Siemens S120 configurationmanual Torque-time diagram, Required motor torque

Configuring the motor 5.1 Procedure

Angle-time diagrams and speed-time diagrams can be converted to angular acceleration- time diagrams α (t) in accordance with the following correlations:

Example



Figure 5-1 Example of a duty cycle with a speed-time diagram n(t), the resulting angular acceleration-time diagram α(t), and a machining torque-time diagram Mb(t)

5.1.3Torque-time diagram

Required motor torque

The required motor torque Mm is always the sum of the individual torques. The sign in front of the torque specifications must always be taken into account.

Mm = Ma + Mb + Mr

Ma : Accelerating torque

Mb: Machining torque

Mr: Frictional torque

64	1FW6 Built-in torque motors
	Configuration Manual, 05/2009, 6SN1197-0AE00-0BP3