Universal Drive Modules

The MC4Udc is a modular, configurable multi-axis servo drive system. It consists of a Slave Motion Controller, power supply, and drive modules designed for OEMs with demanding multi-axis motion control applications. The servo drive modules can be controlled by any ACS SPiiPlus-platform EtherCAT master and utilize powerful servo control algorithms to optimize the performance of the motion system.

For the servo drive modules, two types can be selected: the NanoPWM for the most precise performance in terms of position jitter, settling time, and speed accuracy, and the economical PWM drives. The integrated universal servo controller provides the system designer with flexibility to control almost any type of motor. Optionally, the Safe Torque Off (STO) function is available, complying with SIL-3 and PLe safety requirements.

supply voltage
85-440 VAC
Nominated current
1-45 A rms. Peak
Peak current
2-90 A Rms. Peak
Number of axes per module
2 to 8
Motor type support
Brushless AC, Brush DC, Voice coil, Stepper, AC Inductie
Incr. Encoder, SinCos Encoder, Biss-C, EnDat, SSI
Fieldbus options
EtherCAT, Ethernet/IP, ModBus
Safety options
Metal IP20
10-24DI, 12DO, 2-16AI, 2-4AO
Brake resistor

  • MC4U-Datasheet
  • MC4U-LDM
  • MC4U-PS
  • MC4U-PWM
CAD files
  • MC4U 9 inch
  • MC4U 11 inch
  • MC4U 19 inch
  • MC4U 22 inch
  • MC4U-Manual
  • MMI Application Studio
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  • CAD Files
  • Manuals
  • Software
  • Datasheets
  • Datasheets
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  • Datasheets
  • CAD files
  • CAD files
  • CAD files
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  • Manuals
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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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