Cable Connecting Procedures; Input/Output Terminal Block (Power Supply And Input/Output Wiring) - Mitsubishi FX3U SERIES User Manual

FX Series Programmable Controllers
3U
User's Manual - Hardware Edition
9.2

Cable Connecting Procedures

For cable connection, a terminal block or a connector is used. The cable connecting procedures are
explained below.
9.2.1

Input/output terminal block (power supply and input/output wiring)

WIRING PRECAUTIONS
• Cut off all phases of the power source externally before installation or wiring work in order to avoid electric shock
or damage of product.
• Make sure to attach the terminal cover offered as an accessory to the product before turning on the power or
starting the operation after installation or wiring work.
Failure to do so may cause electric shock.
WIRING PRECAUTIONS
• Perform wiring properly to the FX
accordance with the following precautions.
Failure to do so may cause electric shock, short-circuit, wire breakage, or damages 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 to 0.8 N
• Properly perform wiring to the FX Series terminal blocks following the precautions below in order to prevent
electrical shock, short-circuit, breakage of wire, 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 to 0.8 N
For the main unit, FX
special function units/blocks, an M3 or M3.5 screw terminal block is used.
1. Applicable products
Product type
Main unit
Input/output powered extension unit
Input/output extension block
Extension power supply unit
Special function unit/block
FX Series terminal block
Power supply unit
2. Terminal block screw size
The size of the terminal screws for each product is shown below. For the solderless terminals, refer to the
following page.
Main unit
FX Series special function block
3U
FX Series input/output powered extension units
2N
FX Series input/output extension blocks
2N
FX Series special function unit/block
2N
FX Series terminal block
*1. M3.5 screws may be used for terminals.
For details, refer to the manual for each special extension device.
150
/FX
0N 2N
Series input/output powered extension units/blocks and FX
2N
All models of FX
All models of FX
All models of FX
(except FX
FX -1PSU-5V
3U
Refer to the manual for each special function unit/block.
All models
FX -20PSU
2N
Product
*1
9 Preparation for Wiring and Power Supply Wiring Procedures
/FX Series extension equipment of the terminal block type in
3U
m.
•
• m.
Model name
Series main units
3U
Series input/output powered extension units
2N
Series input/output extension blocks
2N
-16EX-C, FX -16EXL-C and FX
2N 2N
Terminal screw
M3
M3.5
9.2 Cable Connecting Procedures
/FX
0N 2N
-16EYT-C)
2N
Tightening torque
0.5 to 0.8N•m
/FX Series
3U