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Installation Instructions
PHOTOSWITCHr Bulletin 45MLD Laser Diffuse Sensor
45MLD-8LEA1-P4
IMPORTANT: SAVE THESE INSTRUCTIONS FOR FUTURE USE.
Description
The 45MLD Class 2 Laser Diffuse Sensor introduces a whole
new perspective for today’s sensing solutions. Extreme
versatility allows the 45MLD sensor to meet most application
requirements and be a major asset in the packaging, material
handling, and semiconductor industry today.
The 45MLD laser diffuse sensor includes a 300mm (11.8in)
adjustable sensing range via the triangulation method which
implements the background suppression feature.
For sensing small targets a rotatable lens allows the user to
adjust the focal point of the laser beam down to 0.5mm
(0.01in).
Target presence status is provided through a discrete NPN or
PNP output within 200 microseconds which is compatible with
most control circuits found in factory automation systems.
This small, versatile sensor maintains all the ratings that are
necessary for all applicable industries today, IP65, CE, and
UL.
Features
S Adjustable beam spot size down to 0.5mm for precision
sensing
S Adjustable focal point from 50mm to 300mm
S Fast 200 microsecond response time for high-speed
sensing or counting
S Ideal sensing solution for semiconductor wafer mapping
S Timer option—40ms off delay (pulse stretcher)
—Activated with wiring change
S 10 to 30V DC operation
S NPN/PNP output
S IP65 housing
S UL and cUL listed and CE marked for all applicable
directives
Specifications
Approvals UL and cUL and CE marked for all applicable
Sensing Beam Visible red Class 2 Laser, 675nm
Sensing Range 50 to 300mm (2 to 12in)
Supply Voltage 10-30V DC
Current Consumption 35mA maximum
Circuitry Protection Reverse polarity, transient, overload, short circuit
Output Configuration NPN (current sinking) or PNP (current sourcing)
User Configuration
(optional)
Output Rating 100mA (NPN or PNP)
Response Time 200 microseconds (0.2 milliseconds)
Adjustments Range: (adjustment screw)
Housing Material Polyamide
Lens Material PMMA
Environmental Ratings IP65
Connections 4Ćpin DC pico (M8) connector
Operating Temperature
Leakage Current 12V Supply: 0.92mA @ 10mA load, 9.3mA @
directives
protection
Light Operate: Normally open contacts that
conduct with target present
Dark Operate: Normally closed contacts that
conduct with target absent
40ms off delay
Spot size (rotatable lens)
0_C to +50_C (32_F to 122_F)
100mA load
24V Supply: 0.73mA @ 10mA load, 6.7mA @
100mA load
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Installation
The 45MLD–8LEA1–P4 must be mounted to a firm stable
surface or support. A mounting, which is subject to excessive
vibrating or shifting may cause intermittent operation. For
installation convenience, we offer the following mounting
bracket (Catalog Number 60–2677).
Dimensions—mm (inches)
60
54
(2.12)
(2.36)
23
(0.90)
27
(1.06)
54
(2.13)
100
(3.94)
Laser
Optical Axis
28.7
(1.13)
76 (2.99)
60
(2.36)
4.8 (0.18) Dia.
9
(0.35)
41
(1.61)
18
(0.70)
Timer
Target
Supply
(Norm)
(0.83)
4.8 (0.18) Dia.
21.1
45
(1.77)
Range
Adjustment
1.9
(0.07)
4.1 (0.16) Dia.
Wiring Diagrams
NPN (Light Operate)
Blue
3
White
2
Black
4
1
Load
Brown
NPN (Dark Operate)
Brown
1
White
2
Black
4
3
Ê 40ms off delay timer “Active” = Tie White Wire to (+) positive terminal.
40ms off delay timer “Inactive” = Open circuit or tie White Wire to (–) negative terminal.
Load
Blue
PNP (Light Operate)
+
Ê
–
+
–
PNP (Dark Operate)
+
Ê
–
+
–
6
(0.23)
Brown
1
White
2
Black
4
3
3
2
4
1
Blue
Blue
White
Black
Brown
Load
Load
+
Ê
–
+
Ê
–
Pico
24
13
Pico
24
13
2