Schneider Electric User Guide

Battery Charger Troubleshooting
975-0240-01-01 4–9
Charger amperage
drops off before full
charging has finished
(no Fault LED).
AC frequency at the AC input terminal
may be out-of-tolerance (too high or
low) or the AC voltage may be outside
the Hi AC Volt or Lo AC Volt
settings. AC input voltage
approaching the low disconnect level.
The charge settings are incorrectly
configured for your battery type.
Ambient temperature may be high,
causing unit to overheat and ramp
down the charging.
Battery bank has one or more bad
cells or inadequate wiring.
Battery Management System on
Lithium Ion battery has interrupted
charging.
Check the settings on the AC Settings
menu. Check for the correct AC
voltage or frequency at the AC input
terminal. If the AC source is a
generator, adjust the AC voltage or
frequency accordingly.
Increase the difference between the Hi
AC Volt (AC1) and Lo AC Volt (AC1)
settings to allow synchronization.
Select the correct battery type or
configure a Custom battery type.
Cool the unit down or check for
anything preventing air flow around the
unit.
Check tightness of battery connections
and interconnections. Replace battery.
Consult with battery manufacturer for
battery compatibility.
Charger stops before
full charging (or
equalization) has
finished.
Fault LED flashes and
AC output drops
momentarily.
Cold temperature around batteries
with battery temperature sensor (BTS)
installed may be causing unit to reach
High Batt Cut Out setting.
Disconnect BTS during charging or
increase High Batt Cut Out setting.
Problem Possible Cause Solution
Conext XW+ Owner's Guide NA (975-0240-01-01).book Page 9 Monday, November 27, 2017 10:00 AM