Slide Valve and Slide Stop calculation

Hi All,
I program the screw compressors. But never met with Slide Stop regulation yet.
I have 2 questions:
1. How Vi (from 2.0Vi to 5.0Vi) position is calculated? From which parameters Vi position calculated?
2. How is calculated Slide valve position from 2.0Vi to 5.0Vi?
http://victronix.rajce.idnes.cz/Scre...op/#05_0Vi.jpg
http://victronix.rajce.idnes.cz/Scre...p/#0_2_2Vi.jpg

Victronix Hi, please send me PM
Josef.

Hi Victronix and Josef,

could you please send me the application and details ?
my E-mail is :jahangir.torkian@gmail.com
thanks