Schneider Modicon M340 CanOpen error

[david_n]

Hi,

I'm configuring the M340 controller with ATV320 inverters via Canopen. Everything was fine until today, when after starting the electrical cabinet, the CPU cannot communicate with the inverters. Nothing has been changed since yesterday not even touched.

Below are errors from the CPU and Canopen:

CPU:
https://pasteboard.co/6PwOb5TpPxKP.jpg

Canopen:
https://pasteboard.co/SZOAaTLiA6Lf.jpg

CPU is in RUN so I/O modules run normally.

Please help me solve the problem,

greetings

 

[chud]

With the ATV320 this is normal behaviour after a power cycle.
In the slaves you need to specify what the master does to the slave (atv320) config at power up. By default it is set to reset, which is dumb.
Attached is picture showing the culprit settings in default.
In the picture I have already changed them