How to Use TB6600: Examples, Pinouts, and Specs

The TB6600 is a high-performance stepper motor driver designed to control bipolar stepper motors with precision and reliability. It supports adjustable current settings, microstepping capabilities, and includes built-in thermal protection, making it a versatile choice for demanding applications. The TB6600 is widely used in CNC machines, 3D printers, robotics, and other motion control systems where precise motor control is essential.

• CNC machines for precise cutting and engraving
• 3D printers for accurate layer deposition
• Robotics for controlled motion
• Automated conveyor systems
• Industrial automation projects

The TB6600 stepper motor driver is designed to handle a wide range of stepper motors and offers robust performance. Below are its key technical details:

The TB6600 has several input and output terminals for connecting to the stepper motor, power supply, and control signals. Below is the pin configuration:

1. Connect the Stepper Motor:

   • Connect the stepper motor's two coils to the A+/A- and B+/B- terminals of the TB6600.
   • Ensure the wiring matches the motor's datasheet to avoid incorrect connections.

2. Power Supply:

   • Connect a DC power supply (9V to 42V) to the VCC and GND terminals.
   • Ensure the power supply can provide sufficient current for the motor and driver.

3. Control Signals:

   • Connect the PUL+, DIR+, and ENA+ terminals to the control board (e.g., Arduino UNO).
   • Connect the corresponding PUL-, DIR-, and ENA- terminals to the ground of the control board.

4. Set the Current and Microstepping:

   • Use the DIP switches on the TB6600 to configure the desired current limit and microstepping mode.
   • Refer to the TB6600 datasheet for the DIP switch settings.

5. Test the Setup:

   • Send pulse and direction signals from the control board to the TB6600.
   • Observe the motor's movement to ensure proper operation.

• Heat Dissipation: The TB6600 can generate heat during operation. Use a heatsink or active cooling if necessary.
• Signal Voltage: Ensure the control signals (PUL, DIR, ENA) are within the 3.3V to 5V range.
• Wiring: Double-check all connections before powering the circuit to avoid damage to the driver or motor.

Below is an example code to control a stepper motor using the TB6600 and an Arduino UNO:

// Define control pins for the TB6600
const int stepPin = 3;  // Pin connected to PUL+ (Pulse)
const int dirPin = 4;   // Pin connected to DIR+ (Direction)

void setup() {
  // Set the control pins as outputs
  pinMode(stepPin, OUTPUT);
  pinMode(dirPin, OUTPUT);

  // Set initial direction
  digitalWrite(dirPin, HIGH); // HIGH for one direction, LOW for the other
}

void loop() {
  // Generate step pulses
  digitalWrite(stepPin, HIGH); // Set step pin HIGH
  delayMicroseconds(500);      // Wait for 500 microseconds
  digitalWrite(stepPin, LOW);  // Set step pin LOW
  delayMicroseconds(500);      // Wait for 500 microseconds
}

• Adjust the delayMicroseconds() value to control the motor speed.
• Change the digitalWrite(dirPin, HIGH/LOW) to reverse the motor's direction.

1. Motor Not Moving:

   • Cause: Incorrect wiring or loose connections.
   • Solution: Verify all connections, especially the motor coils and control signals.

2. Driver Overheating:

   • Cause: Excessive current or insufficient cooling.
   • Solution: Reduce the current setting using the DIP switches or add a heatsink/fan.

3. Erratic Motor Movement:

   • Cause: Noise in control signals or incorrect microstepping settings.
   • Solution: Use shielded cables for control signals and verify DIP switch settings.

4. No Response from Driver:

   • Cause: Incorrect power supply voltage or damaged driver.
   • Solution: Check the power supply voltage and replace the driver if necessary.

• Q: Can the TB6600 drive unipolar stepper motors?
  A: No, the TB6600 is designed for bipolar stepper motors only.

• Q: What is the maximum step frequency supported?
  A: The TB6600 supports step frequencies up to 200 kHz.

• Q: Can I use a 12V power supply with the TB6600?
  A: Yes, the TB6600 supports input voltages from 9V to 42V DC.

• Q: How do I enable/disable the driver?
  A: Use the ENA+ and ENA- terminals. Leave them disconnected if not needed.

By following this documentation, you can effectively use the TB6600 stepper motor driver in your projects.