6 – 480 HEIDENHAIN Technical Manual TNC 426, TNC 430
The motor might run rough at maximum speed. This can be seen from a
continuous readjustment of the current controller (see I NOMINAL on the
oscilloscope) and a fluctuation of the utilization display, and it is usually
audible. This mostly happens with spindle (asynchronous) motors.
MP2510 too large
I NOMINAL: Readjustment of the speed