35160 SPIND_EXTERN_VELO_LIMIT
A limit for the spindle speed is entered in SPIND_EXTERN_VELO_UNIT, which is taken
into account when the IS “Velocity/speed limitation” (DB31, ... DBX3.6) is enabled. If the
spindle speed is too high, the NCK will limit the it to this value.

在附件头子程序增加：
N35160 $MA_SPIND_EXTERN_VELO_LIMIT[AX4]=R99；用R99设置主轴速度，假如主轴是第四轴