HEIDENHAIN TNC 306 Technical Manual - Manual (Page 239)

2/97
TNC 406/TNC 306 15 Commissioning and start-up procedure 4-139
The following curve represents the ideal response of the tachometer signal:
U [V]
t [ms]
U
max
T
Tacho-signal
1 Overshoot
Given step
function
The following curves show incorrectly adjusted tachosignals:
U [V]
t [ms]
U
max
Several overshoots
Incorrect!
P-component of the subordinate control loop too
high or I-component too low
U [V]
t [ms]
U
max
Incorrect!
Too flat
P-component of the subordinate control loop too
low or I-component too high