UPS5000-S-1200 kVA
User Manual
2 Overview
Issue 04 (2019-06-25)
Copyright © Huawei Technologies Co., Ltd.
25
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.
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
this ECM is being upgraded.
Blinking at 4 Hz
The DSP of the ECM is being upgraded or
not configured.
ALM
Yellow
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.
FAULT
Red
Steady on
The ECM has a critical alarm.
Off
The ECM has no critical alarm or the DSP
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 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 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.
Specifications
Hot-swappable
1 U high