Receive Analog Signals on a PowerFlex 525 & 755TS

Summary

This video tutorial demonstrates how to configure PowerFlex drives for 4 to 20 milliamp analog control of motor speed, specifically using the PowerFlex 525 and 755 TS models. It covers the necessary steps, including jumper adjustments, wiring connections, and parameter settings for both drive types. The video illustrates the drive's responsiveness to varying input signals from a signal generator, showcasing frequency outputs from 0 to 60 Hz as the input current increases. Additional resources are available in the manuals, with links provided for further assistance.

Takeaways

• 🔌 PowerFlex drives are set up for 0 to 10V DC analog control by default.
• ⚙️ The video demonstrates how to configure PowerFlex drives for a 4 to 20 mA analog signal to control motor speed.
• 📹 The setup includes using a PowerFlex 525 and a PowerFlex 755 TS drive along with a signal generator.
• 🔧 For the PowerFlex 525, move jumper J10 to the 4 to 20 mA position.
• 🔌 Wire to terminals 14 and 15 for proper connection on the PowerFlex 525.
• ⚙️ Change parameter 47 to set the speed reference to 4 to 20 mA input, adjustable via CCW or the faceplate.
• 📊 Starting with a 4 mA input results in a drive output frequency of 0 Hz.
• 📈 Increasing the input to 12 mA changes the output frequency to 30 Hz.
• 📉 At a 20 mA input, the output frequency reaches 60 Hz.
• 🔌 For the PowerFlex 755 TS, an I/O option module is required, specifically a 20-750-2212 in Port 5.
• 🔧 Set the jumpers to current mode and wire to terminals for analog input.
• ⚙️ Adjust parameter 1800 to select analog input for velocity reference.
• 📚 Additional resources and manuals are available in the description for further assistance.

Q & A

What are PowerFlex drives primarily used for?

PowerFlex drives are used to control the speed and torque of electric motors in various applications.

What is the default control mode for PowerFlex drives?

By default, PowerFlex drives are set up for 0 to 10V DC analog control.

How can you configure a PowerFlex 525 drive to accept a 4-20 mA signal?

To configure a PowerFlex 525 drive for a 4-20 mA signal, move jumper J10 to the 4-20 mA position, wire to terminals 14 and 15, and change parameter 47 to set the speed reference to 4-20 mA input.

What happens to the output frequency when the input signal to the PowerFlex 525 drive is increased?

When the input signal is increased from 4 mA to 20 mA, the output frequency changes from 0 Hz to 60 Hz.

What additional hardware is required for the PowerFlex 755 TS drive?

An IO option module, such as the 20-750-2212, is required for the PowerFlex 755 TS drive.

What is the first step in setting up the PowerFlex 755 TS drive for 4-20 mA control?

The first step is to set the jumpers to current mode.

How do you change the velocity reference for the PowerFlex 755 TS drive?

Change parameter 1800 to select Port 5:50, which corresponds to analog input zero value.

What should the analog input low and high values be set to for 4-20 mA operation?

The analog input low value should be set to 4 mA and the high value should be set to 20 mA.

How can users find additional resources for PowerFlex drives?

Users can find additional resources in the manuals for each drive, which are linked in the video description.

Who should you contact if you have questions regarding the PowerFlex drives?

If you have questions, you should reach out to your local ES& account manager or automation specialist.