Dear Experts, I come before you, humbly seeking advice...

I have added 3 drives to the "middle" of an existing line of interconnected S210 drives. The PN line is connected to the PLC through IRT switch. When I turn OFF/ON the machine or Stop/Start the CPU, all drives on the line come to working state, except these 3. They dvelve with F09 error on the display with F01910 Fieldbus: setpoint timeout alarm in the online diagnostic. Manual ack is required to get them to ok state. Plugging out/in the power supply also does the job.

Settings for working/non working drives seem to be the same. Maybe there is some hidden parameter I missed...? I'm running out of ideas...

Any advice would be appreciated...

richmi

TechSupport for SINAMICS S210

Hello,

please try to connect the three new S210s at the end of the line or at the second port of the CPU.

Best regards

TechSupport for SINAMICS S210

 Hello,

I've already tried that, did not help...