Description of Function Codes
MD380 User Manual
- 214 -
Function Code
Parameter Name
Setting Range
Default
FA-25
PID integral property
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00
0: Invalid
1: Valid
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operation when the output reaches the limit)
0: Continue integral operation
1: Stop integral operation
Integral separated
If it is set to valid, , the PID integral operation stops when the DI allocated with function
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take effect.
If it is set to invalid, integral separated remains invalid no matter whether the DI
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If "Stop integral operation" is selected, the PID integral operation stops, which may help
to reduce the PID overshoot.
Function Code
Parameter Name
Setting Range
Default
FA-26
Detection level of PID
feedback loss
0.0%: No detection
0.1%–100.0%
0.0%
FA-27
Detection time of PID
feedback loss
0.0–20.0s
0.0s
These parameters are used to judge whether PID feedback is lost.
If the PID feedback is smaller than the value of FA-26 and the lasting time exceeds the
value of FA-27, the AC drive reports Err31 and acts according to the selected fault protection
action.
Function Code
Parameter Name
Setting Range
Default
FA-28
PID operation at stop
0: No PID operation at stop
1: PID operation at stop
0
It is used to select whether to continue PID operation in the state of stop. Generally, the PID
operation stops when the AC drive stops.
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