STMP57-M (With Brake) Integrated Waterproof Stepper Servo Motor
Built-in Brake w/ Logic, IP65-rated 57mm flange integrated stepper servo motor – delivers closed-loop servo control algorithms within a compact footprint, offering significantly improved positioning accuracy, low heat generation, and excellent speed stability. Ideal for a wide range of compact automation equipment.
Features
- IP65 protection
- EtherCAT/CANopen/RS485
- Optional brake
Models & Specifications
| Specifications | STMP5756B-485-M-0FSB | STMP5756B-CANopen-M-0FSB | STMP5756B-COE-M-0FSB | STMP5756D-485-M-0FSB | STMP5756D-CANopen-M-0FSB | STMP5756D-COE-M-0FSB | STMP5776B-485-M-0FSB | STMP5776B-CANopen-M-0FSB | STMP5776B-COE-M-0FSB | STMP5776D-485-M-0FSB | STMP5776D-CANopen-M-0FSB | STMP5776D-COE-M-0FSB |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Flange Size | 57mm | 57mm | 57mm | 57mm | 57mm | 57mm | 57mm | 57mm | 57mm | 57mm | 57mm | 57mm |
| Brake | Built-in Brake w/ Logic | Built-in Brake w/ Logic | Built-in Brake w/ Logic | Built-in Brake w/ Logic | Built-in Brake w/ Logic | Built-in Brake w/ Logic | Built-in Brake w/ Logic | Built-in Brake w/ Logic | Built-in Brake w/ Logic | Built-in Brake w/ Logic | Built-in Brake w/ Logic | Built-in Brake w/ Logic |
| Encoder type | 17-bit single-turn absolute magnetic encoder | 17-bit single-turn absolute magnetic encoder | 17-bit single-turn absolute magnetic encoder | 17-bit multi-turn absolute magnetic encoder | 17-bit multi-turn absolute magnetic encoder | 17-bit multi-turn absolute magnetic encoder | 17-bit single-turn absolute magnetic encoder | 17-bit single-turn absolute magnetic encoder | 17-bit single-turn absolute magnetic encoder | 17-bit multi-turn absolute magnetic encoder | 17-bit multi-turn absolute magnetic encoder | 17-bit multi-turn absolute magnetic 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 | 16-52VDC | 16-52VDC | 16-52VDC | 16-52VDC | 16-52VDC | 16-52VDC | 16-52VDC | 16-52VDC | 16-52VDC | 16-52VDC | 16-52VDC | 16-52VDC |
| Protection Level | IP65 | IP65 | IP65 | IP65 | IP65 | IP65 | IP65 | IP65 | IP65 | IP65 | IP65 | IP65 |
| Rated Current | 3.0 A | 3.0 A | 3.0 A | 3.0 A | 3.0 A | 3.0 A | 4.2 A | 4.2 A | 4.2 A | 4.2 A | 4.2 A | 4.2 A |
| Body Length | 111.5 mm | 111.5 mm | 111.5 mm | 111.5 mm | 111.5 mm | 111.5 mm | 131.5 mm | 131.5 mm | 131.5 mm | 131.5 mm | 131.5 mm | 131.5 mm |
| Weight | 1.18 kg | 1.18 kg | 1.18 kg | 1.18 kg | 1.18 kg | 1.18 kg | 1.54 kg | 1.54 kg | 1.54 kg | 1.54 kg | 1.54 kg | 1.54 kg |
* Scroll horizontally within the table area when the content is wide.
Specifications
| Shaft Diameter | Φ8 |
| Number Of Phases | 2 |
| Step Angle | 1.8° |
| Encoder | B: 17-bit single-turn absolute magnetic encoder D: 17-bit multi-turn absolute magnetic encoder |
| Control Modes | CiA402 Mode,Manufacturer Mode |
| External Control Interface | DI – Non-isolated NPN Input,DI – Non-isolated PNP Input,DI – Non-isolated Switch Input,DI – Isolated Opto Single-Ended Input,DI – Isolated Opto Differential Input |
| CiA402 Mode | PP, VM, PV, PT, HM, IP, CSP, CSV, CST |
| DI (Digital Input) | EtherCAT communication: Quantity: 3; Non-isolated; Supports NPN and PNP; High level: 5–24V, low level: 0–0.5V; Maximum current: 8.3mA at 24V; Configurable function: Can be used as a switch. CANopen and RS485 communication: Quantity: 3; Bidirectional high-speed isolated inputs support NPN, PNP, and push-pull input (sensors); High level: 12–24V, low level: 0–0.5V; Maximum current: 8.5mA at 24V; Configurable functions: Can be used as a switch or as a pulse input channel. |
| DO (Digital Output) | EtherCAT communication: Quantity: 2; Output method: open-drain output; DO maximum load current: 500mA, maximum voltage: 52V. CANopen and RS485 communication (customizable): Quantity: 1; Output method: open-drain output; DO maximum load current: 500mA, maximum voltage: 52V. |
| AI (Analog Input) | Quantity: 1; Input method: single-ended input; Signal type: voltage signal; Resolution: 12-bit; Voltage: 0~10V; Accuracy: reference error ≤1%; Configurable functions: dead zone, filtering, offset, scaling, direction. |
| Operating Temperature | 0°C to 40°C |
| Operating Altitude | <1000m |
| Fault Alarm | Overvoltage, undervoltage, overtemperature, locked rotor |
| Servo Function | Soft limit, gain switching, S-curve planning, vibration suppression, parameter identification, online upgrade |
Torque-Speed Characteristics
STMP5756X-XX-B
STMP5776X-XX-B
Product Details
The STMP57 series integrated waterproof stepper servo motor is a highly integrated integrated permanent magnet synchronous motor developed by NiMotion, with 17-bit single-turn/multi-turn absolute encoder, IP65 protection level, controller and digital I/O. It is suitable for all kinds of equipment in harsh environments and water-related application scenarios. Support EtherCAT, RS485, CANopen bus communication.
Product Features
Voltage range (VDC) Rated voltage (VDC) Rated current (A) Partial model Step angle (°) Fuselage length X (mm) Shaft diameter holding torque
IP65 protection class
(Optional) Built-in 17-bit single-turn/multi-turn absolute encoder
EtherCAT Version
Highly integrated design
Integrates Stepper Motors, Single/Multi-turn Absolute Encoders, Drives and Digital IO 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.
Advanced Drive Algorithm
Adopts FOC (field-oriented control) and SVPWM for smooth torque output, excellent low-speed performance and lower operating noise and vibration.
High Precision Encoder Feedback
Built-in B: 17-bit single-cycle absolute encoder/D: 17-bit multi-cycle absolute encoder provides real-time position and speed feedback for more accurate closed-loop control; multi-turn absolute counting and automatic position storage on power loss mean no re-homing is needed after power-up.
Multi-bus communication support
Supports EtherCAT, 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 torque mode, ensuring compatibility with mainstream fieldbus motion-control architectures and making replacement and commissioning easier.
Wide Voltage Input
Wide input voltage range of 16-52 VDC, suitable for various power-supply environments and giving greater flexibility in system integration and retrofitting.
Overall dimensions
Base width: 57mm; "X" represents the body length. Please click the "Downloads" section below to view detailed drawings.
Downloads
Companion Products
FAQ
The positional accuracy of a stepper motor is about 3‑5% of the step angle, and it does not accumulate errors.
Microstepping is essentially an electronic damping technique, primarily designed to reduce or eliminate low‑frequency vibration. Improved positional resolution is a secondary benefit. Different manufacturers’ microstepping drivers can vary greatly in accuracy, and higher microstepping numbers are harder to control precisely.
This is due to the motor’s pull‑in rate – the maximum pulse frequency at which it can start from standstill without losing steps. If the pulse frequency exceeds this rate, the motor cannot start properly and may lose steps or stall. The solution is to use an acceleration ramp: start at a low frequency and gradually increase to the target high frequency. Integrated stepper motors allow you to set acceleration and deceleration parameters freely.
When the motor rotates, the inductance in each phase winding generates a back‑EMF. The higher the frequency, the greater the back‑EMF, which reduces the phase current and thus lowers the torque.
Excessive temperature can demagnetise the magnetic material, reducing torque and causing step loss. The demagnetisation point is generally above 130°C, some up to 200°C. Therefore, a surface temperature of 80‑90°C is perfectly normal for a stepper motor. The most common insulation class is Class B, with a rated operating temperature up to 130°C.
Applications
Discover how this product is applied across various industrial automation scenarios.
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Technical Resources
Technical guides, application notes, and more to help you get the most out of the product.
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