Alarm Reference - Huawei iBAT 2.0-CIM01C2 User Manual

iBAT 2.0-CIM01C2
User Manual

9.2 Alarm Reference

Table 9-3 Alarm definition
Alarm Name
Current bias
SOH exception
Issue 07 (2019-01-02)
Alarm Severity
Minor
Minor
Copyright © Huawei Technologies Co., Ltd.
Possible Cause
 The detected current is
incorrect.

The loop resistance
values of different
battery strings are
inconsistent.
There is a weak battery in
the battery string.
9 Maintenance
Solution
1. Check that the Hall effect
sensor cable is connected
correctly. If the cable is
damaged, replace it.
2. Check the current
detected by the Hall
effect sensor. Prepare the
UPS backup power
supply and replace the
faulty Hall effect sensor.
3. Check the voltage drop
from the battery string to
the UPS battery input
terminal, and ensure that
the voltage drops from
various battery strings are
the same. Prepare the
UPS backup power
supply and replace the
cable from the battery
string to the UPS battery
input terminal where the
voltage drop is abnormal.
4. Check that new and old
batteries are not
connected in parallel in
each battery string. Mark
abnormal battery strings.
1. Check that new and old
batteries are not
connected in parallel in
each battery string. Mark
abnormal battery strings.
2. Fully charge the battery
string and prepare the
UPS backup power
supply. Then perform a
capacity test to query the
SOH of the battery string.
If the SOH is abnormal,
replace the battery string.
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