Coleman PM402511 owner manual Generator Control Panel Features - Alarms

GENERATOR CONTROL PANEL

FEATURES - ALARMS

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.

WARNING

•Hot coolant under pressure in radiator can cause severe burns. Allow radiator to cool completely before removing cap.

•Eye protection should be used.

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.

GENERATOR CONTROL PANEL

FEATURES - PRE-ALARMS

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,

apre-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.

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