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3 Comparison of Specifications
3.1 Comparison of Performance Specifications
A - 14
FX
3G
/FX
3U
/FX
3UC
PLC User's Manual - Positioning Control Edition
Common Items
3.1.3 Positioning Special Function Block [FX3U-20SSC-H]
*1. Do not exceed the maximum rotation speed of the servo motor.
*2. The position data magnification sets the 1, 10,10
2
or 10
3
in parameters.
*3. The positioning range can be set in the range from -2,147,483,648 to +2,147,483,647 pulses.
*4. The set data (table information) of the table operation can be set up with FX Configurator-FP Setting/
monitor tool.
*5. Up to 300 points (table) can be set for the table operation of the X-/Y-/XY-axis.
Model FX3U-20SSC-H
Number of control
axes
2 independent/simultaneous axes
Interpolation 2-axes linear interpolation, 2-axes circular interpolation
Pulse output
system
SSCNET III
Pulse output
method
Maximum
frequency
*1
50,000,000Hz
Acceleration/
deceleration type
Automatic trapezoidal acceleration/deceleration,
approximate S-pattern acceleration/deceleration
Unit
pulse, µm, 10
-4
inch, mdeg
Positioning range
-2,147,483,648 to +2,147,483,647 pulse
-2,147,483,648 to +2,147,483,647 [× (Position data magnification
*2
) µm]
*3
-2,147,483,648 to +2,147,483,647 [× (Position data magnification
*2
) ×10
-4
inch]
*3
-2,147,483,648 to +2,147,483,647 [× (Position data magnification
*2
) mdeg]
*3
Program language
Sequence program (FROM/TO instruction, BFM direct designation)
*4
Position data
1 point (set in sequence program)
*5
Connection of
manual pulse
generator
Connectable (Differential line driver)
Detection of
absolute position
(Reads out the
current value of
ABS.)
Set in parameters
Others
• PLC input/output: 8 points occupied
(Points can be either input or output points.)
• During positioning operation, the operation speed and/or target address can be changed.