De energized condition of 24v Dc Solenoid Coil monitoring Concept and Block Schematic

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Status of solenoid coil monitored continuously during De-energized condition. Very low Constant current injected for detecting open or short condition of Dc solenoid. Window comaparator for checking healthy status of solenoid. Energized condition is overriding condition and ignore action taken by detection circuit during this period. Healthy signal relay gives free potential contact for logical configuration of status.