YAMAZAKI MAZAK VORTEX i Series User Manual

5 SUPPLEMENT
5-50
11. G-code (Group13)
A. Geometry compensation
1. Command
Programming format
G61.1 Rr
Cancellation
G64
Function
The geometry compensation function (G61.1) is provided to reduce conventional geometry
errors caused by delayed follow-up of smoothing circuits and servo systems.
The geometry compensation function is composed of the following five functions.
1. Pre-interpolation acceleration/deceleration
2. Feedforward control
3. Precise vector compensation
4. Optimum feed control (Optimum deceleration at corners, Optimum acceleration control)
5. Feed clamping for circular interpolation
In circular cutting, geometry errors from smoothing circuit can be reduced by
pre-interpolation acceleration/deceleration and those from delayed follow-up of servo
system can be reduced by feedforward control.
Code value
Description
Unit
Setting range
Omit
r
Tolerance (of chord error)
0.0001 mm
0.00001 in
0.0001 to 99.9999 (mm)
0.00001 to 9.99999 (in)
(Note)
Note: The function of specifying the tolerance (of chord error) is available, on condition that it
is enabled by a parameter setting as shown below:
Parameter
Description
F157 bit1
0: Function of specifying the tolerance (of chord error) is disabled,
1: Function of specifying the tolerance (of chord error) is enabled.
2. Notes
 The geometry compensation function is suspended during execution of the following
operations.
Rapid traverse of non-interpolation type (according to bit 6 of parameter F91),
Synchronous tapping, Measurement (skipping), Constant surface speed control,
Threading.
B. Modal spline interpolation
1. Command
Programming format
G61.2 Rr
Cancellation
G64
Function
The modal preparatory function G61.2 is used to select a geometry compensation mode
which is in general equivalent to G61.1 with a particular difference in that all blocks of G1
(linear interpolation) are processed as those of fine spline interpolation. This function is
especially useful in applying fine spline interpolation to a program with microsegment blocks
created by a CAM.
Code value
Description
Unit
Setting range
Omit
r
Tolerance (of chord error)
0.0001 mm
0.00001 in
0.0001 to 99.9999 (mm)
0.00001 to 9.99999 (in)
(Note)
Note: The function of specifying the tolerance (of chord error) is available, on condition that it
is enabled by a parameter setting as shown below:
Parameter
Description
F157 bit1
0: Function of specifying the tolerance (of chord error) is disabled,
1: Function of specifying the tolerance (of chord error) is enabled.
Serial No. 294060
Copyright (c) 2013 YAMAZAKI MAZAK CORPORATION. All rights reserved.
Serial No. 294060

YAMAZAKI MAZAK VORTEX i Series Specifications

General

Brand	YAMAZAKI MAZAK
Model	VORTEX i Series
Category	Computer Hardware
Language	English