Huawei SmartACU2000D Quick Manual page 26

•
Connect the L1-1, L2-1, and L3-1
wires from the FU01 switch
respectively to ports A, B, and C on
the transformer station busbar 1
over a three-phase power switch.
•
Connect the L1-2, L2-2, and L3-2
wires from the FU02 switch
respectively to ports A, B, and C on
the transformer station busbar 2
over a three-phase power switch.
•
Ensure that the L1, L2, and L3
wires are connected in correct
phase sequence.
2. Connect the L1, L2, and
L3 wires to the three-
phase input switch.
3. Bind the cable.
6.8 Connecting the Peripheral RS485 Communications Cable
Connect peripheral RS485 communications cables to the JX01 terminal block. All RS485
communications cables are connected in the same way. This section describes how to connect two
RS485 communications cables.
No. Port on the JX01 Terminal Block
1 RS485-1 (+)
2 RS485-1 (–)
3 RS485-2 (+)
4 RS485-2 (–)
•
For the smart array controller that supports the access of two MBUS routes, do not connect a
peripheral RS485 communications cable to the RS485-3 port (ports 5 and 6 on the JX01 terminal
block) because the MBUS CCO module communications cable has been connected to this port.
•
JX01 ports 7, 8, 9, 10, 11, and 12 can be connected to the RS485 cable only after the
SmartModule is installed.
Transformer station
Three-phase
power switch 1
Transforme
r station
busbar 1
A/B/C
Three-phase
power switch 2
Transforme
r station
busbar 2
A/B/C
Definition
RS485A, RS485 differential signal+
RS485B, RS485 differential signal–
RS485A, RS485 differential signal+
RS485B, RS485 differential signal–
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