Internal Fault Messages - Magnum Energy ME-ARC Series Owner's Manual

5.0 Operation
• Stack Mode – A problem with the "other" stacked inverter has been
detected. Check that unit for a fault condition.
Remedy: This fault will automatically clear when the fault with the
other inverter is corrected.
• StackPhase – Either: 1. The AC input wiring is incorrect; 2. One phase
was lost from the AC input source; 3. One of the inverter's internal transfer
relays is bad; or, 4. The inverter's AC input circuit breaker may be open.
Remedy: If this fault doesn't clear after checking these four recom-
mendations, perform an inverter reset (see Section 6.2).

5.3.4.3 Internal Fault Messages

The inverter continually monitors several internal components. If a condition
inside the inverter occurs that does not allow proper operation, one of the
following internal fault messages displays and the inverter shuts down to
help protect itself.
Remedy: If one of the following internal faults occurs, the inverter
will require an inverter or power reset to clear the fault. See Section
6 to perform an inverter or power reset. After resetting the inverter,
press the ON/OFF INVERTER pushbutton on the remote to turn the
inverter on and verify the fault has cleared (i.e. manual restart). If
the internal fault remains or returns, the inverter will require repair
at an Magnum Energy Authorized Service Center, for locations see
http://www.magnumenergy.com/Service/ServiceCenters-US.htm.
• Internal Bridge – This fault message displays when the FET bridge shuts
down after the inverter has been inverting—the inverter output circuit can no
longer detect any AC output voltage or current.
• Internal Charger – This fault message displays when the FET bridge
shuts down because the charger circuit is trying to provide maximum current,
but is not detecting any current or voltage rise to the battery bank.
• Internal NTC – This fault message displays when the internal NTC
(Negative Temperature Coeffi cient) temperature sensor suddenly causes a
very large but unexpected temperature change.
• Internal Relay – This fault message displays when the internal AC
transfer relay is not closed while charging.
60 © 2012 Magnum Energy, Inc.