Lenze ETC Motion Control - Manual (Page 151)

CNC programming
G functions
G functions individual descriptions
3
3.2
3.2.2
l
151 EDSTCXN EN 2.0
3.2.2.62 G158/G159 Intermittent operation "on"/"off"
The preparatory function G158 switches the intermittent operation on,
during which the interpolation of the programmed profile is executed in
strokes.
G158 I J K
G159
K Speed profile of every individual interpolation stroke
0: without intermit
1: discontinuous (default)
2: linear
3: sinusoidal
4: sinusoidal acceleration sine squared braking
5: sine squared
I Feed duration in percent of the step length (default = 50)
J Phase displacement in percent
0: feed on step end (default)
100: feed on step start
During intermittent operation, all interpolation types on the profile are
executed in strokes. The distance covered with every stroke on the path
corresponds to the step length L for G1/G2/G3. With the combination of
G158 and G33, it is possible with a sewing−machine (see sewing technology)
to carry out the material transport in a limited angle range of a sewing motor
revolution only.
Every stroke causes an acceleration and deceleration process of the material
to be transported. The type of this acceleration curve is defined with the
address K independent of the current path acceleration. The least load is
placed on the mechanics in the case of sine−square form acceleration.
However, double the speed is needed as for discontinuous acceleration to
cover the same distance in the same time.
With I, the duration of the material transport is defined in relation to a full
sewing motor revolution in percent. The value 50 corresponds to a half
revolution. The smaller the programmed value, the greater the resulting
values for maximum speed and acceleration.
The intermittent operation has an effect on profiles between M14 and
M15/M16/M21. It also has a modal effect beyond the program end. It is
switched off by G159.
Syntax
Meaning of the addresses
Explanation