INVT Goodrive350 Series

Goodrive350 series high-performance multi-function inverter Chapter 6
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Function
code
Name
Detailed parameter description
Default
value
Modi
fy
feedback signal is less than PID reference, which
requires inverter output frequency to increase for
PID to reach balance, eg, tension PID 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 the
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 the max. output frequency (P00.03)
The longer the derivative time, the stronger the
regulation intensity.
0.00s
○