Description of Function Codes
MD380 User Manual
- 210 -
)unction Code Parameter Name Setting Range Default
)A
-12 PID feedback ¿lter time 0.00–60.00s 0.00s
)A
-13 PID output ¿lter time 0.00–60.00s 0.00s
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slowing the response of the process closed-loop system.
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drive output frequency but slowing the response of the process closed-loop system.
)unction Code Parameter Name Setting Range Default
)A
-15 Proportional gain Kp2 0.0–100.0 20.0
)A-16 Integral time Ti2 0.01–10.00s 2.00s
)A
-17 Differential time Td2 0.000–10.000s 0.000s
)A
-18
PID parameter switchover
condition
0: No switchover
1: Switchover via DI
2: A
utomatic switchover
based on deviation
0
)A-19
PID parameter switchover
deviation 1
0.0% to )A-20 20.0%
)A
-20
PID parameter switchover
deviation 2
)A-19 to 100.0% 80.0%
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.
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The switchover can be implemented either via a DI terminal or automatically implemented
based on the deviation.
If you select switchover via a DI terminal, the DI must be allocated with function 43 "PID
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If you select automatic switchover, when the absolute value of the deviation between PID
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absolute value of the deviation between PID feedback and PID setting is higher than the
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PID parameters are the linear interpolated value of the two groups of parameter values.
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