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Rockwell Automation 45MLA Measuring Light Array Sensors User Manual

Rockwell Automation Equipment

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Installation Instructions

45MLA Measuring Light Array Sensors

IMPORTANT: SAVE THESE INSTRUCTIONS FOR FUTURE USE.

Description

The Allen-Bradley 45MLA measuring light array is a measurement
sensor that utilizes an array of transmitted beam photoelectric
sensor pairs to detect and measure objects. The array housing is
extremely compact, allowing for easy installation in a range of
applications.

The 45MLA are packaged as transmitted beam pairs—the emitter
and receiver arrays are both included. The system requires an
Allen-Bradley 45MLA controller, which must be ordered
separately.

The controller drives the photoelectric elements in the emitter
and reads out the receiver beam information. Use of one of these
external controllers allows the flexibility to:

• Output an analog signal (4…20 mA or 0…10V)

• Configure up to four separate sensing zones with independent

outputs, or

• Communicate individual beam status via serial protocols.

Additionally, the 45MLA can also be customized for application
specific overhang and over-height detection.

Features

• Height measuring capability

• Slim profile array (16 x 20 mm (0.6 x 0.8 in.))

• Beam spacing (pitch) of 10 mm (0.4 in.) or 25 mm (1.2 in.)

• Minimum detectable object is 18 mm (0.7 in.) or 33 mm (1.3 in.)

• Long operating range—4 m (13 ft)

• Fast reaction time and measurement speed

• Sensing array height of 300…1200 mm (11.8…47.2 in.)

• IP54

• Individual beam status available via controller (serial

communication models only)

• Same housing as Allen-Bradley GuardShield™ Micro 400

These devices are intended for object
recognition only and may not be used for
protection of humans (access protection).

ATTENTION

Specifications

Environmental

Certifications

cULus and CE Marked for all applicable directives

Operating Enviroment

IP54

Operating Temperature [C (F)]

0…+55° (+32…+131°)

Storage Temperature [C (F)]

–20…+70° (–4…+158°)

Vibration

10…55 Hz; amplitude 0.35 mm (0.01 in.); meets
or exceeds IEC 60068-2-6

Shock

Acceleration 10 g, pulse duration 16 ms;10…55
Hz; amplitude 0.35 mm (0.01 in.); meets or
exceeds IEC 60068-2-29

Relative Humidity

15…95%

Optical

Sensing Modes

Transmitted beam pair

Sensing Range

0…4 m (0…13 ft)

Field of View

3.2°

Light Source

940 nm

Beam Spacing (pitch)

10 mm (0.4 in.) or 25 mm (1.2 in.)

Minimum Detectable Object Height

18 mm (0.7 in.) or 33 mm (0.3 in.)

LED Indicators

Red: Status
Green: Alignment

Mechanical

Housing Material

Aluminum

Lens Material

Polycarbonate

Cover Material

Polycarbonate

Connection Types

8-pin DC micro (M12) female QD on 500 mm (20
in.) cable pigtail (for connection to 45MLA
controller only)

Accessories

Supplied Accessories

Adjustable mounting kit (445L-AF6143)

Required Accessories (Controller)

Controller Analog Model:
45MLA-CTRL-ALG
Controller Basic Model: 45MLA-CTRL-BSC
Controller I/O Model: 45MLA-CTRL
Controller RS485: 45MLA-CTRL-485
Controller CAN: 45MLA-CTRL-CAN

Required Accessories
(Light array to controller connecting
cable)

3 m M12—RJ45: 445L-AC8RJ3
5 m M12—RJ45: 445L-AC8RJ5
8 m M12—RJ45: 445L-AC8RJ8
Max. system length cannot exceed 10 m (32.8 ft)

Optional Accessories

Adjustable flat mounting bracket:
445L-AF6149
Flat mounting kit: 445L-AF6145
Cascadable array extension patchcord,
M12 8-pin, 3M: 445L-AC8PC3