Fanuc Parameter 1829 Jun 2026

Offsets the physical gap in mechanical components like ball screws or gears.

: Set PWE back to 0 and cycle power if required by the control. PARAMETER MANUAL fanuc parameter 1829

| Symptom / Alarm | Possible Cause(s) | Potential Solutions | | :------------------------ | :---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | :---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Alarm | The axis's position deviation when stationary has exceeded the value set in Parameter 1829 . Possible causes include: Mechanical binding/jamming, insufficient servo loop gain (Parameter 1825 is too low), improper acceleration/deceleration, or an electrical fault (e.g., a blown fuse). | 1. Jog the axis away from its position and return. 2. Check for mechanical issues. 3. Verify Parameter 1825 and 1829 settings. 4. Refer to diagnostic parameters (e.g., DGN200) for clues. | | SV0411 (ALM 411) Alarm | The axis's position deviation when moving has exceeded the value set in Parameter 1828 . Possible causes include: Servo motor stalling, excessive cutting load, and incorrect acceleration/deceleration settings. | This alarm often relates to Parameter 1828 rather than 1829. It indicates excessive following error during motion. Solutions may involve adjusting feedrates, checking load, and verifying Parameter 1828 and related time constants. | | SV0403 (ALM 403) Alarm | The commanded motion would cause the axis to exceed its software or hardware travel limit. This alarm is distinct from the position deviation alarms. | The solution is generally to jog the axis away from the limit or adjust the stroke limit parameters (e.g., 1320, 1321) if safe to do so. | | Dual Check Safety Alarm | An error is detected in the safety parameters, specifically where No.1829 is listed as a key safety parameter. | Re-set the safety parameters as per the official "Dual Check Safety" manual and ensure the values for Parameter 1829 and other related parameters (1838, 1942, etc.) are correct. | Offsets the physical gap in mechanical components like

Prior to changing Parameter 1829 or related velocity/gain parameters, take an SRAM backup or output your parameter file to a Flash card/USB drive. you know how frustrating it is.

flash across your Fanuc control screen, you know how frustrating it is. The machine is supposed to be standing still, yet it just shut down because of an "excess error." At the heart of this issue is Parameter 1829 , the gatekeeper for your machine's stationary precision. What is Fanuc Parameter 1829? Parameter 1829 defines the Position Deviation Limit while an axis is stopped.