ATV312 faults "SLF"

[Eden]

Hello everybody, 

I use PLC to control inverter ATV312 by modbus RTD, but the light at PLC's not flashing and the inverter showed "SLF", i know it mean modbus's fault and inverter cannot communicate with PLC. I checked PLC's program. Please help me fix it.

Thanks so much and sorry about my english!

[박주영]

There is a video about < ATV312 faults "SLF" > on YouTube. Hope this helps.

How to reset SLF Serial Link Fault on ATV312 | Schneider Electric Support - YouTube

Video: How do you clear the SLF serial link fault on the ATV312 drives on a drive that is using (or ...

[BJacqz]

In addition to the first answer, I would ask, was it working properly before, or is it a commissionning ? Anyway, you could have a look on the programming manual about communication.

Have a look on P97 about communication on the document I join to this conversation.