HEIDENHAIN PT 855 for Turning - Manual (Page 66)

II - 3 Encoders and Measured Value Display
68 Technical Information POSITIP 855
II - 3
Encoders and Measured Value Display
This chapter describes all operating parameters which you must
set for the encoders and measured value display. Most entries can
be found in the operating instructions for your encoder. Chapter
II - 2 contains a list of operating parameters in which you can
record your entries.
• Adapting the encoder
-
Encoder output signals 16 µA or 40 µA
- Reference marks on the encoder:
distance-coded or one reference mark
- Deactivation of reference mark evaluation
- Definition of the coordinate axes
- Counting direction of the encoder signals
- Encoder monitoring
- Linear axis error compensation
• Selection of display step
• Setting the measured value display
-
Designations of the coordinate axes
- Unit of measurement
- Radius/diameter display
- Separate value/sum display
Adapting the encoders
Encoder output signal: P 81.*
Encoder with 16 µA output signal: P 81.* = 0
Encoder with 40 µA output signal: P 81.* = 1
The position feedback encoders on the machine may have one reference
mark or several distance-coded reference marks.
Reference marks on the encoder: P 43.*
One reference mark (None): P 43.* = 0
Distance-coded reference marks (500 x GP): P 43.* = 500
Distance-coded reference marks (1000 x GP): P 43.* = 1000
Distance-coded reference marks (2000 x GP): P 43.* = 2000
Distance-coded reference marks (5000 x GP): P 43.* = 5000
Reference mark evaluation can be deactivated separately for each axis.
Note that the datum points for those axes are then no longer stored in
nonvolatile memory.
Reference mark evaluation: P 44.*
Evaluate reference mark(s) (Yes): P 44.* = 0
Do not evaluate reference mark(s) (No): P 44.* = 1