GD350A series high-performance multifunction VFD
-198-
Function
code
Name
Description
Default Modify
regulator (ignoring integral and differential
actions), after undergoing continuous
regulation during this time period, can reach
max. output frequency (P00.03) or max.
voltage (P04.31).
The shorter the integral time, the stronger the
regulation intensity.
Setting range: 0.00–10.00s
P09.06
Differential time
(Td)
It determines the intensity of the regulation
made on the change rate of deviation between
PID feedback and reference by PID regulator.
If feedback changes by 100% during this
period, the regulation of differential regulator
(ignoring integral and differential actions) is
max. output frequency (P00.03) or max.
voltage (P04.31).
The longer the derivative time, the stronger
the regulation intensity. Setting range: 0.00–
10.00s
0.00s
○
P09.07 Sampling cycle (T)
It means the sampling cycle of feedback. The
regulator operates once during each sampling
cycle. The larger the sampling cycle, the
slower the response.
Setting range: 0.001–10.000s
0.001s
○
P09.08
Limit of PID control
deviation
It is the max. allowable deviation of PID
system output value relative to closed-loop
reference value. Within this limit, PID regulator
stops regulation. Set this function code
properly to regulate the precision and stability
of PID system.
0.0%
○
