1 Preliminary note 1.1 Symbols used ► Instructions > Reaction, result → Cross-reference Important note Non-compliance can result in malfunction or interference� Information Supplementary note 2 Functions and features In conjunction with a prismatic reflector or reflective tape, the retro-reflective sen- sor detects transparent objects and materials without contact and indicates their presence by a switching signal�...
The units of the OJ51xx series have two fixing holes on the side for mounting. A mounting fixture is not supplied� Maximum range only with accurate alignment� 3.1 Installation of the supplied mounting fixture Secure the mounting fixture with the screws supplied, then slide the unit into the slot of the fixture until the spring clicks home�...
DC PNP teach Programming of the output function by pushbutton or programming wire (→ 6.5 Programming the output function). 5 Set-up The retro-reflective sensor is supplied ready to operate (plug & play) and set at the max. sensing range. This is sufficient if the retro-reflective sensor can operate with maximum excess gain.
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Set the sensitivity without object� ► Press once� > The yellow and green LEDs go out for approx. 1 s., after approx. 3 s the green LED is on� > The unit is in the operating mode. Setting steps 2 and 3 can also be carried out in reverse order� * The sensitivity can also be set in exactly the same way using the programming wire (pin 2 / WH).
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► Allow objects to pass through the detection area during the measurement (about 1 s) (number of the objects between min. 8 Hz and max. switching frequency). ► Press once� > The yellow and green LEDs go out for approx. 1 s, then flash again alternately. ►...
6.3 Setting of maximum sensitivity* ► Go into the programming mode of the unit. (→ step 1). ► Align the sensor so that no light is reflected� ► Press the setting button twice (→ steps 2 and 3). * The maximum sensitivity can also be set in exactly the same way using the programming wire (pin 2 / WH).
► Keep the lens of the sensor free from soiling� ► For cleaning do not use any solvents or cleaning agents which could damage the plastic lenses� Technical data and further information at www.ifm.com → Select your country → Data sheet direct:...
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