Outback FX-R Series Installation Manual

Installation
40 900-0166-01-01 Rev A
When installing a three-phase system, observe the following rules.

Three-phase stacking requires both the system display and the communications manager. See the
HUB10.3 literature for any required jumper configurations.

The inverter that is mounted physically lowest is always master and is programmed as
Master
.
Mounting below the other inverters allows the master to avoid heat buildup and remain relatively cool as it
sees the greatest duty cycle.

The master must be connected to port 1 of the communications manager. Other inverters must not be
selected as master.

Any other inverter on the Phase A output (parallel with the master) should be assigned as
Slave
during
programming. These can be connected to ports 2 or 3. Phase A inverters cannot use other ports.

The subphase master for the Phase B output must be programmed as
B Phase Master
. It must be
connected to port 4.

Any other inverter on the Phase B output (parallel with the B subphase master) should be assigned as
Slave
during programming. These can be connected to ports 5 or 6. Phase B inverters cannot use
other ports.

The subphase master for the Phase C output must be programmed as
C Phase Master
. It must be
connected to port 7.

Any other inverter on the Phase C output (parallel with the C subphase master) should be assigned as
Slave
during programming. These can be connected to ports 8, 9, or 10. Phase C inverters cannot use
other ports.

All wiring and circuit breakers must be sized appropriately for loads and inverter power.

The AC input (generator or utility grid) must be a three-phase wye configuration source of the proper
voltage and frequency.

When wiring the AC source to the inverters, local codes may require the inverter circuits to be located at
the opposite end of the panel from the main circuit breaker. This prevents overloading of the AC bus.