2-Phase Stepper Motors PKP Series Standard Type/Harmonic Geared Type/With Encoder Frame Size 13 mm

Features

A Frame Size of Just 13 mm. Our Smallest Stepper Motor, Contributing To The Downsizing of Equipment

A stepper motor with a frame size of 13 mm. This contributes to making medical devices, measuring instruments, and other equipment even smaller and lighter.

Standard Type Harmonic Geared Type AAA Batteries

NEW Standard Type With Encoder
NEW Harmonic Geared Type With Encoder
The Same Length as an AAA Battery and Mass Only 21 to 39 g

Achieves Misstep Detection Even in Limited Spaces. Frame size 13 mm Stepper Motors with Compact EncoderWith Encoder

Encoder Main Specifications

It is equipped with a magnetic encoder that is resistant to dust, condensation, and vibration.
Despite its extremely compact size with a frame size of only 13 mm, it enables high accuracy positioning and the detection of position data via the encoder.

Type	Standard Type With Encoder	Harmonic Geared Type With Encoder
Gear Ratio	－	30	50	100
Resolution	200/400/1000 P/R
Angular Accuracy	±0.36°
Output Signals	Phase A, Phase B, Phase Z (3ch)
Output Circuit Type*	Voltage Output/Open-Collector Output
Encoder Operating Temperature	−10 to 100°C

• * We do not offer line driver output.

Motor Position Detection is Possible

By comparing the command position with the feedback position, it is possible to detect abnormalities such as loss of synchronization.
Because the detection accuracy (±0.36°) is guaranteed, it can be used safely for position detection purposes.

System Configuration Example

• *Converted value at motor output shaft

Angular Accuracy

This is the calculation error between the actual rotation angle and the angle output from the encoder.

Return-to-Home is Possible Without Adjusting the Sensor’s Position

The step "0" position, encoder, and Z-phase signal position of the motor are adjusted by Oriental Motor and shipped assembled.
It can be used as a home sensor (a sensor mounted on the motor shaft that detects the home position within a single rotation).

This makes it easier to use the Z-phase output signal and TIM output signal^* together to improve the repeatability of the return-to-home function.

• *The signal output from the driver for each step "0" position (stable point).
  This signal outputs every 7.2° rotations of the motor output shaft from the home.

When the Timing of Z-phase Output is Not Fixed

Since the output timing of the Z-phase signal is not fixed, it is difficult to use it as a substitute for the home sensor, and it is also difficult to use it together with the TIM signal.

When the Timing of Z-phase Output is Fixed
New Encoder (Magnetic type)

It outputs Z-phase signals with a width of ±3.6° centered on the step "0" position (stable point).

When Not Using a Motor With Encoder

The sensor position must be adjusted so that the external sensor signal and the TIM signal are output simultaneously.

When Using a Motor With Encoder

The Z signal and the TIM signal have been adjusted to be output simultaneously.

Improved repeatability ensures more precise positioning operation of test tubes, preventing issues such as missed grips or collisions when a robotic hand grasps them.

Ideal for Applications Requiring Compact Size, High Torque, and High Precision. A Compact Geared Stepper Motor With a Frame Size of 13 mm
Harmonic Geared Type

High Torque

Despite being small with a frame size of 13 mm, this stepper motor has the same torque and strength as the standard type with a mounting angle of 28 mm. It’s suitable for applications requiring high torque in limited space.

Harmonic Geared Type Frame Size 13 mm Gear Ratio 100	33 g
Standard Type Frame Size 28 mm

Desktop Dispensers

Standard Type Frame Size 28 mm

Harmonic Geared Type Frame Size 13 mm

High Accuracy

Due to non-backlash, the output shaft moves and stops with very high accuracy relative to the motor command position.
It is suitable for applications and mechanisms that require precise positioning and stopping at specific distances or locations, such as in the medical and semiconductor industries.

• Lost Motion [arcmin]:
  1.5 (0.025°) or less (±2 mN·m)
• Angular Transmission Accuracy [arcmin]:
  10 (0.167°) or less

High Resolution

Gear ratios of 30, 50, and 100 are available.
The lineup of high gear ratio products enables precise movements in applications such as precision stages.

Gear Ratio	Basic Step Angle
30	0.06°
50	0.036°
100	0.018°

Flat Torque Characteristics up to High Speeds Standard Type

It is suitable for applications requiring long positioning distances, such as ball screw mechanisms, and for applications where motors are operated at high speeds.

Speed - Torque Characteristics (Reference values) fs: Maximum Starting Frequency

Motor: PKP203D06A2 (Single shaft) / PKP203D06B2 (Double shaft)

Application Examples and Equipment Mechanisms

It is suitable for applications requiring compact, high accuracy positioning, such as semiconductors, medical devices, robotics, humanoid hands, and animatronics.

Product Lineup

Click here for detailed information on the lineup, specifications, and list prices

Related Products

2-Phase Stepper Motor PKP/PK Series