● It is recommended that you install the battery temperature sensor (secured with an
adhesive) on the surface of batteries in the middle of the battery rack.
● Check the upstream input power cable connection. If the PE wire and neutral wire are
short-circuited, the system is a TN-C system. If the PE wire and neutral wire are
connected separately, the system is a TN-S system.
Figure 2-7 Installing magnetic rings for the BATT.TEMP, MBS, and EPO ports
If the 15 kVA/20 kVA UPS uses the BATT.TEMP, MBS, and EPO ports, ensure that the
following operations are performed:
● The BATT.TEMP port is connected to a battery temperature sensor. The cable connected
to the BATT.TEMP port is wrapped with magnetic ring 1 (at least
ve circles).
● The MBS and EPO ports are connected to circuit breakers. The cables connected to the
MBS and EPO ports are wrapped with magnetic ring 2 (at least ve circles).
● Model of magnetic rings 1 and 2: DN85H or E2F
In a UPS2000-G-15 kVA/20 kVA parallel system using the TN-C power distribution
system, there are two scenarios for installing magnetic rings on the UPS mains
input PE cables:
UPS2000-G- (6 kVA-20 kVA)
User Manual 2 Quick Introduction
Issue 18 (2021-07-16) Copyright © Huawei Technologies Co., Ltd. 22
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