Stepper motor 28BH55EC008IE

36 Vwith integrated driver and coderNEMA 11

Overview
The 28BH55EC008IE is a compact 28 mm (NEMA 11) integrated stepper servo combining motor, drive and encoder in a single housing. Designed for compact positioning, transfer and packaging modules, it provides EtherCAT and TTL interfaces and high-resolution encoder feedback to simplify wiring and control.

Key Highlights

• 28 mm (NEMA 11) integrated motor, drive and encoder
• Input voltage 9–36 VDC with maximum output torque 0.065 N·m
• EtherCAT and TTL communication interfaces
• 4096-line / 16,384-count encoder for precise position feedback
• Internal FLASH stores configuration parameters

Summary Specifications
Frame Size: 28 mm; Integrated Body Length: 54.9 mm; Maximum Output Torque: 0.065 N·m; Input Voltage Range: 9–36 VDC; Communication: EtherCAT, TTL; Encoder Feedback: 4096 lines (16,384 counts)

Product Datasheet
Model No.: 28BH55EC008IE

Technical specifications

• Model No.: 28BH55EC008IE
• Frame Size: 28 mm (NEMA 11)
• Integrated Body Length: 54.9 mm
• L Size: 32.2 mm
• Shaft Diameter: 5 mm
• Input Voltage Range: 9–36 VDC
• Maximum Output Torque: 0.065 N·m
• Current Setting: 0.2–3.2 A software adjustable; factory‑matched motor: 1.0 A
• Communication: EtherCAT, TTL
• Encoder Feedback: 4096 lines (16,384 counts)
• Phase Resistance: 2.1 Ω ±20%
• Phase Inductance: 2.1 mH ±20%
• Rotor Inertia: Approx. 9 g·cm²
• Weight: Approx. 0.16 kg
• Microstep Setting: Factory default 10,000; object index 0x2001
• Address Setting: Start address from source; automatically allocated by master
• Protection: Over‑voltage, under‑voltage, over‑current, winding open circuit and position deviation
• Non‑volatile Storage: Configuration parameters stored in internal MCU FLASH
• Operating Temperature: 0°C to +40°C
• Operating Humidity: 20% RH to 90% RH
• TTL Serial Settings: 115200 bps; 8 data bits; 1 stop bit; no parity
• Mechanical drawing and product diagram available