HEIDENHAIN TNC 150 B Mounting Instructions page 45

Function Parameter Possible
No.
entry values
Trailing error super-
vision in trailing
operation
(Emergency stop) 174 0- 1OOmm
(eraseable) 175 0- IOOmm
Machine parameter 174
IPreliminary
lentry values
50
30
Optimised
entry values
Trailing error supervision for trailing operation (not eraseable):
If the entered permissible trailing error is exceeded, the error
GROSS POSITIONING ERROR A is displayed.
This error is indicated by a flashing display and can only be cancelled by switching off 1 :he power
Machine parameter 175
Trailing error supervision for trailing operation (eraseable):
If the entered permissible trailing error is exceeded, the error
POSITIONING ERROR is displayed.
This error display can be cancelled by pressing
CE
0
6.2.4 Machine parameters which are determined after compilation of parameters for ttie ramp characteristic
Function
Parameter Possible
Preliminary Optimised
No. entry values entry values entry values
Positioning
range
x, Y, z
58
0.001 - 0.05 mm
0.005
Axis IV 192
The acceptable range which the control recognises as being "position achieved" can be entered with parameters
58 and 192. For example, by entering 0.05, the machine accepts a position within + 0.05 (mm) of the nominal
position as being "position achieved". The control however, still endeavours to position to the nominal value.
Reduction of this positioning range increases the approach time of the machine and the duration from block to
block in automatic program run.
Backlash
compensation
X 36 - 1 .OOO mm/m
- 0
Y 37 + 1 .OOO mm/m
0
Z 38
0
Ivl3g I
For indirect linear measurement with rotary encoders, a small amount of backlash can be present between the
table movement and the rotary encoder. This backlash can be compensated with parameters 36, 37, 38 and 39.
The value 100 urn must, however, not be exceeded.
.-
Correction factor for 0 - 65,535 pm to
linear correction X 40 software-version 03 0
Y 41 - 1.000 mm/m - 0
Z 42 + 1.000 mm/m
0
IV 43
0
With parameters 40 to 43, linear corrections of individual axes can be programmed. Correction either affects
an extension of the measuring distance or a shortening