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Difference in S-0-0047 and P-0-0047

Difference in S-0-0047 and P-0-0047

ArcherThompson
Established Member

We are seeing a case Where S-0-0047 and P-0-0047 are differing when scoping. S47 is correct but p47 bounces +- 100 degrees occasionally. This causes a fault of course. I cant figure out why they would be different values. 

2 REPLIES 2

Trumpf_Gunnar
Established Member

The "S‑0‑0047, Cyclic position control: Command value" cyclically transmitted/written by the control unit is displayed in the parameter "P‑0‑0047, Cyclic position control: Active command value". When reading S‑0‑0047 (e.g., oscilloscope or drive telegram), the drive provides "P‑0‑0434, Position controller: Position demand value", that takes effect directly at the position controller input.

Trumpf_Gunnar_0-1718266561335.png

 

Thanks, I am not sure why I was struggling with that but I understand now.

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