Drive Dimensioning - Lenze m850 Series Project Planning

Information on project planning

Drive dimensioning

Drive dimensioning
In order to carry out an accurate drive dimensioning process, you can use our configuring
software, the »Drive Solution Designer«.
With the «Drive Solution Designer«, you can design the drive both quickly and to a high
quality. The software contains profound and proven expertise with regard to drive applications
and mechatronic drive components.
Please get in touch with your Lenze representative.
The dimensioning is suitable for:
kinematic profiles
•
operating modes S1, S2, S3, S6
•
simple linear speed profiles, not for S-curves or similar
•
The following 3 elements are taken into consideration in the dimensioning process:
Drive function
On the basis of the values required for the process that are specified, a drive is selected, for
which all operating points are within the speed-torque characteristic curve of the motor.
As a result, a motor with a suitable speed and an inverter with a sufficient maximum current
are selected. Further limits (maximum speed, installation height...) are specified in tables.
Mechanical strength
On the basis of the occurring forces and torques, a drive is selected that has a sufficient
mechanical strength (endurance strength for the periodically occurring torques and fatigue
strength for the sporadically occurring torques).
Thermal dimensioning
For the inverter, the thermal dimensioning process is carried out on the basis of the
continuous inverter current or on the basis of the continuous torque from the motor-inverter
combination, which can be reached.
The motor is thermally dimensioned on the basis of the mean speed and the effective torque.
The mean speed of the drive should not exceed the values specified.
If dimensioning processes are complex or reach limit loads, please refer to your
Lenze representative.
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