DCA-150SSVU— OPERATION AND PARTS MANUAL (STD)— REV. #1 (06/03/03) — PAGE 27
DCA-150SSVU — ENGINE OPERATING PANEL
The definitions below describe the controls and functions of
the DCA-150SSVU "
Engine Operating Panel " (Figure 7).
1.
Panel Light – 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.
2.
Panel Light Switch – When activated will turn on control
panel light.
3.
Oil Pressure Gauge – During normal operation this
gauge be should read between 44 to 73 psi. When
starting the generator the oil pressure mar read a little
bit higher, but after the engine warms up the oil pressure
should return to the green zone.
4.
Water Temperature Gauge – During normal operation
this gauge be should read between 165
o
and 203
o
F.
5.
Charging Ammeter Gauge – Indicates the current
being supplied by the engine’s alternator which provides
current for generator’s control circuits and battery
charging system.
6.
Fuel Gauge - Indicates amount of diesel fuel available.
7.
Tachometer – Indicates engine speed in RPM’s for 60
Hz operation. This meter should indicate 1800 RPM’s
when the rated load is applied. In addition a built in hour
meter will record the number of operational hours that
the generator has been in use.
8.
Engine Speed Switch - This switch controls the speed
of the engine (low or high).
9.
Coolant Level Alarm Lamp – Is lit (ON)
when the coolant level is lower than the
fixed amount and will cause the engine
to stop. If the generator is not placed on
level ground the coolant level switch may
not function correctly.
A.
Off/Manual/Auto Switch – This switch controls the
running of the generator. If this switch is left in the "OFF"
position, the generator will not run. When this switch is
set to the
manual position, the generator will start
immediately.
If the generator is to be connected to a building's AC
power source via a transfer switch (isolation), place
the switch in the
auto position. In this position the
generator will monitor the AC line output from the
building's power source.
B.
Low Oil Pressure – Indicates the engine pressure
has fallen below 29 psi. The oil pressure is detected
using variable resistive values from the oil pressure
sending unit. This is considered a
major fault.
C.
High Coolant Temperature – Indicates the engine
temperature has exceeded 235
°
F. The engine
temperature is detected using variable resistive values
from the temperature sending unit. This is considered
a
major fault.
D.
Overcrank Shutdown – Indicates the unit has
attempted to start a pre- programmed number of times,
and has failed to start. The number of cycles and
duration are programmable. It is pre-set at 3 cycles
with a 10 second duration. This is considered a
major
fault.
E.
Overspeed Shutdown – Indicates the engine is
running at an unsafe speed. This is considered a
major
fault.
F. Engine Running – Indicates that engine is running
at a safe operating speed.
During
cranking cycle , The MPEC will attempt to crankthe
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.
Also the engine controller will shutdown the generator in the
event of low oil pressure, high coolant temperature, low
coolant level, and loss of magnetic pickup. These conditions
can be observed by monitoring the LED status indicators on
the front of the controller module.
10. Auto On/Off Engine Controller
– 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.
Any
major fault will cause the
controller to shutdown the
generator.
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