User Manual of SY5000 series AC Drive Parameter instrction
~80~
by setting these three parameter values.
P-008 PID regulator proportion Kp
P-009 PID regulator integral Ti
P-010 PID regulator differential Td
P-011 Sampling period Ts
Bigger [P-008] will help speed up the system response, but it will generate
agitation if it is too big and the response is slow if it is too small.
The response is slow and control ability to external interference goes off if
[P-009] value is too big. The response is quick but it will generate agitation if it is too
small. If [P-009] is set as 0.0, the integral doesn’t work.
Bigger [P-010] will help speed up the system response and reduce agitation, but
control ability to external interference will go off. At present [P-010] is reseved, its
value has no impact on the inverter operation
.
[P-011] sampling time which is used to set feedback value
P-012 bias limit of PID regulation
If relative bias value of closed loop system is bigger than setting value of bias
limit, namely bigger than +[P-012] % or less than
－
[P-012] %
，
then use PID
regulator to adjust.
If relative bias value of closed loop system is in the setting range [
－
[P-012] %
，
+[P-012] % ] of bias limit, PID regulator stops to adjust, and output of PID regulator
is unchanged, as shown in below figure.
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