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MDC CONTROLLER INFORMATION DISPLAYS, FUNCTIONS, AND RESET
The Magnum Digital Controller (MDC) constantly monitors vital generator and engine functions for a number of
operation, alarm and fault conditions. When a fault condition occurs, the engine will shut down automatically and the
Liquid Crystal Display (LCD) window will show the fault that has caused the shutdown. To resume operation, the
fault condition must be resolved. To reset the controller and resume operation, press the “FAULT RESET” button.
The operation of the Magnum Digital Controller (MDC) is divided into the following sections:
MAGNUM DIGITAL CONTROLLER (MDC) - GENERATOR OPERATIONAL STATUS
The Magnum Digital Controller (MDC) displays the operational status of the generator using the following codes:
MAGNUM DIGITAL CONTROLLER (MDC) - ALARM MANAGEMENT
The Magnum Digital Controller (MDC) is capable of displaying the following alarms:
No. Engine State Description
1 AfterCool Engine aftercooling, Cooling Pump output is closed.
2 Cooling The unit is cooling before stop.
3 Cranking Engine is cranking.
4 EmergMan Emergency Manual gen-set operation.
5 Init Autotest during controller power on.
6 Not Ready The unit is not ready to start.
7 Pause Pause between start attempts.
8 Prestart Prestart sequence in process, Prestart output is closed.
9 Ready The unit is ready to run.
10 Running The unit is running at nominal speed.
11 Shutdown Shutdown alarm is activated.
12 Starting Starting speed is reached and the idle timer is running.
13 Stop Stop.
No. Electrical State Description
1 StabilTO Stabilization Timeout
No. Type Description
1 Sensor fail (FLS)
Sensor fail is detected when measured value is 6% out of the
selected characteristic. Sensor fail is indicated by ##### symbol
instead of measured value. Note: Oil Temp for John Deere engines
will always display #####.
2 Warning (WRN) When warning comes up, see list of possible alarms.
3 Shutdown (SD)
When the shutdown alarm comes up the digital controller opens
outputs GCB CLOSE/OPEN, FUEL, SOLENOID, STARTER and
PRESTART to stop the engine immediately.
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