R55F Series Fiber-Optic Color Mark Sensors
For Plastic and Glass Fiber Optics
R55F Series Sensor Features
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Outstanding color contrast sensitivity; detects 16 levels of gray scale.
Depending on beam color, reliably detects the toughest color mark contrasts,
including 20% yellow against white.
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Fast, 50-microsecond response.
Choose from infrared or one of four visible beam colors: red, blue, green and
white.
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Fibers mount in small and otherwise inaccessible areas.
Easy push-button programming options include Static TEACH, Static Single-Point
TEACH, Dynamic TEACH and Remote TEACH; plus manual sensitivity adjustment.
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Non-volatile memory.
Glass fiber models function well in harsh environments typically associated with
printing processes.
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Plastic fiber models function well in applications that require repeated flexing of
the fibers.
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Fibers install quickly without tools.
Bipolar (NPN/PNP) outputs with three Delay settings (0, 20 or 40 milliseconds).
Choice of integral cable or QD connector models.
Mounts flat or to 35 mm DIN rail; two brackets included with sensor (one for
angle mount, one for flat mount).
R55F Series Sensor Overview
The R55F Fiber-Optic Sensor was developed to provide simplicity of operation and
access to tight areas for color mark (registration) sensing applications. The R55F is a
technological advancement from earlier R55 models.
R55F sensors feature TEACH mode sensitivity adjustment, by presenting the light and
the dark sensing conditions to the sensor. In addition, sensitivity may be fine-tuned at
any time by simply clicking the “+” or “-” buttons on the sensor. The ten-element signal
strength light bar clearly displays the relative received signal strength.
The bipolar (one NPN and one PNP) outputs may be programmed to include a 20 or
40-millisecond pulse stretcher (OFF Delay), if required. Both TEACH mode sensitivity
adjustment and output SETUP are accomplished using the push-buttons on the sensor,
or by supplying input pulses via the Remote Teach input.
TEACH mode has two options: Static TEACH and Dynamic TEACH. Static TEACH is
used to manually set the two sensing conditions individually or to program a specific
condition to be sensed (single-point TEACH). Dynamic TEACH provides a means for
teaching a series of conditions on-the-fly; the R55F “averages” the sensing events and
automatically sets (and periodically updates via the adaptive threshold feature) the
switch point between light and dark conditions.
Printed in USA
05/01
P/N 57945 rev. B