Distance Between The Scale Reference Point And The Machine Datum - HEIDENHAIN TNC 426 PB/M Technical Manual

Table of Contents

Distance between

the scale reference

point and the

machine datum

December 2001

For distance-coded reference marks, the machine datum is defined with

respect to the scale reference point, which is at the first reference mark after

the beginning of the measuring length. On angle encoders, the scale

reference point is marked:

In MP960.x, enter the distance between the scale reference point and the

machine datum.

For position encoders without distance-coded reference marks but with more

than one reference mark, the distance between the reference mark to be

traversed and the scale reference point must also be entered:

With Module 9225, enter the distance between the reference mark to be

traversed and the scale reference point.

Module 9225 Compensation value for the reference mark

With Module 9225 you define the distance between the reference mark to be

traversed and the scale reference point for the NC and PLC axes.

B/W/D/K <Axis>

0 to 8: axes 1 to 9

B/W/D/K <Compensation value in 0.1 µm>

0: Reference mark to be traversed = scale reference point

1: Axis does not exist

Error recognition:

Axis does not exist

Reference Marks