INVT Goodrive270 Series Operation Manual page 218

Goodrive270 series VFD for fan and pump
Function
Name
code
PID feedback
P09.02
source
PID output
P09.03 characteristics
selection
Proportional gain
P09.04
(Kp)
P09.05 Integral time (Ti)
Description
Used to select the PID feedback channel.
0: AI1
1: AI2
2: AI3
3: High-speed pulse HDIA
4: Modbus communication
5: PROFIBUS/CANopen communication
6: Ethernet communication
7: Reserved
8: PROFINET 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
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Function parameter list
Default Modify
○
0
○
0
○
1.80
○
0.90s