CONTACTOR CONTROL SYSTEM

1. The ratio of the magnitude of the primary feedback signal in a feedback control system to the magnitude of the actuating signal. 2. Total usable power gain of a carrier terminal or two-wire repeater; maximum usable gain is determined by, and may not exceed, the losses in the closed path.

A feedback control system in which a computer operates on both the input signal and the feedback signal to effect control.

Feedback control system in which the relationships between the pertinent measures of the system input and output signals cannot be adequately described by linear means.

A control system in which signals at one or more points may change only at discrete values of time. Also known as discrete-time system.

Improvement of the response of a feedback control system by placing a compensator in the feedback path, in contrast to cascade compensation. Also known as parallel compensation.

[CONTSYS] Aphotoelectric control system used as a position regulator for a loop of material passing from one stripprocessing line to another that may travel at a different speed. Also known as loop control.

A portion of a feedback control system that consists of a continuous network containing both forward elements and feedback elements.

A signal obtained by comparing the output of a control system with the input, which is used to diminish the difference between them.

1. The time interval between a change in the input signal to a process control system and the response to the signal.
2. The time interval, after a response to one signal or event, during which a system is unable to respond to another. Also known as insensitive time.

A controller which produces a control signal proportional to the integral of the error signal.