Keyence LR-ZH490CB - User Manual

1
Self-contained
CMOS Laser Sensor
LR-ZH

B Series
Instruction Manual
Read this manual before using the product in order to achieve maximum performance.
Keep this manual in a safe place after reading it so that it can be used at any time.
The following symbols alert you to important messages.
Be sure to read these messages carefully.
DANGER
It indicates a hazardous situation which, if not avoided, will result
in death or serious injury.
WARNING
It indicates a hazardous situation which, if not avoided, could
result in death or serious injury.
NOTICE
It indicates a situation which, if not avoided, could result in product
damage as well as property damage.
1. Introduction (1)
1-1 Safety Information for LR-ZH Series
DANGER
• Do not use this product for the purpose to protect a human body
or a part of human body.
• This product is not intended for use as explosion-proof product.
Do not use this product in a hazardous location and/or potentially
explosive atmosphere.
WARNING
This product is a sensor of direct current power supply type.
Do not apply alternating current. Doing so may cause rupture or
burnout.
NOTICE
• Do not wire this product along with power lines or high-tension
lines. Doing so may lead to product malfunctions or damage due
to noise.
• Do not use this product outdoors or in a place where extraneous
light can enter the light-receiving element directly.
• Use with an over current protection device which is rated 30 V or
more and not more than 1 A.
1-2 Safety Precautions on Laser Product
This product employs a semiconductor laser for its light source.
Item Description
Wavelength /Output /Pulse width
660 nm/1.0 mW/330 ms
FDA(CDRH) Part1040.10
Class
laser product
IEC 60825-1 (JIS C 6802) Class 2 laser product
Follow the instructions mentioned in this manual. Otherwise, injury to the human body
(eyes and skin) may result.
WARNING
• Use of controls or adjustments or performance of procedures
other than those specied herein may result in hazardous
radiation exposure.
• Do not disassemble, remodel or repair this product. Laser
emission from this product is not automatically stopped when it
is disassembled.
• Precautions on Class 2 Laser Product
- Do not stare into the direct or specularly reected beam.
- Do not direct the beam at other people or into areas where other
people unconnected with the laser work might be present.
- Be careful of the path of the laser beam. If there is a possibility
that the operator may be exposed to the specular reections,
block the beam by installing a protective enclosure.
- Install the products so that the path of the laser beam is not as
the same height as that of human eye.
 Location of label and laser emission point
Laser emission point
Label
z FDA warning/certication/identication label (included with the
product, English)
Regardless of the country or region the product is used, afx the FDA warning/certication/
identication label included in the package of this product as shown on the illustration.
(Afx this label in a location that is not splashed with oils or chemicals.)
z Laser warning/explanation labels (included with the product in each
language)
When using this product outside of U.S., use the suitable warning/explanation label
included in the package of this product according to the countries and/or regions where
this product is used. In this case, it can be afxed on the FDA warning label, which has
already been afxed to this product.
1-3 Precautions on Regulations and Standards
 UL Certication
This product is an UL/c-UL Listed product.
• UL File No. E301717
• Category NRKH, NRKH7
Be sure to consider the following specications when using this product as a UL/c-UL
Listed Product.
• Use a power supply with Class 2 output dened in NFPA70 (NEC: National Electrical
Code).
• Power supply, External input and Control output circuits shall be connected to a single
Class 2 source only.
• Install the product at the ambient temperature 45°C or below when using with following
optional cable. (OP-75721, OP-85502, OP-75722, OP-87274)
 CE Marking
KEYENCE Corporation has conrmed, on the basis of the following specications, that this
product complies with the essential requirements of the applicable EU Directive. Be sure
to consider the following specications when using this product in a member state of the
European Union.
z EMC Directive
Applicable standard: EN60947-5-2, Class A
Remarks: These specications do not give any guarantee that the end-product with this
product incorporated complies with the essential requirements of the EMC Directive. The
manufacturer of the end-product is solely responsible for conrming the compliance of the
end-product itself according to the EMC Directive.
 FCC Regulations
This product complies with the following regulations specied by the FCC.
• Applicable regulation FCC Part 15 Subpart B ClassA
• This device complies with part 15 of the FCC Rules. Operation is subject to the following
two conditions: (1) This device may not cause harmful interface, and (2) this device
must accept any interference received, including interference that may cause undesired
operation.
96M14150

Summary

Introduction and Safety Information

LR-ZH Series Safety Information

Key safety precautions for operating the LR-ZH Series sensor.

Laser Product Safety Precautions

Essential safety measures to prevent hazards from the laser emission.

Regulatory and Standards Compliance

Information on compliance with relevant regulations and industry standards.

Sensor Specifications and Package Contents

LR-ZH Series Detailed Specifications

Comprehensive technical specifications covering performance, environment, and materials.

Product Package Contents

List of all items included in the sensor package upon delivery.

Installation and Wiring Guide

I;O Circuit Diagrams

Electrical schematics illustrating I/O connections for sensor operation.

Sensor Wiring Instructions

Step-by-step guidance on how to correctly wire the sensor.

Sensor Installation and Mounting

Procedures and torque specifications for proper sensor installation.

Basic Sensor Settings

Part Identification and Functions

Overview of sensor components and their respective operational functions.

Initial PNP;NPN Output Selection

Required initial setup to select PNP or NPN output mode.

Output Mode Configuration (L.ON;D.ON)

Setting the sensor to operate in Light-ON or Dark-ON mode.

Sensitivity Adjustment Methods

Guides for adjusting sensitivity for various detection scenarios and targets.

Advanced Sensor Settings

Key Lock and Initialization

Functions for locking settings and returning the sensor to factory defaults.

Advanced Configuration Options Part 1

Response Time Adjustment

Configuring the sensor's response time to balance speed and stability.

Delay Timer Setup

Setting a delay for the sensor's output signal.

Timer Duration Settings

Specifying the length of time for the configured delay timer.

External Input Signal Configuration

Managing functions triggered by external input signals.

DSC Function for Stability

Settings for the DSC function to improve detection stability.

Hold Function for Peak;Bottom Values

Using the hold function to capture peak or bottom detected values.

Shift Function for Calibration

Adjusting display values during calibration with the shift function.

Clamp Function for Output Status

Maintaining output status when light is not received.

Display Settings

Customizing how the sensor's display operates.

Advanced Configuration Options Part 2

Response Time Optimization

Fine-tuning sensor response time for specific application needs.

External Input Functions

Detailed functions controlled by external input, including Tuning and Transmission OFF.

DSC Function Details

In-depth explanation of DSC function operation and correction times.

Hold Function Operation

Step-by-step procedure for setting and using the hold function.

Shift Function Usage

How to use the shift function for calibration and display adjustments.

Clamp Function Usage

Maintaining output and display values with the clamp function.

Troubleshooting and Error Resolution

Universal Change Detection Notes

Important considerations and potential issues when using Universal Change Detection.

Sensor Error Displays and Remedies

Guide to interpreting error codes and resolving sensor issues.

Default Settings and Values

Reference list of the default factory settings for sensor parameters.

Keyence LR-ZH490CB Specifications

General

Response Time	1 ms
Power Supply	12 to 24 VDC ±10%
Protection Rating	IP67
Type	Laser Sensor
Series	LR-Z
Operating Temperature	-10 to +55 °C
Output	NPN open-collector
Current Consumption	40 mA max.
Light Source	Red laser diode, Class 1