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©2009 Magnum Energy Inc.
Operation
High Volts AC
- This fault causes the charger to be disabled because a
very high AC voltage (>125 VAC) has been detected on the AC input.
Remedy:
Remove all AC power from the inverter’s AC input for
at least 15 minutes to automatically restart this fault; ensure only
120VAC power is connected to each of the inverter’s AC inputs. Check
and correct the high voltage problem from the source.
Dead Battery Charge
– This fault has detected a very discharged
battery bank or a battery bank that is disconnected from the inverter. The
unit is attempting to enter the charge mode, but has detected less than 7
volts (12-volt models), 14 volts (for 24-volt models) or 28 volts (for 48-volt
models) on the battery bank. This fault will continue until current is able to
fl
ow into the battery from the battery charger. Once this happens, the fault
will automatically restart.
Remedy:
Check the DC voltage on the inverter’s DC terminals and
compare it with the DC voltage on the battery bank, these two volt-
ages 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.
BackFeed -
This fault message causes the inverter to shutdown because
AC voltage from an external AC source has been detected on the inverters
AC output. When the unit shuts down because of this fault condition, an
inverter reset will be required to resume operation (see section 6.2 to reset
the inverter).
•
•
•
High ACV
appears on the LCD and
the FAULT (red) LED is on. The INV
(green) LED’s is off.
E R R OR!
H igh A C V
Figure 5-15, High Volts AC Fault
Dead Bat
appears on the LCD and the
FAULT (red) LED is on. The INV (green)
LED’s is off.
E R R OR!
D ead B A T
Figure 5-16, Dead Battery Charge Fault
Backfeed
appears in the LCD and
the FAULT (red) LED is on and the
INV (green) LED is off
E R R OR!
B ackFeed
Figure 5-17, BackFeed Fault
