Post by hardik on Sept 30, 2015 8:43:13 GMT
Dear all,
I have made one program for PID controlling using relay/SSR control and it also runs very sharp tuned. Now I want to operate PID output for linear control i.e 4-20mA. I have one three phase power controller and it triggers with thyristor gate pulses.
Thyristor is controlled by 4-20mA.
So according to comparison error between PV and SV, the PID output should give 4-20mA to our LX3V-4DA. I have used heaters as controlled devices. So for sensor, i have used LX3V-4TC module.
Whatever the value i receive on 4TC from Heater, the comparison takes place and PID output accurs, and gives 4-20mA on 4DA.
I want to know how can we set the PID output range according to the count range of LX3V-4DA module?
Attaching program which i made. pid drive.wcp (42.07 KB)
I have made one program for PID controlling using relay/SSR control and it also runs very sharp tuned. Now I want to operate PID output for linear control i.e 4-20mA. I have one three phase power controller and it triggers with thyristor gate pulses.
Thyristor is controlled by 4-20mA.
So according to comparison error between PV and SV, the PID output should give 4-20mA to our LX3V-4DA. I have used heaters as controlled devices. So for sensor, i have used LX3V-4TC module.
Whatever the value i receive on 4TC from Heater, the comparison takes place and PID output accurs, and gives 4-20mA on 4DA.
I want to know how can we set the PID output range according to the count range of LX3V-4DA module?
Attaching program which i made. pid drive.wcp (42.07 KB)
