Proposals for Assembly, Processing and Inspection Equipment

Return-to-Home without External Sensors

The αSTEP AZ Series is equipped with a battery-free mechanical absolute sensor (ABZO Sensor) at the rear of the motor. This renders time-consuming sensor return-to-home unnecessary. It will also protect against the effects of any external sensor malfunctions.

High Accuracy/Non-Backlash

Unlike gearheads that use common spur gears, a harmonic gearhead provides superior positioning accuracy not available in other types as a result of lack of backlash (play in gear meshing). The harmonic gear has many teeth in simultaneous meshing engagement, and it is designed to average out the effects of tooth pitch error and cumulative pitch error on rotation accuracy to ensure high positioning accuracy.

Product Name	Angular Transmission Accuracy [arcmin]
AZM46-HS□	1.5 (0.025˚)
AZM66-HS□
AZM98-HS□	(0.017˚)

Driving Large Load Inertia

Because harmonic gearheads are highly rigid, they are resistant to torsion and are less affected by load torque fluctuations compared to standard motors.
This means that stable high positioning accuracy can be ensured even with large inertia or significant change in the load size.

AZ Series AZM66AK-HS50 Rotor Inertia	NX Series NX620A Rotor Inertia
405 × 10-7 [kg・m2]	162 × 10-7 [kg・m2]
AZ Series AZM66AK-HS50 Permissible Inertia	NX Series NX620A + 50× in comparison Permissible Inertia
30375 × 10-4 [kg・m2]	20250 × 10-4 [kg・m2]

Integration and Downsizing

Oriental Motor’s geared motors do not require couplings as the teeth are cut directly on the motor's shaft, and therefore they require less space.

Built-in Products

▶Equipped with αSTEP AZ Series

A battery-free absolute system is possible with the newly developed ABZO Sensor.
For the driver, a pulse input type, I/O-controlled built-in positioning type and network compatible driver are available and can be selected based on the intended application.
Oriental Motor offers a wide range of motors, including harmonic geared types.

If you have any questions, please contact the Oriental Motor Customer Service Center.

Ideal for Precise travel amounts and High-Accuracy Positioning

By integrating the hollow rotor and ball screw nut without using couplings or other connecting parts, the rigidity of the components and the effect of backlash due to combinations are reduced.

2 types of screws are available: ground ball screws and rolled ball screws.

[Minimum Step Angle] 0.001 mm
[Repetitive Positioning Accuracy]

Ground Ball Screw: ±0.003 mm
Rolled Ball Screw: ±0.01 mm

Compact Body Houses the Entire Linear Motion Mechanism

Because connecting parts such as linear guides and couplings are no longer necessary, the equipment as a whole can be made smaller. The number of required parts is also significantly smaller compared to self-made mechanisms.

	Number of Components	Configuration Image	Components
Self-Made Mechanism	9 Pieces		① Mounting plate ② Transportation table ③ Linear guide ④ Coupling ⑤ Fixed-side block ⑥ Ball screw ⑦ Fixed-side bearing ⑧ Support-side block ⑨ Support-side bearing
When using DR Series Table Type	0 Pieces		-

Versatile Mounting Methods

With various mounting methods available, allowing for flexible mounting options to suit small spaces.
Through multiple combinations, an XYZ unit can be configured to create compact equipment.

Mounting Example (Reference)

Front Mounting

Side Mounting

Mounting with Flange
(Excluding rod type)

Mounting with foot
(Excluding DR20 rod type)

The figure shows a table type.

No External Sensors or Space for External Sensors Required

When the αSTEP AZ Series is used, the compact body allows for smaller and lighter equipment.
Because position data is managed mechanically by the ABZO Sensor, external sensors such as a home sensor and limit sensor are not required.
Regular maintenance issues when using external sensors can also be avoided.

Listed Products

▶Compact Electric Cylinder DR Series (Equipped with αSTEP AZ Series)

The compact body with integrated αSTEP and ball screw can contribute to reducing equipment size and space.
Our leading-edge lightweight equipment provides improved design flexibility.
Because the drive motor uses the αSTEP AZ Series and uses a battery-free absolute encoder (ABZO Sensor), it does not require any external sensors, such as a home sensor or a limit sensor.

If you have any questions, please contact the Oriental Motor Customer Service Center.

Unified Control for A Wide Variety of Operations

The αSTEP AZ Series offers a wide product line, such as motors, products equipped with electromagnetic brakes, geared types, and many more.
Electric actuators that combine a motor and a mechanism components are also available.
By using common shared motor and cables, the wiring and control are unified, thereby contributing to reduced equipment assembly time.

For details on related products, please click on the links below.

Electric Linear Slides

▶EZS Series

Electric Cylinders

▶EAC Series

Compact Electric Cylinders

▶DRS2 Series

Hollow Rotary Actuators

▶DGII Series

Rack-and-Pinion System

▶L Series

Electric Gripper

▶EH Series

Benefits of Unification

• Unified Wiring

  Because the I/O pin layout is the same, electrical design and wiring work can be performed efficiently.

• Unified Control

  Since the control method is the same, different operations can be performed using the same method. For network control, the remote I/O and command codes are the same, which saves time and work creating a program.

• Unified Maintenance Components

  Because they share the same motor, driver and cables, it is possible to reduce the maintenance components kept in stock. It will also save on management costs (inventory costs and storage space).

Multi-Axis Driver

The αSTEP AZ Series multi-axis drivers are available in 2-axis, 3-axis and 4-axis types.
Because motor control of multiple units can be performed with a single driver, wiring to the host PLC can be simplified.

4-Axis Type Multi-Axis Driver

Main Power Supply Cable ×4
Communication Cable ×4
Cable for Motor ×8
Total: 16 cables

Main Power Supply Cable ×1
Control Power Supply Cable ×1
Communication Cable ×1
Cable for Motor ×4
Total: 7 cables

No External Sensors Required

Because the AZ Series can manage the position data in real time using its built-in mechanical absolute encoder (ABZO Sensor), the external sensors that are required for return-to-home can be eliminated. None of the 5 axes used in CG equipment require an external sensor. Not only does this reduce component costs and time spent wiring, it can also prevent sensor-related problems, such as false detection due to a severed line, which contributes to an overall reduction in costs.

Reduced Return-To-Home Time

The AZ Series is equipped with a battery-free absolute encoder (ABZO Sensor).
It retains position data even if the power is interrupted by a power outage or an emergency stop during positioning operation. It can perform high-speed return-to-home without the use of an external sensor.

Built-in Products

▶αSTEP AZ Series

It is even more reliable than closed loop control, and the higher efficiency significantly reduces the heat generated by the motor. It can perform high-frequency, short-distance positioning operations without having to worry about drive duty.

▶αSTEP AZ Series Multi-Axis Driver

Products that are compatible with EtherCAT drive profile, MECHATROLINK-III and SSCNET III/H are available. This driver can be connected to an AZ Series DC input type motor, as well as to an electric actuator.

If you have any questions, please contact the Oriental Motor Customer Service Center.