AZ Series Closed Loop, Absolute Stepper Motors

AZ Series Closed Loop, Absolute Mechanical Encoder Stepper Motors

AZ Series Closed Loop, Mechanical Absolute Encoder Stepper Motors

The AZ Series stepper motors offer 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 AZ Series Driver.

  • Battery-Free, Mechanical Absolute Encoder
  • Closed Loop Performance, No Hunting or Gain Tuning
  • AC or DC Input Types
  • Wide Range of Gear Types for Inertia Matching & Higher Torque
  • Electromagnetic Brake Type Available
  • AZ Series Driver Required*

Mechanical Absolute Encoder

Mechanical Absolute Encoder


Product Lineup

Driver Power Input

Frame Size

Motor Types

Available Options

Max. Holding Torque

AC Input

42mm closed loop stepper motors

AC Input
1.65 in. (42 mm)
NEMA 17

Standard Type

Electromagnetic Brake

42 oz-in

0.3 N·m

Geared Type

92 ~ 704 oz-in

0.65 ~ 5 N·m

60mm closed loop stepper motors

AC Input
2.36 in. (60 mm)
NEMA 24

Standard Type

Electromagnetic Brake

142 ~ 280 oz-in

1 ~ 2 N·m

Geared Type

254 ~ 1408 oz-in

1.8 ~ 10 N·m

85 / 90 mm Closed Loop Absolute Stepper Motors

AC Input
3.35 / 3.54 in.
(85 / 90 mm)
NEMA 34

Standard Type

Electromagnetic Brake

280 ~ 460 oz-in 2 ~ 4 N·m

Geared Type

53 ~ 460 lb-in 6 ~ 52 N·m

DC Input

20 mm NEMA 8 Closed Loop Absolute Stepper Motors

DC Input
0.79 in. (20 mm)
NEMA 8

Standard Type

-

2.8 ~ 5.1 oz-in 0.02 ~ 0.036 N·m

28 mm Closed Loop Absolute Stepper Motors

DC Input
1.10 in. (20 mm)
NEMA 11

Standard Type - 13.4 ~ 26 oz-in 0.1 ~ 0.19 N·m

42mm closed loop stepper motors

DC Input
1.65 in. (42 mm)
NEMA 17

Standard Type

Electromagnetic Brake

42 oz-in

0.3 N·m

Geared Type

92 ~ 704 oz-in

0.65 ~ 5 N·m

60mm closed loop stepper motors

DC Input
2.36 in. (60 mm)
NEMA 24

Standard Type

Electromagnetic Brake

142 ~ 280 oz-in

1 ~ 2 N·m

Geared Type

254 ~ 1408 oz-in

1.8 ~ 10 N·m

* Geared Stepper Motor frame size.


 

Mechanical Type Absolute Encoder

Advanced Technology at Affordable Prices

Mechanical Absolute Encoder

Oriental Motor has developed and patented a compact, low-cost, battery-free mechanical type absolute sensor. The 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



Taper Hobbed Gear Stepper Motors (TS)

  • 1.65 in. (42 mm)
  • 2.36 in. (60 mm)
  • 3.54 in. (90 mm)

Taper Hobbed Gear Stepper Motors

High Speed, Low Backlash Gears

This geared type is made with a simple spur gear design. The torque and speed have been improved.

Because of its high accuracy, this type has the same level of accuracy when compared to our tapered (TH) type without the added cost of tapering.

Taper Hobbed Gear Structure

Planetary Gear Stepper Motors (PS)

  • 1.65 in. (42 mm)
  • 2.36 in. (60 mm)
  • 3.54 in. (90 mm)

Planetary Gear Stepper Motors

High Permissible Torque, Low Backlash Gears

The PS gear mechanism is comprised primarily of a sun gear, planetary gears and an internal tooth gear. The planetary gears design allow for higher output torque.

There are gears inside used to distribute torque, which allows for higher torque than a spur gear design. The PS gear uses a higher accuracy gear design which provides for a lower backlash when compared to a spur gear design.

Planetary Gear Structure

Harmonic Planetary Gear Stepper Motors (HPG)

  • 1.65 in. (42 mm)
  • 2.36 in. (60 mm)
  • 3.54 in. (90 mm)

High Accuracy, Non-backlash Gears

The HPG gear combine a harmonic and planetary gear speed-reduction mechanism allowing for high positioning accuracy, high permissible torque and high maximum instantaneous torque. The HPG Gears are available with a center shaft or surface mount to meet the needs of various applications.

 


Harmonic Gear Stepper Motors (HS)

  • 1.65 in. (42 mm)
  • 2.36 in. (60 mm)
  • 3.54 in. (90 mm)

Harmonic Gear Stepper Motors

High Accuracy, Non-Backlash Performance Gears

The mechanical life, permissible torque and maximum torque are improved (compared with conventional models).

Improved Rate Life (Twice the length of conventional models)

The rate life has been increased from 5,000 hours (conventional model) to 10,000 hours.
[Except for 1.65 in. (42 mm) frame size]

Harmonic Gear Structure

The harmonic gear utilizes the metal’s electrodynamics property. It is comprised of three basic components, a wave generator, flex spline and circular spline.

Stepper Motor Gear Structure

Harmonic Gear Rotation

Rotating the wave generator (input) clockwise while keeping the circular spline fixed in position will subject the flax spline to elastic deformation, causing a gradual shift in the point of engagement between the circular spline and flex spline.

Harmonic Gear Rotation

When the wave generator completes one revolution, the flex spline has rotated two fewer teeth than the circular spline has, resulting in the movement of the flex spline for the difference in the tooth count (two teeth) in the opposite direction of the wave generator's rotation (i.e. counterclockwise). This movement translates into output, thereby reducing the speed.


Surface Installation of Load

The harmonic geared type permits installation of load directly on the rotating surface integrated with the shaft. [Expect for geared stepper motors with a frame size of 3.54 in. (90 mm)].

Harmonic Gear Installation

 

Harmonic Gear Index Table

 


Electromagnetic Brake Option

  • 1.65 in. (42 mm)
  • 2.36 in. (60 mm)
  • 3.35 / 3.54 in. (85 / 90 mm)

Stepper Motor with Brake Option

These products have built-in power-off activated electromagnetic brakes. When power is accidentally cut off due to a blackout or other unexpected events, the electromagnetic brake holds the load in position to prevent it from dropping or moving. Also, when the motor is at standstill, it is held by the electromagnetic brake. It is possible to suppress the heat generated from the motor by turning off the motor current.


AZ Series AC Input Drivers

AC Input Drivers

The 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 a stored data (network) driver or pulse input driver. 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 or Built-in Controller (Network) Types
  • Single-Phase 100-120 VAC or Single-Phase/Three-Phase 200-240 VAC
  • For use with AZ Series Motors (AC Input)

 

AZ Series DC Input Drivers

AC Input Drivers

The 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 a stored data (network) driver or pulse input driver. 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 or Built-in Controller (Network) Types
  • 24/48 VDC
  • For use with AZ Series Motors (DC Input)

 

SCX11 Universal Controller

universal controller

The SCX11 is a highly-functional and sophisticated controller equipped with program editing and execution functions. Use the SCX11 as a stored program controller to connect to any of Oriental Motor's standard pulse input drivers. The SCX11 is also able to control the motor via serial communications such as USB, RS-232C and CANopen.

 

Network Gateways

Network Gateways

The communication protocol of the master controller, Factory Automation (FA) network, is converted to Oriental Motor's own RS-485 communication protocol. Connection to Oriental Motor's network compatible products is completed with one RS-485 communication cable.

  • Compatible Networks:
    CC-Link, MECHATROLINK-II, MECHATROLINK-III, EtherCat

EtherCat CC-Link MECHATROLINK


Cables

Cables

These cables are used to connect or extend the distance between the motor and driver.

Required (sold separately).

Use a flexible motor cable if the motor is installed on a moving part or its cable will be flexed.


 

Flexible Couplings

Flexible Couplings

This three-piece coupling adopts an aluminum alloy hub and a resin spider. The simple construction ensures that the high torque generated by a gear motor can be transmitted reliably. The proper elasticity of the spider suppresses motor vibration.

 

Mounting Brackets

Mounting brackets are convenient for installation and securing a stepper motor or geared stepper motor.



System Configuration

AC Input

System Configuration

System Configuration

 

DC Input

system configuration

system configuration


Motor & Driver Combinations

AC Input Type

 

Built-in Controller (Network)

Pulse Input

Gear

Rear

Size

Motor P/N

Driver P/N

Rear

Size

Motor P/N

Driver P/N

Round

Single

46

AZM46AC

AZD-♢D

Single

46

AZM46AC

AZD-♢

66

AZM66AC

66

AZM66AC

69

AZM69AC

69

AZM69AC

98

AZM98AC

98

AZM98AC

911

AZM911AC

911

AZM911AC

Electromagnetic
Brake

46

AZM46MC

Electromagnetic
Brake

46

AZM46MC

66

AZM66MC

66

AZM66MC

69

AZM69MC

69

AZM69MC

98

AZM98MC

98

AZM98MC

TS Geared
Type

Single

46

AZM46AC-TS☐

AZD-♢D

Single

46

AZM46AC-TS☐

AZD-♢

66

AZM66AC-TS☐

66

AZM66AC-TS☐

98

AZM98AC-TS☐

98

AZM98AC-TS☐

Electromagnetic
Brake

46

AZM46MC-TS☐

Electromagnetic
Brake

46

AZM46MC-TS☐

66

AZM66MC-TS☐

66

AZM66MC-TS☐

98

AZM98MC-TS☐

98

AZM98MC-TS☐

PS Geared
Type

Single

46

AZM46AC-PS☐

AZD-♢D

Single

46

AZM46AC-PS☐

AZD-♢

66

AZM66AC-PS☐

66

AZM66AC-PS☐

98

AZM98AC-PS☐

98

AZM98AC-PS☐

Electromagnetic
Brake

46

AZM46MC-PS☐

Electromagnetic
Brake

46

AZM46MC-PS☐

66

AZM66MC-PS☐

66

AZM66MC-PS☐

98

AZM98MC-PS☐

98

AZM98MC-PS☐

HPG Geared Type
(Harmonic Planetary)

Single

46

AZM46AC-HP☐

AZD-♢D

Single

46

AZM46AC-HP☐

AZD-♢

AZM46AC-HP☐F

AZM46AC-HP☐F

66

AZM66AC-HP☐

66

AZM66AC-HP☐

AZM66AC-HP☐F

AZM66AC-HP☐F

98

AZM98AC-HP☐

98

AZM98AC-HP☐

AZM98AC-HP☐F

AZM98AC-HP☐F

Electromagnetic
Brake

46

AZM46MC-HP☐

Electromagnetic
Brake

46

AZM46MC-HP☐

AZM46MC-HP☐F

AZM46MC-HP☐F

66

AZM66MC-HP☐

66

AZM66MC-HP☐

AZM66MC-HP☐F

AZM66MC-HP☐F

98

AZM98MC-HP☐

98

AZM98MC-HP☐

AZM98MC-HP☐F

AZM98MC-HP☐F

Harmonic
Geared Type

Single

46

AZM46AC-HS☐

AZD-♢D

Single

46

AZM46AC-HS☐

AZD-♢

66

AZM66AC-HS☐

66

AZM66AC-HS☐

98

AZM98AC-HS☐

98

AZM98AC-HS☐

Electromagnetic
Brake

46

AZM46MC-HS☐

Electromagnetic
Brake

46

AZM46MC-HS☐

66

AZM66MC-HS☐

66

AZM66MC-HS☐

98

AZM98MC-HS☐

98

AZM98MC-HS☐

♢ = A (Single 100-120 VAC) / C (Single-Three 200-240VAC)

☐ = Gear Ratio

DC Input Type

 

Built-in Controller (Network)

Pulse Input

Gear

Rear

Size

Motor P/N

Driver P/N

Rear

Size

Motor P/N

Driver P/N

Round

Single

14

AZM14AK

AZD-KD

Single

14

AZM14AK

AZD-K

15

AZM15AK

15

AZM15AK

24

AZM24AK

24

AZM24AK

26

AZM26AK

26

AZM26AK

46

AZM46AK

46

AZM46AK

66

AZM66AK

66

AZM66AK

69

AZM69AK

69

AZM69AK

Electromagnetic
Brake

46

AZM46MK

Electromagnetic
Brake

46

AZM46MK

66

AZM66MK

66

AZM66MK

69

AZM69MK

69

AZM69MK

TS Geared
Type

Single

46

AZM46AK-TS☐

AZD-KD

Single

46

AZM46AK-TS☐

AZD-K

66

AZM66AK-TS☐

66

AZM66AK-TS☐

Electromagnetic
Brake

46

AZM46MK-TS☐

Electromagnetic
Brake

46

AZM46MK-TS☐

66

AZM66MK-TS☐

66

AZM66MK-TS☐

PS Geared
Type

Single

46

AZM46AK-PS☐

AZD-KD

Single

46

AZM46AK-PS☐

AZD-K

66

AZM66AK-PS☐

66

AZM66AK-PS☐

Electromagnetic
Brake

46

AZM46MK-PS☐

Electromagnetic
Brake

46

AZM46MK-PS☐

66

AZM66MK-PS☐

66

AZM66MK-PS☐

HPG Geared Type
(Harmonic Planetary)

Single

46

AZM46AK-HP☐

AZD-KD

Single

46

AZM46AK-HP☐

AZD-K

AZM46AK-HP☐F

AZM46AK-HP☐F

66

AZM66AK-HP☐

66

AZM66AK-HP☐

AZM66AK-HP☐F

AZM66AK-HP☐F

Electromagnetic
Brake

46

AZM46MK-HP☐

Electromagnetic
Brake

46

AZM46MK-HP☐

AZM46MK-HP☐F

AZM46MK-HP☐F

66

AZM66MK-HP☐

66

AZM66MK-HP☐

AZM66MK-HP☐F

AZM66MK-HP☐F

Harmonic
Geared Type

Single

46

AZM46AK-HS☐

AZD-KD

Single

46

AZM46AK-HS☐

AZD-K

66

AZM66AK-HS☐

66

AZM66AK-HS☐

Electromagnetic
Brake

46

AZM46MK-HS☐

Electromagnetic
Brake

46

AZM46MK-HS☐

66

AZM66MK-HS☐

66

AZM66MK-HS☐

☐ = Gear Ratio

CAD / Manual Search

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

Downloads


Order Literature

AZ Series Brochure

 

Videos

Closed Loop Demo

AZ Series - Easy Home Setting

AZ Series - Restarting Demo

Closed Loop Stepper Drivers*
Linear Actuators
Rotary Actuators

 

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AZ Series Brochure