Hi experts,

I need to control VFD based on the air pressure sensor. the pressure sensor gives value -100pa to +100 pa (0-10vDC). the analog output connected to the VFD. If pressure is -49 pa the analog output need to give 3.8v which is 19 Hz in VFD. then if pressure increases VFD speed need to increase. If air pressure reaches 0 pa. the VFD need to run in 50Hz. 

Thank you

ixo65

In this topic wrote you that you no other versions,

analog scaling for VFD speed control

It's that the reason why you make a new topic?

 Hi ixo65,

Thanks for helping me again. sry, I need this version that's why i created this topic. 

Thank you