Overview

R58 Expert offer maintenance-free, solid-state reliability for typical color

contrasts found in product and material registration applications. Fast 50-

microsecond sensing response produces excellent registration repeatability, even

in ultra-high-speed applications. This fast response, coupled with the small 1.2 x

3.8 mm (0.05 in x 0.15 in) sensing image, allows the detection of small and

inconspicuous registration marks.

R58E sensors feature TEACH mode sensitivity adjustment by presenting two

sensing conditions to the sensor. TEACH mode has two options: Static TEACH and

Dynamic TEACH. Static TEACH is used to position the two sensing conditions

individually. Dynamic TEACH provides a means for teaching a series of conditions

on-the-fly; the R58E samples the sensing events and automatically sets the

switchpoint between the lightest and darkest conditions. The sensor then

determines which sensing condition is present for the shortest time and assigns

the Output ON condition to that event (therefore, LO/DO selection is automatic).

If necessary, the LO/DO setting can be reversed in Setup mode.

The sensor uses a tri-color LED during either teach process and automatically

selects a red, green, or blue sensing beam, based on the contrast between the

registration mark and its background. For applications where the user wishes to

select the sensing beam color, individual colors may be enabled/disabled in Setup

mode.

Sensitivity may be fine-tuned at any time by clicking the “+” or “-” buttons on the

sensor. The eight-element barograph display clearly displays the relative received

signal strength. The discrete bipolar (one NPN and one PNP) outputs may be

configured in Setup mode to include a 30-millisecond ON-delay and/or OFF-delay,

if required.

Configuration is accomplished either by using the push-buttons on the sensor, or

by supplying input pulses using the remote input. The buttons may be disabled

using the remote input.

The construction of the R58E is extremely robust, with a die-cast metal housing,

plastic optics, IP67 and NEMA 6 leakproof design for harsh sensing environments.

Power LED

Output LED

Dynamic (+)

Push Button

Dark Operate

(DO) LED

Light Operate

(LO) LED

Static (-)

Push Button

ON-Delay LED

OFF-Delay LED

Switchpoint

8-Segment

Bargraph

Display

Figure 1. Sensor Features

Status Indicators

LED

Indicates

Power

On Green: Run mode

Off: TEACH or Setup mode

Output

On Amber: Output is conducting, or TEACH Output ON condition

Off: Output is not conducting, or TEACH Output OFF condition

Light Operate

On Green: Light Operate (LO) operation

Dark Operate

On Green: Dark Operate (DO) operation

OFF-Delay

On Green: 30 ms pulse stretcher (OFF-delay) is active

Off: No OFF-delay

ON-Delay

On Green: 30 ms ON-delay is active

Off: No ON-delay

8-Segment Bargraph

Display

On Red:

Run mode — Indicates signal strength with respect to the sensing threshold (switchpoint); higher

segment number for higher sensing contrast

TEACH mode — Indicates relative contrast

Setup mode — Displays sensing beam LED color (see Figure 8 on page 7)

Off: TEACH or Setup mode — Sensor configuration active

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