S1 series standard inverter
-138-
Function
code
Name
Detailed parameter description
Default
value
Modify
control of unwinding.
P09.04
Proportional gain
(Kp)
This function code is suitable for proportional gain
P of PID input.
It determines the regulation intensity of the whole
PID regulator, the larger the value of P, the
stronger the regulation intensity. If this parameter
is 100, it means when the deviation between PID
feedback and reference is 100%, the regulation
amplitude of PID regulator (ignoring integral and
differential effect) on output frequency command
is the max. frequency (ignoring integral and
differential actions).
Setting range: 0.00
–100.00
1.80
○
P09.05
Integral time (Ti)
It determines the speed of integral regulation
made on the deviation between PID feedback and
reference by PID regulator. When the deviation
between PID feedback and reference is 100%,
the regulation of integral regulator (ignoring
integral and differential actions), after undergoing
continuous regulation during this time period, can
reach Max. output frequency (P00.03)
The shorter the integral time, the stronger the
regulation intensity.
Setting range: 0.00
–10.00s
0.90s
○
P09.06
Derivative 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)
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
○
