Mastering Servo Testers: Testing Motors & ESCs Made Easy

Table of Contents:

1. Introduction
2. What is a Servo Tester?
3. How to Use a Servo Tester for Testing Servos 3.1. Powering the Servo Tester 3.2. Adjusting Servos with the Servo Tester
4. Using a Servo Tester to Test Speed Controllers 4.1. Connecting the Speed Controller 4.2. Operating the Speed Controller in Manual Mode
5. Using a Servo Tester to Test Motors 5.1. Checking the Direction of the Motor 5.2. Reversing the Motor Rotation
6. Using a Servo Tester for Larger Motors
7. Conclusion
8. Tips for Using a Servo Tester 8.1. Adjusting the LED Brightness 8.2. Additional Tips for Using a Servo Tester
9. Frequently Asked Questions (FAQs) 9.1. Can I use any Servo Tester to test motors and speed controllers? 9.2. Can I use a Servo Tester to test other electronic devices? 9.3. Is a Servo Tester necessary for hobbyists? 9.4. Is there any alternative to a Servo Tester? 9.5. How to choose the right Servo Tester?

Testing Servos, Speed Controllers, and Motors with a Servo Tester

Servo testers are a versatile tool in the world of hobby electronics. While their main function is to test servos, they can also be used to test speed controllers and motors. In this article, we will explore how to make the most of a servo tester and use it to test various electronic components. So, let's dive in!

Introduction

Before we dive into the details, let's first understand what a servo tester is. A servo tester is a small electronic device that allows you to control and test servos, speed controllers, and motors. It is typically used in the field of radio control (RC) hobby, where precise control of these components is crucial. A servo tester provides a convenient and efficient way to test and troubleshoot these electronic devices without the need for a complicated setup.

What is a Servo Tester?

A servo tester, such as the Turnigy servo tester mentioned in the introduction, is a compact device that helps in testing and adjusting servos. It is powered by a 4 to 5-cell nickel-metal hydride (NiMH) battery and features a manual mode that allows you to control the servo movement by turning a dial. The servo tester is widely used in the RC hobby industry to ensure smooth operation and precise control of servos.

How to Use a Servo Tester for Testing Servos

Using a servo tester for testing servos is a straightforward process. Here's a step-by-step guide on how to do it:

Powering the Servo Tester

1. Connect the 4 to 5-cell NiMH battery to the servo tester's power supply.
2. Ensure the servo tester is set to the manual mode, which is the default setting.
3. Plug in the servo to the servo tester.

Adjusting Servos with the Servo Tester

1. With the servo connected, turn the dial on the servo tester.
2. Observe the movement of the servo as you turn the dial.
3. Adjust the servo to the desired position or check its movement range.

Using a servo tester to test servos is a valuable tool for hobbyists and professionals alike. It allows for quick and easy testing, adjustment, and troubleshooting of servos without the need for complex setups or special tools.

Using a Servo Tester to Test Speed Controllers

In addition to testing servos, a servo tester can also be used to test speed controllers. Speed controllers are the electronic devices that control the speed and direction of motor rotation. By utilizing a servo tester, you can conveniently test the functionality of speed controllers without the need for additional equipment. Here's how you can do it:

Connecting the Speed Controller

1. Take the servo lead from the speed controller.
2. Instead of plugging it into the power side, connect it to the servo side of the servo tester.

Operating the Speed Controller in Manual Mode

1. Set the servo tester to manual mode.
2. Slowly turn the dial on the servo tester to observe the motor's movement.
3. Use this feature to check the speed controller's functionality and adjust it accordingly.

Utilizing a servo tester to test speed controllers provides a cost-effective and efficient way to ensure proper operation and control of electronic devices in RC applications.

Using a Servo Tester to Test Motors

Apart from servos and speed controllers, a servo tester can also be used to test motors. This capability can be helpful in verifying the direction and functionality of motors before installing them in RC models. Here's how you can use a servo tester to test motors:

Checking the Direction of the Motor

1. Connect the motor to the servo tester.
2. Ensure the servo tester is in manual mode.
3. Slowly turn the dial on the servo tester and observe the motor's rotation.

Reversing the Motor Rotation

1. If the motor is rotating in the wrong direction, simply unplug the speed controller's two wires.
2. Reverse the connection of the wires by swapping them.
3. The motor will now rotate in the correct direction when the servo tester is used.

Using a Servo Tester for Larger Motors

While the examples mentioned above cover smaller motors, a servo tester can also be used for larger motors. The process is similar, but the components and power requirements may vary. It is essential to use a servo tester and speed controller that are compatible with the specific motor's size and power specifications.

Conclusion

In conclusion, a servo tester is a versatile tool that can be used for more than just testing servos. By utilizing this small device, hobbyists and professionals can conveniently test and troubleshoot speed controllers and motors. Whether you need to adjust servo positions, check speed controller functionality, or verify motor rotation, a servo tester provides an efficient and easy-to-use solution. With its compact design and user-friendly interface, it is a valuable addition to any hobbyist's toolkit.

Tips for Using a Servo Tester

Here are a few additional tips to maximize your usage of a servo tester:

Adjusting the LED Brightness

The LED indicators on some servo testers can be quite bright and dazzling. To make them easier on the eyes, you can use a marker pen to darken the tops of the LEDs. This simple adjustment can improve visibility and prevent discomfort when using the servo tester.

Additional Tips for Using a Servo Tester

• Always read the manufacturer's instructions and guidelines before using a servo tester to ensure safe and proper usage.
• Secure the servo or motor to a stable surface or bench before testing to prevent accidents.
• Double-check the connections and polarity to avoid damage to the servo tester, speed controllers, or motors.
• Use the servo tester in a well-ventilated area and avoid exposing it to extreme temperatures or moisture.

Frequently Asked Questions (FAQs)

Q: Can I use any servo tester to test motors and speed controllers?

A: While most servo testers have similar functionality, it's essential to choose a servo tester suitable for the specific motors and speed controllers you are using. Refer to the manufacturer's instructions and specifications to ensure compatibility.

Q: Can I use a servo tester to test other electronic devices?

A: While servo testers are primarily designed for servos, motors, and speed controllers, you can experiment with other electronic devices. However, note that the results may vary, and it's best to consult the device's manufacturer or seek expert advice for proper testing methods.

Q: Is a servo tester necessary for hobbyists?

A: While a servo tester may not be an absolute necessity for all hobbyists, it can greatly simplify the testing and troubleshooting process. It saves time, reduces the risk of damage during testing, and provides precise control over servos, speed controllers, and motors.

Q: Is there any alternative to a servo tester?

A: Yes, some RC transmitters have built-in servo testing functionality. However, using a dedicated servo tester offers more convenience, as it provides specialized features and saves wear and tear on the transmitter.

Q: How to choose the right servo tester?

A: When choosing a servo tester, consider factors such as compatibility with the devices you intend to test, ease of use, user reviews, and the reputation of the manufacturer. Additionally, check if the servo tester offers features like adjustable voltage output, adjustable refresh rate, and the ability to test multiple servos at once.

Resources:

• Hobbyking