Servo Motors > Servo Motor Drivers > Hybrid Servo Motor / Stepper Motor Drivers
αSTEP Hybrid Servo Motor / Stepper Motor Drivers
AZ Series Closed Loop Absolute Hybrid Servo Motor / Stepper Motor Drivers
The αSTEP AZD Stepper Motor 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. Advanced operation and function control is included through our MEXE02 software (free download). The αSTEP AZD Stepper Motor Drivers can perform quick positioning operations over a short distance without the need for tuning, while providing smooth performance.
- Built-in Protective Functions
- Pulse Input, Pulse Input with RS-485 Communications or Built-in Controller (Network), EtherNet/IP™, EtherCAT, PROFINET Compatible Types
- For use with AC Input αSTEP AZ Series Stepper Motors
AR Series Hybrid Servo Motor / Stepper Motor Drivers
The αSTEP ARD Drivers offers superior high speed performance, low vibration and closed loop control. 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 αSTEP ARD Drivers 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
- For use with αSTEP AR Series Motors
Closed Loop Performance
These stepper motors use our αSTEP closed loop technology to maintain positioning operation even during abrupt load fluctuations and accelerations without hunting or gain tuning. The rotor position detection sensor monitors the rotation speed and amount. When an overload condition is detected, it will instantaneously regain control using the closed loop mode. When an overload condition continues it will output an alarm signal, thereby providing reliability.
Normally Operates in Open Loop Control for the Same Ease of Use as a Stepper Motor
High Response
By utilizing the high responsiveness of the stepper motor, moving a short distance for a short time is possible. The motors can execute commands without lag.
Holding the Stop Position without Hunting
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.
Tuning-Free
Because it is normally operated with open loop control, positioning is still possible without gain adjustment even when the load fluctuates due to the use of a belt mechanism, cam or chain drive, etc.
Switches to Closed Loop Control during Overload for More Reliable Operation like a Servo Motor
Continues Operation Even with Sudden Load Fluctuation and Sudden Acceleration
It operates synchronously with commands using open loop control during normal conditions. In an overload condition, it switches immediately to closed loop control to correct the position.
Alarm Signal Output in Case of Abnormality
If an overload is applied continuously, an alarm signal is output. When the positioning is complete, and END signal is output. This ensures the same level of reliability as a servo motor.
No Gain Tuning
Gain tuning for servo motors is critical, troublesome and time-consuming. Since these are stepper motors, there are no gain tuning requirements. Low rigidity applications, such as a belt and pulley system, are ideal for closed loop stepper motors.
Types of Servo 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 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.
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.
Hybrid Servo Motor / Stepper Motor Product Comparison
Product Series |
||
|
|
|
Features |
Closed Loop, |
Closed Loop, |
Basic Step Angle |
0.36° |
0.36° |
Driver Power Input |
AC |
AC |
Frame Sizes |
1.65 in. (42 mm) |
1.65 in. (42 mm) |
Available Options |
Geared Type |
Geared Type |
Max. Holding Torque |
42 oz-in up to 752 lb-in |
42 oz-in up to 320 lb-in |
0.3 N·m up to 85 N·m |
0.3 N·m up to 37 N·m |
|
Learn More |
Order Literature
Videos
Technical Articles
