Rockwell Automation 45LPT User Manual

Installation Instructions

PHOTOSWITCHr Bulletin 45LPT Optical Label Sensor

45LPT-1LEB1-P4

IMPORTANT: SAVE THESE INSTRUCTIONS FOR FUTURE USE.

Description

The 45LPT is an optical label sensor designed exclusively for
the detection of standard or opaque labels on a high speed
web. The 45LPT provides a solution for the packaging
industry. Applications include label counting, web detection,
“double sheet” detection, and mark detection on a translucent
film.

Using transmitted beam technology the 45LPT senses the
leading edge of a label sending a discrete NPN or PNP output
within 50 microseconds which is compatible with most control
circuits found in factory automation systems. Other features
include “One Touch” teachable capabilities using either the
teach button on the sensor or remotely with a pushbutton
switch. For easy installation and versatility this sensor is
equipped with a 4-pin pico connector.

The 45LPT label sensor maintains all ratings that are
necessary for all applicable industries today: IP65, CE, cULus.

Features

S “One Touch” local and remote teach capability
S 10 to 30V DC operation
S Fast 50µsec response time
S NPN/PNP output
S User interface lockout feature
S IP65 Housing
S Industrial anodized aluminum housing
S cULus listed and CE marked for all applicable directives

Specifications

Approvals UL and cUL and CE marked for all applicable

Sensing Beam Nonpulsed IR

Sensing Gap 3mm (0.12in)

Supply Voltage 10-30V DC

Current Consumption 40mA maximum

Circuitry Protection Reverse polarity, transient, overload, short circuit

Output Configuration NPN (current sinking) or PNP (current sourcing)

User Configuration Local and remote teach

Output Rating 100mA (NPN or PNP)

Response Time 50 microseconds

Adjustments Sensitivity (teach button)

Housing Material Anodized aluminum

Environmental Ratings IP65

Connections 4Ćpin DC pico (M8) connector

Operating Temperature

Leakage Current 12V Supply: 0.78mA @ 10mA load, 6.9mA @

Power-on Delay 350ms

directives

protection

Light Operate: Normally open circuits that conduct
with target present
Dark Operate: Normally closed circuits that
conduct with target absent

-20_C to +60_C (-4_F to 140_F)

100mA load

24V Supply: 0.30mA @ 10mA load, 3.0mA @

100mA load

User Interface

Test your setup by ensuring the green LED on the user
interface blinks when the label is inserted and removed.

To lock out user interface hold down teach button for six
seconds until red LED blinks once.

Teach Button

LEDs

Red LED = Interface Lockout
Green LED = Power ON / Free light path
Red LED blinks = Standard label teach
Green LED blinks = Fine teach – translucent label teach
Red & Green LED blink = Short circuit mode or label too
translucent or web too opaque

Teaching Sensor and Setup

Initial setup includes mounting the sensor securely and then
providing power through a 4-pin pico cordset. The initial
factory settings have the threshold on the sensor preset so
that most opaque labels may be sensed on a translucent web.

Release button and notice that both red and green LEDs are
illuminated on the user interface.

To unlock user interface hold down teach button for six
seconds until red LED turns off.

Release button and notice that only green LED is illuminated.

For remote teach follow the instructions in the wiring section
using a momentary pushbutton switch.

Teaching Translucent Labels:

To teach the sensor insert the material to be sensed into the
fork so that it enters the beam path.

Position the material so that the translucent web is in the
beam path in the fork.

Press and release the teach button twice. The green LED on
the user interface will begin to blink.

While the green LED is blinking quickly insert and remove the
translucent label into and out of the sensors beam path until
the green LED stops blinking.

Test your setup by ensuring the green LED on the user
interface blinks when the label is inserted and removed.

To lock out user interface hold down teach button for six
seconds until red LED blinks once.

Teaching Most Opaque Labels (on translucent web):

To teach the sensor insert the material to be sensed into the
fork so that it enters the beam path.

Position the material so that the translucent web is in the
beam path in the fork.

Press and release the teach button once. The red LED on the
user interface will begin to blink.

While the red LED is blinking quickly insert and remove the
opaque label into and out of the sensors beam path until the
red LED stops blinking.

Release button and notice that both red and green LEDs are
illuminated on the user interface.

To unlock user interface hold down teach button for six
seconds until red LED turns off.

Release button and notice that only green LED is illuminated.

For remote teach follow the instructions in the wiring section
using a momentary pushbutton switch.

Important:For Label detection use Dark operate.

For Web detection use Light operate.

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