CATALOG SENSOR TECHNOLOGY 2/3
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EN Subject to alteration! Version: 07.03.2018

IPF ELECTRONIC ipf electronic gmbh Kalver Strafe 25 - 27 58515 Ludenscheid Germany Tel +49 2351 9365-0 Fax +49 2351 9365-19 info@ipf-electronic.com www.ipf-electronic.com I Norm switching distances I Increased switching distances I All-steel sensors I Analog sensors I High-temperature sensors I Ring sensors I Pressure-proof sensors I Welding-proof sensors Inductive sensors I Metal devices I Plastic devices Capacitive sensors I Magnetic proximity switches I Cylinder sensors I Magnetic high-temperature sensors I Accessories I Diffuse reflection sensors I Retro-reflective light barriers I...

INDUCTIVE SENSORS functional principle Inductive proximity switches are contactlessly working sensors. They detect all conductive metal parts, whether they move or not. The oscillating circuit coil behind the active surface of the proximity switch produces an alternating electromagnetic field that is emitted from the active surface of the initiator. Any electrically conductive material (damping object) approaching the field will induce eddy currents, extracting energy from the oscillator. The damping of the oscillator is then converted into a switching signal in the amplifier. functional...

INDUCTIVE SENSORS output circuit For the switching outputs of DC devices, a differentiation is made between PNP and NPN. For PNP outputs the load is connected in such a way that it is energized (positive switching) when the sensor is driven to full output (damping). NPN devices maintain their load permanently energized, switching the earth connection only (negative switching). A corresponding wiring diagram is supplied with every sensor. The alternating current devices are usually 2-wire devices without short-circuit protection. Consequently a load must be connected, which allows for a...

switching frequency The switching frequency states the maximum number of available switching operations per second. Every switching operation of the inductive proximity switch triggers the oscillating circuit. The time needed for the oscillation puts a limit on the switching frequency. For half the nominal switching distance the pulse to pause ratio should be at least 1 : 2, i.e. when choosing the right proximity switch, a compromise needs to be made between the size of the sensor and the switching frequency. General rule: The larger the sensor, the lower the switching frequency. electrical...

INDUCTIVE SENSORS 1000 INTRODUCTION glossary for pictograms mounting flush specifications unaffected by atmospheric changes high temperature increased magnetic field resistance voltage supply direct current alternating current universal power device analog output alarm output relay, change-over contact other information protective isolation ipf electronic gmbh • Kalver Straße 25 - 27 • 58515 Lüdenscheid • Germany │ Tel +49 2351 9365-0 • Fax +49 2351 9365-19 │ info@ipf-electronic.com • www.ipf-e

standard, short, preferential, top U standard design U short design U preferential series U top-series ipf electronic gmbh • Kalver StraGe 25 - 27 • 58515 Ludenscheid • Germany | Tel +49 2351 9365-0 • Fax +49 2351 9365-19 | info@ipf-electronic.com • www.ipf-electronic.com

INDUCTIVE SENSORS 1100 NORM SWITCHING DISTANCES ipf electronic gmbh • Kalver Straße 25 - 27 • 58515 Lüdenscheid • Germany │ Tel +49 2351 9365-0 • Fax +49 2351 9365-19 │ info@ipf-electronic.com • www.ipf-e

non-flush switching distance 2.0 to 15mm P LED display of the switching signal P robust metal housing P different lengths P connection via cable, M8-, M12- or microchange-connector (MC) description An important feature of these sensors is the cast electronics in a stable, metal housing. As a consequence of the compound, the electronics are perfectly protected from vibrations. As such, the devices are also sealed against fluids, except for the connector side. They are much more resistant to mechanical stress than conventional proximity switches made from plastic. The ambient temperature can...

INDUCTIVE SENSORS 1100 NORM SWITCHING DISTANCES Notes on inductive proximity switches I inductive sensor flush, preferential series flush, standard and short design, top-series non-flush, preferential series non-flush, standard and short design, top-series functional principle The oscillation coil behind the active surface of the proximity switch produces an alternating electromagnetic field. Any electrically conductive material entering the field will induce rotational currents extracting energy from the oscillating circuit. The damping of the oscillator is then converted into a switching...

INDUCTIVE SENSORS NORM SWITCHING DISTANCES 1100 output circuit For the switching outputs of direct current devices a differentiation is made between PNP and NPN. For PNP outputs the load is connected in such a way that it is energized (positive switching) when the sensor is driven to full output (damping). NPN devices maintain their load permanently energized, switching the earth connection only (negative switching). A corresponding wiring diagram is supplied with every sensor. For devices with M12-connector and normally closed contact function (nc), the switching output is wired via PIN2....

INDUCTIVE SENSORS 1100 NORM SWITCHING DISTANCES tightening torques To avoid damage when mounting proximity switches, never exceed the tightening torque given. stainless steel thread nickel-plated brass thread plastic thread active switching zone / active surface: The active switching zone is the area in front of the active surface, within which the proximity switch reacts to the approach of metal parts, i.e. changes the state of the output. nominal switching distance (Sn): The distance at which a metal part that is approaching the active surface of the proximity switch causes a change in...

ipf electronic gmbh • Kalver StraGe 25 - 27 • 58515 Ludenscheid • Germany | Tel +49 2351 9365-0 • Fax +49 2351 9365-19 | info@ipf-electronic.com • www.ipf-electronic.com