Connect a 2-wire proximity sensor to an auxiliary input.
Connect a 2-wire proximity sensor to an auxiliary input signal in a sourcing or sinking configuration (on a positive or negative power wire). In both cases, install an external bleeder resistor to ensure a minimum amount of current flows into the proximity sensors and off-state.
For the auxiliary input signal to source the current (to connect an auxiliary input signal on a positive power wire), connect the 2-wire device to the auxiliary input signal, as shown below. You must also install an external bleeder resistor between the AUX_IN_COMMON pin and the brown wire of the proximity sensor.
2-Wire Proximity Sensor
The bleeder resistors should guarantee that the minimal required current is provided to the connected sensor (the third-party device). For details regarding the sensor's current requirements, refer to its documentation.
Use a bleeder resistor with an appropriate power rating for your circuit.
For the auxiliary input signal to sink the current, connect the 2-wire device to the auxiliary input signal. Install the external bleeder resistor between the blue wire of the proximity sensor and the AUX_IN_COMMON pin.
