UPS5000-S-1600 kVA
User Manual
2 Overview
Issue 04 (2020-03-03)
Copyright © Huawei Technologies Co., Ltd.
29
Ports are protected by a security mechanism.
2.3.5.1.2 ECM
Appearance
The control module consists of two energy control modules (ECMs) in active/standby mode.
Figure 2-14
ECM
Table 2-4
Ports on the ECM
Silk Screen
Control
Module 1
Control
Module 2
Description
PARALLEL
In use
Controls the
entire UPS
system.
(Preinstalled)
In use
Controls the
entire UPS
system.
(Preinstalled)
The PARALLEL port transmits
parallel signals between racks.
BSC
In use
Controls the
entire UPS
system.
Reserved
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.
Table 2-5
Indicator description
Indicator
Color
Status
Description
NORMAL
Green
Steady on
This ECM is the active ECM.
Blinking at 0.5
Hz
This ECM is the standby ECM and it is
ready.
Off
This ECM is not ready or the CPLD of