Huawei UPS5000-E Series - Ecm

UPS5000-E-(50 kVA-300 kVA)
User Manual (50 kVA Power Modules)
2 Overview
Issue 11 (2019-12-20)
Copyright © Huawei Technologies Co., Ltd.
34
(9) Indicators for ECM 2
(10) Dry contact card
(11) Dry
contacts
(12) MDU port
(13) RS485 port
(14) Fast Ethernet (FE)
port
(15) COM2
port
(16) COM1 port
(17) Battery temperature
sensor port
(18) Optional card
subrack cover
Ports are protected by a security mechanism.
2.3.4.2 ECM
Appearance
The control module consists of two energy control modules (ECMs) in active/standby mode.
Figure 2-18 ECM
Table 2-4 Ports on the ECM
Silk Screen
Description
PARALLEL
The PARALLEL port transmits parallel signals between racks.
BSC
The BSC port is used in a dual-bus system to synchronize output
frequencies and phases between UPS systems, ensuring that two buses
can switch with each other.
BSC cables are hot-swappable.
For a single UPS, the parallel cable is not needed.
Table 2-5 Indicator description
Indicator
Color
Status
Description
NORMAL
Green
Steady on
This ECM is the active ECM.