- 119 -
Figure 6-27 shows the function of the PID initial value
PA-25
PID Integral attribute
Factory default
00
Set range
Bit
Integral separation
0
：
invalid 1
：
valid
Ten
Whether to stop the integration after
outputting the limit value
0
：
Continue to score 1
：
stop to score
Integral separation
If the integral separation is valid, when the multi-function digital S integral is suspended
(function 22) is valid, the integral PID integral of the PID stops operation, and PID is only
proportional and differential.
When the integral separation selection is invalid, the integral separation is invalid
regardless of whether the multi-function digital S is valid or not.
Whether to stop the points after outputting the limit:
After the PID operation output reaches the maximum or minimum value, you can choose
whether to stop the integration effect. If the stop is selected, the PID integral stops
counting at this time, which may help to reduce the overshoot of the PID.
PA-26
PID Feedback loss detection
value
Factory
default
0.0%
Set range
0.0%
：
Do not judge feedback loss
0.1%
～
100.0%
PA-27
PID Feedback loss test value
Factory
default
0.0s
Set range
0.0s
～
20.0s
This function code is used to determine if PID feedback is lost.
When the PID feedback is less than the feedback loss detection value PA-26 and the
duration exceeds the PID feedback loss detection time PA-27, the inverter alarm fault
FU31 is processed and processed according to the selected fault handling method.
