MKS SERVO42C Closed-Loop Stepper Motor Controller Nema 17
MKS SERVO42C Closed-Loop Stepper Motor Controller Nema 17
MKS SERVO42C PCBA Closed-Loop Stepper Motor Controller for Nema 17
Take full command of your stepper motor projects with the MKS SERVO42C V1.0 PCBA Controller. This compact, high-performance closed-loop servo controller board combines a 14-bit magnetic encoder with ARM Cortex-M0+ processing power to deliver precise position, speed, and torque control — eliminating missed steps and keeping your motion systems running smoothly at up to 1000 RPM.
Whether you're building a 3D printer, CNC router, or automation rig, the SERVO42C's Field-Oriented Control (FOC) algorithm means low noise, minimal vibration, and reduced heat generation — even under demanding loads.
Made in Mainland China.
Key Features
- Closed-Loop Control: Position, speed, and torque loops run simultaneously — no more lost steps at high speed.
- 14-Bit Magnetic Encoder: Ultra-fine angle resolution of just 0.08° for highly accurate positioning.
- Field-Oriented Control (FOC): Delivers low noise, low vibration, and low heat output.
- 4 Half-Bridge Driver with 8 MOSFETs: High operating efficiency across the full current range.
- Wide Input Voltage: Compatible with 7V–28V power supplies.
- Broad Microstepping Support: 1–256 subdivision (default 16), including odd subdivisions (e.g. 11).
- High Update Frequency: Position & velocity loops at 10 kHz; torque loop at 20 kHz.
- USART Serial Interface: Connect to a PC via serial port for easy parameter adjustment and monitoring.
- Motor Compatibility: Supports Nema 17 motors with 0.9° or 1.8° step angles.
- 3D Printing Ready: Supports maximum printing speeds of 150–180 mm/s.
Specifications
| Board Type | MKS SERVO42C V1.0 |
| Microprocessor | ARM Cortex-M0+ |
| Motor Driver | 4 Half-Bridge with 8 MOSFETs |
| Input Voltage | 7V – 28V |
| Encoder | 14-Bit Magnetic Encoder |
| Adjustable Current | 0 – 3000 mA |
| Subdivision | 1 – 256 (Default: 16) |
| Maximum Speed | 1000 RPM |
| Angle Resolution | 0.08° |
| Update Frequency | Position 10 kHz / Velocity 10 kHz / Torque 20 kHz |
| PCBA Size | ~39 × 35.8 mm (1.54 × 1.41 in) |
Package Contents
- 1 × MKS SERVO42C V1.0 Closed-Loop Stepper Motor Controller PCBA
Related Products You May Like
- 1/2" Drive 8-Piece Hex Short Socket Set – Vanadium Steel
- 10-Pc Hex Nut & Bolt Extractor Kit 9–19mm | HIP Tools
- 10-Piece Gardening Tool Kit – Iron Head & Plastic Handle
Learn more: OSHA guidance on hand and power tools
Frequently Asked Questions
Q: What stepper motors is the MKS SERVO42C compatible with?
A: The MKS SERVO42C closed-loop controller is designed for Nema 17 stepper motors with either a 0.9° or 1.8° step angle, making it widely compatible with most 3D printer and CNC machine motors.
Q: Does the MKS SERVO42C work for 3D printing applications?
A: Yes. The SERVO42C supports maximum 3D printing speeds of 150–180 mm/s. Its closed-loop feedback ensures no missed steps, resulting in more reliable, higher-quality prints, especially at elevated speeds.
Q: How do I configure the MKS SERVO42C controller?
A: The board features a USART serial interface, allowing you to connect it to a PC via a serial port for full parameter adjustment and real-time status queries. Microstepping subdivision (1–256) and other settings can be configured via this interface.
Q: What input voltage range does this controller support?
A: The MKS SERVO42C accepts a wide input voltage range of 7V to 28V, giving it broad compatibility with common power supplies used in 3D printers and CNC systems.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.