FANUC α iS servo HRV calibration practice

In modern high-precision CNC machining, the response speed and stability of the servo system directly determine the surface quality and machining efficiency of the parts. For engineers using FANUC α iS, α iF, and β iS series, they often feel at a loss when faced with hundreds of parameters in the servo parameter manual, multiple versions of HRV control (HRV1-HRV4), and complex vibration suppression functions. This article will be based on practical debugging experience to dismantle the complete process from parameter initialization, HRV control selection to mechanical resonance elimination and contour error compensation, helping you quickly locate and solve common problems in machine tool operation.