Magnum Energy ME-MR Owner's Manual page 42

FAULT !
StkRelay
• Stuck Relay Fault – This fault message displays when the internal AC
pass-thru relay—that should be open while inverting—is closed.
Remedy: The AC pass-thru relay is most likely stuck because of
damage to the contacts from trying to handle currents greater than
their rating. This is usually caused by not protecting the relay from
handling high continuous currents, or by switching high current
inductive loads. The internal relay contacts are rated to handle 30
amps AC continuously and should be protected with a breaker sized
no larger than 30 amps. If you are connected to an AC source (grid
or generator) and running large inductive loads (i.e., pumps, motors,
etc.,) on the inverter output, turn those particular loads off prior
to removing the AC input source. This fault requires an inverter or
power reset (Sections 6.2 & 6.3) to clear.
FAULT !
TfmrTemp
• Transformer Overtemp Fault – This fault message is displayed when
the TCO (Temperature Cut-Out) opens and causes the inverter to shut down
to protect the internal power transformer from damage. When the TCO has
cooled down, the inverter will automatically restart and resume operation.
Remedy: If this fault occurs while inverting, reduce the load on the
inverter. If it occurs while charging, turn down the charge rate. If it
occurs often, ensure the inverter is in a cool location, has adequate
ventilation, and the internal cooling fans are operational.
FAULT !
Fault XX
• Unknown Fault – When a number appears in the second line of the
remote it means the remote doesn't know what fault the inverter is reporting.
Contact Magnum Technical Support for assistance with this fault.
© 2020 Sensata Technologies
StkRelay appears on the LCD and
the FAULT (red) LED is on. The INV
(green) LED is off.
Figu r e 5 - 2 8 , St u ck Re la y Fa u lt
TfmrTemp appears on the LCD and
the FAULT (red) LED is on. The INV
(green) LED is off.
Figu r e 5 - 2 9 , Tfm r Ove r t e m p Fa u lt
Fault XX appears on the LCD and
the FAULT (red) LED is on. The INV
(green) LED is off.
Note: XXs are j ust placeholders for
t he act ual charact ers t hat appear.
Figu r e 5 - 3 0 , Un k n ow n Fa u lt
5.0 Operation
36