Fanuc Parameter 1829 |best| Link

Are you currently experiencing a (like Alarm 410 or 411) on your machine?

The standard loop gain applied to the axis during normal feed and rapid traverse operations.

Disclaimer: Parameter adjustments should only be performed by trained technicians. Improper adjustments can lead to machine damage or injury.

Position loop gain determines how aggressively a servo motor responds to a position command from the CNC. fanuc parameter 1829

: In vertical or slanted axes, check if the motor brake is failing or if there is insufficient counter-balance.

FANUC parameters use (sometimes called increments), not standard millimeters or inches directly.

If the mechanics are healthy, you may need to increase the value in Parameter 1829 to allow more "wiggle room" during the stop phase. Are you currently experiencing a (like Alarm 410

When the machine performs a reference point return (G28 or Homing), it switches from the standard gain (Parameter 1825) to the homing position loop gain defined in Parameter 1829 .

If all mechanical and electrical checks pass, consider a modest increase to Parameter 1829. Increase in small increments (e.g., 10–20%) and retest until the alarm clears.

Sets the deceleration speed (feedrate) the axis drops down to after hitting the homing limit switch. If 1424 is too fast, even a perfect 1829 gain won't stop the axis in time. Troubleshooting Guide: Step-by-Step Fixes Improper adjustments can lead to machine damage or injury

Increase the parameter by a small increment (e.g., 10-20%) and test the machine.

When confronted with a Parameter 1829-related alarm, follow this systematic approach:

In a CNC machine, when a motion command completes, the CNC expects the axis to settle exactly at the commanded position. However, factors like external forces or servo drift can cause a small difference between the commanded position and the actual position. This is called .