HEIDENHAIN iTNC 530 HSCI - Software Option 141 - Cross Talk Compensation (CTC)

688 HEIDENHAIN Technical Manual iTNC 530 HSCI
6.4.10 Software option 141—Cross Talk Compensation (CTC)
To accelerate the axes of a machine tool, motor forces or torques must be
applied. These forces can cause deformations of machine parts and thus lead
to deviations at the Tool Center Point (TCP). These deviations can occur both
in the direction of the accelerated axis and in other directions (cross talk).
If the dynamic deviations depending on the axis acceleration are known, they
can be compensated with the CTC software option and thus be minimized.
Often, the resulting error at the TCP depends not only on the acceleration but
also on the position or orientation of the axes in the working space. CTC can
also take this into account.
The CTC software option permits compensations in the following format:
Where k
ij
(s
k
) can depend linearly on the axis position k.
Δs: Error values
a: Acceleration
s: Axis position
i: Index of the axis to be compensated
j: Index of the accelerated axis
k: Index of the axis in relation to which there is a position dependency
Δs
i
= k
ij
(s
k
) * a
j