ControlStandardLib 1.4-7 Pidcc Block problem
Hi all
I am facing a problem in ControlStandardLib 1.4-7 Pidcc Block PID_OUTPUT . Sometime the OUTPUT of the PID gives a very large number (i.e -1.#J or 1.$) which is beon the output range (0-100). we even the MV and SP seem to be good . Trend Display is attached with it .. RampSoak is the SP for PID . Can anyone please suggest anything regarding this problem .
Thanks in Advance
Asked 3 years ago
Answers
1
Looks like a divide by zero error.
Has "other logic" been added to this PID ? Eg, adaptive gain, forcing limits, output tracking etc ? What mode is the controller in when this happens ?
Answered 3 years ago
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