3 Comparison of Specifications
3.2 Comparison of Operation Modes
A - 16
FX
3G
/FX
3U
/FX
3UC
 PLC User's Manual - Positioning Control Edition
Common Items
3.2 Comparison of Operation Modes
Positioning operation
pattern
Description
Built-in positioning function
FX
3G
/FX
3U
/FX
3UC
 PLC 
(main unit)
(Transistor output)
FX3U-2HSY-ADP(FX3U)
FX2N-1PG(-E)
FX2N-10PG
FX2N-10GM
FX2N-20GM
FX3U-20SSC-H
Jogging operation
If the forward/reverse rota-
tion command is input, the 
motor will rotate in the for-
ward/reverse direction.
3
*1
3333 3
Mechanical zero return
The mechanical zero return 
start command will start the 
zero return operation at the 
specified speed. At the com-
pletion of the mechanical 
zero return, CLEAR signal 
will be output.
The DOG search function 
applies for each unit.
333333
Electric zero return
The SETR instruction will 
return the workpiece to the 
set electric origin at the maxi-
mum speed set the parame-
ters.
−−−33 −
1-speed positioning
The start command will start 
the operation at the speci-
fied operation speed, and the 
operation will stop at the tar-
get position.
3
*2
3333 3
2-speed positioning
The start command will 
transfer the workpiece to the 
distance (1) at operation 
speed (1), and then to the 
distance (2) at operation 
speed (2).
− 33
3
*3
3
*4
3
Multi-speed operation
The workpiece will change 
speed with the specified 
transfer distance.
The figure shows an example 
a of 3-speed operation.
−−
3
*5
3
*1. Drive to Increment instruction is used.
*2. Drive to Increment/Absolute instructions are used.
*3. The pulse train function of the linear interpolation instruction will perform this operation.
*4. The pulse train function of the linear interpolation instruction will perform this operation.
Operation of only one axis is possible.
*5. The table operation (continuous operation) function will perform this operation.
Speed
Jogging speed
Start
JOG
command
Zero return
speed
Creep
speed
Speed
CLEAR
signal
Origin DOG input: ON Start
Speed
Electric origin
Start
Maximum speed
Speed
Start
Transfer distance
Operation speed
Target
position
Speed
Start
Operation
speed(1)
Operation
speed(2)
Transfer
distance(1)
Transfer
distance(2)
Start
Speed
P1
P2 P3
V1
V2
V3