HEIDENHAIN ND 780 - Handbuch (Seite 218)

94
II Technical Information
II - 2 Installation Set
u
p
Viewing the Compensation Table
 Press the EDIT TABLE soft key.
 To switch between the table, and graph views, press the VIEW soft
key.

Press the UP, or DOWN ARROW keys, or the numeric keys to move
the cursor within the table.
The error compensation table data may be saved to, or loaded from a
PC via the serial port.
Exporting the Current Compensation Table

Press the EDIT TABLE soft key
 Press the RIGHT or LEFT arrow key
 Press the IMPORT/EXPORT soft key.
 Press the EXPORT TABLE soft key.
Importing a New Compensation Table
 Press the EDIT TABLE soft key.
 Press the RIGHT or LEFT arrow key
 Press the IMPORT/EXPORT soft key.
 Press the IMPORT TABLE soft key.
Backlash Compensation
When using a rotary encoder with a lead screw, a change in direction
of the table might cause an error in the displayed position due to
clearances within the lead screw assembly. This clearance is referred
to as backlash. This error can be compensated for by inputting the
amount of backlash within the lead screw into the Backlash
Compensation feature.
If the rotary encoder is ahead of the table (displayed value is greater
than the table’s true position), this is called positive backlash, and the
value entered should be the positive value of the amount of error.
No Backlash Compensation is 0.000.