Schneider Electric User Guide

Faults and Warnings
975-0240-01-01 4–19
Table 4-6 Fault Messages
Fault
Number Message Fault Type Cause Solution
F1 AC Output Under
Voltage
Escalating
Auto Fault.
Must occur
3 times in
2 minutes
before
becoming a
manual fault.
AC under voltage
shutdown at 108 V. The
inverter has shut down to
protect the loads.
Clear the fault and attempt
restart. If problem persists,
call customer service.
F2 AC Output Over
Voltage
Escalating
Auto Fault.
Must occur
3 times in
30 seconds
before
becoming a
manual fault.
AC over voltage
shutdown at 135 V. The
inverter has shut down to
protect the loads.
Clear the fault and attempt
restart. If problem persists,
call customer service.
F17 Relay(s) Welded Manual The AC1 L1 transfer relay
is bad or an AC source
was wired directly to the
AC output.
Disconnect the inverter’s
output wiring. If error
continues, have unit serviced.
F18 Relay(s) Welded Manual The AC1 L2 transfer relay
is bad or an AC source
was wired directly to the
AC output.
Disconnect the inverter’s
output wiring. If error
continues, have unit serviced.
F19 Relay(s) Welded Manual The AC2 L1 transfer relay
is bad or an AC source
was wired directly to the
AC output.
Disconnect the inverter’s
output wiring. If error
continues, have unit serviced.
F20 Relay(s) Welded Manual The AC2 L2 transfer relay
is bad or an AC source
was wired directly to the
AC output.
Disconnect the inverter’s
output wiring. If error
continues, have unit serviced.
F21 Relay(s) Welded Manual An unidentified transfer
relay is bad or an AC
source was wired directly
to the AC output.
Disconnect the inverter’s
output wiring. If error
continues, have unit serviced.
F22 Relay(s) Welded Manual An unidentified L1
transfer relay is bad or an
AC source was wired
directly to the AC output.
Disconnect the inverter’s
output wiring. If error
continues, have unit serviced.
Conext XW+ Owner's Guide NA (975-0240-01-01).book Page 19 Monday, November 27, 2017 10:00 AM