Huawei UPS5000-E User Manual page 53

UPS5000-E-(60 kVA-125 kVA)
User Manual (Integrated UPS 3.0)
● The FE port resembles the RS485 port. Therefore, follow the silk screens when
● Dry contact signals take effect after you set them. Disable unused dry contact
● The RS485 bus of each device is equipped with an independent termination
● Signal cables must be double-insulated twisted cables. If the cable length is
● RS485 cables and FE cables must be shielded cables.
● The RS485 bus of each device is equipped with an independent build-out
Figure 2-17 Appearance (8-pin COM1 port)
Issue 06 (2023-08-25)
NO TICE
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.
signals on the monitoring system.
resistor.
within 25–50 m, the cross-sectional area must be 0.5–1.5 mm
resistor. You are advised not to connect RS485 communications cables to
multiple devices in parallel. If parallel connection is required, a maximum of
four devices can be connected in parallel, or an RS485 repeater can be used for
connection.
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