Closed Loop Performance

The AR Series 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. Learn more about the AlphaStep technology.

Lower Heat Generation

The AR Series utilizes high-efficiency technology to achieve a significant reduction in the amount of heat generated from the motor.

The motor generates significantly less heat than the conventional model as seen in the thermography results below.

The graph below shows the difference in temperature of the motor case over the same period of time under the same operating conditions.

Continuous Operation

The AR Series can be operated at high duty cycles allowing the motor to run continuously.

Note: If the motor is operated continuously, a heat sink of a capacity at least equivalent to an aluminum plate with a size of 250 x 250mm*, 6mm thick is required.

*For AC input, 100 x 100mm for DC input type.

Energy-Saving

Power consumption: up to 40% less than our conventional models.

CO₂ emission: up to 40% less than our conventional model (assuming operation at a duty of 40%).

Low Vibration

In addition to the microstep drive system, the AR Series also uses the smooth drive function to allow for smoother motion. The smooth drive function automatically implements microstep drive based on the same travel amount and speed used in the full-step mode, without changing the pulse input settings.

Performance of a Step Motor

The AR Series maintains all of the benefits of a step motor.

High Response

The motor operates synchronously with pulse commands to achieve high response. There's no delay in operation following a pulse command.

Capable of Driving Large Inertia Loads

Compared to a servo motor of the same frame size, a larger inertial load can be driven regardless of speed conditions.

No Hunting / No Tuning

Because it uses a step motor, the AR Series does not hunt when stopped. Accordingly, the AR Series is ideal for applications where the equipment uses a belt-drive mechanism or otherwise has low rigidity and you don't want it to vibrate when stopping.

With the AR Series, you can perform positioning quickly after a load change, etc., without adjusting any gains.

Improved Angle Accuracy

The AR Series uses improved current control technology to improve the stop position accuracy of the motor. The result is greater position accuracy.
AR66AC-3: ±3 arc minutes
Conventional Model: ±5 arc minutes

Compact DC Input Driver with Plastic Case

Compact DC power input driver is covered by a plastic case. The compact size is great for space-saving.

Choose the appropriate power supply 24 VDC or 48 VDC for your application. Motor torque at speed will be increased when 48 VDC is input rather than 24 VDC. [Only 24 VDC input is available for motor frame size 1.10 in. (28 mm) motors.]

DIN Rail Mounting

You can attach the DC input driver to a 1.38 in. (35 mm) width DIN rail through one-step operation, no screw is needed. (DIN rail mounting is the only way to install the driver)

Extended Functions

You can combine a control module (OPX-2A) or data setting software (MEXE02) (both sold separately) to change parameters, add functions and perform various monitoring operations according to the needs of your system.

• Parameter Setting Adjustments
• Monitoring
• Return Operation
• Push-Motion Operation

Return Operation

Two return operation functions are available: return to electrical home operation and automatic return operation. With these options, you can easily set up your system to return home when the main power has been cut off due to an emergency stop, etc., or the motor excitation has been turned off.
While the main power is cut off, the control power (24 VDC) must be supplied in order to maintain positioning.

Return to Electrical Home Operation
An operation in which the motor returns to the "position it had assumed when the power was turned on (=electrical home)" or "location set as the electrical home".

Automatic Return Operation
An operation in which the motor returns to the "position at which motor excitation was turned off (= the C-ON input turned OFF or FREE input turned ON)."

Push-Motion Operation

You can input pulses to perform push-motion operation where the load continuously has force applied to it. The amount of force (motor output torque) is set by the push-motion operating current value. Using a control module (OPX-2A) or data setting software (MEXE02) (both sold separately), change the applicable parameter to "Push-motion operation" turn the T-MODE input ON, and input pulses. The motor will start the push-motion operation.

Build a complete system online by selecting your base motor and driver and adding all necessary accessories and/or controller.

Cables / Connectors

Motor Connection / Extension Cables

The AR Series includes a 9.8 ft. (3m) cable for connecting the motor and driver. If a different length is needed a Motor Cable or Extension Cable must be used.

Driver Cable

This is a shielded cable equipped with a half-pitch connector at one end of the cable that snaps onto the driver. The other end is laminated lead wires aligned in order at a pitch of 0.05 in. (1.27 mm), which is convenient for insulation displacement connectors.

Connector - Terminal Block Unit

A terminal block conversion unit connects a driver to a host controller.

Couplings / Brackets

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.

Motor Mounting Brackets

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

Controllers

Controllers are devices that output pulse signals needed to operate a stepping motor. Controllers let you make various settings to control your motor and also permit connection with a host programmable controller and sensors or PC. Select a controller that best suits your system.

SCX10 - Universal Stored Program Stepping Motor Controller (Single Axis)

SG8030J - Universal Stored Data Stepping Motor Controller (Single Axis)

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