Enovation Controls Murphy EMS PRO LITE, Installation And Operation Manual

Page: 28 / 63

Section 40 00-02-0787
2015-03-23
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•
If the Fuel/ECU Enable output is not already ON, t
he Fuel/ECU
Enable will be turned ON.
NOTES:
WAIT FOR ECU . If ECU is selected in engine type, the
controller will go through a fixed 10-second delay to allow the
ECU to warm up prior to cranking.
A NO SPEED SIGNAL shutdown occurs (when enabled) if the
controller does not read a frequency within 3 seconds after
cranking begins.

The Alt excite output is turned ON.

The crank output is turned ON and cycle cranking begins at
this point for all engine types.
NOTES
CYCLE CRANKING - If the engine does not start on the first
crank, the controller will de-energize the starter output for the
rest cycle.
OVERCRANK - If the engine fails to start after the number of
cranking attempts is exceeded, OVERCRANK will be
indicated on the display. The auto start sequence will be
stopped, requiring manual reset of the controller. The
controller is reset by moving the panel key switch to the "OFF"
position.
•
After the crank cycle has finished, the following will occur:

The STATE text line displays “AT LOAD”.

The “shutdown lockout” delay begins timing. When this delay
expires, the following shutdowns/alarms are armed:
o
ALT FAIL/LOW BAT.
Stop Sequence
•
When the red stop key is pressed, the following will occur:

The SELECTOR: text line will display “MAN” and the
STATE: text line will display “COOLDOWN”.

The engine is throttled to a cooldown RPM set point by the
operator.
NOTE: If you do not manually throttle down the engine, it will
not idle down in COOLDOWN before the engine is shut down.

The “low discharge pressure” shutdown is ignored.