Chapter 9 High Accuracy Mode A TC-32B
2004/1/22 9 - 10 eT32BNCPR.9.doc
9
9.4.3 Automatic curve approximation deceleration
This function automatically decelerates the curve approximation block feed rate according to the
curve approximation deceleration override setting so that the shape accuracy for the curve
approximation block (curve composed of minute blocks) specified by the NC program is
maintained.
The setting range of the curve approximation deceleration override is 0%, or 10% to 1000%
(100% is the default).
The lower the setting is, the more effective the deceleration function, minimizing error and
improving shape accuracy.
When 0% is entered, the automatic curve approximation deceleration function is turned off.
The graph below shows the accuracy relative to the curve approximation deceleration override
setting.
How to read graph:
An error for curve approximation block when 100% is set for curve approximation deceleration
override is "1".
[1] Curve approximation deceleration override (100% ~ 1000%)
[2] Curve approximation deceleration override (10% ~ 100%)
Curve approximation deceleration override and
accuracy
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
100 200 300 400 500 600 700 800 900 1000
Curve approximation deceleration override (%)
Curve approximation deceleration override and
accuracy
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0 1020 3040 5060708090100
Curve approximation deceleration override
(%)
Good
ccurac
Poor
Good
ccurac
Poor