Conext XW+ 6848 NA Owner's Manual page 123

Table 4-6 Fault Messages
Fault
Number Message
F68 Transformer Over
Temperature
F69 External Sync
Failed
F70 Check Phase
Configuration
F71 Battery Discharge
Over Current
F72 External AC
Contactor
Malfunction
F500 Silicon Serial ID
Failure
975-0240-01-01
Fault Type Cause
Automatic The transformer
temperature is over
140 °C.
Manual
Automatic The unit cannot qualify its
AC input because of an
incorrect three-phase
installation. For example,
phase B and phase C are
reversed, either through
miswiring or incorrect
Connections and Inverter
Mode settings.
Manual There is an excessive
load on the Li-Ion battery.
(The fault applies only to
Li-Ion batteries.)
Manual The External AC
Contactor was not set as
expected.
Manual Silicon Serial ID Failure
Faults and Warnings
Solution
The fault clears when the
transformer temperature falls
to 125 °C. Ensure adequate
ventilation around the Conext
XW+. Reduce AC loads.
Check connections and
cable on external AC sync
port. In a single-inverter
system, nothing must be
plugged into the AC sync
port. Clear fault and try again.
If these steps fail, the unit
requires service.
1. Make sure that only one
unit on each phase is
configured as the master.
Make sure each unit has a
unique Device Number and
that Inverter Mode and
Connections have been
configured correctly. See
"Three-Phase Configuration"
on page 3–43 and
"Connections Menu" on
page 3–45.
2. Disconnect all units and
make sure that the three-
phase wiring is correct.
Change the default threshold
of the max battery discharge
current limit or reduce the
load.
Check why the AC contactor
has failed. Check for fusing of
coil, wiring and connections.
Verify that the AC contactor
has power.
Service required.
4–25