Fail-safe potentiometer feedback system

Details Fail-safe potentiometer feedback system Fail-safe potentiometer feedback system

G - Physics

05

B

341/97

G05B 19/35 (2006.01) G05B 19/4062 (2006.01)

Patent

CA 1329645

ABSTRACT OF THE DISCLOSURE A fail-safe electronic position monitoring system for a motor is specifically described in a flame safeguard system. The same fail-safe system could be used more generally in any type of positional monitoring system using a potentiometer. The potentiometer and its wiper are monitored by a microcomputer which has stored in its memory a profile of at least three critical parameters. The parameters are a low voltage parameter, a high voltage parameter, and a parameter that deals with the rate of the voltage level change. The rate voltage level change includes a monotonocity function.

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