Closed-loop Summing Points

Closed-loop Summing Points

Closed-loop Summing Points

08/19/17

“What are the points on a control diagram for comparing the output and the setpoint?”

 

What makes a closed-loop control system truly closed loop is the comparison of the output and setpoint for making the error value. However, how is this represented on a control diagram? Well, Control Engineers like to use something called a Closed-loop Summing Point. Closed-loop Summing Points are small circular elements on a diagram that takes in an input on one quadrant, the setpoint on another and then produce the error term. Depending on the signs of the quadrant, the input value might be positive (for a + sign) or negative (for a – sign)

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