7 Sensor ConnectionsThe Sensor Connections guide lists most common Banner and non-Banner sensors and how to wire them to the DX80 devices.This reference guide lists typical connections. If you have additional questions about a specific sensor or its connection in-structions, please contact Banner Engineering or the manufacturer of the sensor you are using.Discrete Sensors. Neither the inputs nor the outputs on the DX80 devices are isolated. Under certain operating condi-tions, externally powered sensors may need to have ground in common with the DX80 device to which they are connected.The power sources do not have to be the same.Analog Sensors. For analog sensors, the ground/dc common of the sensor should be connected to the ground of theDX80 device. For best results, Banner recommends that the power source for the sensor and DX80 device is the same.7.1 Discrete InputsDiscrete Sensors. Neither the inputs nor the outputs on the DX80 devices are isolated. Under certain operating condi-tions, externally powered sensors may need to have ground in common with the DX80 device to which they are connected.The power sources do not have to be the same.7.1.1 Discrete Inputs, SourcingTwo-Wire Sensors Three-Wire SensorsDiscrete INPWR10-30V dcDiscrete INGNDdc commonPWR10–30V dcWiring diagram for a sourcing (PNP), two-wire sensor pow-ered using the SureCross device terminal block.The sensor's power source might need to be the same asthe SureCross device power source.Wiring diagram for a sourcing (PNP), three-wire sensorpowered using the SureCross device terminal block. Undercertain conditions, the dc commons between the sensor andthe SureCross device might need to be connected.The sensor's power source might need to be the same asthe SureCross device power source.7.1.2 Discrete Inputs, SinkingTwo-Wire Sensors Three-Wire SensorsDiscrete INGNDdc commonDiscrete INGNDPWR10-30V dcdc commonWiring diagram for a sinking (NPN) two-wire sensor pow-ered using the SureCross device terminal block. Under cer-tain conditions, the dc commons between the sensor andthe SureCross device might need to be connected.Wiring diagram for a sinking (NPN) three-wire sensor pow-ered using the SureCross device terminal block. Under cer-tain conditions, the dc commons between the sensor andthe SureCross device might need to be connected.Rev. J www.bannerengineering.com - tel: 763-544-3164 65
