■Cable structural drawing (reference)
Example of three-pair cable structural drawing
■Point of contact
For details on cables such as specifications, contact each cable manufacturer.
10BASE-T cable
Available 10BASE-T cables for PC LAN wiring can be used.
■Selection procedure when purchasing
Cable type: 10BASE-T cable (Category 3 or higher)
Connection specifications: Straight type
Connector: RJ45 connector
■Precautions for using cables
Pay attention to the following points when purchasing cables.
• 5 V DC is output to the PU connector of the inverters for supplying power to the PU. Please cut pins No. 2 and 8 of
commercial cables to prevent wiring to pins No. 2 and 8. ([BMJ-8-28N] distributor is recommended.)
Connecting cables
The table below shows applicable cables and tightening torques.
FX5U CPU module built-in RS-485 port
FX5UC CPU module built-in RS-485 port
FX5-485-BD
FX5-485ADP
Precautions
Do not tighten terminal screws with torque beyond the specified range. Otherwise it may cause equipment failure or
malfunction.
■Wire end treatment
With regard to the cable end treatment, use a stranded cable or solid cable as is, or use a wire ferrule with insulating sleeve.
When using a stranded cable or solid cable as is
• Twist the end of stranded wire and make sure that there are no loose wires.
• Please do not solder plate the ends of the cable.
Dimensions of the cable end
FX5U CPU module built-in RS-485 port
5 mm
(0.2")
Number of wires
Wire size
connected per
Solid wire,
terminal
Stranded wire
One wire
0.2 to 0.5 mm
(AWG24 to 20)
2
Two wires
0.2 mm
(AWG24)
One wire
0.3 to 0.5 mm
(AWG22 to 20)
2
Two wires
0.3 mm
(AWG22)
FX5UC CPU module built-in RS-485 port, FX5-485-BD,
FX5-485ADP
9 mm
(0.36")
Wire ferrule with
insulation sleeve
2
2
0.2 to 0.5 mm
(AWG24 to 20)
2
2
0.3 to 0.5 mm
(AWG22 to 20)
4 INVERTER COMMUNICATION
4
Tightening torque
0.22 to 0.25 Nm
81
4.5 Wiring