Oriental Motor AZM66MC Product Overview
The Oriental Motor AZM66MC 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 AC-input component motor features an integrated power-off activated electromagnetic brake and a patented mechanical absolute encoder (ABZO). It is engineered for industrial motion control applications requiring strict vertical load holding, zero position hunting, and sensorless absolute position tracking under heavy operational demands.
Key Technical Specifications
-
Motor Type: αSTEP «Step-Servo» Closed-Loop Stepper Motor
-
Frame Size: 60 mm (2.36 in.) NEMA 24
-
Input Power Type: AC Voltage Input Driver Required (e.g., 100-120 VAC / 200-240 VAC drivers)
-
Holding Torque: 1 N·m (142 oz-in)
-
Electromagnetic Brake: Equipped (Power-off activated, 1 N·m holding torque)
-
Feedback System: Battery-free Mechanical Absolute ABZO Encoder
-
Basic Step Angle: 0.36° (at 1000 P/R resolution setting)
-
Degree of Protection: IP66 (excluding mounting surface and connector)
Battery-Free ABZO Mechanical Absolute Tracking
The AZM66MC 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 AC driver, the AZM66MC 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 lifters, vertical axes, and high-inertia load setups.
