Conversion Of The Projects; Replacement Of The Plc - Mitsubishi MELSEC FX3U Series Handbook

■Cable sizes for European type terminal block
Suitable wiring and tightening torque are described below.
Built-in RS-485 communication
terminal block
FX3U-485ADP
FX5-485ADP
FX5-4AD-ADP, FX5-4DA-ADP, FX5-
4AD-PT-ADP, FX5-4AD-TC-ADP
3.4

Conversion of the Projects

For the conversion method of the project, refer to Page 32 Conversion of the Projects.
3.5

Replacement of the PLC

The main points to consider during replacement of the CPU module and extension devices are explained below.
For details of each item, check the reference pages in this document, and related manuals such as the PLC Hardware Manual
and Programming Manual.
Device Item
classification
CPU module Connector connection of the input/
output wiring
Connector connection of the 24 V DC
power cable
Other extension Wiring to each module
modules
Verifying operation of the Operation and test of the PLC program
equipment
Wire size for Wire size for
one wire two wires
AWG22 to AWG22
AWG20
Operation content and points of attention
The input/output connector and 24 V DC connector types and
signal names are the same for FX3UC and FX5UC.
Reconnect the cable removed from FX3UC to FX5UC.
Perform rewiring for the connection part of the terminal block
type.
The input/output connector and 24 V DC connector and signal
names are the same for FX2NC and FX5UC. Reconnect the
cable removed from FX2NC to FX5UC.
Perform rewiring for the connection part of the terminal block
type.
Operate the converted PLC program and hardware devices,
and check and adjust the device function and operation
timing.
Be aware of the precautions described on the reference page
for replacing the project, and check that the devices operate
as they are designed.
Wire ferrule with Tightening
insulation sleeve torque
(wire size)
AWG22 to AWG20 0.22 to 0.25
N⋅m
0.20 N⋅m
3 Replacement from FX3UC to FX5UC
3.4 Conversion of the Projects
Stripping dimensions of
electric wire ends
9 mm
Reference page
Page 26
Page 32
31
3