HEIDENHAIN TNC 407 (243 020) Technical Manual - Manual (Page 393)

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TNC 407/TNC 415/TNC 425 16 Commissioning and start-up procedure 01.98
16.3.7 Optimizing the control with feedforward control (MP1390 = 0)
The following provisional values can be entered for the machine parameters which determine the
control characteristics:
Machine parameter Function Provisional entry value
MP1050 Analogue voltage for rapid
traverse 9 V
MP1060 Acceleration As measured on the machine
(see "Preparation of the machine")
MP1510 kv factor 1
MP1520 Position approach 0.5 [m/min]
These values can usually be further optimized.
Optimize kv factor
Connect storage oscilloscope to tachometer
of the servo-amplifier of the X axis.
Enter following program in
"PROGRAMMING AND EDITING"
operating mode:
LBL 1
X 100
1) R0 F MAX
X 0 R0 F MAX
CALL LBL 1 REP 100/100
Press machine START button in the
"PROGRAM RUN/SINGLE BLOCK"
operating mode.
Machine runs.
kv factor MP1510: Increase entry value until position loop oscillates.
U [V]
t [ms]
kv factor MP1510: Reduce entry value until no oscillations can be detected.
U [V]
t [ms]
1) Program the traverse paths for the axis concerned as large as possible.