Dear experts,

I have a schneider SPD310 diff pressure transmitter which gives a (0-10v) that range was -100 to 100 pa. Also, i need to control the VFD speed(0-10v) from analog output based on this air pressure. If air pressure goes to 80pa then the analog output should be 0. if pressure is in minus it should give 10v. then the VFD will run according to the air pressure. kindly, help for this analog scaling.

thank you

ixo65

Try this.

 Hi ixo65,

Thanks for helping me.

I have one doubt, In this program if pressure going below minus, it showing more than 10v. but physically it'll come 10v right? 

ixo65

Try this.

 also, I need one help. kindly, help to convert this signals. 

If the pressure sensor -100pa to 60pa VFD will run in full speed (analog output=10v). after reaching the 60 pa the VFD slowly reduces the speed and then after reaching the 80pa, the analog output should be 0 and VFD will off.

kindly, give calculation for this also,

thank you

ixo65

 

Riyasa

 

ixo65

Try this.

 also, I need one help. kindly, help to convert this signals. 

If the pressure sensor -100pa to 60pa VFD will run in full speed (analog output=10v). after reaching the 60 pa the VFD slowly reduces the speed and then after reaching the 80pa, the analog output should be 0 and VFD will off.

kindly, give calculation for this also,

thank you

Is this the last wish or are there more to come? 

 No this is last. kindly help

Thank you

 It's same like ixo65 program, but for me better to see it's directly 0.0V or 10.0V you can check my upgrade

ixo65

Second version.