Hollow Rotary Actuators
DGII Series
- Integrated hollow table and closed-loop stepper motor
- Also available with a servo motor
- Frame size: 60 to 200 mm, diameter of hollow section: φ28 to 100 mm
- High-strength, high precision positioning
Features | Hollow Rotary Actuators DGII Series
Features of Actuator Section
Take the AZ Series as an example, and show the features of the DGII Series.
Direct Load Fastening is Possible
Loads with large inertia such as tables and arms can be installed directly on the output table, eliminating the need for connecting parts (collars), reducing design and assembly effort and parts costs.
Large-Diameter Hollow Output Table
Hollow holes can be used for wiring cables and for air and liquid piping.
High Strength
Can Drive Heavy and Large Loads
Maximum permissible axial load is 4000 N. Maximum permissible moment is 100 N·m. It can drive even a load with a large mass or inertia.
Small Surface Runout
Loads can be placed away from the center of the output table.
High Positioning Accuracy
| Motor Vertical Mounting | Motor Horizontal Mounting | |
|---|---|---|
| Backlash | Non-backlash | 6 arcmin (0.1°) |
| Repetitive Positioning Accuracy | ±15 arcsec (±0.004°) | ±30 arcsec (±0.008°) |
Integrated Structure to Reduce Equipment Setup Time
Reduce the Time Required for "Design," "Assembly," and "Adjustment"
Equipment tables and arms can be installed directly on the output table.
High Power Drive With Cross Roller Bearings
- The figure above shows the motor vertical mounting structure. As for the structure of the hollow output table, the same applies to the motor horizontal mounting.
Use According to the Space
Motor vertical mounting and motor horizontal mounting types are available. It can be selected according to the installation space in the equipment.
Advantages of Motor Horizontal Mounting
- Machining of motor clearance hole is not necessary, thereby simplifying the installation plate.
- Cables, pipes, etc. can be routed between the legs under the table.
Selectable Mounting Direction
The DGII Series can be installed horizontally, as well as on ceilings and walls, giving more options for equipment design.
Motor Vertical Mounting
Motor Horizontal Mounting
Advantages of Equipping With αSTEP AZ Series
Battery-Free Absolute Encoder Equipped
It is equipped with a small battery-free mechanical absolute encoder (ABZO sensor). This can help improve productivity and reduce costs.
- Mechanical-Type Sensor
Retains positioning information even when power is not supplied - Multi-Rotation Absolute Encoder
Absolute position detection is possible with ±900 (1,800) revolutions of the motor shaft from the home position
No External Sensors Required
As it is an absolute system, home sensors or limit sensors are not required.
Advantages
- Improved High-Speed Return-to-Home + Return-to-Home Accuracy
- Reduced Cost
- Simple Wiring
- Not Affected by External Sensor Malfunction
Battery-Free
Mechanical sensors do not require batteries.
Positioning information is managed mechanically by the ABZO Sensor.
Advantages
- No need to replace batteries
- Unlimited Driver Installation Possibilities
- Safe for Overseas Shipping
Simplifying the Main Program via Sequence Function
The AZ Series come equipped with a wide variety of sequence functions such as timer settings for linked operation and during operations, conditional branching, and loop operation. (excluding some models)
It can be set up using the support software MEXE02, which simplifies the sequence program of the host system.
- Positioning Operation Data Setting Value (max. 256)
- General-Purpose I/O Signal Counts (Input 10, Output 6)
- Communication I/O Signal Counts (Input 16, Output 16)
Convenient Operation and Setting
The AZ Series features allow you to drive:
Reduce Takt Time With Shortcut Operations
Move the shortest distance toward the set target position.
Example)
Moving from the 0˚ position to 270˚, the shortest counterclockwise rotation direction is automatically selected and driven.
Set No-Entrance Area
Ensure equipment is not damaged by collisions with obstacles and work area is maintained.
Infinite Multi-Rotation is Possible
Equipped with a wrap function that can automatically reset the current position to "0°." Infinite multi-rotation operation is possible.
Reduces Equipment Setup Time
The parameters required to operate the hollow rotary actuator are set at the time of shipment. Contributes to reduced equipment setup time.
[Example of parameters set at the time of shipment]
- Home position
- Resolution (0.01°/step)
- Setting the rotation direction of the output table
- Wrap function setting (±180°)
- *Each initial value can be changed.
Applications and Usage Examples
Applications Dealing With Load Moments
Low Speed and Low Vibration Applications
The microstep drive system and smooth drive function allow for low vibration rotary operation, even at low speeds.
Example) Liquid dispensing equipment
Even at low speed, stable and even dispensing is possible.
For High Precision Positioning Applications
It does not cause the phenomenon called "hunting," in which the shaft moves minutely when stopping. This is ideal for applications where vibration when stopping is a problem.
Example) Image inspection equipment
Accurate images can be captured because there is no hunting.
Applications With Varying Load Inertia
Since gain adjustment is not required, even for equipment with load fluctuations, can operate as set without the need for tuning.
Example) Disk manufacturing equipment
No tuning is required even if the number of discs to be transported changes.
Drivers That Can be Selected to Match the Host Controller
The lineup is available for a variety of controls, systems, and interfaces.
| Driver Type | Compatible Interfaces | Single Axis Driver | |||
|---|---|---|---|---|---|
| AC Input | DC Input | ||||
AZ Series Equipped |
AZX Series Equipped |
AZ Series Equipped |
|||
| Network Compatible | Drivers are controlled directly from a host control device through industrial network |
EtherCAT | ○ | ○ | ○ |
| EtherNet/IP™ | ○ | ○ | ○ | ||
| PROFINET | ○ | ○ | ○ | ||
| MECHATROLINK-III | ○ | － | － | ||
| SSCNET III/H | ○ | － | － | ||
| Built-In Controller | Operation data is built into the driver. Controllable via Modbus (RTU) and I/O. Can be controlled via CC-Link by using a network converter |
Modbus (RTU) I/O CC-Link* |
○ | － | ○ |
| Pulse Input With RS-485 Communication | Controlled by pulse signal. Motor status information can be monitored via Modbus (RTU). |
Pulse input Modbus (RTU) |
○ | － | ○ |
| Pulse Input | Controlled by pulse signal | Pulse input | ○ | － | ○ |
- DC input mini drivers and multi-axis driver lineups are also available.
- *Available when using a network converter (sold separately).
- *EtherCAT® is registered trademark and patented technology, licensed by Beckhoff Automation GmbH, Germany.
- *EtherNet/IP™ is a trademark of ODVA.
- *PROFINET is a trademark or registered trademark of PROFIBUS Nutzerorganisation e.V. (PNO).
- *MECHATROLINK is a registered trademark of the MECHATROLINK Members Association.
- *SSCNET III/H is a registered trademark of Mitsubishi Electric Corporation.
- *CC-Link is a registered trademark of the CC-Link Partner Association.
AZ Series-Equipped Product Line
Since the motors equipped are the same, the operating and maintenance methods are the same.
Electric Actuators (AZ Series equipped)
| Electric Linear Slide | Electric cylinder | Compact Electric Cylinder | Rack-and-Pinion System | Electric Gripper | Hollow Rotary Actuator |
|---|---|---|---|---|---|
| EAS Series EZS Series EZSH Series |
EAC Series | DR Series DRS2 Series |
L Series | EH Series | DGII Series |
- The power supply input of the equipped motor differs between Series. Refer to each Series page for the detailed product line.
Features of Servo Motor AZX Series Equipped
Battery-Free Absolute Encoder Equipped Servo Motor
The servo motor AZX Series used as the drive motor is equipped with the same battery-free mechanical absolute encoder (ABZO Sensor) as the AZ Series.
This servo motor is specialized for positioning and continuous operation.
- Mechanical-Type Sensor
Retains positioning information even when power is not supplied - Multi-Rotation Absolute Encoder
Absolute position detection is possible with ±900 revolutions (1800 revolutions) of the motor shaft from the reference home position
- Refer to here for details on AZX series.
The basic operation method is the same as those equipped with the AZ series
The basic operation method for models equipped with the AZX series is the same as those equipped with the AZ series.
The AZX Series and the AZ Series can be used together in the same equipment without the hassle associated with changes in operability.
| Wiring | Signal system wiring |
|---|---|
| Setting | Switch and parameter functions, setting methods (MEXE02 used) |
| Control | Command ID number when controlling over a network |
| Operation Functions | Built-in positioning operation function, etc. in the driver |
Achieves High Torque in the High Speed Range
The models equipped with the AZX Series achieve high torque in the high speed range.
Suitable for positioning applications with a large amount of travel and continuous operation applications.
- This is a comparison of the speed - torque characteristics of models equipped with the AZX Series and models equipped with the AZ Series.
Models equipped with the AZX Series offer superior torque in the high speed range, models equipped with the AZ Series are better in the low speed range.
Cable Outlet Direction Can be Changed
Since the model equipped with the AZX series is installed using a coupling, the cable outlet direction can be changed by removing the motor and changing its orientation.
Support Software, Monitoring Functions
Easy Drive From PC with Support Software MEXE02
By using the support software MEXE02, you can set and edit operation data and various parameters, as well as teach and monitor various conditions.
Click Here to Download the Support Software
Comprehensive Support From Start-up to Maintenance with a Variety of Functions
-
Startup and Evaluation
Useful functions for wiring check and test operation are provided.
- Setting and Saving of Operation Data
- I/O Monitoring
- Teaching, Remote Operation
-
Adjustment
The following functions are available to help you adjust motor operation after the equipment is installed.
- Waveform Monitoring
-
Diagnosis and Maintenance
Diagnostic and maintenance functions are available for trouble diagnosis and maintenance after operation is started.
- Alarm Monitoring
- Unit Information Monitor
- Status Monitor
-
Operation Data/Parameter Setting Screen -
Waveform Monitoring
Related Products
AZ Series Multi-Axis Driver DC Input
You can connect the Oriental Motor AZ Series DC input motors and electric actuators equipped with such motors.
-
2-Axis Type -
3-Axis Type -
4-Axis Type -
NEW
Slim Type
(4 axes)
- The slim type is only compatible with EtherCAT. For more details, please contact your nearest branch, sales office, or Customer Support Center.
- *EtherCAT® is registered trademark and patented technology, licensed by Beckhoff Automation GmbH, Germany.
- *MECHATROLINK is a registered trademark of MECHATROLINK Members Association.
- *SSCNETⅢ/H is a registered trademark of Mitsubishi Electric Corporation.
AZ Series mini Driver DC Input
This is a mini driver designed to be more compact and lightweight than a box-style driver. Also compatible with battery power supply, so it can be used for an even wider range of applications than before.
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