Axis module selection

INFORMATION

Always use the SEW-Workbench to select the components of MOVIDRIVE® modular. The following explanations are not exhaustive and are only intended for conveying a basic understanding.

The selection of the axis module is made over the course of the output current over time. The required current has to be determined from the required torque characteristic of the connected motor.

  • The axis modules are dimensioned for a nominal output current of 100% IN.
  • In many applications, there is a demand for short-time overload operation. For this purpose, the axis modules can be operated with up to 250% IN for a short period of time.

For overload operation, make sure that the axis module is not thermally overloaded.

For protecting the power components, the axis modules have several monitoring mechanisms such as dynamic utilization, thermal utilization, electromechanical utilization (I2t utilization).

Due to the complexity of the utilization curves, the calculation can only be performed using software. The SEW-Workbench software offers support for dimensioning an axis module.

For a rough selection of the axis module without using software, characteristic load cycles are given in the following section. For other load cycles, the device utilization can only be determined using SEW-Workbench.