
5.FUNCTION DESCRIPTIONS FANUC AC SPINDLE MOTOR αi series B-65280EN/05
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5.7 UNEXPECTED DISTURBANCE TORQUE DETECTION
FUNCTION
Optional function
5.7.1 Overview
The unexpected disturbance torque detection function is intended to
monitor friction torque components and those needed in machining by
extracting them from the torque output from the spindle motor and
eliminating the torque needed in acceleration/deceleration. It can be
used to detect a broken tool and to manage the tools for service life.
NOTE
1 Using this function requires the CNC software
option for the unexpected disturbance torque
detection function.
2 A broken or worn tool may or may not be able to be
detected depending on the machine condition.
5.7.2 Series and Editions of Applicable Spindle Software
Series Edition Remark
Series 9D50
A(01) and
subsequent editions
FS16
i / FS18i / FS21i / FS0i / FS15i
Series 9D70
A(01) and
subsequent editions
FS30
i / FS31i / FS32i