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Rockwell Automation 45LMS Laser Measurement Sensor User Manual

Features, General specifications

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Installation Instructions

45LMS Laser Measurement Sensor

IMPORTANT: SAVE THESE INSTRUCTIONS FOR FUTURE USE.

Description

The 45LMS family of long distance laser sensors is available in a
variety of measuring ranges. The 8 m diffuse and 50 m
retroreflective models use a Class 1 visible red laser and the
15 m diffuse models use a Class 2 visible red laser. The discrete
and analog outputs can be easily set using the 5-step rotary
switch and the push button. Potential applications include object
position (analog output) and object detection (background
suppression with discrete output).

This sensor utilizes the Time of Flight (ToF) principle and has a
relatively small beam spot even at 15 m away. The sensor is
completely self-contained and does not require any external
control devices which add cost and require additional mounting
space.

The 45LMS is easily set up by mounting the sensor such that the
target is within the operating range of the sensor and teaching in
the appropriate set-points required for the application. All
sensors in this family have one discrete output with one analog
output. The discrete output can be wired for either Light Operate
(L.O.) or Dark Operate (D.O.) and the analog output is
automatically scaled between the selected set-points with either
a positive or negative slope.

The 45LMS is an excellent solution for long range detection and
measurement applications including: distance measurement,
verifying material position, stack level, thickness measurement,
roll diameter, positioning fixtures, error proofing inspection, long
standoff distance, level monitoring, crane crash protection and
other difficult applications that exceed the capabilities of
standard diffuse or background suppression photosensors.

Features

• Eye Safe Class 1 or Class 2 laser (by model)
• 8 m (26 ft.), 15 m (49 ft.) or 50 m (164 ft.) sensing

range, dependent on model

• One discrete output (1 x NPN/PNP) and one analog

output (1 x 4…20 mA)

• Easy setup of switch points or analog scaling using

programming buttons

• IP65 enclosure
• Self-contained sensor

This installation instruction should be read and
understood before operating the sensor.
The 45LMS sensor should only be installed by
qualified personnel.
The 45LMS is not a safety component as described
by the EU machinery directives.

ATTENTION

General Specifications

Certifications

UL, cULus, and CE marked for all applicable
directives

Operation

Sensing Beam

Class 1 laser, visible red 660 nm (for 8 m & 50 m
models)
Class 2 laser, visible red 660 nm (for 15 m model)

Spot Size

< 10 mm (0.39 in.) at a distance of 8 m (26 ft)
at 20

°

C (68°F)

< 15 mm (0.59 in.) at a distance of 15 m (49 ft)
at 20

°

C (68°F)

< 50 mm (2 in.) at a distance of 50 m (164 ft)
at 20

°

C (68°F)

Sensing Distance

0.2…8 m (0.66…26.25 ft) diffuse
0.2…15 m (0.66…49.21 ft) diffuse
0.2…50 m (0.66…164.04 ft) retroreflective

Absolute Accuracy

± 25 mm (± 0.98 in.)

Repeatability

< 5 mm (0.20 in.)

Angle Deviation

± 2° max.

Reference Target

Kodak white (90%)

Temperature Influence

≤ 0.25 mm/K typ.

Electrical

Operating Voltage

10…30V DC
(18…30V DC when operating in IO-Link mode)

Current Consumption

≤70 mA @ 24V DC

Discrete Output Type

1 NPN/PNP output, short-circuit protected, reverse
polarity protected

Discrete Output Rating 30V DC max. / 100 mA max.

Analog Output Type

1 analog output 4…20 mA, short-circuit/overload
protected

Switching Frequency

50 Hz

Response Time

10 ms

Mechanical

Housing Material

Plastic ABS

Optical Face Material

Plastic pane

Control Inputs

5-step rotary switch for operating modes selection
Push button for set-point teach

LED Indicators

Green: Power
Yellow: Output switching states
Green/Yellow Flashing 2.5 Hz: Teach indication
Green/Yellow Flashing 8.0 Hz: Teach error

Connection Type

4-Pin DC Micro (M12)

Supplied Accessories

None

Environmental

Operating Environment IP65

Vibration

10…55 Hz, 0.5 mm amplitude; 3 planes; meets or
exceeds IEC 60068-2-6

Shock

30 g; 11 ms: 3 planes: meets or exceeds
IEC 60068-2-27

Operating Temperature -30…50

°

C (-22…122

°

F)

Storage Temperature

-30…70°C (-22…158°F)