N-files powerflex 525

[ThePLCPeon 0]

Hello there,

I currently have some code that will control a powerflex 525 inverter over ethernet.

I can send it a speed reference and to start/stop etc.

The file that is being written to for a speed reference is N41:2.

The file that is read for speed feedback is N42:2.

Now i have found this listed in an ethernet comms manual for the drive, however i cant seem to find any other information that I can read from the inverter.

I would like to read the amps and the torque from the drive so I can data log and display on the screen.

I was hoping someone here could point me in the direction of a full list of all the N-files available to read from a powerflex 525 drive as I am struggling to find it.

Also worth noting that I am using a micrologix 1400 PLC with explciit messaging in rs logix 500 to communicate with the drive.

Thanks to anyone who can help me.

Edited 5 Jul 2019 by ThePLCPeon

[Joe E. 259]

Here is KB article (access level: everyone) that talks about reading and writing parameters from a PF525 using RSLogix 500 v7.20 and later:
https://rockwellautomation.custhelp.com/app/answers/detail/a_id/721115

You'll probably have to register for a free account with Rockwell to access it.

The only listing I've found of the N-file registers is page 137 of the embedded Ethernet/IP adapter user manual here:
https://literature.rockwellautomation.com/idc/groups/literature/documents/um/520com-um001_-en-e.pdf

See this tech note for a correction to that user manual (access level: everyone):
https://rockwellautomation.custhelp.com/app/answers/detail/a_id/567393

[VFD Guy 13]

If you set up a datalink, you can read the n file like the reference or feedback. This is shown in the user manual