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UPS5000-A-(200 kVA-800 kVA)
User Manual
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 2-28 Signal panel on the control unit
(1) Ground terminal
(4) ECM 1 ready
switch
(7) BSC port 2
(10) Dry contact card
(13) RS485 port
(16) COM1 port
2.4.2 ECM
The control unit consists of two ECMs in active/standby mode. Each ECM provides one bus
synchronization controller (BSC) port and one parallel port, as shown in Figure 2-29.
Figure 2-29 ECM
Issue 03 (2019-02-15)
(2) Parallel port 1
(5) Indicators for ECM 1
(8) ECM 2 ready switch
(11) Dry contacts
(14) Fast Ethernet (FE) port
(17) Battery temperature sensor
port
Copyright © Huawei Technologies Co., Ltd.
2 Overview
(3) BSC port 1
(6) Parallel port 2
(9) Indicators for ECM 2
(12) MDU port
(15) COM2 port
(18) Optional card subrack
cover
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