126
FX3UC Series Programmable Controllers
User’s Manual - Hardware Edition
3 Generic Specifications/Installation Work
3.11 Connection to Input/Output Connector
3.11.3 Input/Output Terminal Blocks [FX0N/FX2N/FX3U Extension blocks]
1. Terminal block screw size
The table below shows the screw size of each terminal block. For crimp terminals, refer to "2. Wire end
treatment".
2. Wire end treatment
The solderless terminal size depends on the terminal screw size and wiring method.
Use solderless terminals of the following size.
In case of the FX
0N/FX2N/FX3U extension blocks (M3 screw)
• When one wire is connected to one terminal
• When two wires are connected to one terminal
WIRING PRECAUTIONS
• Make sure to cut off all phases of the power supply externally before attempting installation or wiring work.
Failure to do so may cause electric shock or damage to the product.
• Make sure to attach the terminal cover, offered as an accessory, before turning on the power or initiating operation
after installation or wiring work.
Failure to do so may cause electric shock.
• Make sure to properly wire the FX
0N/FX2N/FX3U Series extension equipment in accordance with the following
precautions.
Failure to do so may cause electric shock, a short-circuit, wire breakage, or damage to the product.
- The disposal size of the cable end should follow the dimensions described in this manual.
- Tightening torque should be between 0.5 and 0.8 N
•
m.
• Make sure to properly wire to the FX Series terminal blocks in accordance with the following precautions.
Failure to do so may cause electric shock, a short-circuit, wire breakage, or damage to the product.
- The disposal size of the cable end should follow the dimensions described in this manual.
- Tightening torque should be between 0.5 and 0.8 N
•
m.
Product Terminal screw
Tightening
torque
FX
0N extension blocks, FX2N extension blocks (Except FX2N-20PSU,
FX
2N-8AD, FX2N-16CCL-M signal terminal), FX3U extension blocks
M3
0.5 to 0.8N•m
FX Series terminal block, FX
2N-20PSU, FX2N-8AD,
FX
2N-16CCL-M signal terminal
M3.5
TerminalTerminal
Terminal
screw
Crimp
terminal
6.2mm(0.24")
or less
φ
3.2(0.13")
6.2mm(0.24")
or less
φ
3.2(0.13")
Terminal
screw
Crimp
terminal
Terminal
6.2mm(0.24")
or less
φ
3.2(0.13")
6.3mm(0.25")
or more
6.2mm(0.24")
or less
φ
3.2(0.13")
6.3mm(0.25")
or more