Do not touch any terminal while the PLC's power is on.
Doing so may cause electric shock or malfunctions.
• Before cleaning or retightening terminals cut off all phases of the power supply externally.
Failure to do so may cause electric shock.
• Make sure to connect the battery for memory backup correctly.
Do not charge, disassemble, heat, short-circuit, or expose the battery to fire.
Doing so may rupture or ignite it.
• Before modifying or disrupting the program in operation or running the PLC, carefully read through
this manual and the associated manuals and ensure the safety of the operation.
An operation error may damage the machinery or cause accidents.
•The FX3UC-32MT-LT has a built-in power supply. When connecting the power supply adapter or
dedicated power supply for CC-Link/LT, connect the built-in master to the LINK connector in the
power supply adapter or dedicated power supply.
Connection to the LINK/POWER connector may cause failures.
104
129
135
144
145
146
148
167
176
177
182
185
187
213
222
223
225
226
248
278
Correct
connection
LINK
connector
LINK/
POWER
connector
Wrong
connection
LINK
connector
LINK/
POWER
connector
Power adapter or Dedicated
Power Supply
Power adapter or Dedicated
Power Supply