Mitsubishi Electric FR-CC2-P Instruction Manual page 55

Communication connectors and terminals
RS-485 terminal wiring method
• Operating two converter units in parallel
• Operating three converter units in parallel
 Set the terminating resistor switch to 100 .
NOTE
• Refer to the diagrams above to connect the converter units with RS-485 cables. Wind the wires together around each ferrite
core (accessory of the inverter) once (two turns). Install each ferrite core on within 10 cm of the converter unit.
• For branching, connect the wires as shown below.
To the earth (ground) terminal of the converter unit
To the reception terminals of the master converter unit
To the transmission terminals of the master converter unit
54
INSTALLATION AND WIRING
GND GND
Master
Ferrite cores
GND GND
Master
Ferrite cores
∗1
GND
Slave
Ferrite cores
GND GND
Slave 1
Slave 1
VCC TXD RXD
∗1
GND
Slave 2
Slave 2
VCC TXD RXD