Calibrate the re-ref sensors

WHAT YOU NEED 

Tools:Tape Measure

Safety Equipment:Standard Personal Protective Equipment

CAUTIONWhen using the manual mode, make sure that everything and everyone is clear of moving parts to prevent damage or injuries.

  1. Disable the follower on the toolbar.
  2. Open the Setup window and set P720 to "1".
  3. Open the Manual Mode window.
  4. Set the feeder speed to 30%.
  5. Feed a straight 6‑m-long timber into the saw so that Re-Ref Add in the Manual Mode window reads "0".

  6. Make a note of the average value between the Re-Ref Right Err and Re-Ref Left Err readings. (If a follower is fitted, only the Re-Ref Right Err value is to be used.)

    Note: if the difference between the Re-Ref Right Err and Re-Ref Left Err readings remains abnormally high (greater than 0.1 mm) after several moves from Re‑Ref Add 2 to 0, a length calibration probably needs to be performed. (This does not apply if a follower is fitted.)

  7. Use the appropriate Left & Right drive button to move the timber back towards the infeed conveyor until Re‑Ref Add reads "2", then forth again towards the feeder until Re‑Ref Add returns to "0".
  8. Make another note of the average value between the Re-Ref Right Err and Re-Ref Left Err readings.
  9. Repeat the last two steps once again.
  10. Make a final average of the three recorded average values.
  11. In the Setup window, adjust P723 by adding the final average value if positive or taking it away if negative.
  12. Repeat all the steps above until each of the Re-Ref Right Err and Re-Ref Left Err readings no longer exceeds 0.05 mm.

  13. Repeat all the steps above for each one of the next four separation distances by moving the timber back and forth three times between their respective Re‑Ref Add values in the following order:

    1. from Re‑Ref Add 3 to 1 to adjust P724
    2. from Re‑Ref Add 4 to 2 to adjust P725
    3. from Re‑Ref Add 5 to 3 to adjust P726
    4. from Re‑Ref Add 6 to 4 to adjust P727
  14. Manually measure the last separation distance between the two re-ref sensors farthest from the saw chamber and adjust P728 accordingly.
  15. In the Setup window, set P720 to "3".
  16. Set the feeder speed to 100% and run the timber fully in and out 30 times to perform a self-calibration.
  17. Enable the follower on the toolbar.