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UPS5000-A-(200 kVA-800 kVA)
User Manual
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
Figure 2-29 ECM
Table 2-4 Ports on the ECM
Silk Screen
PARALLEL
BSC
Issue 05 (2020-04-27)
2-29.
Description
The PARALLEL port transmits parallel signals.
This port is used in a dual-bus system to balance output
frequencies and phases between UPS systems, ensuring that two
buses can switch with each other.
BSC cables are hot-swappable.
Copyright © Huawei Digital Power Technologies Co., Ltd.
(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
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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