| Topic : All about New technologies |
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Activity:
Question posted: 12 23 2009 15:24:40 +0000,
5 answers, 216 views, last activity
07 06 2010 20:18:08 +0000
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if any knows that plz tell me about that because there is ID fan of boiler his panel of star delta
and it stopped and restart atonce
that's problem for the motor that's why
if u know about that then plz tell me
ok thanks
Most temperature controllers have quite a few parameters which can be set by the user.
One such parameter is the Deadband.
If the temperature set point is 125 degrees , as in your case , then once the controller switches off its output ( when the actual temperature has exceeded the setpoint ) , then the controller output will come on again when the actual temperature has gone below the ( setpoint - deadband ). If the deadband in your controller is 3 degrees , then certainly the controller output will come on again when the temperature falls below 122 degrees.
Another set of parameters are the P , I and D values. Depending on these values , the controller output may go off before the setpoint is reached , so as to minimize overshoot.
Some of the more sophisticated controllers have what is called AUTOTUNE. When this is made on , the controller tunes itself to the process , so as to identify the appropriate values of P , I and D.
If you give the model number of your controller , probably we can get more information from the Internet.
If that proportional value of temp. controller is greater than its set value then definitely it neglet the set point value
ok
Which temp controller u r using?
can u give some report about that ok
bye take care
tell me soon
for controlling speed of Id fan motor we can put vfd in motre , itwill mentain the speed as per require and will avoid frequent on off ,of the motor.
for controlling speed of Id fan motor we can put vfd in motre , itwill mentain the speed as per require and will avoid frequent on off ,of the motor.
for controlling speed of Id fan motor we can put vfd in motre , itwill mentain the speed as per require and will avoid frequent on off ,of the motor.
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IF ANYBODY KNOWS ABOUT THAT PLZ TELL ME ABOUT THAT BECOZ I M SUFFERING FROM A VERY BAD CONDITION DUE TO THIS OK TELL ME SOON GOD BLESS YOU FOR THIS BYE TAKECARE |
If that proportional value of temp. controller is greater than its set value then definitely it neglet the set point value ok Which temp controller u r using? can u give some report about that ok bye take care tell me soon |
Is it possible that temp controller after acheiving his set value like:- 125(set parameter) restart after when it temperature becomes 122? |