10.07.2015 Views

Sigma-II Series SGM*H/SGDH USER'S MANUAL - Esco Drives ...

Sigma-II Series SGM*H/SGDH USER'S MANUAL - Esco Drives ...

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9 Adjustments9.4.4 Proportional Control Operation (Proportional Operation Reference)9.4.4 Proportional Control Operation (Proportional Operation Reference)If parameter Pn000.1 is set to 0 or 1 as shown below, the /P-CON input signal serves as switch to change betweenPI control and P control.• PI control: Proportional/Integral control• P control: Proportional controlParameterControl ModePn000 n.0 SpeedControln.1PositionControlEffective in speed control or positioncontrol.Input signal /P-CON (CN1-41) is usedto select PI control or P control.CN1-41 is OFF(H level).PI controlP/PISwitching/P-CONSERVOPACKCN141CN1-41 is ON(L level).P control• When sending references from the host controller to the SERVOPACK, P control mode can be selected from the hostcontroller for particular operating conditions. This mode switching method can be used to suppress overshooting andshorten the settling time. Refer to 9.4.5 Using the Mode Switch (P/PI Switching) for more details on inputting the /P-CON signal and switching the control mode for particular operating conditions.• If PI control mode is being used and the speed reference has a reference offset, the servomotor may rotate very slowlyand fail to stop even if 0 is specified as the speed reference. In this case, use P control mode to stop the servomotor.9-18

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