Cable Connecting Procedures; Terminal Block [Main Unit] - Mitsubishi Electric MELSEQ FX3S Series User Manual

FX Series Programmable Controllers
3S
User's Manual - Hardware Edition
8.2

Cable Connecting Procedures

The cable connecting procedures are explained below.
8.2.1

Terminal block [Main unit]

The terminal block of main unit is the M3 screw.
1. Terminal block screw size and tightening torque
The terminal block screw and tightening torque is shown below.
Product
Main unit
2. Wire end treatment
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 or malfunctions.
• When one wire is connected to one terminal
6.2 mm (0.24˝)
or less
6.2 mm (0.24˝)
or less
<Reference>
Terminal manufacturer
J.S.T. Mfg. Co., Ltd.
• When two wires are connected to one terminal
6.2 mm (0.24˝)
or less
6.2 mm (0.24˝)
or less
<Reference>
Terminal manufacturer
J.S.T. Mfg. Co., Ltd.
*1. To adapt the LVD directive (EN61010-2-201:2013) of the EC directive, avoid the wiring with two wires
to the built-in terminal, and take an appropriate action such as adding an external terminal.
For the time of compliance with the LVD directive (EN61010-2-201:2013), refer to Requirement for
Compliance with LVD directive.
8 Preparation for Wiring and Power Supply Wiring Procedures
→ For the terminal block of a built-in analog input, refer to Chapter 11.
Terminal screw
M3
φ3.2 (0.13˝)
φ3.2 (0.13˝)
Terminal
Type No. Applicable cable
FV1.25-B3A AWG22 to 16
FV2-MS3 AWG16 to 14
*1
φ3.2 (0.13˝)
6.3 mm (0.25˝)
or more
φ3.2 (0.13˝)
Terminal
6.3 mm (0.25˝)
or more
Type No. Applicable cable
FV1.25-B3A AWG22 to 16
8.2 Cable Connecting Procedures
Tightening torque
0.5 to 0.8 N•m
Terminal Crimp
screw terminal
Certification
UL Listed
Terminal Crimp
screw terminal
Certification
UL Listed
Pressure bonding tool
YA-1 (J.S.T. Mfg. Co., Ltd.)
Pressure bonding tool
YA-1 (J.S.T. Mfg. Co., Ltd.)
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