Core Product Overview
| Attribute | Details |
| Product Model | B&R X20SM1426 |
| Product Type | Stepper Motor Control Module |
| Manufacturer | B&R Industrial Automation GmbH |
| Target System | B&R X20 Automation System |
| Key Application | Precision positioning, conveyor control, automated assembly, and industrial robotics |
Description:The B&R X20SM1426 is a high-performance stepper motor control module under the X20
system portfolio, engineered for precise 24 VDC stepper motor operation in industrial automation
applications. It integrates advanced features such as motor detection, stall protection, configurable
currents, and NetTime synchronization, making it ideal for tasks requiring accurate positioning,
dynamic motion control, and reliable field device integration. Below is a structured, visually refined
breakdown of its core specifications, functional features, and technical details.
Physical & Environmental Specifications
| Specification | Details |
| Mechanical | - Mounting: Horizontal (vertical mounting not permitted) - Pitch: 12.5 ±0.2 mm - Required Accessories: X20TB12 (12-pin terminal block), X20BM11/X20BM15 (bus module) |
| Environmental Conditions | - Operating Temperature: -25 to 60°C (Rev. > E6); 0 to 55°C (Rev. ≤ E6) - Storage/Transport Temperature: -25 to 70°C - Relative Humidity: 5–95% (non-condensing) - Altitude: 0–2000 m (no limitation); >2000 m (0.5°C reduction per 100 m) - Protection Rating: IP20 (per EN 60529) |
| Derating Requirements | - Neighboring modules: Max 1 W power dissipation (derate above 45°C for full-load operation) - Multiple SM modules (3+ in cluster): Current derating starts at 40°C |
Technical data
![X20SM1426(1)]()
![X20SM1426(2)]()
