LS Industrial Systems SV-iE5 Series, Руководство пользователя, Страница: 75 / 127

Chapter 10. Advanced Functions
10-8
10.7
PI Control
Group Code Parameter Name Setting Range Initial Unit
P46 Control mode select 2
0 ~ 3
0
-
P47 P gain for PI controller - 0 ~ 999.9 300.0 %
P48 Differential time for PI controller(I gain) - 0.1~ 32.0 1.0 sec
P50 Feed forward gain for PI controller 0 ~ 999.9 0 %
P51 PI output frequency upper limit - 0 ~ 200 60.0 Hz
P52 PI output frequency lower limit 0 ~ 200 0.5 Hz
PG Group
P66~
P70
Multi-function input terminal P1 ~ P5 define 20 0 ~ 24 - -
ƒ Set P46 to 2(PI control).
ƒ Output frequency of the inverter is controlled by PI control for use as constant control of flow, pressure or
temperature.
P47: Set the percentage of output to error. If P Gain is set to 50%, 50% of the error value will be output.
Higher value can reach the target control value faster but it may cause oscillation.
P48: Set the time to output the accumulated error value. Set the time required to output 100% when the
error value is 100%. If differential time is set to 1 second and error is 100%, it outputs 100% in 1 second. If
the value is reduced, response will be faster but setting too low may lead to controller oscillation.
P50: Set the gain to add the target value to the PI controller output.
P51, P52: It limits the output of the PI controller.
P66 ~ P70: To exchange PI to normal operation, set one of P1~P5 terminal to 20 and turn ON.