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©2013 Magnum Energy, Inc.
5.0 Operation
Breaker Tripped
appears on the
LCD. The FAULT (red) LED is on. The
PWR (green), CHG (green), and INV
(green) LEDs are off.
FAULT
PWR
CHG
INV
Breaker Tripped
Settings/Info..
Figure 5-19, Breaker Tripped Fault
• Breaker Tripped
– The AC input breaker on the inverter/charger has
opened due to excess current
fl
ow through the inverter to the AC loads.
Remedy:
After reducing the AC loads, push in the inverter’s AC input
circuit breaker to reset and resume operation. Ensure the current to
the inverter loads do not exceed the input breaker rating.
Dead Batt Charge
appears on the
LCD. The FAULT (red) LED is on. The
PWR (green), CHG (green), and INV
(green) LEDs are off.
FAULT
PWR
CHG
INV
Dead Batt Charge
Settings/Info..
Figure 5-20, Dead Battery Charge Fault
• Dead Battery Charge
– This fault has detected a very discharged
battery bank, or a battery bank not connected to the inverter. The unit is
attempting to enter the Charge mode, but has detected less than 9 volts
(12-volt models), 18 volts (for 24-volt models), or 36 volts (for 48-volt
models) on the battery bank.
Remedy:
Check the DC voltage on the inverter’s DC terminals
and ensure it is the same as the battery bank—these two voltages
should be very close (<0.5 VDC difference). If not, check to ensure
all connections are tight and the fuse/circuit breaker between the
inverter and battery bank is good.
This fault automatically clears if the AC input power is removed or
when the voltage is greater than 12.6 volts (12-volt models), 25.2
volts (for 24-volt models), or 50.4 volts (for 48-volt models) as
detected by the inverter.
FET Overload
appears on the LCD.
The FAULT (red) LED is on. The
PWR (green), CHG (green), and INV
(green) LEDs are off.
FAULT
PWR
CHG
INV
FET Overload
Settings/Info..
Figure 5-21, FET Overload Fault
• FET Overload
–
This fault message indicates the inverter/charger has
shut down because the internal FETs (Field Effect Transistors) have quickly
exceeded a safe operating temperature. When the FETs have cooled, the unit
will require a manual restart to resume operation.
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.
