WHAT IS THE Differance b/w on/off & pid control valve?
- 10 Answers
- 35465 Views
- I also Faced
- E-Mail Answers
Answer Posted / sudipta,iter
on/off control is not closed loop where pid is closed loop
system.
| Is This Answer Correct ? | 8 Yes | 15 No |
Post New Answer View All Answers
In turbine what does term CDP, NI, NH, HSSOC means.
what is orfics working in main steam line. is it increase pressure, velocity of steam flow and dicrease steam flow rate. or any other
how do we commission inergen system?
what is output of FOUNDATION FIELD BUS transmitter
What is the diffrence between ff tx and non ff tx
A PLC is programmed to drive three motors A, B and C as follows : After running motor A for an hour, motor B should get ON and motor A should get OFF. And after running motor B for an hour, motor C should get ON and motor B should get OFF. And after running motor C for an hour, motor A should get ON and motor C should get OFF. (That is, a cyclic repetition with time period one hour) Now, the second condition is: If any motor gone faulty and is tripped, the consecutive motor should get ON and the faulty (tripped) motor should be eliminated from cyclic repetition. The remaining two motors should bear the cyclic repetition of one hour each. (For healthy motor take logic as high and for tripped motor take logic as low) Now, the third condition is: When motor A load(Amps) exceeds 60% of its rated load, motor B should get ON in parallel to motor A. And when both motors A & B are running in parallel, and if their load exceeds 60% of their rated load, motor C should also start in parallel to A & B. [Here the cyclic repetition is eliminated, until their loads become normal(40%)] [Take logic high(1) for load at 60% and logic low(0) for load at 40%] Now draw a flow chart or a ladder diagram to fulfill the above condition.
why we are using magnet for calibration of gas detector?
How the warning lamp of a charging-system is activated ?
we are having yokogawa centum cs3000 dcs in our power plant. i need some of the operator guides NOT to appear in HIS0163 AND HIS 0162 but it shoul appear in HIS0164 HOW TO DO IT?
What is difference between differential pressure & delta pressure?
How can we test a bently nevda 3500/42M accelerometer monitor card by simulating it with test equipment?. what king od of signal (milli volts or volts or or resistance ) we should feed in the terminals of the card?
what is installation and commissioning of (fat & sat) of power plant dcs ? this question keeps in desirable conditions of one company .
How we connect a instrument with ground, Give brief explanation with help of diagram?
How to Calibrate Interface Level Troll in field
why we use impulse line of flow transmitter at 45 deg. angle both side of orifice plate.
