Magnum Energy ME-RTR Router - Manual (Page 72)

©
2014 Magnum Energy, Inc. Page 64
Operation
5.3.4 Fault Mode Messages
The FAULT LED comes on and a fault status is displayed when an abnormal condition is detected.
Use this section to identify and correct the issue.
Info: Many of the faults automatically clear once the fault is resolved. Some will require
a manual restart. This requires the ON/OFF INVERTER button on the router to be pressed
and released. Finally, if the fault will not clear, an inverter reset (see Section 6.2) or
power-down (see Section 6.3) may be required.
5.3.4.1 System Fault Messages
These fault messages are usually caused by an external issue that directly affects the inverter/
charger system.
AC Backfeed appears on the LCD and 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 5-29, AC Backfeed Mode
• AC Backfeed (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. When the
unit shuts down because of this fault condition, an inverter reset or power-down will be required
to resume operation (see Sections 6.2 & 6.3).
Remedy: This fault usually occurs because the inverter’s AC output wiring is connected
to the incoming AC source (either hardwired or through a switch/breaker). When this
fault happens, all system wiring should be re-checked to ensure the incoming hot and/
or neutral wires are not in some way connected to the AC output.
FAULT
PWR
CHG
INV
AC Overload
Settings/Info...
AC Overload appears on the LCD and the FAULT (red)
LED is on. The PWR (green), CHG (green), and INV
(green) LEDs are off.
Figure 5-30, AC Overload Fault
• AC Overload (AC OverL) – 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 condition
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 require a manual restart.
Remedy: This fault 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
installed. Once the AC loads are reduced or the output wiring is corrected, the inverter
can be restarted after a manual restart.