Want to read Output Frequency of VFD using Arduino Uno through MAX485

Projects Networking, Protocols, and Devices
1

Hi,

In my project, I need to read Output Frequency of VFD using arduino Uno through MAX485.

Manual of Delta VFD :- http://www.realimpeks.co.rs/download/delta_vfd_el.pdf

On Page 4-95(138), In 2103H address output frequency data is stored.

I'm confused which library to use and make program for desired result.

Thanks in advance if there's any help given.

2

It should be straightforward, you need a RS485 interface module. Use the Software Serial on the UNO or one of the serial ports on the MEGA. This is to allow you the normal debugging capability. The signal should be a standard ASYNC signal, probably 8,n,1 as for the baud you will have to do some reading on 4-17 Group 9 Communication Parameters, it will give you the data you need. Have fun!