Huawei UPS5000-E Series User Manual page 48

UPS5000-E-(350 kVA–800 kVA)
User Manual (50 kVA Power Modules)
Figure 2-23 ECM
Table 2-4 Ports on the ECM
Silk Screen
PARALLEL
BSC
Table 2-5 Indicator description
Indicator
NORMAL
ALM
FAULT
Issue 15 (2022-01-30)
Description
The PARALLEL port transmits parallel signals between racks.
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.
NO TE
For a single UPS, the parallel cable is not needed.
Color
Green
Yellow
Red
Copyright © Huawei Technologies Co., Ltd.
Status Description
Steady This ECM is the active ECM.
on
Blinking This ECM is the standby ECM and it is ready.
at 0.5
Hz
Off This ECM is not ready or the software of this
ECM is being upgraded.
Blinking The software of the ECM is being upgraded or
at 4 Hz not configured.
Steady The ECM has a minor alarm, but it does not
on need to be replaced.
Off The ECM has no minor alarm or the software
of the ECM is being upgraded.
Steady The ECM has a critical alarm.
on
2 Overview
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