Engine operating panel – Multiquip DCA70SSIU2 User Manual
Page 21

DCA70SSIU2 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #0 (05/29/09) — PAGE 21
The defi nitions below describe the controls and functions 
of the Engine Operating Panel (Figure 5).
Panel Light
1.
— 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.
Panel Light Switch 
2.
— When activated will turn on control
panel light.
Oil Pressure Gauge 
3.
— During normal operation this
gauge should read between 42 ~71 psi. (290~490 kPa). 
When starting the generator the oil pressure may read a 
little higher, but after the engine warms up the oil pressure 
should return to the correct pressure range.
Water Temperature Gauge 
4.
— During normal operation this
gauge be should read between 167°~203°F (75° ~95°C
Charging Ammeter Gauge 
5.
— Indicates the current
being supplied by the engine’s alternator which provides 
current for generator’s control circuits and battery 
charging system.
Fuel Gauge 
6.
— Indicates amount of diesel fuel available.
Tachometer
7.
— 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.
Preheat Lamp 
8.
— As the engine cranks, this lamp will
illuminate to indicate automatic preheating of the engine 
glow plugs. When the lamp turns off, this indicates that 
the preheat cycle is complte and the engine will start 
automatically.
Warning Lamp 
9.
— This lamp will illuminate when a critical
engine fault has occured.
Engine Speed Switch 
10.
— This switch controls the speed
of the engine (low/high).
Auto START/STOP Engine Controller (ECU)
11. —
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 ECU 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.
MPEC Control Switch
A.
— 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 an automatic transfer switch 
(isolation), place the switch in the AUTO position. In this 
position, should an outage occur, the automatic transfer 
switch (ATS) will start the generator automatically 
via the generator’s auto-start contacts connected to 
the ATS’s start contacts. Please refer to your ATS 
installation manual for further instructions for the 
correct installation of the auto-start contacts of the 
generator to the ATS.
Low Oil Pressure
B.
— Indicates the engine pressure
has fallen below 15 psi (103 kPa). The oil pressure 
is detected using variable resistive values from the 
oil pressure sending unit. This is considered a major 
fault.
High Coolant Temperature
C.
— Indicates the engine
temperature has exceeded 230°F (110°C). The engine 
temperature is detected using variable resistive values 
from the temperature sending unit. This is considered 
a major fault.
Overcrank Shutdown
D.
— 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.
Overspeed Shutdown
E.
— Indicates the engine is
running at an unsafe speed. This is considered a 
major fault.
Engine Running
F.
— Indicates that engine is running
at a safe operating speed.
ENGINE OPERATING PANEL
