Huawei UPS5000-E Series User Manual page 135

UPS5000-E-(50 kVA-125 kVA)
User Manual (Integrated UPS 3.0)
Battery parameter settings have great impact on battery maintenance, battery lifespan, and
UPS discharge time. When you set battery parameters, note the following:

Retain default settings for Chg. cur. limiting coef. and Cell float voltage. Only
professional maintenance personnel are allowed to change the settings.

When you set parameters, ensure the following: Chg. cur. limiting coef. >
Transfer-to-equalized charging cur. Coef; Dis. cur. 0.1C EOD ≥ Dis. cur. 0.3C EOD ≥
Dis. cur. 0.5C EOD ≥ Dis. cur. 1.0C EOD.

Battery type must meet the actual situation. Currently, only VRLA batt. is supported.

Chg. volt. over range point and Dis. volt. over range point are used to check whether
the batteries in each battery string have the same charge voltage and discharge voltage.
When a value exceeds the specified range, an alarm is generated. The calculation formula
is (Charge/Discharge voltage - Average voltage)/Average voltage x 100%. The
charge/discharge voltage and average voltage are obtained from the BMU. If the BMU is
not configured, you do not need to set these two parameters.
Figure 4-44 Battery Param. screen 1
Figure 4-45 Battery Param. screen 2
Issue 09 (2019-12-20) Copyright © Huawei Technologies Co., Ltd.
4 User Interface
126