if change the pid in D value so what action.

Question Posted / s k g

2 Answers
8477 Views
Siemens, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

if change the pid in D value so what action...

Answer / himanshu apte

As i understand the question, If 'D' value in PID is
changed, the process responds to the rate of change of
error between the PV & SP. In operation, controller first
compares current PV with the last PV value. If there is a
change in slope of PV, controller determines the output at
a future point in time. This future point in time
represents the derivative setting. Derivative mode
increases the output by that amount.
Advantage: Rapid o/p reduces time required to bring PV to
SP.
Disadvantage: Dramatically amplifies noise signals & can
cause cycling in fast process.

Is This Answer Correct ?

14 Yes

0 No

if change the pid in D value so what action...

Answer / swatihendre

If D increased then output response will be fast and if D
decreased then output response will slow

Is This Answer Correct ?

9 Yes

1 No

Post New Answer

More Instrumentation Interview Questions

why we used for range in pnumatic 3-15 psi and current 4-20 ma?

11 Answers Jindal,

i want interview questions about PROCESS CONTROL INSTRUMENTATION , SENSORS AND TRANSDUCERS IF ANY BADY KNOW ABOUT THAT PLEASE SEND TO MY MAIL karumudi1003@gmail.com

8 Answers Honeywell, Reliance,

what is plc? breif explain

3 Answers APL,

what is function of vibration, and how is it work, explain with difination

1 Answers Bapco Bahrain Petroleum Company,

What is the difference between a double acting and single acting positioner? what type of valves use single acting positioners?

1 Answers AquaTech, NamPower, Samson Resources,

Draw a 3 element level control loop and explain

1 Answers CCIE,

hello friends, can you please send me the model paper or question paper to be prepared for hpcl examinations????????? You can mail me at rahim_here@yahoo.com waiting for your reply........... help me .. plz.....

0 Answers

Sir,I am going to sit for IOCL written test exam. recently.Can anyone tell me the name of 'Objective type Question Book on Instrumentation Engineering ' which will help me. Pl. mail to bidyut_71@rediffmail.com / bidyut.saha2008@indiatimes.com / bidyut.saha09@yahoo.in

0 Answers

An RTD is a_________________________.it works as follows

2 Answers

Why hunting will occour in control valve?

6 Answers

Can anybody explain what is the different between ESD & PLC

1 Answers ADCO,

what is modbus,profibus,fieldbus

2 Answers

For more Instrumentation Interview Questions Click Here