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UPS5000-A-500 kVA
User Manual (e-shelter)
Figure 2-8 UPS structure
2.4 Control Unit
2.4.1 Overview
In a standard configuration, the control unit consists of two energy control modules (ECMs),
one dry contact card, and one monitoring interface card. The four cards are hot swappable.
One subrack is reserved above the dry contact card. A backfeed protection card or dry contact
extended card can be inserted into this subrack.
Figure 2-9 Signal panel on the control unit
Issue 02 (2020-01-10)
(1) Power units
(4) Maintenance bypass switch
(1) Ground terminal
(4) ECM 1 ready
switch
Copyright © Huawei Technologies Co., Ltd.
(2) Control unit
(5) Bypass unit
(2) Parallel port 1
(5) Indicators for ECM 1
(3) Power distribution unit cover
(3) BSC port 1
(6) Parallel port 2
2 Overview
20
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