SD5 Two-Phase Stepper Motor Driver
Core features
- Fully self-developed algorithms: DSP low-level control algorithms are fully in-house developed and support deep customization
- Adaptive motor parameters: Automatically detects motor inductance and resistance at power-on, no manual configuration required, plug-and-play
- Up to 256 microsteps: 256 microstepping (51,200 microsteps per revolution), zero vibration at low speed, ideal for high-precision positioning
- Three-mode control: Supports pulse+direction, RS485 and CANopen simultaneously, flexibly adapting to different host devices
- Intelligent vibration suppression: Built-in adaptive anti-resonance algorithm, no resonance at medium and low speeds, low noise
- Stall detection & alarm output: Real-time monitoring of motor status with automatic alarms for stall, overcurrent, overvoltage and overheating
- OEM/customization: Firmware, interfaces and enclosure form factor can all be customized, private labeling supported
Precision Stepper Motor Drives: Powering Smooth and Accurate Motion
The SD5 is a high-performance two-phase digital stepper motor driver developed entirely in-house, based on a DSP control platform, supporting three control modes: pulse+direction, RS485 and CANopen, and compatible with 42–86 frame two-phase stepper motors. The driver is equipped with intelligent algorithms such as adaptive motor parameter identification, vibration suppression and self-tuning, supporting up to 256 microsteps (51,200 microsteps per revolution) for ultra-low vibration and highly smooth motion. Peak current 0.5–8 A, supply range DC 24–72 V; widely used in 3C electronics, laser processing, engraving machines, automated production lines, AGVs and more.
Designed for demanding applications, our stepper drivers use advanced microstepping technology to effectively reduce vibration and acoustic noise, ensuring quiet operation even at high speeds. Comprehensive overcurrent, overheating and overvoltage protection keeps your equipment safe and your system running stably. The product range offers a variety of configurations, from compact low-power modules to high-torque industrial solutions, all with flexible interface options including pulse/direction, analog signals and industrial bus communication.
Versatile Applications Across Industries
Our stepper motor drivers are engineered to meet the rigorous demands of a wide range of industries. Key applications include:
Industrial Automation & CNC: Precision axis control for CNC milling machines, laser cutters and automated assembly lines.
3D Printing & Additive Manufacturing: Smooth and accurate extruder and print head movement for high-quality prints.
Robotics: Reliable joint actuation and precise positioning for robotic arms and autonomous mobile robots.
Medical & Laboratory Equipment: Accurate fluid handling in infusion pumps and precise positioning in diagnostic imaging systems.
Textile & Packaging Machinery: Consistent tension control, feeding and labeling operations with high repeatability.
Why choose the SD5?
Most drivers on the market use reference chip solutions with fixed parameters that cannot be changed. The SD5 is fully self-developed from the DSP low level to the host protocols: whatever you want to change, we can change.
Need the protocol to work with your own controller? Yes, we can.
Need a customized power-on self-check process? Yes, we can.
Custom I/O special functions? Yes, we can.
Custom commissioning software? Yes, we can.
SD5 Technical Specifications
| Model | SD5 |
|---|---|
| Compatible motors | 42 / 57 / 86 frame two-phase stepper motors |
| Control modes | Pulse+direction / RS485 (Modbus-RTU) / CANopen |
| Microstepping | Up to 256 microsteps (51,200 microsteps per revolution) |
| Peak output current | 0.5 A – 8 A |
| Supply voltage | DC 24 V – 72 V |
| Protection | Overcurrent, overvoltage, overheating, stall detection with alarm output |
| Typical applications | Laser engraving, CNC carving, 3D printing, automation lines, AGV/AMR, medical equipment |
Model code explanation
SD - 5 - 1 - A - 2 (example: SD5 open-loop stepper driver, DC24-70V supply, pulse control)
1----2---3---4---5
(1) SD: series code for stepper drivers
(2) 5 is an open-loop stepper driver, 6 is a closed-loop stepper driver
(3) Supply voltage: 1 = DC24-70V, 2 = DC24-50V, 3 = DC24-36V
(4) Communication: A = pulse, B = RS485 Modbus, C = CAN, D = other
(5) Manufacturer customization
Typical applications
3C electronics manufacturing: pick-and-place machines, dispensing machines, screw-fastening machines
Laser processing: laser marking machines, laser cutting machine X-Y platforms
Engraving machines / CNC: woodworking, stone and advertising engraving
Automated production lines: loading/unloading manipulators, conveyor belt positioning
AGV / AMR: hub motor drive and lifting mechanisms
Medical equipment: infusion pumps, pipetting platforms
| Customized projects | Explanation |
|---|---|
| Firmware customization | Acceleration/deceleration curves, alarm logic, self-tuning strategies, non-standard communication protocols |
| Interface customization | Custom I/O definitions, terminal specifications and wiring sequence |
| Enclosure customization | PCB size, shell shape and heat dissipation solution |
| Brand customization | OEM for panel printing, labels, packaging, manuals and host commissioning software |
Downloads
Frequently Asked Questions (FAQ)
Which control modes does the SD5 stepper driver support?
The SD5 supports pulse+direction, RS485 (Modbus-RTU) and CANopen simultaneously, so it can be paired flexibly with PLCs, motion controllers and other host devices.
Which stepper motors is the SD5 compatible with?
It drives 42, 57 and 86 frame two-phase stepper motors. Motor inductance and resistance are identified automatically at power-up, so no manual configuration is required.
What is the maximum microstepping of the SD5?
Up to 256 microsteps, i.e. 51,200 microsteps per revolution on a 1.8° motor, delivering smooth and quiet low-speed motion for high-precision positioning.
What are the supply voltage and current ranges of the SD5?
Wide-range DC 24–72 V power supply with an adjustable peak output current of 0.5–8 A.
Does Zhiliang Motion Control support OEM branding and customization for the SD5?
Yes. From the in-house DSP firmware to host protocols, the firmware, interfaces, enclosure form factor and branding can all be customized on request.
Open-loop or closed-loop stepper drive? Choose by application
The SD5 is an open-loop two-phase stepper driver for 42 / 57 / 86 frame two-phase stepper motors, with a peak output current of 0.5 A - 8 A and a DC 24 V - 72 V supply. An open-loop stepper driver is simple, low cost and quick to commission, which makes it the best value on low-to-medium speed axes with stable loads and intermittent motion, such as laser engraving, 3D printing and plotters.
When selecting a two-phase stepper driver, confirm three things: the frame size and phase current fall inside the driver output range; the control method matches your host controller - the SD5 supports Pulse+Direction, RS485 (Modbus-RTU) and CANopen; and whether finer microstepping is needed for smooth low-speed running, up to 256 microsteps (51,200 microsteps per revolution).
If the load inertia is high, starts and stops are frequent, or a single missed step would scrap the part (cutting, engraving, dispensing), choose the closed-loop SD6 closed loop stepper motor driver instead. If you want to edit motion paths inside the drive and remove the PLC, look at the SDC integrated stepper drive.