AZ Series – Hybrid Stepper Motors with Mechanical Absolute Encoder
The AZ Series combines hybrid stepper motor technology with a built-in, battery-free mechanical multi-turn absolute encoder (ABZO sensor). This enables absolute positioning over ±900 (or ±1,800) revolutions without the need for external sensors. Motors run open-loop under normal operation for smooth, vibration-free motion and switch automatically to closed-loop control under load changes to ensure reliable positioning without loss of synchronism.
Key Features
• Integrated STO function for AC and DC input voltage drivers (depending on model)
• Battery-free mechanical multi-turn absolute encoder (ABZO) integrated as standard
• Absolute positioning range: ±900 (standard) or ±1,800 (extended) revolutions
• Open-loop operation for quiet running; closed-loop engagement for overload conditions
• Frame sizes: 20 mm, 28 mm, 42 mm, 60 mm, and 90 mm
• Gearhead options: spur gearheads, planetary gearheads, Harmonic Drive®
• Wide variety of actuators available: linear actuators, rotary actuators, grippers, and more
• Control flexibility: pulse-direction input, digital I/O, or fieldbus communication (EtherCAT, EtherNet/IP, PROFINET, Modbus RTU)
• Integrated monitoring and diagnostic functions for reliable system operation
• Optional electromagnetic brake for holding loads in vertical applications
