Disconnect Messages; Table 12 Disconnect Troubleshooting - Outback FXR2012A Operator's Manual

Disconnect Messages

Disconnect messages explain why the inverter has disconnected from an AC source after previously
being connected. The unit returns to inverting mode if turned on. The Last AC Disconnect screen is
viewed using the AC INPUT hot key on the MATE3. One or more messages will display Y (yes). If a
message says N (no), it is not the cause of the disconnection. The MATE3 system display may generate
a concurrent event and warning message following the disconnection. (See page 63.) If the AC source
is removed, the warning will be blank, but the cause of the last disconnection will remain.
Disconnect messages only display the reason for the disconnection; they cannot correct it. It is usually
the result of external conditions, not an inverter fault. If the condition is corrected, the inverter will
reconnect. A few settings can be changed to accommodate problems with the AC source.
The reasons shown in the Sell Status screen for ceasing to sell power (see next page) may be the same
as disconnect messages. If the Grid Interface Protection settings are exceeded (see page 20), the
inverter will disconnect from the utility grid.
Table 12 shows the primary seven reasons for disconnection. An eighth field may be visible, but it can
feature several different messages which vary with conditions. A list of these messages and their
definitions is featured on the OutBack website at www.outbackpower.com.
Message Definition
Frequency Too High The AC source has exceeded acceptable
frequency levels.
Frequency Too Low The AC source has dropped below
acceptable frequency levels.
Voltage > Maximum The AC source has exceeded acceptable
voltage levels.
The AC source has dropped below
Voltage < Minimum
acceptable voltage levels.
Usually indicates that another AC power
Backfeed
source (out of phase with the inverter) was
connected to the AC output.
Can also occur if an out-of-phase AC source
is connected to the AC input.
Phase Lock The unit cannot remain in phase with an
erratic AC source.
The grid seems to be present but normal
Island Detect
grid conditions are not detected. This can
occur if the inverter's input is powered by
another inverter instead of the grid. It may
be the result of an open main disconnect.
900-0167-01-00 Rev A
Table 12 Disconnect Troubleshooting
Troubleshooting
Possible Remedy
Check AC source. If it is a generator, reduce speed.
Check AC source. If it is a generator, increase speed.
Check AC source. The inverter's acceptance range is
adjustable.
NOTE: Adjusting the range may accommodate a
problematic AC source, but it will not fix it.
Check AC source. The inverter's acceptance range is
adjustable.
NOTE: Adjusting the range may accommodate a
problematic AC source, but it will not fix it.
Disconnect the AC OUT wires. Check the wires (not
the inverter) with an AC voltmeter. If an AC source is
present, shut it off. (This is more often accompanied
by an AC Output Backfeed error.)
Check input source and wiring. This can be caused by
a source with phase problems.
Check AC source. This can be caused by a generator
with a poorly regulated output. Some generators
perform this way when low on fuel. If necessary, use
the Generator input mode. (See page 18.)
Check all input disconnects or circuit breakers for an
open circuit. Check for any other inverters installed in
the system and disable them.
This may (rarely) occur with a generator. If necessary,
use the Generator input mode. (See page 18.)
65