Xinje VH6 Series - Page 147

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function diagram of the initial PID value.
Parameter
Name
Range
PA-25
PID operation mode (whether to operate
when shutdown)
0: Not operate when shutdown
1: Operate when shutdown
It is used to select whether the PID continues to calculate in PID shutdown state. In general application, PID
should stop operation in shutdown state.
Parameter
Name
Range
PA-26
PID integral attribute
Ones bit: integral separation
0: invalid
1: valid
Tens bit: whether to stop integration after
output to limit value
0: continue to integral
1: Stop integral
Integral separation:
If the integral separation is set to be effective, when the X terminal integral pause (function 34) is effective, the
integral of PID stops operation, and at this time, only the proportional and differential functions of PID are
effective.
When the integral separation is invalid, the integral separation is invalid no matter whether the multi-function
digital DI is valid or not.
Whether to stop integration after output reached limit value:
After the PID operation output reaches the maximum or minimum value, you can choose whether to stop the
integral action. If stop integral is selected, PID integral calculation will stop at this time, which may help to
reduce PID overshoot.
Parameter
Name
Range
PA-27
PID feedback lost detection value
0.0%: not judge the feedback lost
0.1%~100.0％
PA-28
PID feedback lost detection time
0.0s~30.0s
This function code is used to judge whether PID feedback is lost.