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Why the Proximitor supply should be Negative voltage? Why
should not we give Positive voltage to the Transducer?
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Answer Posted / anand raj
Proximity sensors are of different types, and the circuitry
can use NPN or PNP switching. I personelly have worked with
NAMUR inductive type proximity sensors where we supply
positive 7.2 to 8 volt to the sensor. When a metallic target
is in its visinity the voltage drops to 4 volts switching
the relay. So dont know if this question is completely correct.
| Is This Answer Correct ? | 3 Yes | 3 No |
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