPG) shows the pressure, in
psi, of engine lubrication oil. When pressure switch
(PSW) or normally open contact of the arming relay
(AR2) is closed, oil pressure gauge (OPG) is connected
across battery voltage. There is a relation between the
current flow in this circuit and the engine oil pressure
read on oil pressure gauge (OPG). Oil pressure sender
(OP) controls the current flow by a change in resistance
according to the change in engine oil pressure.
PAM Prealarm Module
Make reference to ATTACHMENTS.
PL1,2 Panel Lamps
Light for the control panel is given by panel lamps
(PL1 and PL2). These lamps are controlled by panel
light switch (PLS).
VLR Voltage Level Rheostat
Voltage level rheostat (VLR) takes the place of
voltage level rheostat (R2) on the generator regulator
assembly. It is used to adjust the voltage output of the
generator.
NOTE:
Make
reference
to
OPERATION
OF
GENERATOR;
REGULATOR
ADJUSTMENT.
On
generators equipped with a generator
mounted control panel, the yellow
wire from voltage level rheostat (R2)
to terminal (7) on the regulator
terminal strip is disconnected at
terminal (7).
WTG Water Temperature Gauge
Water
temperature
gauge
(WTG)
shows
the
temperature, in degrees fahrenheit, of engine coolant.
When pressure switch (PSW) or normally open contact
of the arming relay (AR2) is closed, water temperature
gauge (WTG) is connected across battery voltage.
There is a relation between the current flow in this circuit
and the coolant temperature read on water temperature
gauge (WTG). Water temperature sender (WT) controls
the current flow by a change in resistance according to
the change in coolant temperature.
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