Huawei UPS5000-A-400K-SL User Manual page 123

40 kva power modules
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UPS5000-A-(400 kVA-500 kVA)
User Manual (40 kVA Power Modules)
Battery parameter settings have great impact on battery maintenance, battery lifespan, and
UPS discharge time. When you set battery parameters, note the following:
Battery string sharing is unavailable when Single/Parallel is Single.
Battery string sharing affects the actual charge current and the estimated discharge time.
An incorrect setting will cause a high or low charge current, which tends to damage
batteries. An incorrect estimated discharge time may lead to a data backup fault.
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.
Set battery parameters, as shown in
Figure 4-27 Battery Param. screen 1
Issue 06 (2020-01-10)
Figure
Copyright © Huawei Technologies Co., Ltd.
4-27to
Figure
4-31.
4 User Interface
115

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