Mitsubishi Electric MELSEC-L LD75D, User Manual

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360
(2) 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.

: Setting always required,

: Set according to requirements,

: Setting restrictions exist,

: Setting not
required
*1
*1 This is an irrelevant item, so the set value will be ignored. If the value is the default value or within the setting range,
there is no problem.
*2 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-axis interpolation other than 3-axis helical interpolation or 4-axis interpolation, this item
does not need to be set. For 3-axis helical interpolation, refer to the following for the reference axis and interpolation axis
combinations.

Page 359, Section 9.1.6 (1)
If axes are set in a combination other than the ones mentioned above, the error "Illegal interpolation description
command" (error code: 521) will occur.
Refer to

Page 152, Section 5.3 for information on the setting details.
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
Helical sub, helical right, helical 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] Axis to be interpolated

*2 
[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 for circular sub, circular right, circular
left, helical sub, helical right, and helical left)

(Only for circular sub, circular right, circular
left, helical sub, helical right, and helical left)
[Da.8] Command speed


Only during forward run speed 2, 3, 4 and
reverse run speed 2, 3, 4.
[Da.9] Dwell time
 
[Da.10] M code


Only for helical sub, helical right, and helical
left, set the number of pitch for the linear
interpolation axis.
[Da.27]
M code ON signal
output timing
 
[Da.28]
ABS direction in
degrees
 
[Da.29]
Interpolation speed
designation method
 