• Changzhou Vic-Tech Motor Technology Co., Ltd.
    Andres Blanco
    The thruster have arrived correctly. I tested them on the ROV and we are very happy with the result. The epoxy interior finish is very good and the power of the motors in relation to the size is quite good.
  • Changzhou Vic-Tech Motor Technology Co., Ltd.
    Gregoire Lange
    The cooperation between Changzhou Vic-Tech Motor Tech and our company was just great. Good understanding of our needs, great willing to solve our problems. I recommend !
  • Changzhou Vic-Tech Motor Technology Co., Ltd.
    David Molevelt
    Professional and clear communication. Order was shipped in time. Counter connectors where added to the shipment. Driver works like we agreed !
  • Changzhou Vic-Tech Motor Technology Co., Ltd.
    Buildstorm Private Limited
    The product works as expected, it was packed nicely. Seller responds very quickly and helps in making a buying decision. They are ready to customize the product for you.
  • Changzhou Vic-Tech Motor Technology Co., Ltd.
    Ashley Griffin
    Shipment was received very quickly. Product was well protected by packaging. Company rep was cordial and kind. A Plus rating!
Contact Person : Kangtai Lee
Phone Number : +86 17715451401
Whatsapp : +8617715451401

Compact DC Motor Controller 2 Phase 4 Wire Stepper Motor Controller SWT-201M

Place of Origin Jiangsu, China (Mainland)
Brand Name VIC-TECH
Certification RoHS
Model Number SWT-201M
Minimum Order Quantity 1 Unit
Price $20~30/unit
Packaging Details Standard export package, or can be customized
Delivery Time 15 work days after confirming the payment
Payment Terms T/T, Western Union, MoneyGram,
Supply Ability 10000 Units per month

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Whatsapp:0086 18588475571

Wechat: 0086 18588475571

Skype: sales10@aixton.com

If you have any concern, we provide 24-hour online help.

Product Details
Motor Type Stepper Motor Voltage 12V
Weight 250g
High Light

micro stepper motor controller


4 wire stepper motor controller

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Product Description

SWT-201M 2 phase stepper motor DC motor driver for 4 wires permanent magnet steper motor and hybrid motor

SWT-201M driver drives two-phase stepping motor. The driver adopts imported module to realize high frequency chopping and constant current drive. It has strong anti-interference, high frequency performance, high starting frequency, control signal and internal signal. It realizes photoelectric isolation, current selection, simple structure, stable operation, good reliability and low noise, and drives all stepping motors below 1.0A.

Since its launch on the market, it has been well received by users, especially in the fields of stage lighting, automation, instrumentation, POS machines, engraving machines, ticket printers, industrial marking printers, semiconductor diffusion furnaces, etc.


Compact DC Motor Controller 2 Phase 4 Wire Stepper Motor Controller SWT-201M 0

Mechanical Dimension:MM


Compact DC Motor Controller 2 Phase 4 Wire Stepper Motor Controller SWT-201M 1

Typical Applications

  • Suitable for stepper motors up to 1A in current

​Product Detail Presentation

Compact DC Motor Controller 2 Phase 4 Wire Stepper Motor Controller SWT-201M 2

Compact DC Motor Controller 2 Phase 4 Wire Stepper Motor Controller SWT-201M 3

Wiring Instructuins

1.  VCC ≤24V connected to DC voltage

2.  A+ connected to stepper motor A phase

4.  A-connected stepper motor A phase

5.  B+ connected to stepper motor B phase

6.  B-connected stepper motor B phase

7.  CP+ connected to external controller +5V output

8.  CP-connected to external controller pulse signal output (forward direction pulse output)

9  CW+ is connected to external controller +5V output

10 CW-Connect to external controller direction signal output (reverse direction pulse output)

Driver FAQ User Answers (Q&A)

(1) What is a stepper motor and a stepper drive?


Stepper motor is a special motor specially designed for precise control of speed and position. Its rotation is operated step by step at a fixed angle (called "step angle"), so it is called stepper motor. Its characteristic is that there is no accumulated error, every pulse signal sent from the controller is received, and the motor runs at a fixed angle under the drive of the driver, so it is widely used in various open-loop control.

The stepping driver is a power amplifier that can operate the stepping motor. It can convert the pulse signal sent by the controller into the power signal of the stepping motor. The speed of the motor is proportional to the pulse frequency, so the control pulse frequency can be precisely adjusted. Speed, the number of control pulses can be accurately positioned.


(2) What is the breakdown of the drive?


The stepper motor is determined by its own unique structure, and the “inherent step angle of the motor” (such as 1.2°/0.6°) is indicated at the factory. However, in many precision control and occasions, the angle of the whole step is too large, affecting the control precision, and the

vibration is too large. Therefore, it is required to complete the inherent step angle of a motor in many steps. This is called a subdivision drive and can realize this function. The electronic device is called a subdivision driver.

(3) What are the advantages of subdivision drivers?

Because the step angle that has passed each step is reduced, the step uniformity is improved, so the control accuracy can be improved.

The vibration of the motor can be greatly reduced. The low-frequency oscillation is an inherent characteristic of the stepper motor. Subdivision is the best way to eliminate it.


It can effectively reduce torque ripple and increase output torque.

These advantages are generally recognized by users and bring them benefits, so it is recommended that you use subdivision drivers.


(4) Why does my motor only work in one direction?

  • The possible direction signal is too weak, or the wiring polarity is wrong, or the signal voltage is too high to burn out the direction current limiting resistor.​
  • The pulse mode does not match, the signal is pulse/direction, the driver must be set to this mode; if the signal is CW/CCW (double pulse mode), the driver must also be in this mode, otherwise the motor will only run in one direction.