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UPS5000-E-(25 kVA-75 kVA)-BF
User Manual
2 Overview
Issue 07 (2019-12-13)
Copyright © Huawei Technologies Co., Ltd.
31
Silk Screen
Description
Status
Initial Status
STATUS_0V
SWITCH
STATUS_BP
Port for monitoring the
bypass input circuit breaker
Connected: circuit
breaker ON
Disconnected:
circuit breaker
OFF
Connected
SWITCH
STATUS_0V
Port for signal ground
SPD
Port for monitoring the input
AC surge protective device
(SPD)
Connected: SPD
enabled
Disconnected:
SPD disabled
Connected
0V
Port for signal ground
The dry contact interface card takes effect only after it is set on the monitoring system. Set the
unused dry contact signal to the unused status.
Set the EPO port to NO or NC as required.
When multiple UPSs are paralleled, all dry contact signals to be used need to connect to each UPS.
Single cables require dual-insulated twisted cables. If the length of a power cable is within 25–50 m,
its cross-sectional area must be 0.5 mm
2
to 1.5 mm
2
.
Functions
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).
Specifications
Hot-swappable
0.5 U high