● 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, the RS485
communication fails.
● Only once being set will dry contact signals take eect. Disable unused dry
contact signals on the monitoring system.
● In a parallel system, ensure that used dry contacts properly connect to each
UPS.
● The RS485 bus of each device is equipped with an independent 120-ohm
termination resistor. You are advised not to connect RS485 communications
cables to multiple devices in parallel.
Figure 2-23 Control ports
(1) Dry contacts
(2) Battery temperature sensor
port
(3) Port for an ambient
temperature and humidity
(T/H) sensor
(4) RS485 port (5) FE port (6) Slot for an optional dry
contact card
(7) BSC port (8) Parallel ports
RS485 cables and FE cables must be shielded cables.
Parallel Port and BSC Port
Identier
Name Description
BSC BSC port The BSC port is used in a multi-bus system to synchronize
output frequencies and phases among UPS systems, ensuring
that multiple buses can switch between each other.
BSC cables are hot-swappable.
UPS5000-A-(30 kVA-120 kVA)
User Manual 2 Product Overview
Issue 17 (2024-02-21) Copyright © Huawei Digital Power Technologies Co., Ltd. 41
To Next Page
Loading...
