INVT Goodrive20-EU VFD Series, Руководство по эксплуатации

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Goodrive20-EU Series VFD Function parameters
-85-
Function
code
Name Description Default Modify
continuously after the time (ignoring the
proportional effect and differential effect) to
achieve the max. frequency (P00.03) or the max.
voltage (P04.31). Shorter the integral time,
stronger is the adjustment
Setting range: 0.00
–10.00s
P09.06
High frequency
differential time
(Td)
This parameter determines the strength of the
change ratio when PID adjustor carries out
integral adjustment on the deviation of PID
feedback and reference.
If the PID feedback changes 100% during the
time, the adjustment of integral adjustor (ignoring
the proportional effect and differential effect) is
the max. frequency (P00.03) or the max. voltage
(P04.31). Longer the integral time, stronger is the
adjusting.
Setting range: 0.00
–10.00s
0.00s
○
P09.07
Sampling cycle
(T)
This parameter means the sampling cycle of the
feedback. The modulator calculates in each
sampling cycle. The longer the sapling cycle is,
the slower the response is.
Setting range: 0.001
–10.000s
0.100s
○
P09.08
PID control
deviation limit
The output of PID system is relative to the
maximum deviation of the close loop reference.
As shown in the diagram below, PID adjustor
stops to work during the deviation limit. Set the
function properly to adjust the accuracy and
stability of the system.
Output frequency
T
T
Feedback value
Bias limit
Reference value
Setting range: 0.0
–100.0%
0.0%
○