Universal Drive Modules

The SDMnt is a series of EtherCAT modules with open-loop stepper motor drives that are specifically designed to address the need for economical solutions for machines with multiple stepper motors operating as part of an EtherCAT network. The SDMnt is available in versions with 4 and 8 axes, with or without built-in motor power supply.

Each unit contains a bipolar drive with a maximum of 40Vdc, 3A. All other drives are unipolar with a maximum of 40Vdc, 3A. The desired current is individually programmable for each drive and can be set to the following values: 1A, 1.5A, 2A, and 3A. The step resolution is individually programmable for each drive and can be set to the following levels: full step, 1/2, 1/4, 1/8, and 1/16 step. The SDMnt contains two sets of Pulse/Dir inputs and two sets of Pulse/Dir outputs for Master-Slave operation. There are 6 inputs and 6 outputs for general use. Modules with 40Vdc, 240W built-in motor power supply are powered by 110Vac to 230Vac.

Supply voltage
12-80 VDC
Nominal current
2.5-10 A RMS Peak
Peak current
5-20 A sin. Peak
Number of axes per module
4 or 8
Motor type support
Fieldbus options
Safety options
Plastic IP20
4DI, 4DO, 2AI, 1AO
Brake resistor

  • SDMnt-datasheet
  • SDMnt-Manual
  • MMI Application Studio
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  • Datasheets
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Frequently Asked Questions

You can place an order with VARIODRIVE by sending your request to Your request will then be processed directly by our internal sales team.

By choosing VARIODRIVE’s complete solution, you won’t need to worry about integrating different drive components into the machine’s drive chain. We stand behind our complete solution and can guarantee its functionality.

Due to our in-depth knowledge of our products and their integration into applications, we can provide a system warranty. At that point, we guarantee that the application will function using our motion control and traction solutions.

For most products on our website, you can download the 3D files. If the desired 3D file is not available, please contact, and we will send you the 3D file as soon as possible.

You can download the necessary configuration software for most products on our website. For a few products, this might not be possible. In such cases, please contact, and we will assist you as soon as possible.

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