Mitsubishi Electric FX3U SERIES - Terminal Board (M3, M3.5; Terminal Block Screw Size and Tightening Torque; Termination

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FX 3S /FX 3G /FX 3GC /FX 3U /FX 3UC PLC User's Manual - Positioning Control Edition
Built-in Positioning Functions
A
Common Items
B
Built-in Positioning Functions
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Example Connection
3 Connection of Input/Output Lines and Tightening Torques
3.1 Terminal Board (M3, M3.5)
3.1 Terminal Board (M3, M3.5)
A terminal board is used for the FX3S/FX3G/FX3U Series main unit, FX2N Series input/output extension unit
(excluding some types), and FX
0N Series input/output extension block.
3.1.1 Terminal block screw size and tightening torque
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 solderless terminal size depends on the terminal screw size and wiring method.
- Use solderless terminals of the following size.
- Tighten the terminals to a torque of 0.5 to 0.8 N
m.
Do not tighten terminal screws with a torque outside the above-mentioned range. Failure to do so may
cause equipment failures of malfunctions.
1. In the case of M3 terminal screw
• When one wire is connected to one terminal
• When two wires are connected to one terminal
2. In the case of M3.5 terminal screw
• When one wire is connected to one terminal
Product Terminal screw Tightening torque
FX
3S/FX3G/FX3U Series main unit, FX2N Series input/output powered
extension unit, FX
0N/FX2N Series input/output extension block
M3
0.5 to 0.8 N
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")
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