Magnum Energy ME-MR Owner's Manual page 38

FAULT !
FetOvrld
• FET Overload Fault – The inverter/charger has shut down because
the internal FETs (Field Effect Transistors) have quickly exceeded a safe
operating temperature. Once the FETs have cooled, perform a manual
restart.
Remedy: If the fault continues to occur, disconnect all the
inverter's AC output wires and reset the inverter (see Section 6.2).
If this fault does not clear after doing a reset, the inverter may
require service.
FAULT !
High Bat
• High Battery Fault – The inverter turned off because the battery
voltage is above the High Battery Cut-Out (HBCO) value. The inverter
automatically restarts and resumes operation when the battery voltage
drops 0.3 VDC (12-volt models), 0.6 VDC (24-volt models), or 1.2 VDC (48-
volt models) below the HBCO value. The HBCO value is dependent on your
inverter revision and model.
Remedy: This fault usually occurs when an external DC source is
charging the inverter's battery bank. Turn off any other additional
charging source to allow the DC voltage level to drop.
© 2020 Sensata Technologies
FetOvrld appears on the LCD and
the FAULT (red) LED is on. The INV
(green) LED is off.
Figu r e 5 - 2 0 , FET Ove r loa d Fa u lt
High Bat appears on the LCD and
the FAULT (red) LED is on. The INV
(green) LED is off.
Figu r e 5 - 2 1 , H igh Ba t t e r y Fa u lt
5.0 Operation
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