Huawei UPS5000-E-30 kVA-FM - Page 38

Silk Screen Description
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.
NO TE
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.
Blinking
at 0.5
Hz
This ECM is the standby ECM and it is ready.
O This ECM is not ready or the software of this
ECM is being upgraded.
Blinking
at 4 Hz
The software of the ECM is being upgraded or
not congured.
ALM Yellow Steady
on
The ECM has a minor alarm, but it does not
need to be replaced.
O The ECM has no minor alarm or the software
of the ECM is being upgraded.
FAULT Red Steady
on
The ECM has a critical alarm.
O The ECM has no critical alarm or the software
of the ECM is being upgraded.
Functions
● As a control interface for the entire system, the ECM communicates with each
module and provides a bus for communication between the dry contact card
and the system control 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 UPS and a parallel system, and reports the
UPS status information to other monitoring modules.
UPS5000-E-(30 kVA–120 kVA)-FM
User Manual 2 Overview
Issue 03 (2022-01-30) Copyright © Huawei Technologies Co., Ltd. 30