Stepper Motor Drivers

What Are Stepper Motor Drives?

Stepper motor drivers, also known as stepper controllers, are electronic devices that translate control signals into electrical pulses to drive stepper motors. These signals dictate the rotor’s position, direction, and speed.
By managing the current flow through each motor phase, these drivers ensure smooth motion, reduce resonance, and enhance system stability. Advanced models support microstepping—dividing standard steps into smaller increments for higher positioning resolution.

Types of Stepper Motor Drivers

Stepper drivers come in several configurations:
  • Digital Drivers: Offer high-precision control via software and digital interfaces
  • Analog Drivers: Suitable for basic control tasks with lower complexity
  • Fieldbus-Enabled Drivers: Compatible with CANopen, EtherCAT, Modbus, Profinet, and other industrial protocols for smart automation integration

How to Choose the Right Stepper Motor Driver?

Selecting the right driver depends on:
  • Voltage and current ratings: Must match the motor’s electrical specs
  • Control mode: Choose open-loop for simplicity or closed-loop for real-time feedback
  • Microstepping resolution: Important for applications requiring ultra-smooth motion
  • PLC and automation compatibility: Ensure seamless integration with existing control systems
Ever Motion Solutions offers stepper motor drivers with both open-loop and closed-loop vector control, built for energy efficiency and industrial fieldbus compatibility.

Applications of Stepper Motor Drivers

Our drivers are used in a wide range of sectors, including:
  • CNC Machinery & 3D Printing: For precision control of axes and extruders
  • Industrial Robotics: Ensuring fluid and repeatable motion
  • Packaging & Automation Systems: Managing conveyors and actuators
  • Medical Equipment: Supporting quiet and accurate movements
Thanks to their versatility, performance, and industrial-grade integration, Ever Motion Solutions' stepper motor drivers are an ideal choice for advanced motion control systems.

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Technologies

ProfiNET, born to be the heir of Profibus, it based over Ethernet and its main aims are the project and plant commissioning costs reduction through an easy integration between the automation Ethernet-based devices and the Siemens devices.

EtherCAT is a fieldbus which meet the need of a standard high performance industrial communication protocol based on an Ethernet network. EtherCAT is currently considered the fastest industrial Ethernet solution.

Modbus is a communication protocol among the most widely used standards in the world of industrial devices. All our devices equipped with a serial interface (RS232 or RS485) implement and support the Modbus RTU protocol.

The Modbus TCP/IP fieldbus, based on Ethernet hardware, was born as an evolution of the classic Modbus RTU fieldbus. Modbus TCP/IP communication protocol allows multiple masters to connect to the same slave.

Ever Motion Solutions has been one of the first companies in the world to implement and validate the CANopen protocol and the DSP402 on its drives for stepper motors and brushless motors, starting from the early ‘90s.

CANopen is a standard communication protocol widely used in the industrial automation fields. First developed for use with CAN fieldbus, it has also been applied to other types of fieldbuses such as Ethercat CoE.

Profibus DP is a protocol for industrial automation field, with an high data exchange rate (up to 12Mbit) and it’s a very popular fieldbus in systems with Siemens and Omron PLCs. Ever Elettronica introduced support for the Profibus DP protocol in 2004.

Ever Motion solutions programmable drives represent something new: they integrate a real PLC on the drive to be able to create complex automations with a single device.

Thanks to the ELSE technology integrated in the Ever Motion Solutions drives motors current control is so high that vibrations, resonances and noises don’t exist anymore.

The innovative f4d2 technology allows the motor’s excitation at high efficiency chopper thanks to the calculations speed for the current regulation performed by the drive's microprocessor and thanks to a proprietary patented algorithm.

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