Rockwell Automation 45LSP_LST Optical Fork Sensors Profile - Manual

45LSP and 45LST Optical Fork Sensors
The Reliability of Transmitted-Beam Sensing
in an Easy-to-Apply, Self-Contained Package
Transmitted beam photoelectric
sensors are the most accurate and
reliable solution for a wide range
of applications based on the fact
that they are the most tolerant of
variations in target characteristics
(color, texture, refl ectivity) while
maintaining optimal performance in
dusty, dirty environments. And when
it comes to small parts detection,
transmitted beam fi ber optic sensors
are the most commonly used – but
alignment of the emitter and receiver
heads is often diffi
cult and time
consuming. As a result, photoelectric
fork sensors that combine the emitter
and receiver in a single housing while
maintaining the transmitted beam
sensing mode have become the
preferred solution.
Plastic and Metal
Housings to Suit a Range
of Applications
Ideal for small object detection
(as small as 0.2 mm) in the
pharmaceutical/life sciences, food
and beverage, as well as Home,
Health & Beauty industries, the new
Allen-Bradley 45LSP plastic fork sensors
off er the reliability of a transmitted
beam sensing mode in a single IP67
enclosure. The visible red light beam
and teach-in sensitivity adjustment –
via push-button or remotely through
wiring – signifi cantly reduce setup
time. Sensitivity adjustments can also
be locked on remote teach models to
prevent tampering in the fi eld.
Output status of the 45LSP is clearly
visible from all angles thanks to
multiple LEDs along both sides of the
fork. PNP or NPN output models are
available with a fast 250 μs response
time and selectable light operate/dark
operate switching. Plus, the range
of gap sizes (30, 50, 80, 120 mm),
3-pin pico M8 connectivity (4-pin
pico M8 for remote teach
models) and multiple
mounting options
(via side thru-holes,
rear threaded
inserts, or
dovetail
brackets)
make the 45LSP an economical, easy
to use solution for a broad range of
applications. In addition to small
object detection, these include but
are not limited to edge detection,
parts counting, gear tooth detection
and dimension verifi cation.
The 45LST is a metal-bodied fork
sensor, designed for similar
applications in more demanding
environments such as those in the
automotive, material handling and
paper industries. With available gap
sizes from 2 to 225 mm, these sensors
feature a sensitivity adjustment
potentiometer and selectable PNP/
NPN output with light operate/
dark operate switching. The 2 mm
model off ers fast 30 μs response time
for high speed applications; other
models off er 1 ms response time.
The IP65 enclosure rating, 4-pin pico
M8 connector and side thru-hole
mounting make the 45LST a rugged
yet easy to apply solution.
Both the 45LSP and 45LST sensors
are cULus listed and CE marked for
all applicable directives.
By eliminating the alignment and adjustment issues associated
with other transmitted beam sensing solutions, optical fork
sensors are the most easy-to-apply and cost-eff ective method for
small part detection and counting in a wide range of industries.
Rockwell Automation® has expanded its photoelectric fork sensor
off ering to include new plastic housing models that are the ideal
general purpose complement to the existing line of Allen-Bradley
metal-bodied fork sensors.