Mdc Information Displays, Functions, And Reset; Magnum Digital Controller (Mdc) - Operational Status; Magnum Digital Controller (Mdc) - Alarm Management - Generac Power Systems Magnum MTT25 Operating Manual

MDC 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 FAULT RESET.
The operation of the MDC is divided into the following sections:
MAGNUM DIGITAL CONTROLLER (MDC) – OPERATIONAL STATUS
The Magnum Digital Controller (MDC) displays the operational status of the unit using the following codes:
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
No. Electrical State
1

MAGNUM DIGITAL CONTROLLER (MDC) - ALARM MANAGEMENT

The Magnum Digital Controller (MDC) is capable of displaying the following alarms:
No. Type
1 Sensor fail (FLS)
2 Warning (WRN)
3 Shutdown (SD)
22
Engine State
AfterCool Engine aftercooling, cooling pump output is closed.
Cooling The unit is cooling before stop.
Cranking Engine is cranking.
EmergMan Emergency manual gen-set operation.
Init Autotest during controller power on.
The unit is running at nominal speed and GCB OPEN/
Loaded
CLOSE is closed.
Not Ready The unit is not ready to start.
Pause Pause between start attempts.
Prestart Prestart sequence in process, prestart output is closed.
Ready The unit is ready to run.
Running The unit is running at nominal speed.
Shutdown Shutdown alarm is activated.
Starting Starting speed is reached and the idle timer is running.
Stop Stop.
StabilTO Stabilization timeout.
Sensor fail is detected when measured value is 6% out of the
selected characteristic. Sensor fail is indicated by ##### symbol
instead of measured value.
When warning comes up, refer to list of alarms.
When the shutdown alarm comes up, the digital controller opens
outputs GCB CLOSE/OPEN, FUEL, SOLENOID, STARTER and
PRESTART to stop the engine immediately.
Description
Description
Description