Understanding FANUC Parameter 1860: Unlocking its Work and Applications

  1. Consult the machine manual: Check the machine manual for specific instructions on setting parameter 1860.
  2. Determine the scaling factor: Calculate the required scaling factor based on the machine's mechanics and feedback device resolution.
  3. Enter the parameter: Use the FANUC control system's parameter setting menu to enter the new value for parameter 1860.

Using a non-contact spindle orientation sensor, they determine the spindle is stopping 0.05mm away from true zero radially. They calculate:

Data Type: It typically uses modular arithmetic, meaning the value "wraps around" based on the encoder's pulses per revolution.

Additional Tips and Best Practices

Parameter 1860 had become a kind of urban legend among us technicians. Some said it was a dead-code placeholder left by a long-retired engineer; others swore it was a safety interlock with a temper. When the line tripped, robots would pause midswing and then resume as if nothing had happened. It was notorious for making production supervisors curse and invent excuses.

In the parameter screen, locate Parameter 1815 (APZ bit) or 1860 (depending on the specific control model's logic). Set the relevant bit to "1" for the desired axis. Finalize: