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Interpolation control
Meaning of interpolation control
In "2-axis linear interpolation control", "3-axis linear interpolation control", "4-axis linear interpolation control", "2-axis fixed-
feed control", "3-axis fixed-feed control", "4-axis fixed-feed control", "2-axis speed control", "3-axis speed control", "4-axis
speed control", and "2-axis circular interpolation control", control is carried out so that linear and arc paths are drawn using a
motor set in two to four axis directions. This kind of control is called "interpolation control".
In interpolation control, the axis in which the control method is set is defined as the "reference axis", and the other axis is
defined as the "interpolation axis".
The Simple Motion module controls the "reference axis" following the positioning data set in the "reference axis", and controls
the "interpolation axis" corresponding to the reference axis control so that a linear or arc path is drawn.
The following table shows the reference axis and interpolation axis combinations.
Interpolation of "[Da.2]
Control method"
2-axis linear interpolation control
2-axis fixed-feed control
2-axis circular interpolation control
2-axis speed control
3-axis linear interpolation control
3-axis fixed-feed control
3-axis speed control
4-axis linear interpolation control
4-axis fixed-feed control
4-axis speed control
Setting positioning data
When carrying out interpolation control, the same positioning data Nos. are set for the "reference axis" and the "interpolation
axis". The following table shows the "positioning data" setting items for the reference axis and interpolation axis.
: Setting always required, : Set according to requirements (Set to "" when not used.), : Setting restrictions exist
: Setting not required (Use the initial value or a value within the setting range.)
Setting item
Same
[Da.1]
Operation pattern
positioning
[Da.2]
Control method
data Nos
[Da.3]
Acceleration time No.
[Da.4]
Deceleration time No.
[Da.6]
Positioning address/movement amount
[Da.7]
Arc address
[Da.8]
Command speed
[Da.9]
Dwell time/JUMP destination positioning
data No.
[Da.10]
M code/Condition data No./Number of
LOOP to LEND repetitions
[Da.20]
Axis to be interpolated No.1
[Da.21]
Axis to be interpolated No.2
[Da.22]
Axis to be interpolated No.3
3 MAJOR POSITIONING CONTROL
64
3.1 Outline of Major Positioning Controls
Axis definition
Reference axis
4-axis module: Any of axes 1 to 4
8-axis module: Any of axes 1 to 8
Reference axis setting item
Linear 2, 3, 4
Fixed-feed 2, 3, 4
Circular sub, Circular right, Circular left
Forward run speed 2, 3, 4
Reverse run speed 2, 3, 4
(Forward run speed 2, 3, and 4. Reverse
run speed 2, 3, and 4 not required.)
(Only during circular sub, circular right,
and circular left).
Interpolation axis
"Axis to be interpolated No.1" set in reference axis
"Axis to be interpolated No.1" and "Axis to be interpolated No.2" set in reference
axis
"Axis to be interpolated No.1", "Axis to be interpolated No.2" and "Axis to be
interpolated No.3" set in reference axis
*1
*1
*1
Interpolation axis setting item
(Forward run speed 2, 3, and 4. Reverse
run speed 2, 3, and 4 not required.)
(Only during circular sub, circular right,
and circular left).
(Only during forward run speed 2, 3, 4 and
reverse run speed 2, 3, 4).
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Troubleshooting
