Outback FX-R Series Operator Manual

Operation
28 900-0167-01-01 Rev A
Transfer
The inverter uses a transfer relay to alternate between the states of inverting and of accepting
an AC source. Until the relay energizes, the output terminals are electrically isolated from the
input. When it closes, the input and output terminals become electrically common. When the
relay changes states, the physical transfer delay is
approximately
16 milliseconds.
CAUTION: Equipment Damage
Current draw in excess of the transfer relay rating can damage the transfer relay. This
damage is not covered by warranty. Use protective devices of appropriate size.
The relay contacts are limited to 60 amps per phase or leg. The continuous loads on that output
should never exceed this number. When connected to an AC source, the FXR inverter cannot
limit the load current. An overload condition is possible.
The inverter does not filter or actively condition the AC source. The voltage and power quality
received by the output loads is the same as that of the source. If the voltage or quality do not
meet the inverter’s input requirements, it will disconnect and return to the inverting mode.
NOTES
:

To ensure a smoother transition, it may be advisable to raise the inverter’s lower acceptance limit.
The default setting is 108
Vac. A higher setting will cause the inverter to transf
er sooner in the event
of a quality problem.

If the AC source meets the inverter’s requirements but is irregular, any fluctuations will be transferred
to the loads. If the loads are sen
sitive, it may be necessary to improve the qualit
y of the AC source.

The
Generator
input mode is intended to accept irregular or unfiltered AC sources and is more likely
to do so than
other modes. This should be considered before using this mode with sensitive
loads.
(See pa
ge 14
.)
If the charging function is turned off, the inverter will transfer power from the source but will not
use it to charge. If the inverting function is turned off, the inverter will transfer (“pass through”)
the source power when connected, but will not invert when the source is removed.