Huawei UPS5000-S-880 kVA User Manual page 39

UPS5000-S-880 kVA
User Manual (CMI)
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


Issue 02 (2020-01-10)
Silk Screen Description
EPO_NC EPO port
EPO_12V +12 V
SWITCH Port for monitoring the UPS
STATUS_OUT output circuit breaker
SWITCH Port for signal ground
STATUS_0V
SWITCH Port for monitoring the
STATUS_MT maintenance circuit breaker
SWITCH Port for signal ground
STATUS_0V
SWITCH Port for monitoring the
STATUS_BP bypass input circuit breaker
SWITCH Port for signal ground
STATUS_0V
SPD Port for monitoring the input
AC surge protective device
(SPD)
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
Hot-swappable
0.5 U high
Copyright © Huawei Technologies Co., Ltd.
Status
is triggered.
If the normally closed
(NC) port is
disconnected from the
EPO_12V port, EPO
is triggered.
 Connected: circuit
breaker ON
 Disconnected:
circuit breaker
OFF

Disconnected:
circuit breaker ON
 Connected: circuit
breaker OFF
 Connected: circuit
breaker ON
 Disconnected:
circuit breaker
OFF

Connected: SPD
enabled
 Disconnected:
SPD disabled
2 2
to 1.5 mm .
2 Overview
Initial Status
Connected
Connected
Disconnected
Connected
Connected
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