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If Parameter 1829 is set too low, the motor will lag behind its commanded position during the homing routine. If the lag exceeds the limit set in Parameter 1828 (Position Deviation Limit during movement), the CNC throws a servo alarm. 2. Axis Overshoot or Oscillating (Vibrating)
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When Parameter 1829 is misconfigured, mismatched across axes, or rendered unstable by mechanical wear, the FANUC system will trigger specific servo alarms ( SV Alarms ): 1. SV 0411 - Excess Error (Moving) fanuc parameter 1829
Look across the columns to find the specific axis throwing the SV0411 alarm (e.g., X, Y, or Z).
If the actual following error of an axis exceeds the limit specified in Parameter 1829 during a move, the FANUC system immediately halts operation and triggers . If Parameter 1829 is set too low, the
: Gravity causing an axis to drop on a slant-bed lathe or vertical machining center if the motor torque or holding brake is insufficient.
This is the baseline gain for normal machining. Generally, Parameter 1829 is matched exactly to the value in Parameter 1825 so the axis dynamics remain linear. Axis Overshoot or Oscillating (Vibrating) This public link
Alarm PS081 / PS082 on M98 or M198 ↓ Check if subprogram exists (Program List screen) ↓ Exists Increase Parameter 1829 (e.g., double current value) ↓ Retest ↓ Still fails Check if subprogram is stored BEFORE the call point in memory order ↓ If after Rename/reorder programs (Program numbers don’t determine search order — creation order does) ↓ Still fails? → Check DNC buffer settings (Parameter 138, 139) or switch to local subprograms
sets the threshold for this error when the axis is stationary. Parameter 1828 , by contrast, handles the limit while the axis is moving. Why Does Alarm 410 Trigger?
