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Yokogawa CS3000 issues

2012-10-23View Original

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There is a DB parameter in the PID block; its Chinese translation is \"dead zone\". What does it mean? I have it set to 0.0 here
Reply #22012-10-24
It means that if the change in value is less than the threshold value, it is considered as no change; that’s simply what it means
Reply #32012-10-25
So if this parameter is set to 2.0 in the PID, does that mean that the PID output will not change when the deviation between PV and SV is within 2.0?
Reply #42012-10-25
What I understand is this: if this parameter is set to 2.0 in the PID, then when the deviation is within 2.0, the MV value remains unchanged. According to the official explanation, the blind zone mechanism: when the deviation falls within the width of the blind zone, the change in operational output (DMV) is set to 0 in order to stop any changes in MV.

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