Outback FX-R Series Operator Manual

Troubleshooting
52 900-0167-01-01 Rev A
Error Messages
An error is caused by a critical fault. In most cases when this occurs, the
E
RROR
indicator will
illuminate and the inverter will shut down. (See page 11 for the FXR inverter’s LED indicators.)
A MATE3-class system display will show an event and a specific error message. This screen
is viewed using the Home screen’s soft keys. (See the system display literature for more
instructions.) One or more messages will display
Y
(yes). If a message says
N
(no), it is not the
cause of the error.
Some errors will reset automatically when the cause is resolved. These are noted.
It is possible to clear errors by resetting the inverter. To reset, turn the inverter off and then on.
Other possible steps are shown below. Each should be followed by resetting the inverter.
Table 7 Erro
r
Troubleshooting
Message Causes Possible Remedy
Low Output
Voltage
Inverter’s AC regulation cannot be maintained
under high load conditions.
Check loads and measure current draw.
Remove loads as necessary.
AC Output
Shorted
Inverter exceeded its maximum surge current
due to severe overload.
Check the loads and wiring. This issue is
usually the result of a wiring problem (a short),
as opposed to a poorly-sized load.
AC Output
Backfeed
Usually indicates another AC power source
(out of phase with the inverter) was connected
to the unit’s AC output.
Disconnect the
AC
O
UT
wires from the
inverter. Check the wires (not the inverter)
with an AC voltmeter. If an AC source is
present, shut it off.
Stacking Error Programming problem among stacked units.
(Occurs if master inverter was not designated.)
Can also occur if
AC Output Backfeed
occurs.

Check stacking programming and
designation of master. (See page 39.)

Check for output backfeed from an
external source. Disconnect output if
necessary.
Low Battery V
3
DC volta
ge is below the low battery cut-out
set point, usually due to battery discharge.
It occurs after 5 minutes at this voltage.
This error can be triggered by other causes.
It can appear along with
Low Output Voltage
,
AC Output Shorted
, or
AC Output Backfeed
.

If this error accompanies other errors,
treat those conditions as appropriate.

If it occurs by itself: Recharge the
batteries. The error will clear
automatically if an AC source is
connected and the charger turns on.
High Battery V
3
DC voltage exceeded acceptable level. See
page 22.
Check the charging source. This problem is
usually the result of external charging.
Over
Temperature
3
Inverter has exceeded its maximum allowed
operating temperature. See page 54.
Allow the inverter to remain off to reduce the
temperature, or add external cooling.
Comm Fault The inverter has suffered an internal
communication failure.
Unit may be damaged and requires repair.
Loose DC Neg
Terminals
Loose DC connection on internal power
module.
Tighten all DC connections between inverter
and battery. If the error is not resolved, unit
may be damaged and requires repair.
Battery Voltage
Sense
Internal sensing has detected battery voltages
below 8 Vdc or above 18 Vdc for a 12-volt model
(or equivalent for higher-voltage models).
If these readings are not correct, unit may be
damaged and requires repair.
AC Relay Fault AC transfer relay damaged. Unit may be damaged and requires repair.
3 This error will clear automatically when the cause of the error is resolved. The inverter will begin functioning again when
this occurs.