Determining mass inertia

NAVIGATION: Closed-loop control > Basic settings > Determining mass inertia

Determining mass inertia

To define the mass inertia of a motor easily, the "automatic mass inertia definition" function is available. In the standard motor data set the speed controller is preset for a moderately stiff mechanism.
The automatic mass inertia definition function is started when the hardware has been enabled. Clicking the "Automatic Inertia Definition" button enters the latest value obtained in SCD_Jsum.

Bild: Determining mass inertia

ATTENTION:

While the mass inertia is being determined the motor shaft executes rotary movements. There is a risk that the plant and the motor may be destroyed.

NOTE:

This function is not advisable for horizontal axes.
When executing the function pay attention to mechanical limit stops.
This function should only be applied with a free-rotating motor shaft.

NOTE:

If no values are entered for "Hysteresis Speed" and "Hysteresis Torque", 20% of the rated speed and 20% of the rated torque is set. The distance covered results from the preset values.