STM86 (Open-Loop) Integrated Stepper Motor
86mm 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 small to medium automation equipment.
Features
- CAN/CANopen/RS485
- 14-bit encoder for closed-loop control
- Supports DI and DO control
Models & Specifications
| Specifications | STM8665-CAN-0HS | STM8665-CANopen-0HS | STM8665-485-0HS | STM8680-CAN-0HS | STM8680-CANopen-0HS | STM8680-485-0HS | STM86B8-CAN-0HS | STM86B8-CANopen-0HS | STM86B8-485-0HS | STM86F6-CAN-0HS | STM86F6-CANopen-0HS | STM86F6-485-0HS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Flange Size | 86mm | 86mm | 86mm | 86mm | 86mm | 86mm | 86mm | 86mm | 86mm | 86mm | 86mm | 86mm |
| 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 | Open-loop | Open-loop | Open-loop | Open-loop | Open-loop | Open-loop | Open-loop | Open-loop | Open-loop | Open-loop | Open-loop | Open-loop |
| Encoder Type | No Encoder | No Encoder | No Encoder | No Encoder | No Encoder | No Encoder | No Encoder | No Encoder | No Encoder | No Encoder | No Encoder | No Encoder |
| Rated Voltage | 48 VDC | 48 VDC | 48 VDC | 48 VDC | 48 VDC | 48 VDC | 48 VDC | 48 VDC | 48 VDC | 48 VDC | 48 VDC | 48 VDC |
| Voltage Range | 10-60VDC | 10-60VDC | 10-60VDC | 10-60VDC | 10-60VDC | 10-60VDC | 10-60VDC | 10-60VDC | 10-60VDC | 10-60VDC | 10-60VDC | 10-60VDC |
| Rated Current | 6.0 A | 6.0 A | 6.0 A | 5.5 A | 5.5 A | 5.5 A | 6.0 A | 6.0 A | 6.0 A | 6.2 A | 6.2 A | 6.2 A |
| Inertia | 0.94×10^-4 kg·m² | 0.94×10^-4 kg·m² | 0.94×10^-4 kg·m² | 1.40×10^-4 kg·m² | 1.40×10^-4 kg·m² | 1.40×10^-4 kg·m² | 2.50×10^-4 kg·m² | 2.50×10^-4 kg·m² | 2.50×10^-4 kg·m² | 3.10×10^-4 kg·m² | 3.10×10^-4 kg·m² | 3.10×10^-4 kg·m² |
| Body Length | 85 mm | 85 mm | 85 mm | 100 mm | 100 mm | 100 mm | 138 mm | 138 mm | 138 mm | 176 mm | 176 mm | 176 mm |
| Weight | 1.70 kg | 1.70 kg | 1.70 kg | 2.40 kg | 2.40 kg | 2.40 kg | 3.80 kg | 3.80 kg | 3.80 kg | 5.30 kg | 5.30 kg | 5.30 kg |
* Scroll horizontally within the table area when the content is wide.
Specifications
| Shaft Diameter | Φ14 |
| Number Of Phases | 2 |
| Step Angle | 1.8° |
| Encoder Introduction | No 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、VM、IP、HM、CSP、CSV (CANopen communication) |
| DI (Digital Input) | Quantity 3; Not isolated; High level: 3-3.3V; Low level: 0~0.5V,Channel type: level input, passive contact input |
| DO (Digital Output) | - |
| DX (Digital Input / Output) | Quantity: 2; No isolation; Configurable as DI or DO via parameters; DO load maximum current: 8mA; High level: 3–3.3V; Low level: 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
STM8665(A)- CANopen/CAN/485-XXX
STM8680(A)- CANopen/CAN/485-XXX
STM86B8(A)- CANopen/CAN/485-XXX
STM86F6(A)- CANopen/CAN/485-XXX
Product Details
The STM86 series integrated stepper motor is a high-performance, low-power stepper product independently developed by NiMotion. Based on the excellent closed-loop control system and the integrated design concept, this product integrates the stepper motor, encoder, driver and digital I/O into one, supports communication bus control, and has the characteristics of compact structure and simple wiring.
Product Features
Highly integrated design
Integrates Stepper motors, encoders, drives and digital I/O into a single compact unit, so no external drive is required. Compared with conventional separated solutions it saves considerable installation space, needs less wiring, and makes commissioning and maintenance easier.
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 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 and velocity mode, ensuring compatibility with mainstream fieldbus motion-control architectures and making replacement and commissioning easier.
Wide Voltage Input
Wide input voltage range of 10-60VDC, 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: 86mm, X represents the body length. Please click the "Download" section below to view detailed drawings.
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.
FAQ
Yes. The servo controller can detect external load variations and, when a set resistance is encountered, can execute actions such as stopping, returning, or maintaining a certain thrust. This is a key advantage of closed‑loop servo control.
With an incremental encoder driver, the actual position value is not retained after power‑off; a homing routine is required on each startup. A single‑turn absolute encoder retains the position without a battery (but if the shaft rotates more than half a turn after power‑off, the position is lost). A multi‑turn absolute encoder retains the position without a battery (but if the shaft rotates more than 2048 turns after power‑off, the position is lost).
Applications
Discover how this product is applied across various industrial automation scenarios.
Compatible Products
Build complete and reliable solutions with our compatible products.
Technical Resources
Technical guides, application notes, and more to help you get the most out of the product.
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