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2 Features and Part Names
2.2 Names and Functions of Parts
22
FX3S Series Programmable Controllers
User's Manual - Hardware Edition
When the top covers are open
When the terminal block covers are open
[1] Optional equipment connector These holes are designed to secure the expansion board, display module and memory
cassette with screws.
[2] RUN/STOP switch To stop writing (batch) of the sequence program or operation, set the switch to STOP (slide
it downward).
To start operation (run the machine), set it to RUN (slide it upward).
[3] Variable analog potentiometers
(except FX3S-30M/E-2AD)
Two variable analog potentiometers are built in.
Upper side: VR1, Lower side: VR2
[4] Analog input terminal block
(only FX3S-30M/E-2AD)
Two analog inputs are built in.
These terminals are for wiring the analog inputs.
[5] Peripheral device connecting
connector (USB)
Connect a programming tool (PC) to program a sequence.
For details on applicable peripheral devices, refer to Chapter 5.
[6] Peripheral device connecting
connector (RS-422)
Connect a programming tool to program a sequence.
For details on applicable peripheral devices, refer to Chapter 5.
[7] Optional equipment connecting
screw holes (2 places)
These holes are designed to secure the expansion board and memory cassette with screws.
[1] Power supply terminals Connect the power supply to the main unit.
[2] Input (X) terminals Wire switches and sensors to the terminals.
[3] Output (Y) terminals Wire loads (contactors, solenoid valves, etc.) to be driven to the terminals.
[4] Terminal cover A protective terminal cover (refer to the following drawing) is fitted to the lower stage of each
terminal block.
The cover prevents fingers from touching terminals, thereby improving safety.
[5] Service power supply terminals
(only AC power type)
Wire sensors or other external equipment to these terminals when the service power supply
(24 V DC) is used for such equipment.
[1]
[7]
[2]
[3]
[4]
[5]
[6]
[In the case of FX3S-30M□/E□-2AD]
[2][1]
[3]
[5] [4]