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