The global site of the UK's leading magazine for automation, motion engineering and power transmission
28 May, 2024

Twitter link

Smartphone-sized LV drive supports Sercos III communications

02 April, 2014

The Israeli motion control specialist Servotronix has launched a compact, high-power servodrive with a Sercos III interface, that is aimed at 15–48V DC bus servo motion applications. The LVD Sercos III drive can be used with small low-voltage brushless, stepper or brushed DC motors.

The drive is about the size of a smartphone, and weighs 250g, making it one of the smallest drives available. With a 12A rms peak current and a switching frequency of up to 100kHz, it is also claimed to one of the most powerful LV drives available.

The high PWM switching frequency, combined with field-oriented control and space-vector modulation, enables operation of low-inductance motors while minimising current ripple and eliminating acoustic noise. Separate logic and bus power supplies allow safe motor power-off, while maintaining the drive state, and a fast restart.

Control of stepper motors is achieved using closed-loop commutation, with no step loss. This is said to deliver servo-like performance with the low cost of a stepper motor.

Servotronix's LVD drive weighs just 250g, yet delivers 12A peak currents

The drive’s support for Sercos III provides high-performance, multi-axis control at a competitive price. The drive has been qualified by Bosch Rexroth for use with its IndraMotion Control models, MLC motion logic control, MLD drive-integrated motion control, and MTX CNC platform.

  • To view a digital copy of the latest issue of Drives & Controls, click here.

    To visit the digital library of past issues, click here

    To subscribe to the magazine, click here



"Do you think that robots create or destroy jobs?"



Most Read Articles