ABB ACH580 Programing to Accept Commands Over Serial Communications.
This video includes a walkthrough on how to program the ABB ACH580 drive to accept Start/Stop and Frequency reference commands over serial communications. How to change the 3rd line of the control panel display to show the Frequency reference over serial comm. Verify that S/S and frequency reference commands are received over serial comm. The ACH580 IO&M is available here: https://bit.ly/ACH580iom