Therefore, we need to set the parameter to “ParamControl” or 13. In our case, we’re looking to control the relay through software. It’s important to distinguish between the two depending on the application.īy reading the “Output Relay Changes State When…” portion of the table, the user can determine which parameter to use for their specific application. Note 2: The table shows parameters for Relay 1 and Relay 2. Note 1: The image above represents a portion of the table additional settings are available.

Within the table above, we find all the settings that we can set “t076” and “t081” parameters to. PowerFlex 525 - Parameter t076 and t081 Relay Out Settings We can switch the +24VDC signal through the relay or the -24VDC signal.

We must draw +24VDC and -24VDC signals directly from the drive.

We’ll need to take care of the following constraints: It’s important to note that you can set up the other points using the same steps, but the settings will differ. Our goal is to walk you through the process, explain the parameters we’re setting and give you the step-by-step path to getting them setup on your system.įor example purposes, we will be utilizing a single digital input point and a relay output. Therefore, it is confusing to get these configurations right the first time you work on such a solution. Furthermore, each point can be configured to a series of functions. The IO points on the PowerFlex 525 are tied to a certain function by default.

PowerFlex 525 - Control I/O Wiring Diagramįrom this drawing, we can identify the following elements: The PowerFlex 525 series variable frequency drive provides an array of I/O points that are summarized in the datasheet drawing below. PowerFlex 525 Datasheet Part 2/2 Download PowerFlex 525 Available Inputs and Outputs PowerFlex 525 Datasheet Part 1/2 Download We’ve seen the need to integrate closely related sensors into a PowerFlex 525 application this would be the right way to do it. The reason you may want to utilize the IO is to save money on purchasing external components, integrate instrumentation into your drive and save floor space, wiring and cost. In this tutorial, we’re looking to expand on the concepts and demonstrate a way to access and utilize the multiple Input and Output options available on the drive. View Tutorial - PowerFlex 525 VFD Setup Tutorial We’ve written an extensive tutorial on how to get started with these drives in a previous tutorial it covers how to initialize the drive, connect it to an EtherNet/IP based PLC and how to set the right parameters. The drives are compact, versatile and easy to use. The PowerFlex 525 series of Variable Frequency Drives from Allen Bradley is highly utilized and respected within the automation field.

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