Ecm - Huawei UPS5000-A User Manual

UPS5000-A-(400 kVA-600 kVA)
User Manual (60 kVA, PF=0.9)
Figure 2-13 Signal panel of the control unit
(1) Ground terminal
(4) Ready switch on ECM 1
(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 that work in active/standby mode. Each
ECM provides two ports, that is, a BSC port in the upper part and a parallel port in
the lower part, as shown in
Figure 2-14 ECM
Table 2-2 ECM port functions
Silk Screen
PARALLEL
BSC
Issue 06 (2022-01-27)
(2) Parallel port 1
(5) ECM 1 indicators
(8) Ready switch on ECM 2
(11) Dry contact ports
(14) Fast Ethernet (FE) port
(17) Battery temperature
sensor port
Figure
Description
The PARALLEL port transmits signals between cabinets connected
in parallel.
The BSC 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 Technologies Co., Ltd.
2-14.
2 Overview
(3) BSC port 1
(6) Parallel port 2
(9) ECM 2 indicators
(12) MDU port
(15) COM2 port
(18) Optional card subrack
cover
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