Technology alarm 103 with S120 CU310

Good morning,

I'm facing an issue with an s120 with cu310 configured as a technology object.

The drive it's ok and the encoder also. If i enable the EPOS in the drive all works fine.

The problem is when i try to control the drive as a technology object in isochronous mode with telegram 105.

The error is: Technology alarm 103 (MC fatal alarm 103)

There seems to be a problem with XIST1 or 2 values.

The configuration of these values it's obtained automatically from Drive Cliq encoder.

I can't understand which is the problem.

This is the configuration of the system:

CPU 1511TF-1 PN - 6ES7 511-1UK01-0AB0 - fw 2.8

TIA PORTAL V16, last update installed

SINAMICS S120  6SL3210-1PE21-8AL0

CU310-2 PN  6SL3040-1LA01-0AA0

Motor 1FK7064-4CF71-1RA0

Encoder AM20DQI: absolute encoder 20 bits (resolution 1048576, encoder-internal 512 S/R) + 12 bits multi-turn (traversing range 4096 revolutions)

I have attached a file containing various screenshots

Thanks for your attention

Hello,

Page 145

https://support.industry.siemens.com/cs/ww/en/view/109766459

Sorry, there was a problem with the file upload.

I had already read the description of error 103. The whole configuration consists of siemens products. The encoder is assigned to telegram 105 in the technology object.

I created the project as in the example of siemens.

Hello,

you wrote about an Epos-Configuration on drive side.

Please do factory setting on drive side, and do a configuration without EPOs, only servo drive with Tel.105 and no additionally functions.

Good morning,

I solved the issue by performing a factory reset of the drives.

Thank you very much!