INVT Goodrive350-19 Series Operation Manual page 278

Goodrive350-19 series VFD for crane
Function
Name
code
PID output
P09.03 characteristics
selection
Proportional gain
P09.04
(Kp)
P09.05 Integral time (Ti)
Differential time
P09.06
(Td)
Description
10: Reserved
11: 216 communication
Note: The reference channel and feedback
channel cannot be duplicate. Otherwise,
effective PID control cannot be achieved.
0: PID output is positive. When the feedback
signal is greater than the PID reference value,
the output frequency of the VFD will decrease to
balance the PID. Example: PID control on strain
during unwinding.
1: PID output is negative. When the feedback
signal is greater than the PID reference value,
the output frequency of the VFD will increase to
balance the PID. Example: PID control on strain
during unwinding.
The function is applied to the proportional gain P
of PID input.
P determines the strength of the whole PID
adjuster. The value 100 indicates that when the
difference between the PID feedback value and
given value is 100%, the range within which the
PID regulator can regulate the output frequency
command is the max. frequency (ignoring
integral function and differential function).
Setting range: 0.00–100.00
Used to determine the speed of the integral
adjustment on the deviation of PID feedback
and reference from the PID regulator.
When the deviation of PID feedback and
reference is 100%, the integral adjuster works
continuously during the time (ignoring
proportional and differential function) to achieve
the max. output frequency (P00.03) or the max.
voltage (P04.31). Shorter integral time indicates
stronger adjustment.
Setting range: 0.00–10.00s
Used to determine the strength of the change
ratio adjustment on the deviation of PID
-266-
Function parameter list
Default Modify
○
0
○
1.80
○
0.90s
○
0.00s