1098 HEIDENHAIN Technical Manual MANUALplus 620
TNCopt now determines the feedforward parameters automatically:
- Friction (low speed)
- Friction (high speed)
- Acceleration
- Holding current for vertical axes
by minimizing the integral current
The integral current should now be almost 0:
Transfer the determined machine parameters to the control.
IPC / Kv factor A prerequisite for the correct adjustment of the IPC is that the acceleration
feedforward (MP_compAcc parameter) has realistic values. It is therefore
essential that you adjust the acceleration feedforward control with TNCopt, as
described above, before adjusting the IPC and kv factor.
The IPC and the kv factor are adjusted with TNCopt. Continue as described in
the TNCopt User’s Manual to set the IPC and determine the kv factor.
TNCopt automatically increases the kv factor until a sustained oscillation
results:
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