Huawei UPS5000-S-400K-SM User Manual page 61

UPS5000-S-(350 kVA-800 kVA)
User Manual
Silk Screen
SWITCH
STATUS_0V
SWITCH
STATUS_MT
SWITCH
STATUS_0V
SWITCH
STATUS_BP
SWITCH
STATUS_0V
SPD
0V
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 12 (2023-05-26)
Description
Port for signal ground
Port for monitoring the
maintenance circuit
breaker
Port for signal ground
Port for monitoring the
bypass input circuit
breaker
Port for signal ground
Port for monitoring the
input AC surge protective
device (SPD)
Port for signal ground
NO TE
● 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 Digital Power Technologies Co., Ltd.
2 Product Overview
Status
● 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 .
Initial
Status
Disconnecte
d
Connected
Connected
52