Answer Posted / ram
In pid controller P stands for PROPORTIONAL BAND, I for
INTEGRAL MODE & D for DERIVATIVE MODE. We can also use this
mode for controlling purpose as individual mode. Means we
can use P mode alone or I mode or PI mode PD also. But using
this mode individuals will not provide the desired accurate
output.
So we need to use all the three parameters together to get
good accurate control over process variable.
In this PID mode P(ON-OFF) will try to give the output value
as possible as close to the set value but it will never get
the actual output to the set value. it has some limitations.
So to compensate for the errors remain P mode the I mode is
used. it takes the output value to the set point but after
certain time. it takes some time to get the desired output.
some oscillations are there due to I mode.
So finally to eliminate the damped response of I mode we use
the D mode. it will compensate for the offset error occurs
due to I mode. & try to reaches the desired output level fast.
Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
Tr. Wiring for calibration.
How is PH sensor works ?
what is zero and span ?
Full form of KKS when use DCS.
what is the protection system in solar turbine compressor
What is furnace draft control?
How to measure the dust in chimney(spm)?
Why mixer nd grinder Is example of constant torque load not variable torque load ???
What is the right procedure for adjusting the gap voltage of bently nevada vibration sensor?
Can u tell me the principle of the tc,rtd,level switch,pressure switch ,transmitter(pr flow level temp.),vibration...plz
What are advantages and disadvantage of the ac supply load cell?
principle of dead weight tester ?
how do we commission inergen system?
what different types of problems do occur while doing instrumentation commisioning and how to solve them? please explain in detail
whatis range of marcury filled tempereture gague