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3 Connection of Input/Output Lines and Tightening
3.1 Terminal Board (M3, M3.5)
B - 33
FX
3G
/FX
3U
/FX
3UC
PLC User's Manual - Positioning Control Edition
Built-in Positioning Functions
A
Common Items
B
Built-in
Positioning
Functions
Apx.
Example
Connection
3.1 Terminal Board (M3, M3.5)
A terminal board is used for the FX3U, FX3G Series main unit, FX2N Series input/output extension unit
(excluding some types), and FX
0N Series input/output extension block.
3.1.1 Terminal Screw Size
The terminal screw size of each product is shown in the following table. For details on the crimp-style
terminals, refer to Subsection 3.1.2.
3.1.2 Termination
The size of each crimp-style terminal depends on the size of the terminal screw and the wiring method.
Refer to the following description to select a crimp-style terminal of optimum size.
1. FX3U, FX3G Series main unit,
FX
2N Series input/output powered extension unit, and FX0N Series input/output extension
block
• When one wire is connected to one terminal
• When two wires are connected to one terminal
2. FX Series terminal block
• When one wire is connected to one terminal
Product Terminal screw Tightening torque
FX
3U, FX3G Series main unit, FX2N Series input/output powered
extension unit, FX
2N/FX0N Series input/output extension block
M3
0.5 to 0.8N
•m
FX Series terminal block M3.5
TerminalTerminal
Terminal
screw
Crimp
terminal
6.2mm(0.24")
or less
3.2(0.13")
6.2mm(0.24")
or less
3.2(0.13")
Terminal
screw
Crimp
terminal
Terminal
6.2mm(0.24")
or less
3.2(0.13")
6.3mm(0.25")
or more
6.2mm(0.24")
or less
3.2(0.13")
6.3mm(0.25")
or more
6.8mm(0.27")
or less
3.7(0.15")
TerminalTerminal
Terminal
screw
Crimp
terminal
6.8mm(0.27")
or less
3.7(0.15")