Powtran PI9000 series, Быстрое руководство, Страница: 36 / 52

Service center of POWTRAN technology company
My future ,drive and control
.
PS:
In factory setting, AI2 is voltage input,if you want to change it to current input (0~20mA),
you need change the position of J4 jumper.
If your current signal is 4~20mA, you need to set one more parameter: For AI2 ternimal: set
parameter F1.16=2.
Suggestion :
1.Check the direction of running . Press “FWD” for 1 sec ,if the direction of motor running is
wrong, ,please cut off the input power supply ,and change the order of input power phase .
2. E2.01 ( PID value set by keyboard ),the value should be sett according the law ,
Target of pressure want to keep up (P)/ maximum pressure range of meter *100%.
3 .proportional gain (Kp) and integration time (Ti) setting method :
A, program a little value for proportional gain (Kp), and pre-set integration time (Ti) to 20
～
30s
about .
B, Increase the Kp value gradually until oscillation happen in system ,and then make the value
pre-
set of Kp to it’s half .
C, Decrease Ti value gradually until oscillation happen in system ,and then set 150% or pre-set
instead .
In common ,everything will ok according above mentioned setting . if a little oscillation
happen ,please set Kp a little small ,or set Ti a little big ,if the system need to air restore soon
after air leaking ,please set Kp a little big ,or set the Ti a little small .