STM42 (Closed-Loop) Integrated Stepper Motor
42mm flange integrated stepper motor – seamlessly combines stepper motor, driver, controller, and I/O interfaces into a single unit. Reduces wiring, lowers failure points, ensures stable motion, and is suitable for a wide range of compact automation equipment.
Features
- CAN/CANopen/RS485
- 14-bit encoder for closed-loop
- Supports DI and DO Control
Models & Specifications
| Specifications | STM4228A-CAN-0FS | STM4228A-CANopen-0FS | STM4228A-485-0FS | STM4228A-232-0FS | STM4234A-CAN-0FS | STM4234A-CANopen-0FS | STM4234A-485-0FS | STM4234A-232-0FS | STM4240A-CAN-0FS | STM4240A-CANopen-0FS | STM4240A-485-0FS | STM4240A-232-0FS | STM4248A-CAN-0FS | STM4248A-CANopen-0FS | STM4248A-485-0FS | STM4248A-232-0FS | STM4260A-CAN-0FS | STM4260A-CANopen-0FS | STM4260A-485-0FS | STM4260A-232-0FS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Flange Size | 42mm | 42mm | 42mm | 42mm | 42mm | 42mm | 42mm | 42mm | 42mm | 42mm | 42mm | 42mm | 42mm | 42mm | 42mm | 42mm | 42mm | 42mm | 42mm | 42mm |
| Holding Torque | 0.12 N·m | 0.12 N·m | 0.12 N·m | 0.12 N·m | 0.28 N·m | 0.28 N·m | 0.28 N·m | 0.28 N·m | 0.40 N·m | 0.40 N·m | 0.40 N·m | 0.40 N·m | 0.50 N·m | 0.50 N·m | 0.50 N·m | 0.50 N·m | 0.70 N·m | 0.70 N·m | 0.70 N·m | 0.70 N·m |
| Brake | No Brake | No Brake | No Brake | No Brake | No Brake | No Brake | No Brake | No Brake | No Brake | No Brake | No Brake | No Brake | No Brake | No Brake | No Brake | No Brake | No Brake | No Brake | No Brake | No Brake |
| Open-Loop/Closed-Loop | Closed-loop | Closed-loop | Closed-loop | Closed-loop | Closed-loop | Closed-loop | Closed-loop | Closed-loop | Closed-loop | Closed-loop | Closed-loop | Closed-loop | Closed-loop | Closed-loop | Closed-loop | Closed-loop | Closed-loop | Closed-loop | Closed-loop | Closed-loop |
| Encoder Type | 14-bit single-turn absolute magnetic encoder | 14-bit single-turn absolute magnetic encoder | 14-bit single-turn absolute magnetic encoder | 14-bit single-turn absolute magnetic encoder | 14-bit single-turn absolute magnetic encoder | 14-bit single-turn absolute magnetic encoder | 14-bit single-turn absolute magnetic encoder | 14-bit single-turn absolute magnetic encoder | 14-bit single-turn absolute magnetic encoder | 14-bit single-turn absolute magnetic encoder | 14-bit single-turn absolute magnetic encoder | 14-bit single-turn absolute magnetic encoder | 14-bit single-turn absolute magnetic encoder | 14-bit single-turn absolute magnetic encoder | 14-bit single-turn absolute magnetic encoder | 14-bit single-turn absolute magnetic encoder | 14-bit single-turn absolute magnetic encoder | 14-bit single-turn absolute magnetic encoder | 14-bit single-turn absolute magnetic encoder | 14-bit single-turn absolute magnetic encoder |
| Rated Voltage | 24 VDC | 24 VDC | 24 VDC | 24 VDC | 24 VDC | 24 VDC | 24 VDC | 24 VDC | 24 VDC | 24 VDC | 24 VDC | 24 VDC | 24 VDC | 24 VDC | 24 VDC | 24 VDC | 24 VDC | 24 VDC | 24 VDC | 24 VDC |
| Voltage Range | 12-30VDC | 12-30VDC | 12-30VDC | 12-30VDC | 12-30VDC | 12-30VDC | 12-30VDC | 12-30VDC | 12-30VDC | 12-30VDC | 12-30VDC | 12-30VDC | 12-30VDC | 12-30VDC | 12-30VDC | 12-30VDC | 12-30VDC | 12-30VDC | 12-30VDC | 12-30VDC |
| Rated Current | 0.6 A | 0.6 A | 0.6 A | 0.6 A | 1.3 A | 1.3 A | 1.3 A | 1.3 A | 1.7 A | 1.7 A | 1.7 A | 1.7 A | 1.7 A | 1.7 A | 1.7 A | 1.7 A | 2.0 A | 2.0 A | 2.0 A | 2.0 A |
| Inertia | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Body Length | 48.5 mm | 48.5 mm | 48.5 mm | 48.5 mm | 52.5 mm | 52.5 mm | 52.5 mm | 52.5 mm | 58.5 mm | 58.5 mm | 58.5 mm | 58.5 mm | 66.5 mm | 66.5 mm | 66.5 mm | 66.5 mm | 78.5 mm | 78.5 mm | 78.5 mm | 78.5 mm |
| Weight | 0.12 kg | 0.12 kg | 0.12 kg | 0.12 kg | 0.27 kg | 0.27 kg | 0.27 kg | 0.27 kg | 0.33 kg | 0.33 kg | 0.33 kg | 0.33 kg | 0.41 kg | 0.41 kg | 0.41 kg | 0.41 kg | 0.52 kg | 0.52 kg | 0.52 kg | 0.52 kg |
* Scroll horizontally within the table area when the content is wide.
Specifications
| Shaft Diameter | Φ5 |
| Number Of Phases | 2 |
| Step Angle | 1.8° |
| Encoder Introduction | 14-bit absolute magnetic encoder for closed-loop models(Open-loop version without encoder) |
| Subdivision | 1,2,4,8,16 |
| Control Modes | CiA402 Mode,Manufacturer Mode,Position Mode,Velocity Mode,Homing Mode |
| External Control Interface | DI – Non-isolated NPN Input,DI – Non-isolated Switch Input,DO – Isolated Open-Drain Output,DO – Non-isolated MOSFET Output |
| CiA402 Mode | PP、VM、PV、HM、IP、CSP、CSV(via CANopen communication) |
| DI (Digital Input) | Quantity 3; Not isolated; Level input, passive contact input; Logic 1 signal: 3~3.3VDC; Logical 0 signal: 0~0.5VDC) |
| DO (Digital Output) | - |
| DX (Digital Input / Output) | Quantity 2; Not isolated; You can set it to DI or DO. High power usually 3 ~ 3.3V, low power usually 0 ~ 0.5V |
| AI (Analog Input) | - |
| Operating Temperature | 0°C to 40°C |
| Operating Altitude | <1000m |
| Fault Alarm | Overvoltage, undervoltage, overheat, locked rotor |
Torque-Speed Characteristics
STM4228(A)-CANopen-XX
STM4234(A)-CANopen-XX
STM4240(A)-CANopen-XX
STM4248(A)-CANopen-XX
STM4260(A)-CANopen-XX
Product Details
The STM42 series of integrated stepper motors is a stepper product independently developed by NiMotion. Leveraging its excellent closed-loop control system and integrated design concept, it combines stepper motors, encoders and drivers into one unit. It supports bus communication control with compact size and simplified cabling.
Product Features
Highly integrated design
All-in-one design deeply integrating the motor body with the drive and encoder, giving a compact body, simple wiring and easier machine integration.
High Precision Encoder Feedback
Built-in 14-bit high-resolution absolute encoder (closed-loop support) provides real-time position and speed feedback for more accurate closed-loop control, ensuring smoother operation and more accurate positioning.
Multi-bus communication support
Supports CANopen and RS485 communication, allowing quick connection to mainstream PLCs, motion controllers and host systems, with flexible networking and easy expansion.
Standard CiA 402 Sport Mode
Supports CiA 402 standard motion modes (PP, PV, HM, CSP, CSV, etc.) as well as position mode, velocity mode and homing mode, ensuring compatibility with mainstream fieldbus motion-control architectures and making replacement and commissioning easier.
Wide Voltage Input
Wide input voltage range of 12 ~30VDC, suitable for various power-supply environments and giving greater flexibility in system integration and retrofitting.
Segment can be set
Micro-stepping setting of 1、2、4、8、16 steps selectable effectively reduces low-speed vibration and noise and improves positioning resolution and smoothness.
Overall Dimensions
Base width: 42mm, X represents the body length. Please click the "Download" section below to view detailed drawings.
Application in AGV Equipment
This integrated Stepper motor series is applicable to AGV drive wheels, steering actuators, lifting platforms, and fork positioning mechanisms. Its compact integrated design saves vehicle space, leaving more room for batteries and cargo. Built-in encoder enables full closed-loop control, adapting to floor irregularities and load variations. Multiple communication protocols are supported for compatibility with various navigation systems.
Downloads
Companion Products
USB to CAN converter with isolation, IP65 protection, and secondary development SDK support.
USB to RS485 converter with active termination, isolation, IP65 protection, and secondary development SDK support.
Communication cable for NiMotion integrated motors.
