R55F Series Fiber-Optic Color Mark Sensors

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Using the R55F Series Sensor

RUN Mode

Normal operation of the R55F is called RUN mode. The LED indicators (see

Figure 2) operate as follows in RUN mode:

Output Conducting LED: ON when outputs are active

Delay Configuration Indicator LED: OFF No OFF Delay is programmed

ON 20 or 40-ms OFF Delay is programmed

Light Operate LED: ON to indicate Light Operate configuration

Dark Operate LED: ON to indicate Dark Operate configuration

(NOTE: Since either one of these is always ON when the sensor is operating, the

combined Light/Dark Operate LEDs also provide a functional Power-ON indication.)

10-Segment Light Bar: indicates signal strength, with respect to the sensing

threshold (“Switch Point”).

TEACH Modes

The sensitivity of the R55F may be quickly optimized by using one of two available TEACH modes: Static TEACH or Dynamic

TEACH. Either may be performed using the push buttons on the sensor, or remotely, using a remote switch or process controller

connected to the sensor’s gray wire (see page 8). Either a sensing window or a specific point may be taught.

Static TEACH

In Static TEACH mode, the sensor learns the light condition and the dark condition, each one time. Sensitivity is automatically set

to place the switch point midway between the two conditions. In addition, the condition taught first becomes the output ON

condition.

Sensitivity may be adjusted at any time when the sensor is in RUN mode by clicking the “+” and “-” buttons. Each click translates

to 1/2 segment on the signal strength light bar. For best sensing reliability, the light and dark conditions should register equally

distant from the switch point on the signal strength light bar.

Single-Point TEACH

The R55F sensor also may be taught a single specific target, using an alternate Static TEACH procedure. The sensor will sense

only the mark taught and will ignore signals both stronger and weaker. The sensitivity to the taught mark then may be adjusted up

or down.

To perform single-point TEACH, place the target in front of the sensor. Press and hold the “Static” button until the LO and DO

LEDs begin to flash, then double-click the Static button. If the single point was successfully taught, the two center sections of the

bar graph will flash.

Manually adjust the sensitivity by clicking either the “+” or “-” button; the bar graph will flash two segments centered about the

sensing point. If the sensitivity is increased (-), the two lighted segments will become closer together, and farther apart if the

sensitivity is decreased (+). If the segments do not flash while the sensitivity is being adjusted, the setting has reached its

maximum and cannot be adjusted further.

Figure 2. R55F Series sensor features

* Either LO or DO LED is ON

whenever sensor has power

and is in RUN mode

Switch

Point

10-Segment

Light Bar

Static

TEACH (-)

Push Button

Dynamic

TEACH (+)

Push Button

DO

(Dark Operate)

LED*

LO

(Light Operate)

LED*

Delay

Configuration

Indicator LED

Output

Conducting

LED