AZ Series - Servo-controlled stepper motor with battery-less absolute encoder

Closed-loop precision with battery-free absolute positioning.

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