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New ultra-compact stepping drivers combine high torque and low vibration

04 October 2023

EAO Ltd has introduced two new stepper motor drive families with the ability to deliver the higher torque factors necessary to make motion smoother and more precise and slash equipment positioning cycle times.

Developed by motion control specialist Sanyo Denki, the Sanmotion F2 Series of stepper motor drivers target demanding two- and five-phase motor control applications (depending on model) in medical equipment, semiconductor manufacturing, spectrum analysers and electron microscopes. Two variants are available: 

The Sanmotion F2BED200P100 drives stepper motors that use phase currents of up to 2A. It’s a simple ‘plug & play’ replacement for the popular BS1D200P10 stepper motor driver but delivers up to 33 percent less vibration in a seven percent smaller and 39 percent lighter frame. 

The high-power F2BFD400P100 targets equipment that uses stepper motors with phase currents between three and four amps, typically 56mm and 86mm assemblies. The F2BFD400P100 driver delivers twice the current compared to the model it replaces, but in a frame that is 12 percent smaller and 33 percent lighter.

Both of the new Sanmotion F2 stepper motor drivers offer a range of operating function selections such as pulse input mode, resolution, low vibration mode, operating current, step angle and current at rest, together with a number of alert signals useful for the implementation of a safe motor stop, including overcurrent detection, abnormal power supply voltage and excess temperature. 

The latest devices are complemented by Sanyo Denki’s PC driver software that facilitates easy setting and adjustment of I/O signals, current value selections, and the storage of maintenance notifications. 

For precise control of five-phase stepper motors EAO Ltd also offers Sanyo Denki Sanmotion F5P series. 

For further details on the F2 and F5P Series of Sanmotion stepper motor drivers, please visit the website

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