R
I have a question to the experts of this forum.
I wish to know how is error calculated in PIDFF algorithms. In a general PID algorithm error e = PV-SP. The PID algorithm acts on this error.
But in a PIDFF control algorithm, is error E = PV-SP+FF? Will the PID algorithm act on this E (i.e., PV-SP+FF) OR E is still PV-SP and FF gets added later to the PID output of PV-SP?
thanks and regards
Ritika
I wish to know how is error calculated in PIDFF algorithms. In a general PID algorithm error e = PV-SP. The PID algorithm acts on this error.
But in a PIDFF control algorithm, is error E = PV-SP+FF? Will the PID algorithm act on this E (i.e., PV-SP+FF) OR E is still PV-SP and FF gets added later to the PID output of PV-SP?
thanks and regards
Ritika