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AlphaStep AZ Series Closed Loop, Absolute Stepper Motors

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AlphaStep Closed Loop Stepper Motors

Mechanical Absolute Encoder Stepper Motors

The AlphaStep AZ Series stepper motors offers high efficiency, low vibration and incorporates our newly developed Mechanical Absolute Encoder for absolute-type positioning without battery back-up or external sensors to buy. Closed loop performance without hunting or gain tuning. Available with a built-in controller or pulse input driver which substantially reduces heat generation from the motor through the use of high-efficiency technology. Requires AlphaStep AZ Series Driver.

  • Battery-Free, Mechanical Absolute Encoder Stepper Motors
  • Closed Loop Performance, No Hunting or Gain Tuning
  • AC or DC Input Types
  • Wide Range of Gear Types for Inertia Matching & Higher Torque
  • Linear & Rotary Actuators
  • Electromagnetic Brake Type Available
  • AZ Series Stepper Motor Driver Required*
Available to Ship: 9 Business Days (1-5 pcs.)

Product Types

Eliminate Extra Sensors with a Battery-Free Absolute System

The AlphaStep AZ Series Mechanical Absolute Encoder is available as a leading closed loop, battery free absolute motion solution sold as a Stepper Motor + Driver, Linear Actuator and Rotary Actuator packages allowing for absolute, battery free, advanced performance across a wide range of applications. All AlphaStep AZ Series products offer guaranteed performance are available in Pulse Input or Built-In Controller (Network) Types in AC or DC Input. A DC Input Multi-Axis Controller / Driver is also available to connect up to 4 axes with one unit.


 


 



Mechanical Absolute Encoder

Advanced Technology at Affordable Prices

AlphaStep Mechanical Absolute Encoder

Oriental Motor has developed and patented a compact, low-cost, battery-free mechanical type absolute sensor. The AlphaStep AZ Series is available at affordable prices and can contribute to improved productivity and cost reductions.

Mechanical-Type Encoder (No Battery Required)

A mechanical sensor composed of multiple gears is employed. Positioning information is detected by recognizing the angle of the individual gears. As a result, it does not require a battery.

Multiple-Rotation Absolute System*

Absolute position detection is possible with ±900 rotations (1800 rotations) of the motor shaft from the home position.

Home Setting Method*

The home position can be easily set by pressing a switch on the drivers surface, which is saved by the Mechanical Absolute Encoder. In addition, home setting is possible with the MEXE02 data setting software or external input signal.

Home position is easy to adjust by moving the motor to a desired position manually.

HOME Setting Switch

*Requires AZ Series Driver

No External Sensors Required

Positional information is managed mechanically. External sensors such as home sensor and the limit sensor are not needed.

No sensors required

Reduced Cost

Sensor costs and wiring costs can be reduced, allowing for lower system costs.

Simple Wiring

Wiring is simplified and the degree of freedom for equipment design is increased.

Not Affected by Sensor Malfunctions

There is no concern about sensor malfunctions (when operating in environments filled with oil mist or filled with metal pieces due to metal processing), sensor failures or sensor wire disconnections.

Improved Return-to-Home Accuracy

Home position accuracy is increase because the return-to-home operation is performed regardless of any variations in home sensor sensitivity.


Shortened Reset Time - High Speed Return-to-Home

Because return-to-home is possible without an external sensor, return-to-home can be performed at high speed without taking the sensor sensitivity into account, allowing for a shortened machine cycle.

high speed return to home


No Battery Required

No battery is required thanks to a mechanical-type sensor. Because positioning information is managed mechanically by the Mechanical Absolute Encoder, the positioning information can be preserved, even if the power turns off, or the cable between the motor and the driver is disconnected.

No battery required

 

Reduced Maintenance

Because there is no battery that needs replacement, maintenance time and costs can be reduced.

Unlimited Driver Installation Possibilities

Because there is no need to secure space for battery replacement, there are no restrictions on the installation location of the driver, improving the flexibility and freedom of the layout design of the control box.

Safe for Overseas Shipping

Normal batteries will self-discharge, so care must be taken when the equipment requires a long shipping time, such as when being sent overseas. The Mechanical Absolute Encoder does not require a battery, so there is no limit to how long the positioning information is maintained. In addition, there is no need to worry about various safety regulations, which must be taken into consideration when shipping a battery overseas.

Position Holding Even when the Cable between the Motor and Driver is Detached

Positioning information is stored within the Mechanical Absolute Encoder.

*Because the positioning information is stored in the Mechanical Absolute Encoder, the home position must be reset if the motor is replaced.

High Reliability

High Reliability is provided by using the control method unique to Oriental Motor that combines the merits of both open loop control and closed loop control.

Continues Operation Even with Sudden Load Fluctuation and Sudden Acceleration

In normal conditions, it operates synchronously with pulse commands under open loop control, and because of its compact size and high torque generation, it has excellent acceleration performance and response. In an overload condition, it switches immediately to closed loop control to correct the position.

Alarm Signal Output in Case of Abnormality

If a continuous overload is applied, an alarm signal is output. Also, when the positioning is completed, a signal is output. This provides high reliability.

No Tuning Required

Because it is normally operated with open loop control, positioning is still possible without gain tuning even when the load fluctuates due to the use of a belt mechanism, cam or chain drive, etc.

Holding the Stop Position

During positioning, the motor stops with its own holding force without hunting. Because of this, it is ideal for applications where the low rigidity of the mechanism requires absence of vibration upon stopping.


Energy Saving

Heat generation is reduced thanks to the high efficiency motor, resulting in energy savings.

Lower Heat Generation

Heat generation by the motor has been significantly reduced through higher efficiency.

Lower heat generationstepper motor surface temperature

stepper motor power consumption


AZ Series AC Input Drivers

AlphaStep AC Input Drivers

The AlphaStep AZD (AC Input) Drivers offers superior high speed performance, high functionality and closed loop control. There are no external sensors to buy as the motor and driver complete the system. Available in 3 types; a stored data (network) driver, pulse input driver or pulse input with RS-485 communications for monitoring. Advanced operation and function control is included through our MEXE02 software (free download). The AZD (AC Input) Drivers can perform quick positioning operations over a short distance without the need for tuning, while providing smooth performance.

  • Built-in Protective Functions
  • Emergency Torque Off Function
  • Pulse Input, Pulse Input with RS-485 Communications or Built-in Controller (Network) Types
  • Single-Phase 100-120 VAC or Single-Phase/Three-Phase 200-240 VAC
  • For use with AlphaStep AZ Series Motors (AC Input)

AZ Series DC Input Drivers

AlphaStep AC Input Drivers

The AlphaStep AZD-K Drivers offer 24/48 VDC input voltage, high functionality and closed loop control. There are no external sensors to buy as the motor and driver complete the system. Available in 3 types; a stored data (network) driver, pulse input driver or pulse input with RS-485 communications for monitoring. Advanced operation and function control is included through our MEXE02 software (free download). The AZD-K (DC Input) can perform quick positioning operations over a short distance without the need for tuning, while providing smooth performance.

  • Built-in Protective Functions
  • Pulse Input, Pulse Input with RS-485 Communications or Built-in Controller (Network) Types
  • 24/48 VDC
  • For use with AlphaStep AZ Series Motors (DC Input)

CAD / Manual Search

To locate product CAD and Operator Manuals please search using the product Item Number.

Downloads


Order Brochure

AZ Series Brochure

Order Brochure

 

AZ Series Multi-Axis Driver Brochure

Order Brochure

 

Videos

 

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Order the AZ Series Brochure

AZ Series Brochure

Request an AZ Series Product Demo

Complete the below form and an Oriental Motor Sales Engineer will contact you to discuss and schedule a live demo of the AlphaStep AZ Series Mechanical Absolute Encoder Products and Technology. Live demos are only available within the continental United States at this time.


Order the AZ Series Multi-Axis Brochure

AZ Series Multi-Axis Brochure

Closed Loop Stepper Motor Product Demo - AR Series


The AR Series of stepper motors and drivers uses Oriental Motor's closed loop control to maintain positioning operation even during abrupt load fluctuations and accelerations. The rotor position detection sensor monitors the rotation. When an overload condition is detected, the AR Series will instantaneously regain control using the closed loop mode. When an overload condition continues, the AR Series will output an alarm signal, thereby providing reliability equal to that of a servo motor.

Parallel Delta Robot Using AZ Series Stepper Motors with Hybrid Control


A compact and lightweight parallel Delta robot that uses AlphaStep AZ Series line of product: 3 AZ Series with harmonic gear stepper motors and 1 EtherCAT compatible multi-axis driver.

AZ Series Stepper Motors Easy Home Setting

 

How to set the Home position with the all new AZ Series stepper motor with the newly developed absolute mechanical encoder.

AZ Series Stepper Motor Mechanical Absolute Encoder Restart Demo

 

AZ Series Closed Loop Stepper Motor video example of restarting after an emergency power shut down or outage using stored data FLEX driver type.

Stepper Motor Product Demo


The AR Series closed loop stepper motor and driver package uses Oriental Motor's closed loop control to maintain positioning operation even during abrupt load fluctuations and accelerations. The rotor position detection sensor monitors the rotation. When an overload condition is detected, the AR Series will instantaneously regain control using the closed loop mode. When an overload condition continues, the AR Series will output an alarm signal, thereby providing reliability equal to that of a servo motor.