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| Illustration 1 | g00844346 |
Alarm Indicator | |
The alarm indicator will illuminate. A warning is shown by a steady indicator. A shutdown is shown by a flashing indicator. The indicator is steady when the alarm is silenced.
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| Illustration 2 | g00844347 |
Alarm mode indicator | |
The display changes from the information mode to the alarm mode. The indicator above the mode select key will illuminate.
| The display will show: | ALARM |
| The appropriate text follows: | SHUTDOWN LOW OIL PRESSURE |
If no alarms are present, the display will show the following message. Then, the display will return to the information mode display.
| NO ALARM PRESENT |
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| Illustration 3 | g00844350 |
Information Mode Indicator | |
The display can show multiple alarms. The following alarms have been triggered: high engine temperature, emergency stop and low coolant warning. The alarms automatically scroll in the order that the alarms occurred.
| Alarm |
| Shutdown High Engine Temp |
| Shutdown Emergency Stop |
| Warning Low coolant level |
It is also possible to manually scroll in order to display the different alarms.
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| Illustration 4 | g00844400 |
Up Key | |
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| Illustration 5 | g00844401 |
Down Key | |
| Initial display | ALARM |
| The display will show the following message when the DOWN key is pressed: | SHUTDOWN HIGH ENGINE TEMP |
| The display will show the following message when the DOWN key is pressed again: | SHUTDOWN EMERGENCY STOP |
| The display will show the following message when the DOWN key is pressed again: | WARNING LOW COOLANT LEVEL |
| The display will show the following message when the DOWN key is pressed again: | ALARM |
| The display will show the following message when the UP key is pressed, etc.: | WARNING LOW COOLANT LEVEL |
Viewing Alarms
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| Illustration 6 | g00844350 |
Information Mode Indicator | |
Any alarms can be displayed if the module is operating in the normal information mode.
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| Illustration 7 | g00844347 |
Alarm Mode Indicator | |
If the user is viewing instrumentation, then the alarm mode will not automatically be displayed. The alarm mode must be viewed by the operator.
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| Illustration 8 | g00844409 |
Mode Select Key | |
To view an alarm, operate the mode select key. Select the alarm mode.
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| Illustration 9 | g00843939 |
Stop/Reset Key | |
In order to clear an alarm, the conditions that originally triggered the alarm must be removed. Then, the alarm can be reset. Alarms are reset by pressing the STOP/RESET key.
Warnings
WARNING CHARGE ALT FAILURE - If the control module does not detect voltage from the alternator, the display will show "WARNING CHARGE ALT FAILURE". The alarm indicator will illuminate.
WARNING LOW BATTERY VOLTAGE - If the control module detects that the voltage from the alternator is below the setting for low voltage, the display will show "WARNING LOW BATTERY VOLTAGE". The alarm indicator will illuminate.
WARNING HIGH BATTERY VOLTAGE - If the control module detects that the voltage from the alternator is above the setting for high voltage, the display will show "WARNING HIGH BATTERY VOLTAGE". The alarm indicator will illuminate.
FAIL TO STOP - If the control module determines that the signal from the oil pressure sender indicates that the engine is running but the engine should not be running, the display will show "FAIL TO STOP". The alarm indicator will illuminate. Also, the control module can be configured so the engine will only start if the signal from the oil pressure sender indicates that the pressure is low.
WARNING LOW OIL PRESSURE - If the control module detects that the engine oil pressure has fallen below the setting for low oil pressure (warning), the display will show "WARNING LOW OIL PRESSURE". The alarm indicator will illuminate. This warning is only active after the engine has exceeded the Safety On Timer.
WARNING HIGH COOLANT TEMP - If the control module detects that the engine coolant temperature has exceeded the setting for high coolant temperature (warning), the display will show "WARNING HIGH COOLANT TEMP". The alarm indicator will illuminate. This warning is only active after the engine has exceeded the Safety On Timer.
WARNING OVERSPEED - If the engine speed exceeds the setting for engine overspeed (warning), the display will show "WARNING OVERSPEED". The alarm indicator will illuminate.
WARNING UNDERSPEED - If the engine speed falls below the setting for engine underspeed (warning), the display will show "WARNING UNDERSPEED". The alarm indicator will illuminate. This warning is only active after the engine has exceeded the Safety On Timer.
WARNING GENERATOR HIGH FREQUENCY - If the control module detects an output frequency for the generator that exceeds the setting for high generator frequency (warning), the display will show "WARNING GENERATOR HIGH FREQUENCY". The alarm indicator will illuminate.
WARNING GENERATOR LOW FREQUENCY - If the control module detects an output frequency for the generator that is below the setting for low generator frequency (warning), the display will show "WARNING GENERATOR LOW FREQUENCY". The alarm indicator will illuminate.
GENERATOR HIGH VOLTAGE WARNING - If the control module detects an output voltage for the generator that exceeds the setting for high generator voltage (warning), the display will show "GENERATOR HIGH VOLTAGE WARNING". The alarm indicator will illuminate.
GENERATOR LOW VOLTAGE WARNING - If the control module detects an output voltage for the generator that is less than the setting for low generator voltage (warning), the display will show "GENERATOR LOW VOLTAGE WARNING". The alarm indicator will illuminate.
MAINTENANCE DUE ALARM - Maintenance intervals can be programmed into the control module. When the hour meter arrives at a maintenance setting, the display will show "MAINTENANCE DUE ALARM". The alarm indicator will illuminate.
Shutdowns
Shutdowns are latching and stop the generator. The alarm must be accepted and cleared, and the fault removed to reset the module.
Note: The shutdown condition must be corrected before a reset will take place. If the shutdown condition remains it will not be possible to reset the unit. The exception is the low oil pressure alarm and other alarms of the same type as the low oil pressure alarm. The oil pressure will be low with the engine at rest.
SHUTDOWN FAIL TO START - If the engine does not start after a preset number of attempts, the display will show "SHUTDOWN FAIL TO START". The alarm indicator will flash.
SHUTDOWN EMERGENCY STOP - If the voltage signal at the input for the emergency stop is disconnected, the display will show "SHUTDOWN EMERGENCY STOP". The generator set will not start until the emergency stop push button has been reset. Power is removed from the fuel solenoid and the starter solenoid. The alarm indicator will flash. The positive signal from the emergency stop must be present or the unit will shut down.
SHUTDOWN LOW OIL PRESSURE - If the control module detects that the engine oil pressure has fallen below the setting for low oil pressure (shutdown), the display will show "SHUTDOWN LOW OIL PRESSURE". The alarm indicator will flash. This warning is only active after the engine has exceeded the Safety On Timer.
SHUTDOWN HIGH COOLANT TEMP - If the control module detects that the engine coolant temperature has exceeded the setting for high coolant temperature (shutdown), the display will show "SHUTDOWN HIGH COOLANT TEMP". The alarm indicator will flash. This warning is only active after the engine has exceeded the Safety On Timer.
SHUDOWN OVERSPEED - If the engine speed exceeds the setting for engine overspeed (shutdown), the display will show "SHUTDOWN OVERSPEED". The alarm indicator will flash. During the start-up sequence the overspeed trip can be configured in order to allow an extra trip level margin. This is used to prevent nuisance alarm tripping on start-up. Refer to the "P810 For Windows" software manual under overspeed overshoot for details.
SHUTDOWN UNDERSPEED - If the engine speed falls below the setting for engine underspeed (shutdown), the display will show "SHUTDOWN UNDERSPEED". The alarm indicator will flash. This warning is only active after the engine has exceeded the Safety On Timer.
SHUTDOWN GENERATOR HIGH FREQUENCY - If the control module detects an output frequency for the generator that exceeds the setting for high generator frequency (shutdown), the display will show "SHUTDOWN GENERATOR HIGH FREQUENCY". The alarm indicator will flash.
SHUTDOWN GENERATOR LOW FREQUENCY - If the control module detects an output frequency for the generator that is below the setting for low generator frequency (shutdown), the display will show "SHUTDOWN GENERATOR LOW FREQUENCY". The alarm indicator will flash.
GENERATOR HIGH VOLTAGE SHUTDOWN - If the control module detects an output voltage for the generator that exceeds the setting for high generator voltage (shutdown), the display will show "GENERATOR HIGH VOLTAGE SHUTDOWN". The alarm indicator will flash.
GENERATOR LOW VOLTAGE SHUTDOWN - If the control module detects an output voltage for the generator that is less than the setting for low generator voltage (shutdown), the display will show "GENERATOR LOW VOLTAGE SHUTDOWN". The alarm indicator will flash.
OIL PRESSURE SENDER OPEN CIRCUIT - If the control module detects an open circuit in the wiring for the oil pressure sender, the display will show "OIL PRESSURE SENDER OPEN CIRCUIT". The alarm indicator will flash. This shutdown is immediate.
GENERATOR EARTH FAULT (Enhanced instrumentation version only) - If the control module detects current that exceeds a limit that has been programmed and the control module determines that a short to ground exists, the display will show "GENERATOR EARTH FAULT". The alarm indicator will flash.
GENERATOR PHASE SEQUENCE WRONG (Enhanced instrumentation version only) - If the control module detects an problem with the phase rotation of the generator, the display will show "GENERATOR PHASE SEQUENCE WRONG " The alarm indicator will flash.
AUXILIARY INPUTS - If an auxiliary input has been configured in order to shutdown the engine, the display will show the message that has been programmed. The alarm indicator will flash.
Shutdowns with Generator Unload
Shutdowns with the generator unload are latching and the engine is stopped in a controlled manner. On initiation of a shutdown condition the module will de-energize the load transfer output in order to remove the load from the generator. Once this has occurred the module will start the cooling timer and allow the engine to cool off-load, before shutting down the engine. The alarm must be accepted and cleared, and the fault removed to reset the module.
GENERATOR REVERSE POWER(Enhanced Instrumentation Versions Only) - If the module detects a generator reverse power condition in excess of the predetermined trip, a shutdown is initiated. The display will indicate "GENERATOR REVERSE POWER" and the alarm indicator will flash.
GENERATOR OVER CURRENT - If the module detects a generator output current in excess of the predetermined trip a shutdown is initiated. The display will indicate "GEN OVER CURRENT" and the alarm indicator will flash.
GENERATOR SHORT CIRCUIT - If the module detects a generator fault current in excess of the predetermined trip a shutdown is initiated. The display will indicate "GEN SHORT CIRCUIT" and the alarm indicator will flash.
AUXILIARY INPUTS - If an auxiliary input has been configured as a shutdown with generator unload, the appropriate display message will be displayed and the alarm indicator will illuminate.
Prealarms and Options
During module configuration it is possible to select prealarm levels for all of the above shutdowns and electrical trips to give a warning that the trip value is being approached. This requires the operator to take steps to prevent the shutdown from ultimately occurring by rectifying the triggering condition.
If the module is fitted with the optional RS232 communication board, then the following alarm is available:
MODEM POWER FAULT - If the module detects a modem supply current in excess of 350 mA, a warning is initiated. The display will indicate "MODEM POWER FAULT" and the alarm indicator will illuminate. The power supply to the modem will be removed until the alarm is reset.