UPS5000-S-600 kVA
User Manual (Three-phase, Three-wire)
2 Overview
Issue 05 (2019-12-20)
Copyright © Huawei Technologies Co., Ltd.
29
Indicator
Color
Status
Description
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 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.
Figure 2-14
Logical connections for CAN communication