TC-32B Chapter4 Preparation function (Tool offset function)
2004/01/22 4 - 29 eTCOMNCPR4.doc
4
4.1.11 Override function related to tool dia offset
4.1.11.1 Automatic corner override
When the blocks before and after the inner corner satisfy the following conditions,
an automatic override is applied to reduce the load on the tool.
1. Movement is commanded G01, G02 or G03. (Volute/without circular cone interpolation)
2. The offset mode is selected and the offset amount is not zero.
3. The corner is inside and its angle is less than the AUTO.CORNER OVER RIDE ANGLE
set by the parameter 1.
4. The block does not contain G41, G42 and G40.
5. There is no change in the offset direction.
The parameter 1 has the following setting values.
1)AUTO.CORNER OVERRIDE LEN1
: Deceleration stroke at corner end point :Le
2)AUTO.CORNER OVERRIDE LEN1
: Deceleration stroke at corner start point :Ls
3)AUTO.CORNER OVERRIDE RATIO :Reduction ratio (%) :Y
4)AUTO.CORNER OVERRIDE ANGLE :Corner inside reference angle :
θ
An override is applied to the thick lined area between a and b.
Actual feedrate = Commanded feedrate
Deceleration
100
Corner inside reference angle θ
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