After replacing a servo motor or ballscrew, the machine shakes during G01 moves. The new components have different inertia. Calculate the new inertia ratio (parameter 2047/2048) first, then reduce 1860 by 20% as a starting point, then fine-tune upward.
When the procedure completes successfully: fanuc parameter 1860 full
If the absolute encoder battery dies, the machine loses its zero position. After replacing the battery, you must re-establish machine zero. Parameter 1860 allows you to "tell" the control where the new zero is relative to the mechanical hard stops. After replacing a servo motor or ballscrew, the
Fanuc (often referred to as P1860 ) is a critical setting used to define the Position Deviation Limit (Position Error) during a stop or at rest . It essentially sets the "allowable window" for how far an axis can drift from its commanded position before the CNC triggers a Servo Alarm (typically SV0410) . 1. Purpose of Parameter 1860 When the procedure completes successfully: If the absolute
Unlike common mechanical settings like rapid traverse rates ( Parameter 1420 ) or spindle positioning ( Parameter 4077 ), .
Change back to 0 and press [RESET] to clear the resulting PWE alarm.