2 – 24 HEIDENHAIN Technical Manual TNC 426, TNC 430
Machine Integration TNC 426 TNC 430
Feedback control
Integral drive control TNC 426 PB, TNC 426 M TNC 430 PA, TNC 430 M
Analog speed command interface TNC 426 CB TNC 430 CA
Position loop resolution
Cycle time for path interpolation TNC 426 CB/PB, TNC 430 CA/PA: 3 ms
TNC 426 M, TNC 430 M: can be set between 3 ms and
6ms
Cycle time for speed TNC 426 PB/M, TNC 430 PA/M: 0.6 ms
Nominal feed rate TNC 426 PB/M, TNC 430 PA/M:
TNC 426 PB/M, TNC 430 PA/M:
n Up to 60 m/min for encoders with 20 µm grating period
n Up to 300 m/min for encoders with 100 µm grating
period
Speed TNC 426 PB (Standard),
TNC 426 M/12 000 rpm:
TNC 426 PB (option),
TNC 426 M/30 000 rpm:
TNC 430 PA,
TNC 430 M:
Volts-per-hertz control
mode
TNC 426 M/12 000 rpm:
TNC 426 M/30 000 rpm:
Volts-per-hertz control
mode
TNC 430 M:
TNC 426 CB: TNC 430 CA:
Error compensation
n Linear and nonlinear axis error
n Backlash
n Reversal spikes during circular movements
n Offset
n Thermal expansion
n Stiction
n Sliding friction
Signal period
1024
-----------------------------------------
24000
No. of pole pairs
----------------------------------------------------
srew pitch min
1–
⋅⋅
24000
No. of pole pairs
----------------------------------------------------
min
1–
⋅
60000
No. of pole pairs
----------------------------------------------------
min
1–
⋅
60000
No. of pole pairs
----------------------------------------------------
min
1–
⋅
24000
No. of pole pairs
----------------------------------------------------
min
1–
⋅
60000
No. of pole pairs
----------------------------------------------------
min
1–
⋅
60000
No. of pole pairs
----------------------------------------------------
min
1–
⋅
100000 rpm 100000 rpm