Huawei UPS5000-E-400 kVA User Manual page 34

UPS5000-E-(360 kVA-480 kVA)
User Manual (40 kVA Power Modules)
Table 2-1 Ports on the ECM
Table 2-2 Indicator description
Functions
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Issue 07 (2020-01-10)
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.
Indicator Color
NORMAL Green
ALM Yellow
FAULT Red
As a control interface for the entire system, the ECM communicates with each module
and provides a bus to communicate with the dry contact card. The ECM ensures
equalized output currents between modules so that load power is equally shared.
Provides module running information for the MDU.
Controls the running of a single UPS5000 and a parallel system, and reports the
UPS5000 status information to other monitoring modules.
The system provides three types of CAN communication: monitoring CAN
communication, intra-rack parallel CAN communication, and inter-rack parallel CAN
communication.
Copyright © Huawei Technologies Co., Ltd.
Status Description
Steady on This ECM is the active ECM.
Blinking at This ECM is the standby ECM and it is ready.
0.5 Hz
Off This ECM is not ready or the CPLD of this
ECM is being upgraded.
Blinking at The DSP of the ECM is being upgraded or not
4 Hz 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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