Section V Parameter Function Table
81
Multi-step digital voltage
giving
PID giving signal selection, can select keyboard/Rs485, potentiometer, digital voltage,digital
pulse for giving signal.
When P03 is 0, the setting pressure set by the keyboard. 0.0~100.0% is 0 to the maximum
pressure respectively.
difference
operation value
time
time
The PID integral time determines the integral regulation speed,the regulation acts on the
difference between PID feedback and setting value by PID regulator.
When the difference between PID feedback and setting value is 100% , integral regulator
PID regulator ouput=(P01*F12*12.5%)Hz.(single direction PIDregulation,ignores proportion and
differential effect).
If the value is great,the control is stable but response is slow;if the value is little,the system
response is rapid but perhaps surge occurs.
The parameter determines the regulation intensity, the regulation acts on the change ratio of
the difference between PID feedback and setting value by PID regulator.
When the change ratio of the difference between PID feedback and setting value is 100% in
the differential time, PID regulator regulates output to(P01*F12*12.5%)Hz (single direction PID
regulation, ignores proportion and integral effect).
If the value is great, the greater the intensity is, the system surge is to occur more easily
time
time
operation value
difference
The PID Proportion Gain defines regulation intensity of PID regulator, the larger the P is,
the more the intensity is.
When proportion gain is 100%,and the difference between PID feedback and getting value is
100%, PID regulator‟s output is(P01*F12*12.5%)Hz(single direction PID regulation,ignores
differential and integral effect).
Proportion gain is the parameter decides PID regulator‟s response extent.
If the gain is great, the response is rapid, but if too great, the surge will occur; the gain is