IACDRIVE I5000 Series Operation Manual page 70

selection
These parameters are used to select PID preset and feedback source.
Notice:
Preset value and feedback value of PID are percentage value.
100% of preset value is corresponding to 100% of feedback value.
Preset source and feedback source must not be same, otherwise PID will be
malfunction.
Function
Code
P9.03
0：Positive. When the feedback value is greater than the preset value, output frequency will be
decreased, such as tension control in winding application.
1: Negative. When the feedback value is greater than the preset value, output frequency will
be increased, such as tension control in unwinding application.
Function
Code
P9.04 Proportional gain (Kp)
P9.05 Integral time (Ti)
P9.06 Differential time (Td)
Optimize the responsiveness by adjusting these parameters while driving an actual load. Use
the following procedure to activate PID control and then adjust it while monitoring the
response.
1. Enabled PID control (P0.03=5)
2. Increase the proportional gain (Kp) as far as possible without creating oscillation.
3. Reduce the integral time (Ti) as far as possible without creating oscillation.
4. Increase the differential time (Td) as far as possible without creating oscillation.
Making fine adjustments:
First set the individual PID control constants, and then make fine adjustments.
Re ducing ove rs hooting
If overshooting occurs, shorten the differential time and lengthen the integral time.
3: Communication
Name
PID output
characteristics
Name Description
0.00~100.00
0.01~10.00s
0.00~10.00s
Setting
Description
Range
0: Positive
0~1
1: Negative
Setting Range
0.00~100.00
0.01~10.00
0.00~10.00
68
Factory
Setting
0
Factory
Setting
0.10
0.10s
0.00s