Termination Resistor Setting - Mitsubishi Electric FX5 User Manual
Melsec iq-f series
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Also See for FX5:
- Programming manual (1112 pages) ,
- User manual (958 pages) ,
- Reference manual (44 pages)
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Tool
For tightening the terminal, use a commercially available small screwdriver with
straight tip that is not widened toward the end as shown below.
Precautions
If the diameter of the screwdriver tip is too small, the required tightening torque
cannot be achieved. To achieve the appropriate tightening torque shown in the
previous page, use the following screwdriver or its equivalent (grip diameter:
approximately 25 mm (0.98")).
<Reference>
Manufacturer
Phoenix Contact
Termination resistor setting
Make sure to provide a termination resistor at both ends of the wire.
The built-in RS-485 port, FX5-485-BD and FX5-485ADP have a built-in termination resistor.
Set the termination resistor selector switch as below.
Wiring
Two-pair wiring
One-pair wiring
FX5U CPU module built-in RS-485 port
FX5-485-BD
Termination
resistor selector
switch
Termination
resistor
selector switch
0.4 mm
(0.01")
Model name
SZS 0.42.5
Termination resistor selector switch
330
110
FX5UC CPU module built-in RS-485 port
FX5-485ADP
5 NON-PROTOCOL COMMUNICATION
With straight tip
2.5 mm
(0.09")
Termination
resistor selector
switch
Termination
resistor selector
switch
133
5.5 Wiring
5
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Troubleshooting
