Motion detector UDS1000

magneticnon-contactdigital

Features Relay changes state when shaft direction reverses Relay resets when reverse motion stops Easy installation and calibration Cast aluminum switch housing NEMA 4X, 7, 9 rated 115 VAC standard, 12 VDC, 24 VDC, 230 VAC options Class I, Div I (C, D) Class II, Div I (E, F, G) During operation, the UDS1000 energizes its 5 Amp, DPDT relay when the monitored shaft is at rest or turning in the desired direction of rotation. The relay contacts can be used to enable the motor starter circuit, or provide a visual indication that the start up or process commencement is possible. When the monitored shaft turns in reverse (wrong direction) the relay de-energizes, thus preventing the motor or process from starting. The UDS1000 works with a shaft-end mounted Pulser Disc (or optional split-collar Pulser Wrap) which generates an alternating magnetic field that is picked up by the large gap non-contact sensor. The sensor transmits this speed signal as a quadrature digital pulse (frequency) to the switch via a 4-conductor shielded cable. The UDS1000 decodes this frequency signal to determine shaft direction. The relay output can then be used for equipment shutdown, to prevent start-up, or to provide an alarm, assuring machine protection and process integrity. The UDS1000 is fail-safe; any loss of power during operation will de-energize the relay.