SV600 Series User Manual 7 Parameter Description
139
Function
code
Name
Setting range
Default
Property
PA-08
Cut-off frequency of PID
reverse rotation
0.00 ~ maximum frequency
0.00 Hz
☆
In some situations, only when the PID output frequency is a negative value (inverter 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
Name
Setting range
Default
Property
PA-09
PID deviation limit
0.0% ~ 100.0%
0.0%
☆
If the deviation between PID feedback and PID setting is smaller than the value of PA-09, PID
control stops.
Function
code
Name
Setting range
Default
Property
PA-10
PID differential limit
0.00% ~ 100.00%
0.10%
☆
In PID control, the differential operation may easily cause system oscillation. Thus, the PID
differential regulation is restricted to a small range.
Function
code
Name
Setting range
Default
Property
PA-11
PID setting change time
0.00 ~ 650.00 s
0.00 s
☆
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.
Function
code
Name
Setting range
Default
Property
PA-12
PID feedback filtertime
0.00 ~ 60.00 s
0.00 s
☆
PA-13
PID output filter time
0.00 ~ 60.00 s
0.00 s
☆
PA-12 is used to filter the PID feedback, helping to reduce interference on the feedback but
slowing the response of the process closed-loop system.
PA-13 is used to filter the PID output frequency, helping to weaken sudden change of the inverter
output frequency but slowing the response of the process closed-loop system.
Function
code
Name
Setting range
Default
Property
PA-15
Proportional gain Kp2
0.0-100.0
20.0
☆
PA-16
Integral time Ti2
0.01 s ~ 10.00 s
2.00 s
☆
PA-17
Differential time Td2
0.000 s ~ 10.000 s
0.000 s
☆
PA-18
PID parameter switchover
condition
0: Not switchover
1: Switchover by DI
0
☆