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PA.12
PID feedback filter time
Default
0.00s
Setting Range
0.00s ~ 60.00s
PA.13
PID output filter time
Default
0.00s
Setting Range
0.00s ~ 60.00s
PA.12 is used to filter the PID feedback, helping to reduce interference on the feedback but slowing down 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 AC drive output frequency but slowing
down the response of the process closed-loop system.
PA.15
Proportional gain Kp2
Default
20.0
Setting Range
0.0 ~ 100.0
PA.16
Integral lime Ti2
Default
2.00s
Setting Range
0.01s ~ 10.00s
PA.17
Differential lime Td2
Default
0.00s
Setting Range
0.00 ~ 10.000
PA.18
PID parameter switchover condition
Default
0
Setting Range
0
No switchover
1
Switchover via S
2
Automatic switchover based on deviation
PA.19
PID parameter switchover deviation 1
Default
20%
Setting Range
0.0% ~ PA.20
PA.20
PID parameter switchover deviation 2
Default
80%
Setting Range
PA.19 ~ 100.0%
In some applications, PID parameters switchover is required when one group of PID parameters cannot satisfy the requirement
of the whole running process. These parameters are used for switchover between two groups of PID parameters.
Regulator parameters PA.15 to PA.17 are set in the similar way as PA.OS to PA.07.
The switchover can be implemented either via S terminal or automatically implemented based on the deviation.
If you select switchover via S terminal, the S must be allocated with function 43
“PID
parameter switchover". If the S is OFF,
group 1 (PA.05 to PA.07) is selected. If the S is ON, group 2 (PA.15 to PA.17) is selected.
If you select automatic switchover, when the absolute value of the
deviation between PID feedback and PID setting is smaller than the value of PA.19, PlD parameter selects group 1. When the
absolute value of the deviation between PID feedback and PID setting is higher than the value of PA.20, PID parameter selects
group 2. When the deviation is between PA.19 and PA.20, the PID parameters are the linear interpolated value of the two groups
of parameter values.
Figure 4-24 PID parameters switchover
PA.21
PID initial value
Default
0.0%
Setting Range
0.0% ~ 100.0%
Summary of Contents for elmatic ED2000
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