Huawei UPS5000-S Series User Manual page 45

UPS5000-S-(350 kVA-800 kVA) User Manual
User Manual
Figure 2-24 ECM
Table 2-4 Ports on the ECM
Silk Screen
PARALLEL
BSC
Table 2-5 Indicator description
Indicator
NORMAL
ALM
FAULT
Issue 05 (2019-02-27)
For a single UPS, the parallel cable is not needed.
Color
Green
Yellow
Red
Copyright © Huawei Technologies Co., Ltd.
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.
Status Description
Steady on This ECM is the active ECM.
Blinking at 0.5 This ECM is the standby ECM and it is
Hz ready.
Off This ECM is not ready or the CPLD of
this ECM is being upgraded.
Blinking at 4 Hz The DSP of the ECM is being upgraded or
not configured.
Steady on The ECM has a minor alarm, but it does
not need to be replaced.
Off The ECM has no minor alarm or the DSP
of the ECM is being upgraded.
Steady on The ECM has a critical alarm.
Off The ECM has no critical alarm or the DSP
of the ECM is being upgraded.
2 Overview
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