What is the role of P(Protional), I(Integral) and D
(Derivative) in PID Controller?
- 9 Answers
- 13932 Views
- I also Faced
- E-Mail Answers
Answer Posted / arulnainar
1.P(Proportional): to calculate the error signal (Error
signal means the difference between Process variable(PV)and
Setpoint.(E=SP-PV)-- Present(Howmuch)
2.I(Integral): to remove the offset error. It will decide
howlong the error exist in the cycle.(Iitegral time in RPM
or MPR)--Past(HowLong)
3.D(derivative): It will decide how fast the control action
to remove the error without any overshooting or
undershooting in the process for future cycle.
For practically we can say Howmuch(present), Howlong(Past),
Howfast(Future) respectively P,I,& D.
| Is This Answer Correct ? | 39 Yes | 2 No |
Post New Answer View All Answers
HOW TO SOLVE PROBLEM WITH ENRAF LEVEL TRANSMITTER 854 ATG THAT PASSWARD DO NOT Exist INTO TRANSMITTER TO ADJUST LEVEL WITH PORTABLE PET 847, WRITTEN WRONG PASSWORD , I AM SURE THAT DEFAULT PASSWARD (W2=ENRAF2) IS THIS TRANSMITTER NEED TO REPLACE SOFTWARE AND HOW?
Explain the key components of control loop?
I want to apply for the universities in US,but i got the GRE score of (650+300=950)TOEFL 69/120.Is this score sufficient for applying universities please i am married i need to go to US because my husband didn't get H1 yet.please send me suggestion
can u briefly explain aboutan aryton shunt multirange DC ammeter?
How to find out the current of two motors having same power consumption but different RPM?
Explain PID controller tuning & any one method used for it.
How d.p. Transmitter can be applied to open tank?
How to regulate the flow of Air in 4" line, with max flow of 330 nm3/hr and Pressure of 0.5 bar? please suggest the type of instrument required.
Draw block digram for well head from well to shipping pump?
Which are all the commonly used Bordon tubes in the pressure gauges. Do any one use ASTM A 312 tubes for this purpose?
What is frequency factor in massflow meter? When using frequency output?
How can measure flow in oil line?which type of transmitter is generally used?
, Instrument Index, P&ID review, I/O schedule, datasheet, DCS / Analyzers specifications, loop diagrams, hook-up drawings.
hii my name is sujith...i am preparing for HPVL GET 2010... so ,,,pls help me by send any previous questions or material to my site.....(Msujith_12@in.com) thank q
What is heating effect?
