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Rockwell Automation 45LSP Optical Fork PHOTOSWITCH Photoelectric Sensors User Manual

Rockwell Automation Equipment

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Installation and Operating Instructions

Bulletin 45LSP Optical Fork PHOTOSWITCH

r Photoelectric Sensors

IMPORTANT: SAVE THESE INSTRUCTIONS FOR FUTURE USE.

Refer to the product catalog pages for additional information.

Description

The 45LSP is a family of optical fork sensors housed in a
plastic enclosure. Fork sensors offer self-contained
transmitted beam sensing, ideal for applications that require
reliable parts detection. A simple push button teach-in
sensitivity adjustment, several connection options and
multiple mounting features (via side thru-holes, rear threaded
inserts or optional dovetail bracketry) make the 45LSP an
economical, easy-to-use solution for typical applications such
as small part detection, edge detection, part counting, gear
tooth detection and dimension verification.

Features

S Detection of objects as small as 0.2 mm (0.0078 in.)
S Highly visible power and output LED indicators with output

indication along both sides of the fork

S Remote teach and teach button lock on 4-pin models
S Light or dark operate selectable
S Multiple mounting options: thru-holes, threaded holes and

dovetail

S Easy installation with no alignment required
S IP67 enclosure

User Interface

LED Color

State

Status

Orange

OFF

Output de-energized

ON

Output energized

Flashing

Teach mode or short circuit
protection active

Green

OFF

Power is OFF

ON

Power is ON

Flashing

Teach mode

Specifications

Certifications

cULus and CE Marked for all applicable directives

Optical
Sensing Gap

30 mm
(1.18 in.)

50 mm
(1.97 in.)

80 mm
(3.15 in.)

120 mm
(4.72 in.)

Smallest Detectable
Target

0.2 mm
(0.07 in.)

–

0.2 mm (0.007 in.)

0.4 mm
(0.02 in.)

Light Source

Visible red (640 nm)

Sensitivity Adjustment

Teach button and remote teach

Electrical
Voltage

10

…30 V DC

Current Consumption

30 mA max.

Protection

Reverse polarity and short circuit

Outputs
Response Time

250

µs

Output Type

PNP or NPN

Output Mode

Light or dark operate selectable

Output Current

100 mA max.

Mechanical
Housing Material

Polycarbonate

Connection Types

3-pin pico QD, 4-pin pico QD

Optional Accessories

44B-BKT dovetail mounting bracket and cordsets

Environmental
Environmental Rating

IP67

Operating Temperature

-10

…+60 °C (14…140 °F)

– For detection of objects less than 0.9 mm (0.035 in.), the object should be placed ≥10 mm

(0.39 in.) away from the LED light source.

Teach button

Green LED

Orange LED

Orange LED