Wiring Diagrams

Emitters with Attached Cable

All Other Models with Attached Cable

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10-30V dc

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Load

Load

10-30V dc

Emitters with Quick Disconnect (4-pin Euro-Style)

All Other Models with Quick Disconnect (4-pin Euro-Style)

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bk

10-30V dc

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Load

Load

10-30V dc

The output type for all models is Bipolar NPN/PNP; load 150 mA max., each output.

Sensor Mounting and Alignment

MINI-BEAM sensors perform most reliably if they are properly aligned and securely mounted.

For maximum mechanical stability, mount MINI-BEAM sensors through 18 mm diameter holes by their threaded barrel (where available), or use a mounting bracket. A

complete selection of mounting brackets is available. Visit www.bannerengineering.com or contact the factory for information on mounting options.

Begin with line-of-sight positioning of the MINI-BEAM sensor to its emitter (opposed-mode sensing) or to its target (all other sensing modes). When using a retroreflective

sensor, the target is the retroreflector (“retro target”). For diffuse or convergent sensing modes, the target is the object to be detected.

Apply power to the sensor (and to the emitter, if using the opposed mode). Advance the 15-turn Gain control to maximum (clockwise end of rotation) using a small flat-blade

screwdriver. The Gain control is clutched at both ends to avoid damage and will “free-wheel” when either endpoint is reached.

If the MINI-BEAM sensor is receiving its light signal, the red LED Alignment indicator will be ON and flashing at a rate proportional to the signal strength (faster = more

signal). Move the sensor (or retro target, if applicable) up-down-right-left (including angular rotation) to find the center of the movement zone within which the LED indicator

remains ON. Reducing the Gain setting reduces the size of the movement zone for more precise alignment.

Repeat the alignment motions after each Gain reduction. When optimum alignment is achieved, mount sensor(s) (and the retro target, if applicable) solidly in that position.

Increase the Gain to maximum.

Test the sensor by placing the object to be detected in the sensing position, then removing it. The Alignment indicator LED should come ON when the sensing beam is

established (Light condition) or be ON when the beam is broken (Dark condition). If the Alignment indicator LED stays ON for both sensing conditions, consider the follow-

ing tips for each sensing mode.

Opposed Mode Alignment

Object

Emitter

Receiver

“Flooding” occurs when a portion of the sensing beam passes around the object to

be sensed. “Burn-through” occurs when a portion of the emitter’s light energy pass-

es through a thin or translucent object, and is sensed by the receiver.

To correct either problem, do one or more of the following to reduce the light ener-

gy:

• Reduce the Gain adjustment on the receiver.

• Add an aperture to one or both lenses. (MINI-BEAM apertures, available from

Banner, fit neatly inside the lens assembly.)

• Intentionally misalign the emitter and receiver.

Note:

• Light condition: sensor output is ON when there is no object in beam

• Dark condition: sensor output is ON when there is an object in beam

MINI-BEAM dc-Voltage Series

P/N 69943 rev. C

www.bannerengineering.com - tel: 763-544-3164

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