1.1 Product Overview

The 485 bus type open-loop and closed-loop stepper driver is the latest digital hybrid stepper servo driver with serial port debugging function, which integrates the MODBUS-RTU standard protocol specification. The communication network port adopts a standard RJ45 interface, and users can set various parameters such as subdivision, current, speed, and working mode through the upper computer debugging software, greatly enriching the practical functions of the product and meeting the application needs of most occasions.

The 485 bus type open-loop and closed-loop stepper driver adopts a servo like control principle, which is compatible with the dual advantages of open-loop stepper and servo systems. It adopts the latest 32-bit DSP control technology, greatly improving the performance of the stepper system. Both medium and low speeds have excellent smoothness and ultra-low noise, and the high-speed torque is greatly improved, expanding the speed application range of stepper motors. The smooth and precise pure sine current vector control technology effectively reduces motor heating, and has strong compatibility and high cost-effectiveness, which can meet the requirements 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

● Support switching between open and closed loop modes

● Supports speed mode, position mode, multi-stage position mode, and return to origin mode

Current, locking current, subdivision, PI and other parameters can be set and queried through the main station

Adopting RS485 bus with isolation, supporting standard MODBUS-RTU protocol

● Dial SW1-5 to set the driver communication address, supporting 31 devices, and more can be set through the main station

11 photoelectric isolation programmable input interfaces, receiving external control signals, realizing functions such as driver enable, start stop, limit, etc

● 5-channel optoelectronic isolation programmable output interface, outputting driver status and control signals, such as alarm, in place, return to origin completion and other functions

Built in fine particles, excellent low-speed stability

● It has protection functions such as overcurrent, overvoltage, undervoltage, phase loss, and overshoot

Pure sine current vector control effectively reduces motor heating

● AC/DC universal, voltage range: AC20~50V/DC24V~70V

1.3 Application Fields

Suitable for various small and medium-sized automation equipment and instruments, such as engraving machines, marking machines, cutting machines, plotters, CNC machine tools, automatic assembly equipment, etc. The application effect is particularly good in devices where users expect low noise and high speed.

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