16
MAGNUM DIGITAL CONTROLLER (MDC)
The MDC is an enhanced digital generator controller used to start, stop and monitor the operation of the generator
and the engine. The controller constantly monitors vital generator and engine functions for a number of pre-
programmed alarm and fault conditions. When a fault condition occurs, the engine will shut down automatically and
the Liquid Crystal Display (LCD) window will display the fault that caused the shutdown; to resume operation, the
fault condition must be resolved. The controller has the ability to provide the display readout in English and Spanish;
other languages are available. A screen print out of the display screen is also available. This controller also records
a history of the unit’s performance which may be viewed at any time and will not be removed or lost when the controller
is powered down.
The MDC panel consists of five sections: the “CONTROL ON/OFF” toggle switch and fine voltage adjustment screw,
the “OPERATION” keypad, the LCD window, the “DIAGNOSTICS” keypad, and the “STATUS” Light Emitting Diodes
(LED’s).
DIGITAL CONTROLLER FEATURES AND FUNCTIONS
1. The “CONTROL ON/OFF” Toggle Switch and Fine Voltage Adjustment Screw
•
“CONTROL ON/OFF” toggle switch:
This toggle switch powers-up and switches off
the control panel and
the controller.
•
Fine Voltage Adjustment Screw:
This screw may be adjusted to set the generator output voltage after the
link board or voltage selector switch has been changed from one phase to another. This adjustment
MUST
be accomplished within 45 seconds of start-up, during the “V Detect,” so that the unit does not experience a
shutdown alarm for “over or under voltage.” Refer to
“Fine Voltage Adjustment ” on page 19
for more
information.
2. The “OPERATION” Keypad
•
“ENGINE START” button:
The Power Display screen must be in the “MAN” mode in the upper left corner
of the LCD window display and the “READY/MANUAL” LED lit in the “STATUS” portion of the controller. Press
the green “ENGINE START” button to start the unit.
•
“ENGINE STOP” button:
Press the red “ENGINE STOP” button to shut down the unit and start the “Stop
Value” timer.
Summary of Contents for MMG75CAN6
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