IACDRIVE I5300 Series User Manual page 209

I5300 User Manual
• PA-05 (Proportional gain Kp1)
It decides the regulating intensity of the PID regulator. The higher the Kp1 is, the larger
the regulating intensity is. The value 100.0 indicates when the deviation between PID
feedback and PID setting is 100.0%, the adjustment amplitude of the PID regulator on
the output frequency reference is the maximum frequency.
• PA-06 (Integral time Ti1)
It decides the integral regulating intensity. The shorter the integral time is, the larger
the regulating intensity is. When the deviation between PID feedback and PID setting
is 100.0%, the integral regulator performs continuous adjustment for the time set in PA-
06. Then the adjustment amplitude reaches the maximum frequency.
• PA-07 (Differential time Td1)
It decides the regulating intensity of the PID regulator on the deviation change. The
longer the differential time is, the larger the regulating intensity is. Differential time is the
time within which the feedback value change reaches 100.0%, and then the adjustment
amplitude reaches the maximum frequency.
Function Code
Cut-off frequency of PID reverse
PA-08
rotation
In some situations, only when the PID output frequency is a negative value (AC drive
reverse rotation), PID setting and PID feedback can be equal. However, too high reverse
rotation frequency is prohibited in some applications, and PA-08 is used to determine the
reverse rotation frequency upper limit.
Function Code
PA-09
If the deviation between PID feedback and PID setting is smaller than the value of PA-09,
PID control stops. The small deviation between PID feedback and PID setting will make the
output frequency stabilize, effective for some closed-loop control applications.
Function Code
PA-10
It is used to set the PID differential output range. In PID control, the differential operation
may easily cause system oscillation. Thus, the PID differential regulation is restricted to a
small range.
Function Code
PA-11
The PID setting change time indicates the time required for PID setting changing from 0.0%
to 100.0%. The PID setting changes linearly according to the change time, reducing the
impact caused by sudden setting change on the system.
Parameter Name
Parameter Name
PID deviation limit
Parameter Name
PID differential limit
Parameter Name
PID setting change time
Description of Function Codes
Setting Range
0.00 to maximum frequency
Setting Range
0.0%–100.0%
Setting Range
0.00%–100.00%
Setting Range
0.00–650.00s
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Default
2.00 Hz
Default
0.0%
Default
0.10%
Default
0.00s