Hey there! As a supplier of 15KW VFDs, I often get asked about how to set up torque control on these drives. Torque control is super important as it allows you to precisely manage the rotational force of a motor, which is crucial for many industrial applications. In this blog, I'll walk you through the steps to set up torque control on a 15KW VFD.
Understanding Torque Control
Before we dive into the setup process, let's quickly go over what torque control is. Torque is basically the force that causes an object to rotate. In the context of a VFD (Variable Frequency Drive), torque control enables you to adjust the amount of torque the motor produces according to your specific needs. This is different from speed control, which focuses on regulating the motor's rotational speed.
Prerequisites
Before you start setting up torque control on your 15KW VFD, there are a few things you need to have in place:
- Properly installed VFD: Make sure your 15KW VFD is correctly installed in a suitable environment. It should be mounted securely and all the electrical connections should be tight and properly insulated.
- Compatible motor: The motor you're using with the VFD should be compatible with the drive's specifications. Check the motor's power rating, voltage, and current requirements to ensure they match the VFD.
- Knowledge of the VFD's control panel: Familiarize yourself with the control panel of your 15KW VFD. Different models may have different interfaces, so take some time to read the user manual and understand how to navigate through the menu settings.
Step-by-Step Setup Process
Step 1: Power On the VFD
First things first, power on your 15KW VFD. Make sure the power supply voltage matches the VFD's rated voltage. Once the VFD is powered on, it will go through a self - diagnostic process. Wait for the display to show the normal operating screen.
Step 2: Enter the Parameter Setting Mode
To set up torque control, you need to enter the parameter setting mode of the VFD. Usually, there's a specific button on the control panel to enter this mode. It might be labeled as "SET" or something similar. Press this button to enter the parameter menu.
Step 3: Select the Torque Control Function
In the parameter menu, look for the option related to torque control. This might be listed as "Torque Control Mode", "Torque Regulation", or something along those lines. Use the up and down arrow keys on the control panel to navigate to this option and then press the "ENTER" button to select it.
Step 4: Set the Torque Reference
Once you've selected the torque control function, you need to set the torque reference value. The torque reference determines the amount of torque you want the motor to produce. You can usually set this value in percentage or in Newton - meters (Nm), depending on the VFD's settings.
For example, if you want the motor to produce 50% of its maximum torque, you would set the torque reference to 50. Use the numeric keys on the control panel to enter the desired value and then press "ENTER" to confirm.
Step 5: Configure the Torque Limit
It's important to set a torque limit to prevent the motor from overloading. In the parameter menu, find the option for torque limit. Set a reasonable value based on the motor's specifications and the requirements of your application. For instance, if your motor has a maximum torque rating of 100 Nm, you might set the torque limit to 80 Nm to ensure safe operation.
Step 6: Adjust the Torque Control Gain
The torque control gain affects how quickly the VFD responds to changes in the torque reference. A higher gain value will result in a faster response, but it might also cause the system to be more unstable. A lower gain value will make the response slower but more stable.
In the parameter menu, look for the option related to torque control gain. You can adjust this value by trial and error. Start with a moderate value and then test the system to see how it performs. If the response is too slow, increase the gain; if it's too unstable, decrease the gain.
Step 7: Save the Settings
Once you've set all the necessary parameters for torque control, save the settings. There's usually a "SAVE" or "EXIT" button on the control panel. Press this button to save the settings and exit the parameter menu.
Testing the Torque Control Setup
After you've completed the setup process, it's time to test the torque control. Start the motor and gradually increase the torque reference. Observe the motor's behavior and check if it's producing the desired amount of torque. You can use a torque meter or other measuring devices to verify the torque output.
If you notice any issues, such as the motor not producing enough torque or over - torquing, go back to the parameter menu and adjust the settings accordingly.
Additional Considerations
- Load characteristics: Different loads have different torque requirements. For example, a constant - torque load, like a conveyor belt, requires a consistent amount of torque throughout the operation. A variable - torque load, such as a centrifugal pump, has a torque requirement that varies with the speed. Make sure your torque control settings are adjusted according to the load characteristics.
- Safety precautions: When working with VFDs and motors, always follow safety guidelines. Wear appropriate protective gear and make sure the power is turned off before making any electrical connections or adjustments.
Related Products
If you're looking for other VFD options, we also offer 30KW VFD which is suitable for larger power applications. And if you're using a three - phase motor, our Frequency Drive for Three Phase Motor is a great choice. For more advanced control, check out our Vector Control VFD.
Contact for Purchase and Consultation
If you have any questions about setting up torque control on our 15KW VFDs or if you're interested in purchasing our products, feel free to reach out to us. We're here to help you with all your VFD needs and can provide you with professional advice and support.
References
- VFD User Manuals
- Electrical Engineering Textbooks on Motor Control
- Industry Standards for VFD and Motor Operation