High Accuracy

In general, stopping accuracy tends to be lower during microstep operation than full step operation and this effect is more noticeable in a 1.8° motor. In this situation, using a 0.72°/0.36° stepper motor along with a CVD 5-phase driver enables a higher positioning accuracy.

Stopping Accuracy:

• 0.72° = ±0.05° (±3 arcmin)
• 0.36° = ±0.034° (±2 arcmin)

Low Vibration and Low Noise

Because the basic step angle is small at 0.72° (0.36° for high-resolution type), the vibrations and noise are lower than the 2-phase stepper motor with a basic step angle of 1.8°. Also, vibrations and noise can be further reduced with the use of a 5-phase stepper motor and CVD 5-phase driver..

Direct Replace for 2-Phase Motors

Our 5-phase stepper motors are now available in multiple frame sizes to allow for direct replacement of standard 2-phase motors allowing for increased resolution and lower vibration on your application.

Utilizing Hybrid Stepper Motor Technology

A hybrid stepper motor is a combination of the variable reluctance and permanent magnet type motors. The rotor of a hybrid stepper motor is axially magnetized like a permanent magnet stepper motor, and the stator is electromagnetically energized like a variable reluctance stepper motor. Both the stator and rotor are multi-toothed.

A hybrid stepper motor has an axially magnetized rotor, meaning one end is magnetized as a north pole, and the other end a south pole. Toothed rotor cups are placed on each end of the magnet, and the cups are offset by half of a tooth pitch.

High-Resolution

The 0.36° high-torque type stepper motors provide 1000 steps per revolution by having 100 teeth on the rotor. This contributes to the highest resolution and lowest vibration.

Stop Position Accuracy of 2 Arc Minutes (No Load)

The 0.36° high-torque type stepper motor is designed with a stop position accuracy of 2 arc minutes (0.034°) [standard type: 3 arc minutes (0.05°)]. The reduced error helps improve the positioning accuracy.

High Speed, Low Backlash Gears

This geared type is made with a simple spur gear design. The torque and speed have been improved.

Because of its high accuracy, this type has the same level of accuracy when compared to our tapered (TH) type without the added cost of tapering.

Encoder Type Stepper Motors

A rotary encoder is an electro-mechanical device that converts the angular position of a shaft to an analog or digital code. There are two main types: absolute and incremental. Oriental Motor offers incremental types (Line Driver or Voltage (TTL equivalent)) as a standard product for our stepper motors. For an absolute encoder solution, use the AZ Series. For other standard product encoder offerings and motors that correct themselves, contact technical support  for assistance.

An incremental encoder provides the incremental change in position of the encoder to the counting electronics. Stepper motors with incremental encoders make it possible to monitor the present position and detect for errors. Position monitoring can be used to detect the position of the motor. For instance, to confirm normal operations, compare commanded position to the actual position.

3-Channel Encoders

Use the Index signal for the return-to-home operation. By using the Index signal, the return-to-home point will be detected with higher accuracy than single use of the return-to-home sensor. The index channel is an optional output channel which provides one pulse per revolution.

Line Driver Output Type

The Line Driver output offers excellent noise resistance because of the differential output and is capable of longer wiring distance compared to the voltage output.

Magnetic Encoders (1000 P/R Resolution)