Motor Control and Switchgear

Onboard drive and control make stepper motors smart

31 March 2022

Brushless DC motors with integrated drive and control electronics from Delta Line have provided machine builders with unprecedented design flexibility thanks to their compact size, high efficiency and excellent reliability. Now Delta Line has expanded its offering of motors with integrated electronics to include stepper motors.

The ISI57 and ISI60 stepper motors with integrated electronics provide significant space savings, not only by doing away with the separate driver and controller, but also by eliminating the need to run motor power and feedback cables to an external controller. The reduction in cabling also simplifies integration and improves efficiency, reliability and electrical noise, which helps to keep encoder signals “clean,” free fromSource: Delta LineSource: Delta Line electromagnetic interference.

The size 57 and size 60 stepper motors use stepless control technology for 65,536 steps per revolution and have torque ranges from 0.55 Nm to 3.1 Nm. Encoder options for the ISI57 and ISI60 stepper motors with integrated electronics include magnetic incremental, single-turn absolute or multi-turn absolute to meet a wide range of applications. Communication options include CANopen, Modbus RTU, EtherCAT, Modbus TCP/IP and Profinet, so the motors can be easily connected to any industrial network.

Delta Line’s stepper motors with integrated electronics simplify the physical integration, parameterization and startup of the system, since the drive and controller are matched to the motor, and the controller automatically recognizes the motor parameters and feedback configuration. With a smart stepper motor, designers and machine builders can achieve cost savings of 20% to 40% over a conventional stepper motor with separate drive and controller.

Stepper motors with onboard drive and controller are ideal for applications where the accurate, step-by-step positioning and ease-of-use of a stepper motor is required but space is limited or efficiency is critical. And the motors are IP65 rated, so they can be used in a wide range of environments where moisture or water spray is present.

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