Silk Screen Signal Description Status
Description
Initial
Status
0V Port for signal ground
● Open: The input
AC SPD fails.
4.3.4 Monitoring Interface Card
The monitoring interface card provides external ports as well as monitoring and
control functions for the MDU. The monitoring interface card provides 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.
● The FE port resembles the RS485 port. Therefore, follow the silk screens when
you connect communications cables. If you mistake the RS485 port as the FE
port during cable connection, the WebUI communication fails. If you mistake
the FE port as the RS485 port during cable connection, RS485 communication
fails.
● Dry contact signals take
eect after you set them. Disable unused dry contact
signals on the monitoring system.
● When multiple UPSs are connected in parallel, all dry contact signals to be used
need to connect to each UPS.
Figure 4-7 Monitoring interface card
DO_1 to DO_4 meet the maximum voltage and current requirements of 30 V DC/1 A or 60
V DC/0.5 A.
UPS5000-H-(400 kVA-600 kVA)
User Manual (100 kVA Power Module) 4 Component Description
Issue 01 (2020-11-30) Copyright © Huawei Technologies Co., Ltd. 34
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