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kumaresnk
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Join Date: Sep 2009
Location: orissa
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thermocouple

10/17/2009 3:12 AM

Here we are using hydraulic cylinders for controlling furnace tilting.we are using pid loop for automatic tilting, They say that before starting loop should be fine tuned with all Kp,Ki,Kd values through trial and error method what are those and for what they shoud be tuned?

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Pathfinder Tags: Thermocouple calibrn
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lyn
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Join Date: Oct 2008
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#1

Re: thermocouple

10/17/2009 8:47 AM

WikiAnswers - How do you calibrate a thermocouple
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MrWannLee
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#2

Re: thermocouple

10/17/2009 9:29 PM

Actlly, Kp stands for proportional gain, Ki, integral gain n Kd stands for Derivative Gain.. It's PID controller, and they should be tuned for getting stabil n unfluatate loop.. just tuning ur voltage n current
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josej
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#3

Re: thermocouple

10/18/2009 1:08 AM

Put KP Value 1 Ti value =0.5 TD VALUe=0.0 In HMI Set point will be straight line , Observe the process value ideally it should be pure sinsoidal wave oscillating with a negliable error around Set point If error is there manipulate Ti by increasing and decraseing the value of Ti untill a pure sine wave is obtained around the set point Regards Jose
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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

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#4

Re: thermocouple

10/20/2009 3:33 AM

Google the Ziegler-Nicholls tuning method.

There may even be an article on this topic in Wikipedia, perhaps?

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maveric_manic
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#5

Re: thermocouple

10/20/2009 11:38 PM

Is this about thermocouples?

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