Siemens Servo

Hello

i got one Siemens 1HU 3056-0AF01.
The seller has one Siemens 1HU 3056-0AF01-Z

Im wondering what is the difference between them, what does the letter Z means?

They most likely are identical motors with the -Z indication an option of some kind, it could be anything from a brake to a particular encoder option.
If you can obtain a picture, at least you may be able to see if any physical differences.
Al.

Hi

There is no Physical differences so its probably a brake or an encoder option as you say.Thank you for you help