Schneider Electric User Guide

Troubleshooting
4–8 975-0240-01-01
AC1 or AC2 LED is
flashing, but will not
start charging
(allow 40 seconds to
synchronize).
AC voltage and frequency at the AC
input terminal are within nominal
range, but the inverter output is not
yet synchronized to the AC source.
There are four possible causes:
1) The inverter may already be
synchronized to another AC source.
2) The AC voltage or frequency
applied to the input is outside of the
acceptable range of the inverter.
3) AC voltage and frequency at the
AC input terminals are within
acceptable range, but the inverter is
not yet synchronized to the AC
source.
4) A split phase unit may be
connected to two legs of three-phase
service.
1) The inverter is operating normally.
2) Adjust the AC acceptance settings
(see “AC Input Settings” on page 3–
24) or possibly service an unstable
generator.
3) For 120 V/240 V units, measure
voltage in four places on the input of
the inverter: L1-N, L2-N, L1-L2, and
N-Ground. These readings must be
approximately 120, 120, 240, and 0
respectively. Make sure these
readings are within the tolerance for
AC acceptance and are stable for at
least 60 seconds. See Table 3-5 on
page 3–24.
4) Connect the split phase unit to split
phase power; use an isolation
transformer to create a separately
derived neutral; or acquire three or six
units, convert them to single phase,
and then connect a three-phase
system to the three-phase source.
Problem Possible Cause Solution
Conext XW+ Owner's Guide NA (975-0240-01-01).book Page 8 Monday, November 27, 2017 10:00 AM