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Only the inductive type of magnetic proximity sensor should be considered from
hereon. Parameter Value Operating voltage 10 – 30 V Maximum switching current 200 mA Minimum response induction 2 – 35 mT Maximum magnetic interference induction 1 mT Response travel (Dependent on field strength and cylinder) 7 – 17 mm Hysteresis 0.1 – 1.5 mm Switching point accuracy ±0.1 mm Voltage drop (at maximum switching current) 3V Maximum current consumption (idling) 6.5 mA Switching frequency 1000 Hz Protective circuit for inductive load integrated Protection to (IEC 529, DIN 40050) IP67 Operating temperature -20 – +70 °C Table 3.2.1: Technical data of an inductive-magnetic proximity sensor Inductive-magnetic proximity sensors have the following basic advantages
compared with reed proximity sensors:
• No problem with contact bounce
• Wear-free, no moving parts
• Only one single switching area is created, if the magnetic pole axis is suitably
aligned, see Fig. 3.2.2. © Festo Didactic GmbH & Co. KG • FP 1110 43 3. Magnetic proximity...
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This note was uploaded on 11/01/2012 for the course CHEMICAL 102 taught by Professor Jamesrodriguez during the Spring '12 term at Universidad Politécnica de Cartagena.
- Spring '12