Wiring Procedure - Mitsubishi FX3U-USB-BD User Manual

FX Series PLC User's Manual - Data Communication Edition
Inverter Communication
4.1

Wiring Procedure

1
Confirming the connection method
Confirm the inverter connection method.
2
Preparing for wiring
Prepare cables, distributors and terminal resistors required for wiring.
3
Turning OFF the PLC power
Before starting any wiring work, make sure that the PLC power is OFF.
4
Connecting the power supply (FX
Connect the power supply to the 24V DC power terminal.
5
Wiring communication equipment
Connect communication equipment with communication port of inverters (PU port, built-in terminal
for RS-485, FR-A5NR, FR-7TR).
6
Connecting terminal resistors
Connect terminal resistors to the communication equipment of the PLC and the RDA-RDB signal
terminal in the last inverter.
7
Wiring a shielding wire (Class-D grounding)
When using a twisted pair cable, wire a shielding wire.
E-18
→ For connection cables, refer to Section 4.3.
→ For distributors, refer to Section 4.4.
→ For terminal resistors, refer to Section 4.5.
-485ADP only)
0N
4.1 Wiring Procedure
→ For details, refer to Section 4.2.
→ For details, refer to Section 4.8.
→ For details, refer to Section 4.5.
→ For details, refer to Section 4.6.
4 Wiring