The main control panel may contain all of the
components which are shown in Illustration 48 or the
main control panel may not contain all of the
components which are shown in Illustration 48 .
Some components are optional. The optional
components may not be required for your particular
application.
Generator Set Control (1) – The generator set
control (GSC) is the main component of the EMCP II.
See the topic “Generator Set Control (GSC)” in this
section.
Alarm Module (2) – The alarm module (ALM) is
optional. The ALM provides a visual warning and an
audible warning of the engine conditions before the
engine conditions become severe enough to shut
down the engine or before the engine conditions
restrain the engine from starting.
Custom Alarm Module (3) – The custom alarm
module (CAM) is optional. The CAM annunciates
faults, alarms or other conditions from customer
supplied inputs.
Panel Light Switch (4) – The panel lights switch
(PLS) turns on the panel lights (7) or turns off the
panel lights (7).
Pump Stop Switch (5) – The pump stop switch is
optional on 3406E and 3412C generator sets only.
This push button switch is used with the generator
mounted automatic fuel transfer system, if equipped.
The pump stop switch is used to manually stop the
fuel transfer pump. The pump stop switch will be in
the depressed position, when the switch is pushed.
The red indicator will now be ON. The switch can be
reset by pressing the switch again. The red indicator
will now be OFF.
Start Aid Switch (6) – The start aid switch (SAS) is
optional. The SAS is used to inject ether into the
engine when you are starting the engine in cold
weather conditions. When the SAS is in ON position,
the switch energizes the starting aid solenoid valve
(SASV) and the switch meters a specific amount of
ether in a holding chamber. When the SAS is
released, the solenoid releases the ether to the
engine.
NOTICE
The engine must be cranking before using the start
aid switch. Damage to the engine is possible if ether
is released to the engine but not exhausted or burned
by the engine when cranking.
Panel Lights (7) – The panel lights (PL) are
controlled by panel lights switch (4). The panel lights
switch (4) is an ON/OFF switch.
Pump Run Switch (8) – The pump run switch is
optional. This momentary push button switch is used
with the generator set mounted automatic fuel
transfer system, if equipped. Pushing the pump run
switch will cause the fuel transfer pump that is
mounted on the generator set to fill the generator set
dry tank. The green indicator will be ON when the
pump is running. The pump will automatically shut
OFF when the fuel reaches the high fuel level. The
pump can be turned off manually by using the pump
stop switch (5). The pump stop switch must be reset.
Reset the pump stop switch by pressing the switch
again.
Voltage Adjust Rheostat (9) – The voltage adjust
rheostat (VAR) is used to adjust the generator output
voltage to the desired level.
Speed Potentiometer (10) – The speed
potentiometer (SP) is optional. The SP can be used
with the generator set that has an electric governor.
When the governor is equipped with a speed adjust
motor, the governor switch (GS) can be mounted
instead of the SP. The engine speed and frequency
can be raised or the engine speed and frequency can
be lowered by using the GS. The GS is also an
option.
Emergency Stop Push Button (11) – The
emergency stop push button (ESPB) is used to shut
down the engine during an emergency situation. The
ESPB shuts off the fuel and the ESPB activates the
optional air shutoff, if equipped.
Engine Control Switch (12) – The engine control
switch (ECS) determines the status of the control
panel. In the AUTOMATIC position (3 o'clock), the
engine starts automatically whenever a remote
contact is closed. The engine will shut down after the
contact opens and after a programmable cooldown
period has elapsed. The cooldown period can be
programmed to give a 0 to 30 minute cooldown
period before the engine shuts down.
In the MANUAL START position (6 o'clock), the
engine starts and the engine runs as long as the
engine control switch (ECS) remains in this position.
In the STOP position (9 o'clock), the fuel solenoid
shuts down the engine after a programmable
cooldown period has elapsed.
In the OFF/RESET position (12 o'clock), the fault
lights are reset and the engine shuts down
immediately.
Caterpillar Monitoring System (35) – This system
is the information center for the engine and related
components. See the Operation Section, “Caterpillar
Monitoring System”.
Below, you can find the descriptions of the following
main modules of the EMCP II:
• Generator Set Control (GSC)
• Alarm Module (ALM)
• Custom Alarm Module (CAM)
SEBU7125-13
37
Operation Section
If Equipped
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