Dry Contact Card - Huawei UPS5000-E-60 kVA User Manual

UPS5000-E-(60 kVA-125 kVA)
User Manual (Integrated UPS 3.0)
Silk Screen
BSC
Table 2-5 Indicator description
Indicator
NORMAL
ALM
FAULT

2.3.4.3 Dry Contact Card

The dry contact card allows the UPS to detect and manage the switch status of
the battery system (including the external battery switch) and implement remote
emergency power-off (EPO).
Figure 2-15 Dry contact card
Issue 04 (2022-12-30)
Color
Green
Yellow
Red
Copyright © Huawei Digital Power Technologies Co., Ltd.
Description
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
Hz is ready.
Off This ECM is not ready or the software
of this ECM is being upgraded.
Blinking at 4 The software of the ECM is being
Hz 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
software of the ECM is being
upgraded.
Steady on The ECM has a critical alarm.
Off The ECM has no critical alarm or the
software of the ECM is being
upgraded.
2 Product Overview
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