Generally, the parameter should be set based on the rapid traverse deviation plus a reasonable safety margin. Adjusting for Stability:
When a CNC machine is in motion, there is always a tiny, calculated delay between the position command sent by the CNC software and the actual physical position of the servo motor. This lag is called or following error .
If the servo motor is forced out of position (e.g., by physical obstruction, mechanical backlash, or failure of a brake) by an amount that exceeds this parameter, the NC (Numerical Control) will trigger a servo alarm and stop to prevent damage to the workpiece or the machine. fanuc parameter 1829
The new mechanical components may have different inertia or friction.
When you encounter this alarm, the following systematic troubleshooting steps are recommended: Generally, the parameter should be set based on
Parameter 1829 does not work in isolation. When tuning or troubleshooting a homing issue, you must evaluate it alongside these related settings:
If you've ever encountered an alarm like or SV008 , parameter 1829 is likely at the center of the issue. If the servo motor is forced out of position (e
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