ATO digital stepper motor driver is an ideal choice for Nema 42, 51 bipolar stepper motor solution. This stepper motor controller can realize precise position control even without a feedback system.

Features

• Digital stepper motor driver is high performance, extra-low noise and good stability.
• Unique control circuit, high speed response.
• When the step pulse stops over 100ms, the coil current automatically halved.
• Over current, over voltage, under voltage, short circuit protection.
• Suitable for 3 phase Nema 42, Nema 51 hybrid bipolar stepper motors.

Specification

Operating Current Setting

Microstep Segmentation Setting

Dimensions (Unit: mm)

Wiring Diagram

Tips: Precautions for grounding of stepper motor driver

• If there is no isolation between the AC power supply and the DC bus of the drive, do not connect the non-isolated port of the DC bus or the ground of the non-isolated signal to the earth, which may cause equipment damage and personal injury. Because the AC public voltage is not to the ground, there may be a very high voltage between the DC bus ground and the ground.
• In most stepper systems, all common ground and ground are connected together at the signal end. The ground loops generated by multiple ways of connecting the ground are easily affected by noise and generate flow at different reference points.
• In order to keep the command reference voltage constant, the stepper motor must connect the signal ground of the stepper motor driver to the signal ground of the controller.