Schneider Electric User Guide

Faults and Warnings
975-0240-01-01 4–25
F68 Transformer Over
Temperature
Automatic The transformer
temperature is over
140 °C.
The fault clears when the
transformer temperature falls
to 125 °C. Ensure adequate
ventilation around the Conext
XW+. Reduce AC loads.
F69 External Sync
Failed
Manual 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.
F70 Check Phase
Configuration
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.
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.
F71 Battery Discharge
Over Current
Manual There is an excessive
load on the Li-Ion battery.
(The fault applies only to
Li-Ion batteries.)
Change the default threshold
of the max battery discharge
current limit or reduce the
load.
F72 External AC
Contactor
Malfunction
Manual The External AC
Contactor was not set as
expected.
Check why the AC contactor
has failed. Check for fusing of
coil, wiring and connections.
Verify that the AC contactor
has power.
F500 Silicon Serial ID
Failure
Manual Silicon Serial ID Failure Service required.
Table 4-6 Fault Messages
Fault
Number Message Fault Type Cause Solution
Conext XW+ Owner's Guide NA (975-0240-01-01).book Page 25 Monday, November 27, 2017 10:00 AM