Magnum MMG 230, Руководство по эксплуатации

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The history of alarms or codes of the unit are saved in the digital controller. The most
recent alarm or code is the first to be listed, with the time/date of the alarm or code at
the bottom of the screen. The controller stores up to 118 codes. When full, the control-
ler will automatically remove the oldest file. These codes will not be lost when the
control power toggle switch is powered off.
FINE VOLTAGE ADJUSTMENT
Upon start-up of the generator, the “Running” screen of the Magnum Digital
Controller (MDC) will display “SENSING” and will countdown from 45 sec-
onds to “0” Zero. This is a safety feature of the controller to protect the
generator from over or under voltage upon start-up.
“SENSING” is a 45 second time delay and count down process before the
MDC records the generator nominal output voltage. This nominal generator
voltage is then compared to the current set point voltage of the voltage
selector switch. If the nominal voltage recorded by the controller is greater
than or lower than the current set point voltage of the voltage selector switch
setting by 10% or more, the controller will shut the generator down automati-
cally. The display will read: Wrn VG1 or 2 or 3 Under/Over and/or Sd Vg1 or
2 or 3 Under/Over. This means the controller warned (“Wrn”) or even shut down (“Sd”) the unit due to an output
voltage irregularity.
The output voltage of the generator may be adjusted after the generator is running by use of the fine voltage
adjustment screw. The adjusting screw is located directly below the control On/Off toggle switch on the control
panel. This screw turns a rheostat that will provide an increase (“+”) or a decrease (“-”) in the generator output
voltage as displayed on the Power Display Screen on the control panel. When making this adjustment, if the
voltage is increased or decreased too fast or too slow, the unit will automatically shut down. This adjustment
needs to be made within the 45 second delay and countdown to “0” Zero period.
To adjust the output voltage, check the output voltage on the Liquid Crystal Display (LCD) window labeled Gen
freq & Hz. Look at the L1N voltage or the L12 voltage on the display. The generator nominal output voltage should
be within 10% of the voltage rating on the voltage selector switch.
To adjust the output voltage loosen the lock nut at the base of the screw and turn the screw in the desired direc-
tion until the required voltage shown on the LCD window matches the stated voltage on the voltage selector
switch.
For Example: With the voltage selector switch set to “208/120V” 3 Phase position, the voltage displayed
on the Gen freq & Hz screen must be within ± 10 % of the 208/120 position (188-228 V
Line to Line / 108-132 V Line to Neutral).
If the voltage is not set within 10% of the applied voltage or the voltage is not reset within
the 45 second delay period, the generator will shut down automatically and the display will
read Wn VG1 or 2 or 3 Under/Over and/or Sd Vg1 or 2 or 3 Under/Over.
Note: Each time the voltage selector switch is changed from one setting to another, an adjustment will need to
be made to the fine voltage using this adjustment screw.
CONTROL
ON
CONTROL
OFF
VOLTAGE
ADJUSTMENT
RHEOSTAT