2-Phase Stepper Motors

PKP/PK Series

PKP/PK Series 2-Phase Stepper Motors
  • High torque, low vibration
  • Frame Size: 13 to 90 mm
  • Geared type, with encoder, and with electromagnetic brake available

Features | 2-Phase Stepper Motor PKP/PK Series

Improved Performance

Higher Torque

Higher current is now possible due to a review of the motor winding design. Increased torque over the entire speed range from low to high is achieved.

Comparison of Speed - Torque Characteristics of the Same Size Motors

Comparison of Speed - Torque Characteristics of the Same Size Motors

Comparison of Maximum Holding Torque

Comparison of Maximum Holding Torque

Energy and Power Saving

By reducing the operating current supplied to the motor, the same torque as conventional products can be obtained while reducing power consumption and CO2 emissions.

Power consumption and CO2 emissions are reduced by 56 % compared to the conventional products(compared to our products)

Power consumption and CO2 emissions are reduced by 56 % compared to conventional products
Rotation Speed 0.1 kHz (30 r/min)
Operating Time 24 hours a day, 365 days a year
Operating Conditions 50 % in operation, 50 % on standby
Power Supply Voltage 24 VDC
CO2 Coefficient 0.519 kg-CO2/kWh

Low vibration

Revising the magnetic design has achieved lower vibration than with conventional products.

Low vibration

Save Resources Through Downsizing

Torque improved considerably compared to conventional products. When compared at equivalent torque, using the PKP Series enables motor downsizing. This helps to save space and reduce the weight of the equipment.

44 % reduction in volume when comparing dimensions!

Dimensions comparison
Product Name PK264-02A PKP244U12A2
Maximum Holding Torque
(N·m)
0.39 0.39
Frame Size
(mm)
56.4 42
Mass (kg) 0.45 0.3

Compact and Flat Connector

The PKP Series uses a compact and flat connector, which lowers the connector's overhang (excluding some products). In addition, flexibility for the motor cable outlet direction has been increased, as outlet direction points upward.

pkp244d23b2
pkp cable outlet
  • *For details, refer to the dimensions diagram of each motor.

With Encoder

Models equipped with an encoder are available. Comparing the command position and current position enables you to check the normal operation of the motor.

Encoder

Encoder’s Main Specifications

Type Standard Type High-Resolution Type
SH Geared Type
Resolution 200 P/R, 400 P/R
1000 P/R*
400P/R
Angular Accuracy ±0.36° (converted value at motor output shaft)
Output Signals Phase A, Phase B, Phase Z (3ch)
  • *The standard types with a frame size of 42 mm and 56.4 mm are also available with a resolution of 1000 P/R.

Angle Accuracy

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

Angle Accuracy

Motor Position Detection is Possible

Monitoring the current position and detecting positional errors are possible.
For example, comparing the command position and current position enables you to check the normal operation of the motor.

System Configuration Example

System Configuration Example
  • *Converted value at motor output shaft

Enables Highly Repeatable Return-to-Home Functioning

Since the Z-phase signal is output at the step "0" position (stability point), it can be a substitute for the home sensor (a sensor attached to the motor shaft that detects the home within one revolution).
It also makes it easier to use the Z-phase output signal and TIM output signal* together and improves the repeatability of the return-to-home function.

  • *This is the signal output from the driver each time the motor output shaft rotates 7.2° (3.6° for high-resolution types) from the home position.

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

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 (stability point).

When the Timing of Z-phase Output is not Fixed

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.

Compact Encoder Equipped

When the frame size is 56.4 mm

  • *The orange area in the dimensions diagram is the encoder section.
Encoder Size

Choose Between Voltage Output Type and Line Driver Output Type

A voltage output type and line driver output type are available.
A useful cable for wiring the encoder is also available separately.

Motor Types

Classification Type Frame Size
[mm]
Basic Step Angle
[°]
Wiring Method Additional Function
No Gearhead

Standard

Standard Type
13~85 1.8 Bipolar,
unipolar
Encoder,
electromagnetic brake

High resolution

High-Resolution Type
28~56.4 0.9 Bipolar,
Unipolar
Encoder,
Electromagnetic Brake

Flat

High-Resolution type with encoder (2-phase motor only)
42, 60 1.8 Bipolar None
With Gearhead

SH geared

SH Geared Type
28~90 0.05~0.5 Bipolar,
Unipolar
Encoder

CS geared

CS Geared Type
28~60 0.09~0.36 Bipolar,
Unipolar
None

Light harmonic geared

Light Harmonic Geared
51, 61 0.018~0.036 Bipolar None

Related Products

Combined Drivers (Sold separately)

Drivers for 2-phase stepper motors are also available.

Bipolar Driver
CVD Series Pulse Input Type/RS-485 Communication Type

Right-Angle Type With Mounting Plate
The connector points outward.

Right-Angle Type With Mounting Plate

With Mounting Plate
The connector points upward.

With mounting plate

Without Mounting Plate
The connector points upward.

Without Mounting Plate
  • *The photo shows the pulse input type. The RS-485 communication type is not available without a mounting plate.

Click here for details

Bipolar Driver
CVD Series S Type

Board type compact drivers are available, one to control motor positioning via SPI communication and the other to control by pulse input.

S Type Driver

Click here for details

Unipolar Driver

Unipolar Driver

Click here for details

Introduction to Stepper Motor and Driver Combinations

View More About Stepper Motor PKP Series/CVD Series Pulse Input Drivers
CVD pulse input driver

Stepper Motors PKP Series/CVD Series Pulse Input Driver

You want to operate a stepper motor easily by pulse input. This is a motor and pulse input driver that meets such needs. In pursuit of high efficiency, high torque, and low vibration, even better performance has been achieved.

View More About Stepper Motors PKP Series/CVD Series RS-485 Communication Type Driver
CVD RS-485 driver

Stepper Motors PKP Series/CVD Series RS-485 Communication Type Driver

You want to run a stepper motor under Modbus (RTU) control. You want set data easily on a touch screen. This product combines a motor with a driver that supports RS-485 communication compatible to meet such needs. Up to 31 axes of drivers can be controlled by connecting them to a single host control device.

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Narrow down Products

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Operating Manual

Lineup and Related Information