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MELSEC-Q
8. DATA SETTING
HELPFUL OPERATION (1)
When you want to use a smooth arc (curve) on an intersection of two consecutive
linear interpolation controls, you can perform the following operation to insert the
circular interpolation control positioning data between the linear interpolation
controls.
Data No. 2
(2-axis linear
interpolation control)
Data No. 1
(2-axis linear
interpolation
control)
Starting position
Target position
Data No. 3
(2-axis linear interpolation control)
Starting position
Target position
Arc radius
Data No. 2
(Circular interpolation control)
Data No. 1
(2-axis linear interpolation control)
1. Open the positioning data edit window of the reference axis to which sub arc
setting will be made.
2. Click the [Edit]
[Sub arc] menu.
3. Set "Data" and "SubArc Radius" in the SubArc Setting dialog box.
4. Click the " Calculation " button.
5. The positioning data overwrite confirmation dialog box appears. Click the "OK"
button.
<Sub arc setting example>
• Open the positioning data edit window of axis 1 which
is used as the reference axis.
• Click the [Edit]
[Sub arc] menu.
• Set "1" to "Data" and "50" to "SubArc Radius".
• Click "OK" in the positioning data overwrite dialog box.
• The address of data No. 1 is changed and data No. 2
changes to circular interpolation control data.
The original data of data No. 2 is set to data No. 3.
• Since the selected No. and next No. are overwritten by the positioning data
created in sub arc setting, leave the next No. as NOP (empty).
• In either of the following cases, you cannot make sub arc setting.
The control method is other than 2-axis linear interpolation control or fixed-
distance feed 2.
Positioning data setting is in error.