Multiquip DCA70SSJU2 - Manual (Page 23)

DCA-70SSJU2 (60 Hz) — OPERATION AND PARTS MANUAL — REV. #0 (05/10/06) — PAGE 23
1
The definitions below describe the controls and functions of the
DCA-70SSJU2 (60 Hz) "
Engine Operating Panel " (Figure 7).
1. Panel Light - Normally used in dark places or at night.
When activated, panel will illuminate. When the generator
is not in use, turn the panel light switch to the ‘OFF’
position.
2. Oil Pressure Gauge – Normal operation should be
between 28 ~71 psi (193 ~490 kPa). When starting the
generator the oil pressure may read a bit higher, but
after the engine warms up the oil pressure should return
to normal.
3. Water Temperature Gauge – During normal operation
this gauge be should read between 165
o F to 203 o F.
4. 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.
5. Fuel Gauge – Indicates amount of diesel fuel available.
6. Tachometer – Indicates engine speed in RPM’s for 50
Hz operation. This meter should indicate 1500 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.
7. Panel Light Switch- When activated, will turn on control
panel light.
8. Pre-heat Lamp - This indicates when the engine is
ready for starting during cold weather operating
conditions.
9. Auto On/Off Engine Controller (MPEC) –
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.
Also the engine controller will shut down the engine 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.
A. MPEC Control Switch – This switch controls the
running of the unit. If this switch is set to the
OFF/RESET position, the unit 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 25 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 239
°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.
DCA-70SSJU2 (60 Hz) — ENGINE OPERATING PANEL