Rexroth MI motors KSM01.2B-061C-35N-M1-HG0-SE-NN-D7-NN-FW Bus failure

[Alankar94]

Hi Team,

I require support regarding Rexroth Mi motors KSM where i m getting Bus failure in this total 21 motors are connected similarly and connected to Beckhoff PLC through SERCOS.

So SERCOS communciation error occures intermittently. On the KSM motor Red LED lits ON continuously.

When we trun off and ON then motor works and after few days then again communication error occurs.

We checked Earthing and other connections but still problem occurs.

SERCOS communication breaks and Phase-0 to 4 in Beckhoff shows (---) no any phase

SO requrie support on this.

[Drives_Uwe]

Please check the diagnostic traces of the relevant axes showing the problem. One possible root cause coud be that the cyclic sercos communication is jittering in cycle time. In Beckhoff control there is a special diagnostic menue available which shows the jittering.

Alternatively or additionally send the drive parameter file of an affected axis (in format "all parameters")!