9 Preparation for Wiring and Power Supply Wiring
9.2 Cable Connecting Procedures
106
FX3G Series Programmable Controllers
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)
For the main unit, FX2N Series input/output powered extension units/blocks and FX2N/FX3U Series special
function blocks, an M3 or M3.5 screw terminal block is used.
1. Applicable products
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.
*1. M3.5 screws may be used for terminals.
For details, refer to the manual for each special extension device.
Product type Model name
Main unit All models of FX3G Series main units
Input/output powered extension unit All models of FX2N Series input/output powered extension units
Input/output extension block
All models of FX2N Series input/output extension blocks
(except FX2N-16EX-C, FX2N-16EXL-C and FX2N-16EYT-C)
Extension power supply unit FX3U-1PSU-5V
Special function block Refer to the manual for each special function block
FX Series terminal block All models
Power supply unit FX2N-20PSU
Product Terminal screw Tightening torque
Main unit
FX3U Series special function block
FX2N Series input/output powered extension units
FX2N Series input/output extension blocks
FX2N Series special function block
*1
M3
0.5 to 0.8N•m
FX Series terminal block M3.5
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