Coleman PM402511 - Manual (Page 16)

When the generator control panel senses an
abnormal operating condition, an alarm is declared and
the generator set is shutdown. All alarm conditions will
light a red LED (labeled Alarm) along with displaying the
condition on the LCD screen. When an alarm condition
occurs, the display indicates the cause of the alarm and
the fuel solenoid contact opens which shuts down the
engine. Resetting alarms can only be done locally by
setting the Auto/Off/Run switch to the OFF position.
OVERCRANK ALARM
During unit start-up the controller performs a cyclic
cranking procedure. At that time, the common alarm
contacts close and the LCD displays the message
OVERCRANK and the current overcrank setting.
OVERSPEED ALARM
If the generator speed exceeds a pre-programmed
speed, an overspeed alarm is displayed. At that time, the
common alarm contact closes and the LCD displays the
message OVERSPEED and the current overspeed
setting.
HIGH COOLANT TEMPERATURE ALARM
If the engine coolant temperature exceeds a factory
set level an alarm occurs. At that time, the common
alarm contact closes and the LCD displays the message
HIGH COOLANT TEMP and the current high coolant
temperature setting.
LOW OIL PRESSURE ALARM
If the oil pressure decreases below the low oil
pressure alarm setting programmed, an alarm occurs. At
that time, the common alarm contact closes and the LCD
displays the message LOW OIL PRESSURE and the
current low oil pressure alarm setting.
ENGINE SENDER FAULT ALARM
If an engine sender (transducer) fails, an alarm is
displayed. At that time, the common alarm contact closes
and the LCD displays the message SENDER FAILURE
and the failed sender type.
LOW COOLANT LEVEL ALARM
This alarm will shut down the engine when a loss of
coolant is detected via an optional low coolant level
sensor. At that time, the common alarm contact closed
and the LCD displays the message LOW COOLANT
LEVEL.
All pre-alarm conditions illuminate the red alarm LED
with a 50% duty cycle at a frequency of 0.5 hertz and
sounding the optional audible alarm at the same rate.
The LCD displays all pre-alarms in the following manner:
Low Oil Pressure, High Coolant Temperature, and
Battery Voltage pre-alarms are shown on the main
display with their current values alternately flashing. All
other pre-alarms are individually displayed in sequence,
using the alternate main display mode, whereby each
pre-alarm value is alternately flashed. All pre-alarmed
parameters are displayed in this manner before non-pre-
alarmed parameters. All pre-alarms are reset by
correcting the cause of the pre-alarm. Audible pre-alarms
can be reset by the Alarm Silence pushbutton.
HIGH COOLANT TEMPERATURE PRE-ALARM
If engine coolant temperature increases above the
high coolant temperature pre-alarm setpoint, a pre-alarm
occurs.
LOW COOLANT TEMPERATURE PRE-ALARM
If engine coolant temperature decreases below the
low coolant temperature pre-alarm setpoint, a pre-alarm
occurs.
WEAK BATTERY PRE-ALARM
If the battery voltage drops below 60% of the nominal
voltage for more than 2 seconds during engine cranking,
a pre-alarm occurs. The message Weak Battery is
displayed in the alternate display mode and is reset by
scrolling through the alternate display.
LOW BATTERY VOLTAGE PRE-ALARM
If the battery voltage decreases below the low
battery voltage value programmed, a pre-alarm occurs.
BATTERY OVER VOLTAGE PRE-ALARM
If the battery voltage exceeds the battery over
voltage value programmed, a pre-alarm occurs.
ENGINE OVERLOAD PRE-ALARM
If the engine load exceeds the engine overload level
pre-alarm value programmed, a pre-alarm occurs.
MAINTENANCE PRE-ALARM
When the next scheduled maintenance timer
reaches zero hours, a pre-alarm occurs. After the
required maintenance is performed, the pre-alarm can be
cleared from the front panel. To clear the pre-alarm from
the front panel, go to the alternate display mode and
scroll to the screen that displays HRS TO NEXT
SERVICE. Pressing the Select/Enter button while on this
screen will clear the maintenance pre-alarm and reset
the maintenance timer back to its programmed starting
value.
G G E E N N E E R R A A T T O O R R C C O O N N T T R R O O L L P P A A N N E E L L
F F E E A A T T U U R R E E S S - - A A L L A A R R M M S S
G G E E N N E E R R A A T T O O R R C C O O N N T T R R O O L L P P A A N N E E L L
F F E E A A T T U U R R E E S S - - P P R R E E - - A A L L A A R R M M S S
W WA AR RN NIIN NG G
• Hot coolant under pressure in radiator can
cause severe burns. Allow radiator to cool
completely before removing cap.
• Eye protection should be used.
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