228 • Vacon apfiff09 marineTel. +35867.17 PI ControlPI Control in system interface application uses ID number to make connection between reference,actual value and output. PIC function will be active when PIC Controller Output ID is higher thanzero.PID ControllerOUTGainIntegration TimeSetpointFeedbackP PID-Control GainP PID-Contol I TimeV PID OutputINMULDIVOUTScale V PID Out ScaledP PID Out ScaleC 100,0 %ID OUTID SEL ININIDID SEL OUTP PID Reference IDP PID Actual ID ID OUTID SEL INP PID Reference (ID167)V PID ReferenceV PID ActualPI Out LowPI Out HighPI ScaleP PID Out IDP PID ScaleP PID Min LimitP PID Max LimitDataSETP PID Stop ValueDI PID ActivationP2.17.1 PI Controller Gain ID118 -This parameter defines the gain of the PID controller. If the value of the parameter is setto 100% a change of 10% in the error value causes the controller output to change by10%. If the parameter value is set to 0 the PID controller operates as I-controller.P2.17.2 PI Controller I time ID119 -ContrThe parameter ID119 defines the integration time of the PID controller. If this parameteris set to 1,00 second a change of 10% in the error value causes the controller output tochange by 10.00%/s. If the parameter value is set to 0.00 s the PID controller will operateas P controller.P2.17.3 PI Controller referenceID167PI controller reference from keypad, used also when reference is controlled fromFieldbus.P2.17.4 PI Controller reference value ID number ID332Select ID number of the signal that is used as reference valued for PI controller. Defaultvalue is the ID of P2.17.3P2.17.5 PI Controller actual value ID number ID333Select ID number of the signal that is used as actual value for PI controller.PI Actual value can be written from Fieldbus directly to monitoring variable ID21 whenthis parameters is set to zero.P2.17.6 PI Controller output IDID1802Select ID number of parameter of signal that is controlled by PI controller. When thisvalue is creater than zero PI function is operational. This is scaled value by PI ControllerOutput Scale. Scaling function is used to scale value more suitable for connected signal.e.g. when output is connected to torque limit actual value need to be -1000 ...+1000(-100,0 %..+100,0 %). But PI Out High and Low can be from -30000...+30000 to havemore accurate PI control.
