13. Program Support Functions
13.15 High-accuracy Control ; G61.1, G08
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13.15 High-accuracy Control ; G61.1, G08
Function and purpose
This function aims to improve the error caused by the accuracy of the control system during
machine machining. The parameter method and G code command method, which turn initial
high-accuracy ON, are used to enter the high-accuracy control mode.
Trouble such as the following occurred when using normal control:
(1) Corner rounding occurred at linear and linear-connected corners because the following
command movement started before the previous command finished. (Refer to Fig. 1)
(2) When cutting circle commands, an error occurred further inside the commanded path, and the
resulting cutting path was smaller than the commanded path. (Refer to Fig. 2)
Commanded path
Commanded path
Actual path
Actual path
Fig. 1 Rounding at linear corners
Fig. 2 Radius reduction error
in circle commands
This function uses the following fix functions to minimize the increase in machining time while
reducing the shape error.
(1) Pre-interpolation
acceleration/deceleration (linear acceleration/deceleration)
(2) Optimum speed control
(3) Vector accuracy interpolation
(4) Feed forward
(5) Arc entrance/exit speed control
(6) S-pattern filter control