DC 2-Wire Inductive Sensors

DC 2-wire inductive sensors are proximity sensors that have no separate supply wire, work connected in series with the load and detect metal objects without contact. They are connected to a PLC input where existing two-core wiring is to be kept and at points where they replace a mechanical limit switch. This category includes Lanbao and Isıso branded M8, M12, M18 and M30 models with flush or non-flush heads; sensing distances are values such as 1.5 mm, 2 mm, 4 mm, 5 mm, 10 mm and 15 mm. Choose the housing diameter, head design, sensing distance, NO or NC output and switching frequency according to the mounting location and the input to be connected. A two-wire sensor has a voltage drop across it when on and a small leakage current passes through the circuit when off; verify from the manufacturer's data that the PLC input works correctly with these values. A DC 2-wire sensor is not a three-wire sensor with an NPN or PNP output; it has no separate output wire and is powered through the load circuit.

Products

How to choose DC 2-Wire Inductive Sensors

DC 2-wire inductive sensors are proximity sensors that have no separate supply wire, work connected in series with the load and detect metal objects without contact. They are connected to a PLC input where existing two-core wiring is to be kept and at points where they replace a mechanical limit switch.

  • Separate sensing, motion control, logic processing and operator interface requirements.
  • Select signal type, supply voltage, communication protocol and I/O count for the machine network.
  • Verify housing size, sensing distance and PNP/NPN output polarity against the PLC input card.

Frequently asked questions

What is DC 2-Wire Inductive Sensors and where is it used?

DC 2-wire inductive sensors are proximity sensors that have no separate supply wire, work connected in series with the load and detect metal objects without contact. They are connected to a PLC input where existing two-core wiring is to be kept and at points where they replace a mechanical limit switch.

What should I compare when choosing DC 2-Wire Inductive Sensors?

Choose the housing diameter, head design, sensing distance, NO or NC output and switching frequency according to the mounting location and the input to be connected.

Where can I find technical details for DC 2-Wire Inductive Sensors products?

They are connected to a PLC input where existing two-core wiring is to be kept and at points where they replace a mechanical limit switch.

DC 2-Wire Inductive Sensors Selection Guide: Technical Criteria & Application Standards