Expect a "P/S 100" alarm (Parameter Write Enable) to appear, which is normal during this process. : Press the SYSTEM function key.
When the deviation exceeds the 1829 limit, you'll typically see a 410 Servo Alarm . Common causes include: Mechanical Obstructions: fanuc parameter 1829
: Once that gap (positional deviation) exceeds the value you’ve tucked away in Parameter 1829 , the machine triggers an Excess Error (Stop) alarm to prevent potential crashes or inaccurate cuts when it starts moving again . Why You Might Need to Visit 1829 Expect a "P/S 100" alarm (Parameter Write Enable)
Last updated: October 2025 – Applicable to FANUC Series 0i-F Plus and 30i-B Series controls. Common causes include: Mechanical Obstructions: : Once that
is a critical axis control setting that defines the positioning deviation limit while an axis is stopped . It acts as a safety threshold for the CNC system, monitoring the "lag" or "error" between where the control thinks the axis should be and where it actually is while at a standstill.
When a machine frequently hits the limit set by Parameter 1829, it is rarely a software glitch; rather, it is usually a symptom of underlying mechanical or electrical distress: