HEIDENHAIN TNC 306 Service Manual - Manual (Page 80)

SERVICE MANUAL TNC 306/360
Page 73
HEIDENHAIN Service
16.3 Switching Over the Position Display
Press key Function
MOD
Acitvate auxiliary mode "MOD"
or Press key repeatedly, until the dialog POSITION DISPLAY appears
ENT
Press key, until the desired display mode (ACTL, NOML, LAG,
DIST) appears.
END Exit auxiliary mode
16.4 Feed Adjustment
Check/adjust the machine parameters (note down the original values before changing).
Parameter No. Entry Value Function Original
Entry Value
1390 0 feed precontrol on
7290 0 display step = 1 µm
- Switch to position display to LAG (display of servo lag)
- Enter the following program (adjustment of X-axis):
1 LBL 1
2 X 100 R0 F 29999 M (program the traverse range with as large a value as possible)
3 X 0 R M
4 CALL LBL 1 REP 10
- Run the test program in the operating mode "Program Run/Full Sequence"
- Adjust the feed at the servo-amplifier (tachometer) until the servo lag display is approx.
zero for positioning in both directions
- Reset the values of the machine parameters and the position display to their original
values
- Adjust the remaining axes accordingly.