UPS5000-E-(40 kVA-320 kVA)
User Manual
2 Overview
Issue 10 (2015-09-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
26
Port
Silk
Screen
Description
default, it indicates minor alarms. The maximum voltage is 30
V DC, and the maximum current is 1 A.
DO_3
NO
DO indicates critical alarms, minor alarms, bypass mode,
battery mode, low battery voltage, or D.G. control. DO_3
indicates any of the six meanings (except for D.G. control); by
default, it indicates bypass mode. The maximum voltage is 30
V DC, and the maximum current is 1 A.
COM
DO_4
NO
DO indicates critical alarms, minor alarms, bypass mode,
battery mode, low battery voltage, or D.G. control. DO_4
indicates any of the six meanings (except for D.G. control); by
default, it indicates battery mode. The maximum voltage is 30
V DC, and the maximum current is 1 A. When the UPS works
in intelligent mode, DO_4 indicates D.G. control, which
cannot be changed.
COM
DB26
MDU
Provides FE, RS485, Inter-Integrated Circuit (I2C), and
control area network (CAN) signals.
Battery
temperatur
e sensor
port
B_TEMP
Connects to an indoor battery temperature sensor. This port
can connect to a short-distance battery temperature sensor.
Southboun
d port 2
COM2
Connects to a southbound device, such as a BMU.
Southboun
d port 1
COM1
Connects to an ambient temperature and humidity sensor over
two wires.
Network
port
FE
N/A
Northboun
d
communic
ations port
RS485
Connects to a northbound network management device or
third-party network management device over two wires.
Dry contact signals take effect only after you set them on the LCD. Set unused dry contact signals to
Disable
.
Set the EPO port to NO or NC as required.
In a parallel system, ensure correct connections between dry contacts and each UPS.
Signal cables must be double-insulated twisted cables. If the cable length is 25–50 m, the
cross-sectional area must be 0.5–1.5 mm
2
.
2.5 Typical Configurations