I'm trying to use an ldc1450 to control a hydraulic pump connected to a rotary actuator. Closed loop position mode. feedback is supplied via a potentiometer connected to a rotary hydraulic actuator(Helac L10) I am having some trouble getting the controller to stop overshooting. it is small but continuously vhunting. What do you think will be my best course of action to correct the issue? Thanks in advance for any suggestions.
You should probably start by decreasing the KP term if possible. The overshoot may also be due to built-up integral error. To fix that you could try reducing the KI term or reducing the ICAP (integral cap) term on the controller.