Product Description:

The X20AO4632 is an analog output slice produced by B & R Automation for the X20 Fieldbus Input Output Modules series. Integrated into a distributed control backplane, the unit converts digital setpoints from a PLC into process-level currents or voltages that drive actuators, valves, or transducers on the plant floor. By occupying one slot in an enclosed cabinet it allows high-density signal generation next to input slices, minimizing wiring length and simplifying analog loop management inside automated machinery.

Each channel of the X20AO4632 delivers 4 independent outputs that are quantified by a 16-bit digital-to-analog converter, so the control program can assign 65,536 discrete levels to every signal. For current-loop devices the module sources 0 to 20 mA, while for voltage-mode equipment it swings between ±10 V; these ranges cover most industrial actuators without external scaling hardware. When mounted horizontally in the rack it tolerates ambient temperatures from -25 to 60 °C, allowing continuous duty next to heat-dissipating power electronics. Shielded wiring is required at the terminal block to reduce radiated noise and maintain full converter accuracy in electrically noisy cabinets.

In a vertical orientation the allowable temperature window narrows to -25 to 50 °C, a limit that prevents convection-restricted stacking from overheating the analog stages. Operation is specified from sea level up to 0 to 2000 m, so altitude-related derating is unnecessary for most factories. The electronics are housed in a slice that projects 75 mm from the DIN rail and rises 99 mm above the bus carrier, dimensions that let several modules share the same cabinet depth. Installation inside an enclosed control cabinet simplifies grounding and ensures that conductive debris cannot reach the circuitry.