Shihlin SA3 Series, Руководство пользователя

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PID parameter group 08
PARAMETER DESCRIPTION 231
5.9.4 PID filter setting

Filter can reduce interference in system, but will reduce response performance.
Parameter Name Default Setting Range Content
08-24
P.711 PID target signal filter
time
0.00s 0～650.00s Set PID target signal low-pass filter time constant
08-25
P.712 PID feedback signal
filter time
0.00s 0～60.00s Set PID feedback signal low-pass filter time constant
08-26
P.713 PID output signal filter
time
0.00s 0～60.00s Set PID output signal low-pass filter time constant
PID filter time constant

08-24
(P.711)
is used to set PID target signal filter time constant,
which can
reduce the impact caused by PID
target signal sudden change in the system.

08-25
(P.712)
is used to set PID feedback signal filter time constant, which can reduce interference in feedback
signal, but will lower system response.

08-26(P.713) is used to set PID output signal filter time constant, which can reduce sudden change of PID output
frequency effectively,
but will lower system response.
5.9.5 PID deviation control limit

If deviation between PID target and PID feedback is smaller than 08-27 value, PID won’t change output frequency.
Parameter Name Default Setting Range Content
08-27
P.714 PID deviation control
limit
0.00% 0～100.00%
If deviation between PID target and PID feedback is smaller
than 08-27 value, PID won’t change output frequency.
PID deviation limit
 08-27(P.714) is used to set PID deviation control limit. When deviation between target and feedback is less than
08-27(P.714), PID will stop adjusting output frequency, so when deviation is relatively small, output frequency
will remain unchanged, which is very effective for some closed-loop system.
Setting
Setting