©2013 Magnum Energy, Inc.
46
5.0 Operation
AC Backfeed
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
AC Backfeed
Settings/Info..
Figure 5-17, AC Backfeed Fault
• AC Backfeed
– This fault message causes the inverter to shut down
because AC voltage from an external AC source has been detected on the
inverter’s AC output. An inverter reset or power reset will be required to
resume operation (see Sections 6.2 & 6.3).
Remedy:
This fault usually occurs because the AC output wiring is
connected to (or able to be connected to) the incoming AC source.
When this fault happens, all system wiring should be re-checked
to ensure the incoming hot and/or neutral wires are not able to be
connected to the AC output.
AC 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
AC Overload
Settings/Info..
Figure 5-18, AC Overload Fault
• AC Overload
– This fault message displays when the AC load on the
inverter/charger’s output has exceeded the inverter’s AC current protection
limits. If the overload lasts for less than 10 seconds, the unit will automatically
restart and resume operation. However, if the overload occurs for 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 inverter’s output capacity, there is a wiring short
on the output, or the output wires are incorrectly wired. Once the
AC loads are reduced or the output wiring is corrected, the inverter
can be restarted after a manual restart has been accomplished.
5.3.3 Fault Mode Messages
The FAULT LED comes on and a fault status is displayed when an abnormal
condition is detected. View the LCD display and use the information in this
section to determine and correct the issue.
Info:
Many of the faults will automatically restart when the fault
is cleared. Some faults will require a manual restart (ON/OFF IN-
VERTER button on remote is pressed and released). Finally, if the
fault does not clear, an inverter reset (Section 6.2) may be required.
5.3.3.1 System Fault Messages
These faults are usually caused by an external issue that directly affects the
inverter/charger system.