HEIDENHAIN TNC 430 PA/M - Speed Controller

6 – 134 HEIDENHAIN Technical Manual TNC 426, TNC 430
6.8.4 Speed Controller (Only TNC 426 PB/M, TNC 430 PA/M)
Digital speed controllers are integrated in the TNC 426 PB/M and TNC 430 PA/M:
n TNC 426 PB: digital speed encoder for 5 axes and 1 spindle
n TNC 430 PA: digital speed encoder for 6 axes and 1 spindle
n TNC 426 M: digital speed encoder for 5 axes and 1 spindle
n TNC 430 M: digital speed encoder for 6 or 9 axes and 1 spindle
The actual speed values are measured directly at the motors with
HEIDENHAIN rotary encoders. The position controller provides the nominal
speed value. The speed controller is driven by the difference between nominal
and actual speed values. It provides the nominal current value as output.
(See "Commissioning” on page 6 – 462)
With Module 9164 you can read the actual speed value of the motors.
You can adjust the step response of the speed controller:
7
77
7 With the position controller switched off, enter with MP2500.x a
proportional factor and with MP2510.x an integral factor for the speed
controller. Adjust the step response so that only one overshoot is visible and
the settling time t
off
is as small as possible.
Realistic values for the settling time: 3 ms to 15 ms
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