Salicru CV10-002-S2, User Manual

Page: 56 / 104

56 - 104 Function Parameters
Function
code
Name Detailed instruction of parameters
Default
value
Modify
P09.04
Proportional
gain (Kp)
The function is applied to the proportional gain P of PID input. P
determines the strength of the whole PID adjuster. The parameter of
100 means that when the offset of PID feedback and reference
value is 100%, the adjusting range of PID adjustor is the Max.
Frequency (ignoring integral function and differential function).
Higher value can reach the target control value faster, but it
may cause oscillation.
The setting range: 0.00~100.00
1.00 ○
P09.05
Integral time
(Ti)
This parameter determines the speed of PID adjustor to carry out
integral adjustment on the deviation of PID feedback and reference.
When the deviation of PID feedback and reference is 100%, the
integral adjustor works continuously after the time (ignoring the
proportional effect and differential effect) to achieve the Max.
Frequency (P00.03). Shorter the integral time, stronger is the
adjustment. If the value is reduced, response will be faster but setting
too low may lead to controller oscillation. Setting range: 0.01~10.00s
0.10s ○
P09.06
Differential time
(Td)
Set the output value to the variation of the error. If differential
time is set to 0.01 s and the percentage variation of error per
1s is 100%, 1% per 10 ms is output.
Setting range: 0.00~10.00s
0.00s ○
P09.07
Sampling cycle
(T)
This parameter means the sampling cycle of the feedback.
The modulator calculates in each sampling cycle. The longer
the sapling cycle is, the slower the response is.
Setting range: 0.00~100.00s
0.10s
○
P09.08
PID control
deviation limit
As shown in the diagram below, PID adjustor stops to work during the
deviation limit. Set the function properly to adjust the accuracy and
stability of the system.
Setting range: 0.0~100.0%
0.0% ○