©2009 Magnum Energy Inc.
29
Operation
FET Overload -
This fault message indicates the inverter/charger has
shut down because the internal FET’s (Field Effect Transistor’s) have quickly
exceeded a safe operating temperature. When the FET’s 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.
Breaker Tripped
- The inverter has detected that the AC input breaker
on the inverter/charger has opened due to excess current
fl
ow thru 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.
Info:
While in charger mode, the inverter’s AC input breaker could
nuisance trip if the loads on the inverter’s AC HOT OUT 1 exceed the
current rating of this circuit breaker.
DC Ovrld
- This fault causes the inverter to shutdown to protect internal
power components and may be caused by an excessive AC load. If the
overload condition lasts for less than 10 seconds, the unit will automatically
restart and resume operation. However, if the overcurrent condition occurs more
than 10 seconds, the unit will shut down and will require a manual restart.
Remedy:
This fault usually occurs because the connected AC loads
are larger than the inverter’s output capacity, there is a wiring short
on the AC output or the wires are incorrectly wired. Once the AC loads
are reduced or the output wiring is corrected; manually restart the
inverter to resume operation. If this fault condition continues after all
these recommendation, perform a inverter reset (see section 6.2).
•
•
•
FETOvrld
appears on the LCD and
the FAULT (red) LED is on. The INV
(green) LED’s is off.
E R R OR!
F etOvrld
Figure 5-18, FET Overload Fault
CB3
appears on the LCD and the
FAULT (red) LED is on. The INV
(green) LED’s is off.
E R R OR!
C B 3 Open
Figure 5-19, Breaker Tripped Fault
DC Ovrld
appears on the LCD and
the FAULT (red) LED is on. The
PWR (green), CHG (green) and INV
(green) LED’s are off.
E R R OR!
D C Ovrld
Figure 5-20, DC Overload Fault
