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UPS5000-E-125 kVA
User Manual (Integrated UPS 3.0, 02291136)
2.3.4.4 Monitoring Interface Card
● Only once being set will dry contact signals take effect. Disable unused dry
● In a parallel system, ensure that used dry contacts properly connect to each
The monitoring interface card provides external ports as well as monitoring and
control functions for the MDU. The ports include the ambient temperature and
humidity sensor port, FE port, battery temperature monitoring port, and network
management port. The MDU monitors the UPS, allows users to set parameters,
delivers commands, reports system information, and displays key UPS information
and parameters on the LCD.
Figure 2-14 Monitoring interface card
Table 2-7 Ports on the monitoring interface card
Port
DO_1
Issue 01 (2022-09-26)
NO TE
● A port on the dry contact interface card takes effect only after it is set on the
monitoring system. Disable the unused dry contact signals .
● 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.
● Signal cables must be double-insulated twisted cables. If the cable length is within 25–
50 m, the cross-sectional area must be 0.5–1.5 mm
NO TICE
contact signals on the monitoring system.
UPS.
NO TE
The maximum voltage and current of ports DO_1 to DO_4 are 30 V DC, 1 A or 60 V DC, 0.5
A respectively.
Silk Screen Description
NO
Copyright © Huawei Digital Power Technologies Co., Ltd.
● DO_1, DO_2, DO_3, and DO_4 indicate alarm
outputs. The default values are Critical alarm,
2
.
2 Overview
38
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