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PAGE 18 — DCA300SSC GENERATOR • OPERATION AND PARTS MANUAL — REV. #0 (06/25/09)
GENERATOR CONTROL PANEL
Generator Control PanelFigure 4.
The defi nitions below describe the controls and functions
of the DCA300SSC Generator Control Panel (Figure 4).
Pilot Lamp 1. — Indicates the system is running.
Panel Light 2. — Normally used in dark areas or at night
time. When activated, panel lights will illuminate. When
the generator is not in use be sure to turn the panel
light switch to the OFF position.
AC Voltmeter 3. — Indicates the output voltage present
at the U,V, and W Output Terminal Lugs.
Auto On/Off Engine Controller (MPEC) —4.
This controller has a vertical row of status LED’s (inset),
that when lit, indicate that an engine malfunction (fault)
has been detected. When a fault
has been detected the engine
controller will evaluate the fault
and all major faults will shutdown
the generator. During cranking
cycle, The MPEC will attempt to
crank the engine for 10 seconds
before disengaging.
If the engine does not engage (start) by the third
attempt, the engine will be shutdown by the engine
controller’s Over Crank Protection mode. If the
engine engages at a speed (RPM’s) that is not safe,
the controller will shutdown the engine by initializing
the Over Speed Protection mode.
Main Circuit Breaker 5. — This three-pole, 800 amp
main breaker is provided to protect the U,V, and W
Output Terminal Lugs from overload.
Voltmeter Change-Over Switch 6. — This switch allows
the AC voltmeter to indicate phase to phase voltage
between any two phases of the output terminals or to
be switched off.
Voltage Regulator Control 7. — Allows ±15% manual
adjustment of the generator’s output voltage.
Panel Light Switch 8. — When activated will turn on
control panel light.
Ammeter Change-Over Switch 9. — This switch allows
the AC ammeter to indicate the current fl owing to the load
connected to any phase of the output terminals, or to be
switched off. This switch does not effect the generator
output in any fashion, it is for current reading only.
AC Ammeter 10. — Indicates the amount of current the
load is drawing from the generator per leg selected by
the ammeter phase-selector switch.
Frequency Meter 11. — Indicates the output frequency
in hertz (Hz). Normally 60 Hz