HEIDENHAIN MANUALPLUS 620 - Page 1138

1138 HEIDENHAIN Technical Manual MANUALplus 620
Speed – Example values of a medium-sized machine:
Recommended settings guidelines for "accuracy":
Basic settings:
 Use the HSC filter whenever possible (with limit frequencies greater than 30
Hz)
MP_shape = HSC
 Define HSC mode (Cycle 32):
MP_hscMode = Smoothing
 Use lower jerk values than in the default setting
CfgLaAxis: MP_axTransJerk
CfgLaPath: MP_maxPathJerk
Optional:
CfgLaAxis: MP_axPathJerk
(Software option 2 is required!)
 Use limit frequencies above 30 Hz
Perform an adjustment:
 Goal:
The programmed contour tolerance (Cycle 32) must be maintained while the
following error is kept at a minimum
 Use suitable NC program.
The TNCopt software from HEIDENHAIN features the "Contour-Single.h"
NC program within the "contour measurement" function. The advantage is
that the speed and the contour deviations can be seen directly.
Machine parameters Recommended
values
Remark
axPathJerk 75 Software option 2 is
required!
maxPathJerk 75 Without software option 2
maxPathJerk 100 With software option 2
defaultPosition/shape Triangle
defaultPosition/frequency 50
pathTolerance 0.05
axTransJerk 200
curveJerkFactor 10
Note
Possibility of further adjustment:
Ideally, circular paths should be checked with a KGM grid encoder from
HEIDENHAIN. However, in many cases the circular interpolation test with
the integrated oscilloscope or TNCopt suffices.
Note
To reduce deformations of the machine elements under increased
centrifugal forces (radial acceleration) the acceleration values set in
MP_maxAcceleration may have to be reduced to 1.5 m/s
2
.