1.1 Product Overview

The GRX04 pulse enhanced open-loop stepper driver is the latest enhanced open-loop stepper driver launched by Gree IoT Technology Co., Ltd. It uses the latest dedicated motor control digital signal processor to improve the comprehensive performance of the motor, reduce the degree of motor heating, and minimize motor vibration.

Compared to ordinary pulse drivers, GRX04 has added a brake output control interface, which allows for easy control of brakes without the need for external relays; A 4-digit dip switch has been added on the side, which can be used to set multiple working modes. In addition, GRX04 also has a serial port debugging function, which can set various parameters such as subdivision, current, and working mode through the upper computer debugging software, greatly enriching the practical functions of the product and meeting the needs of the vast majority of applications.

1.2 Product Features

New generation 32-bit DSP technology with excellent stability, strong compatibility, and high cost-effectiveness

● Can drive 4, 6, and 8-wire two-phase stepper motors

● External dialing settings for driver current, subdivision, and operating mode

● Optical isolation differential signal input

Built in fine particles, excellent low-speed stability

The pulse response frequency can reach up to 200KHz (higher can be adjusted)

● Subdivision setting range of 200-60000 (any fine subdivision can be set through the upper computer)

Precision current control significantly reduces motor heating

Low vibration and low noise

● Equipped with overcurrent, overvoltage, undervoltage, and phase loss alarm protection functions

Equipped with brake output control interface, saving relay switches

● Input voltage range: DC18V~50V

1.3 Application Fields

Suitable for various small and medium-sized automation equipment and instruments, such as medical equipment, testing equipment, marking machines, plotters, etc. Meet customers' requirements for low noise, low heat generation, convenient wiring, and stronger anti-interference.

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