Huawei UPS5000-E Series - Installation; 3.1 Installation Preparations

UPS5000-E-(50 kVA-300 kVA)
User Manual (50 kVA Power Modules)
2 Overview
Issue 11 (2019-12-20)
Copyright © Huawei Technologies Co., Ltd.
39
Port
Silk
Screen
Description
DO_4
NO
closed, No power supplied, Mains supplies
power, ECO mode, Battery test, and Batt.
Volt. Below Thres..

Configure power segment settings based on
backup time.
COM
DB26
MDU
Provides FE, RS485, I2C, and CAN signals.
Battery temperature
sensor port
B_TEMP
Connects to an indoor battery temperature sensor.
Southbound
communications port 1
COM1
Connects to an ambient temperature and humidity
sensor over two wires.
Southbound
communications port 2
COM2
Connects to a southbound device, such as an
iBattery.
Network port
FE
Connects to the network port on a PC. Network
port for connecting to the web service and for
SNMP networking.
Northbound
communications port
RS485
Connects to a northbound network management
device or a third-party network management
device over two wires.

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
.

RS485 cables and FE cables must be shielded cables.
Figure 2-22 and Figure 2-23 are recommended wiring methods for DO ports.
Figure 2-22 Wiring method 1