ABB 3HAC6157-1

ABB 3HAC6157-1

Important 

All control parameters are determined in an optimum way for most actuators during Autoadjust. Changes should only be made when Autoadjust cannot be executed or control stability cannot be achieved. 

The positioner issues an amplified positioning signal for the defined pulse length and with the actuator not moving, in order to achieve accelerated starting of the actuator. This improves the dynamic, in particular, for small setpoint changes. 

To compensate for existing dissymmetries in the controlled system, the go pulse should be set separately for both directions (up/down). 

If the actuator consistently overshoots the setpoint, decrease the go pulse. For small and fast actuators, it may be necessary to set the go pulse to 0, even if Autoadjust has determined a higher value. 

Important 

The value determined by Autoadjust should not be increased, as this may result in overshooting! 

You can use parameter GOPULSE UP to move the go pulse for adjustment towards 100 %. 

Input value: In 20 ms increments

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Product Information