Stepper motor 86BH122RS65IM

18 V70 Vwith integrated driver and coder

Product summary
The 86BH122RS65IM is an 86 mm integrated stepper servo with RS485 communication, 6.5 N·m maximum output torque and battery-free multi-turn absolute feedback. It combines motor, drive and encoder in one compact unit for machine axes that require position retention and simplified commissioning.

Key highlights

• 6.5 N·m maximum output torque
• RS485 communication interface
• Battery-free multi-turn absolute feedback (fixed range −100 to +1499 turns)
• Position retention within the stated feedback range after power loss
• 86 mm frame (NEMA 34) integrated servo architecture

Quick specs

• Frame size: 86 mm (NEMA 34)
• Integrated body length: 122.1 mm
• Max output torque: 6.5 N·m
• Input voltage: 18–70 VAC
• Communication: RS485
• Encoder feedback: 4096 lines (16,384 counts)

Integrated servo overview
Model No.: 86BH122RS65IM
Frame size: 86 mm (NEMA 34)
Integrated body length: 122.1 mm
L size: 97.6 mm
Shaft diameter: 14 mm
Input voltage range: 18–70 VAC
Maximum output torque: 6.5 N·m
Communication: RS485

Electrical, feedback & configuration

• Current setting: 0.2–3.2 A software-adjustable; factory-matched motor current: 6.0 A
• Encoder feedback: 4096 lines (16,384 counts)
• Phase resistance: 0.45 Ω ±20%
• Phase inductance: 4.0 mH ±20%
• Rotor inertia: approx. 2800 g·cm²
• Weight: approx. 3.0 kg
• Microstep setting: host-configurable; positive integer above 200; factory default 4000
• Address setting: factory default 1; start address adjustable by host software
• Multi-turn feedback: 1,599-turn battery-free multi-turn feedback; fixed range −100 to +1499 turns
• Protections: over-voltage, under-voltage, over-current, winding open circuit, 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

Mechanical drawing
Mechanical drawing and mounting dimensions are available on the product page for integration and panel/machine design.

Technical specifications

• Model: 86BH122RS65IM
• Frame size: 86 mm (NEMA 34)
• Integrated body length: 122.1 mm
• L size: 97.6 mm
• Shaft diameter: 14 mm
• Max output torque: 6.5 N·m
• Input voltage range: 18–70 VAC
• Communication interface: RS485
• Encoder: 4096 lines (16,384 counts)
• Multi-turn feedback: battery-free, 1,599-turn (fixed range −100 to +1499 turns)
• Current setting range: 0.2–3.2 A (software-adjustable); factory-matched motor current: 6.0 A
• Phase resistance: 0.45 Ω ±20%
• Phase inductance: 4.0 mH ±20%
• Rotor inertia: approx. 2800 g·cm²
• Weight: approx. 3.0 kg
• Microstep setting: host-configurable; factory default 4000
• Address setting: factory default 1; adjustable by host software
• Protections: over-voltage, under-voltage, over-current, winding open circuit, position deviation
• Non-volatile storage: parameters stored in internal MCU FLASH
• Operating temperature: 0°C to +40°C
• Operating humidity: 20% RH to 90% RH