PWM input to voltage output transducer
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The PWM-1 is a signal converter which takes a pulsed binary input signal and outputs a voltage signal proportional to the duration of the pulse. The device allows controllers with only relay outputs to connect to field devices such as modulating dampers, valves and variable speed drives. The output signal can be modulated with precision of one-tenth of a volt. The device has an RS485 port for integrating over Modbus RTU and Bacnet MSTP, all settings and the current state of the inputs and outputs are visible as Modbus registers or Bacnet objects. Each output has a manual hand-off-auto switch which allows the installer and building operator to override the software settings for field testing and overrides. The voltage which is output in manual mode can be adjusted when in manual mode so you can effectively command the output to any state from fully open to fully closed using the hand-off-auto switch and potentiometer.