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Chapter 9 Major Positioning Control
Setting the positioning data during interpolation control
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.
Axis
Setting item
Reference axis setting item Interpolation axis setting item
Same positioning data Nos
[Da.1] Operation pattern –
[Da.2] Control system
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
–
[Da.3] Acceleration time No. –
[Da.4] Deceleration time No. –
[Da.5]
A
xis to be interpolated
QD77MS2 QD77MS4
1
–
[Da.6]
Positioning address/
movement amount
(Forward run speed 2, 3, and 4.
Reverse run speed 2, 3, and 4 not
required.)
(Forward run speed 2, 3, and 4.
Reverse run speed 2, 3, and 4 not
required.)
[Da.7] Arc address
(Only during circular sub, circular
right, and circular left).
(Only during circular sub, circular
right, and circular left).
[Da.8] Command speed
(Only during forward run speed 2,
3, 4 and reverse run speed
2, 3, 4).
[Da.9]
Dwell time/JUMP
destination
positioning data No.
–
[Da.10]
M code/Condition
data No./Number of
LOOP to LEND
repetitions
–
[Da.20]
A
xis to be interpolated
No.1
QD77MS16
2
–
[Da.21]
A
xis to be interpolated
No.2
QD77MS16
2
–
[Da.22]
A
xis to be interpolated
No.3
QD77MS16
2
–
: Setting always required
: Set according to requirements (Set to "–" when not used.)
: Setting restrictions exist
– : Setting not required (The setting value is invalid. Use the initial value or a value within the setting
range.)
1: For 2-axis interpolation, the partner axis is set. If the self-axis is set, the error "Illegal interpolation
description command" (error code: 521) will occur. For 3- and 4-axis interpolation, the axis setting is
not required.
2: The axis No. is set to axis to be interpolated No.1 for 2-axis linear interpolation, to axis to be
interpolated No.1 and No.2 for 3-axis linear interpolation, and to axis to be interpolated No.1 to No.3
for 4-axis linear interpolation.
If the self-axis is set, an error "Illegal interpolation description command (error code: 521)" will occur.
The axes that are not used are not required.
(Note): Refer to Section 5.3 "List of positioning data" for information on the setting details.