Oriental Motor AZM66AK Product Overview
The Oriental Motor AZM66AK is a high-torque, NEMA 24 closed-loop stepper motor belonging to the advanced αSTEP AZ Series. Built with a 60 mm (2.36 in.) square flange frame size, this DC-input component motor features a single round shaft with a flat and is equipped with a patented mechanical absolute encoder (ABZO). It is engineered for precision industrial motion control systems requiring high speed-torque stability, battery-free coordinate tracking, and high environmental resistance.
Key Technical Specifications
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Motor Type: αSTEP «Step-Servo» Closed-Loop Stepper Motor
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Frame Size: 60 mm (2.36 in.) NEMA 24
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Driver Input Power Compatibility: DC Input (24/48 VDC Drivers)
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Shaft Configuration: Single Shaft (Round Shaft with Flat)
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Holding Torque: 1 N·m (142 oz-in)
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Feedback System: Battery-free Mechanical Absolute ABZO Encoder
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Basic Step Angle: 0.36° (at 1000 P/R resolution setting)
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Degree of Protection: IP66 (excluding mounting surface and connector)
Battery-Free ABZO Mechanical Absolute Tracking
The AZM66AK motor incorporates Oriental Motor’s unique, multi-turn mechanical encoder technology. Unlike optical encoders that depend on a continuous back-up battery or external limit switches to log coordinate positioning, the ABZO tracking sensor relies on a multi-stage mechanical gear framework. Position data is permanently preserved across a range of ±900 shaft rotations, completely eliminating time-consuming return-to-home sequence cycles after emergency plant power outages or main cable disconnections.
Closed-Loop Reliability with Zero Hunting
Designed to operate in combination with an αSTEP AZ Series DC driver, the AZM66AK employs a hybrid tracking control method. Under standard load conditions, the motor steps synchronously with open-loop responsiveness to ensure smooth, high-speed movement without gain tuning. If a sudden overload or positional displacement is encountered, the driver instantaneously switches to closed-loop correction mode. When stopped, the motor relies on its stable holding torque without micro-hunting vibrations, making it an excellent match for low-rigidity assemblies, belt drives, and index tables.
