How to Use Sabertooth 2x60: Examples, Pinouts, and Specs

The Sabertooth 2x60 by Dimension Engineering is a dual-channel motor driver designed to control two DC motors with a maximum continuous current of 60A per channel. It is a versatile and robust motor driver, ideal for high-power robotics, automation systems, and other applications requiring precise motor control. The Sabertooth 2x60 supports multiple control modes, including analog, R/C, serial, and packetized serial, making it compatible with a wide range of microcontrollers and control systems.

• Robotics (e.g., mobile robots, robotic arms)
• Automated guided vehicles (AGVs)
• Electric wheelchairs
• Conveyor systems
• Remote-controlled vehicles and boats

Below are the key technical details of the Sabertooth 2x60 motor driver:

The Sabertooth 2x60 has several connectors and pins for power, motor outputs, and control signals. Below is a summary of the key connections:

The Sabertooth 2x60 can be used in various control modes. Below are general instructions for using the motor driver in a circuit:

1. Power Supply: Connect a DC power supply (6V to 30V) to the B+ and B- terminals. Ensure the power supply can handle the current requirements of your motors.
2. Motor Connections: Connect the DC motors to the M1A/M1B and M2A/M2B terminals. Ensure proper polarity for the desired motor direction.
3. Control Signals: Depending on the control mode, connect the appropriate control signals to the S1 and S2 pins.

The Sabertooth 2x60 can be controlled via an Arduino UNO using the simplified serial mode. Below is an example code snippet to control two motors:

// Include the SoftwareSerial library for communication
#include <SoftwareSerial.h>

// Define the TX pin for communication with the Sabertooth
#define SABERTOOTH_TX_PIN 10

// Create a SoftwareSerial object for Sabertooth communication
SoftwareSerial sabertoothSerial(SABERTOOTH_TX_PIN, -1); // TX only

void setup() {
  // Begin serial communication with the Sabertooth at 9600 baud
  sabertoothSerial.begin(9600);
}

void loop() {
  // Send commands to control the motors
  // Motor 1 forward at 50% speed (range: 1-127)
  sabertoothSerial.write(64); 
  
  // Motor 2 forward at 75% speed (range: 1-127)
  sabertoothSerial.write(96); 
  
  delay(2000); // Run motors for 2 seconds
  
  // Stop both motors
  sabertoothSerial.write(0); // Motor 1 stop
  sabertoothSerial.write(128); // Motor 2 stop
  
  delay(2000); // Wait for 2 seconds before repeating
}

• Power Supply: Use a power supply capable of providing sufficient current for both motors.
• Heat Dissipation: Ensure adequate ventilation or cooling for the motor driver, especially under high loads.
• Control Mode Selection: Configure the DIP switches on the Sabertooth 2x60 to select the desired control mode. Refer to the user manual for DIP switch settings.

1. Motors Not Running

   • Cause: Incorrect wiring or insufficient power supply.
   • Solution: Double-check all connections and ensure the power supply meets the voltage and current requirements.

2. Overheating

   • Cause: Prolonged operation at high currents without proper cooling.
   • Solution: Add a heatsink or fan to improve heat dissipation.

3. Erratic Motor Behavior

   • Cause: Noise or interference in control signals.
   • Solution: Use shielded cables for control signals and ensure proper grounding.

4. No Response in Serial Mode

   • Cause: Incorrect baud rate or wiring.
   • Solution: Verify the baud rate (default is 9600) and ensure the TX pin of the microcontroller is connected to the S1 pin.

1. Can the Sabertooth 2x60 drive brushless motors?

   • No, the Sabertooth 2x60 is designed for brushed DC motors only.

2. What happens if the current exceeds 60A per channel?

   • The Sabertooth 2x60 has built-in overcurrent protection and will shut down temporarily to prevent damage.

3. Can I use the 5V output to power my Arduino?

   • Yes, but ensure the total current draw does not exceed 50mA.

4. How do I reverse motor direction?

   • Swap the connections on the motor terminals (e.g., M1A and M1B) or send reverse commands via the control signal.

By following this documentation, users can effectively integrate the Sabertooth 2x60 into their projects and troubleshoot common issues.