Drive Dimensioning - Lenze g500-B Manual

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.
NOTICE
The dimensioning is suitable for the operating modes S1, S2, S3 and S6
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 with an inverter with a sufficient maximum current
is selected. Further limits (maximum speed, installation height...) are specified in tables.
Mechanical strength
On the basis of the forces and torques which build, a drive is selected that has a sufficient
mechanic strength (endurance strength for the periodically occurring torques and fatique
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 thermal dimensioning of the gearbox is based on the medium speed and the permanent
torque of the motor/gearbox combination. The thermal limit speed is to be understood as a
recommendation.
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 branch office
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