USR Universal Speed Relay
Universal speed relay for all speed monitoring applications; offering intuitive user configuration using control buttons and LCD display, as well as relay and solid state outputs with individual speed range monitoring.
4B’s USR Speed Relay is a microprocessor controlled digital speed monitor for use with 2, 3, 4 wire NPN/PNP sensors, 4B’s WDA range of sensors or contact sensor inputs, with a user programmable electro-mechanical relay and PhotoMOS Solid State Relay (SSR) outputs. The Speed Relay has a 160x80 pixel LCD display to provide information, and 3 front panel buttons to program settings.
The USR Speed Relay reads input pulses and displays the calculated pulse frequency in a range of selectable units. The user can set the Electromechanical Relay and PhotoMOS Solid State Relay outputs independently, with their own thresholds and output behaviors, and have the Alarm LED indicate the state of one of the outputs. The Electromechanical Relay can be set to trigger when the input speed is outside the chosen range. The PhotoMOS Solid State Relay can provide a trigger output or can be configured to provide a pulsed output that matches the input pulse frequency. One LED (Input LED) shows input status of the sensor’s pulses, and another LED (Alarm LED) shows the state of the assigned output.
