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AC Input Stepper Motors Drivers


Absolute Type Stepper Motor Drivers

Absolute Type Stepper Motor Drivers

 

AZ Series Closed Loop, Absolute Type Stepper Motor Drivers

  • 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)

 

Closed Loop Stepper Motor Drivers

Closed Loop Stepper Motor Drivers

 

AR Series Closed Loop Stepper Motor Drivers

  • Built-in Protective Functions
  • Pulse Input or Built-in Controller (Network) Types
  • Single-Phase 100-115, 200-240 VAC or Three-Phase 200-230 VAC
  • For use with AlphaStep AR Series Motors (AC Input)

 

5-Phase Stepper Motor Drivers

5-Phase Stepper Motor  Drivers

 

RKII Series 5-Phase Microstepping Stepper Motor Drivers

  • High Efficiency, Low Vibration, Microstepping Driver
  • Pulse Input or Stored Data (Network Compatible) Type
  • Built-in Protective Functions
  • Single-Phase 100-120 or Single-Phase 200-240 VAC

 


 

Types of Stepper Motor Drivers

Drivers that operate in the pulse input mode and built-in controller mode are available. You can select a desired combination according to the required operation system.

Pulse Input Drivers

The stepper motor can be controlled using a pulse generator provided by the user. Operation data is input to the pulse generator beforehand. The user then selects the operation data on the host programmable controller, then inputs the operation command.

Pulse Input Type Drivers

Built-in Controller (Stored Data or Stored Program) Type Drivers

The built-in pulse generation function allows the motor to be driven via a directly connected personal computer or programmable controller. Since no separate pulse generator is required, drivers of this type save space and simplify wiring.

Built-in Controller Type Driver

Difference Between AC Input and DC Input Characteristics

A stepper motor is driven by a DC voltage applied through a driver. In Oriental Motor's 24 VDC input motor and driver systems, 24 VDC is applied to the motor. In the 100-115 VAC motor and driver systems, the input is rectified to DC and then approximately 140 VDC is applied to the motor (certain products are exceptions to this.)

This difference in voltage applied to the motors appears as a difference in torque characteristics at high speeds. This is due to the fact that the higher the applied voltage is, the faster the current rise through the motor windings will be, facilitating the application of rated current at higher speeds. Thus, the AC input motor and driver system has superior torque characteristics over a wide speed range, from low to high speeds, offering a large speed ratio.

It is recommended that AC input motor and driver systems, which are compatible over a wider range of operating conditions than DC input systems, be considered for your application.

AC Input vs. DC Input Drivers


Stepper Motor Product Comparison

Product Series

AZ Series Closed Loop, Absolute Stepper Motors

AR Series Closed Loop Stepper Motors

RKII Series 5-Phase Stepper Motors

AlphaStep Closed Loop Absolute Stepper Motors

 

AlphaStep Closed Loop Stepper Motors

 

5-Phase Stepper Motors (AC Input)

 

Features

Closed Loop,
Mechanical Absolute
Encoder

Closed Loop,
High-Efficiency

High-Efficiency
5-Phase

Basic Step Angle

0.36°

0.36°

0.72°

Driver Power Input

AC or DC

AC or DC

AC

Frame Sizes

0.79 in. (20 mm)
1.10 in. (28 mm)
1.65 in. (42 mm)
2.36 in. (60 mm)
3.35/3.54 in. (85/90 mm)

1.10 in. (28 mm)
1.65 in. (42 mm)
2.36 in. (60 mm)
3.35/3.54 in. (85/90 mm)

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

Available Options

Geared Type
Electromagnetic Brake

Geared Type
Electromagnetic Brake

Geared Type
Encoder
Electromagnetic Brake

Max. Holding Torque

2.8 oz-in up to 752 lb-in

42 oz-in up to 320 lb-in

19.8 oz-in up to 460 lb-in

0.02 N·m up to 85 N·m

0.3 N·m up to 37 N·m

0.14 N·m up to 52 N·m

Learn More

AZ Series Closed Loop, Absolute Stepper Motors

AR Series Closed Loop Stepper Motors

RKII Series 5-Phase Stepper Motors




 

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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 Motor Products with Mechanical Absolute Encoder

The AZ Series stepper motor 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.

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.

High-Efficiency RKII Series Stepper Motors & Drivers


The RKII Series is a high performance energy saving stepper motor and driver package with a great low price. To achieve constant maximum torque output with low heat generation and save energy, the stepper motor and driver losses have been substantially reduced allowing to be operated for longer hours at high speed, which is not possible with conventional stepper motors and drivers. With simple wiring featuring screw-less connectors and side by side driver mounting, installation is easy and saves space.

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.

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.