Keyence LR-W70 - User Manual

- 1 -
SET
NO/NC
(3sec)
MODE
LR-W series
STB C I
96M13827
Full-Spectrum Sensor
LR-W70(C)
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 for future reference.
The following symbols alert you to important messages. Be sure to read this section carefully.
Indicates a hazardous situation which, if not avoided, could result in death
or serious injury.
Indicates a situation which, if not avoided, could result in product damage
as well as property damage.
1. Introduction
1-1 Safety Precautions
• This product is only intended to detect object(s). Do not use this product
for the purpose of protecting a human body or a part of the human body.
• This product is not intended for use as an explosion-proof product. Do not
use this product in a hazardous location and/or potentially explosive
atmosphere.
• This product uses DC power. The product may explode or burn if an AC
voltage is applied.
• 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.
1-2 Precautions on Regulations and Standards
 CSA Certificate
This product complies with the following CSA and UL standards and has been certified by CSA.
Be sure to consider the following specifications when using this product as a CSA-certified
product.
• Applicable standards: CAN/CSA C22.2 No. 61010-1,
UL61010-1
• Use one of the following types of power supplies.
A CSA/UL certified power supply that provides Class 2 output as defined in the CEC (Canadian
Electrical Code) and NEC (National Electrical Code) or a CSA/UL certified power supply that
has been evaluated as a Limited Power Source as defined in CAN/CSA-C22.2 No.
60950-1/UL60950-1.
• Use this product at an altitude of 2000 m or less.
• Overvoltage category: I
• Pollution degree: 3
• Indoor use only.
 CE Marking
KEYENCE Corporation has confirmed, on the basis of the following specifications, that this
product complies with the essential requirements of the applicable EU Directive. Be sure to
consider the following specifications when using this product in a member state of the
European Union.
 EMC Directive
• Applicable standard: EN60947-5-2, Class A
These specifications 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 confirming the compliance of the end-product itself
according to the EMC Directive.
 Low-voltage directive
• Applicable standard: EN62471
1-3 Package Contents
• Sensor
• Instruction manual
1-4 Specifications
1-5 Part Functions

WARNING
NOTICE
WARNING
NOTICE
[SET] button
The operation of this button varies depending
on the sensitivity adjustment method.
( pages 3 to 5)
Indicator
Off: Output off
Orange: Output on
Red (flashing): Error
Green: Master
calibration reference
registered
Function Indicators
STB:
Illuminates green when receiving stable light
C: Illuminates green when using C/C+I mode
I: Illuminates green when using C+I/Super I mode
[] button
 Press (1s or less)
Adjusts setting value
( pages 3 to 5)
 Hold (3s or more)
Switches between N.O./N.C.
( page 2)
[] button
 Press (1s or less)
Adjusts setting value
( pages 3 to 5)
 Hold (3s or more)
Switches to the setting screen
( page 6)
LR-W70 LR-W70C
2 m cable type 4-pin M12 connector type
Power supply
voltage
Current
consumption
*4
Control output
External input
Enclosure
ratings
Ambient light
Ambient
temperature
Ambient
humidity
Shock
resistance
Vibration
resistance
Approx. 130 g
(including cable)
Approx. 75 g
Model
Response time
*1*2*3
Mater ial
Weight
Protection circuit
I/O
*5
Environmental
resistance
Power
supply
Timer function
Mutual interference
reduction function
Light source
Min. spot size
Detectable distance
-20 to +50°C (no freezing)
30 to 70 mm
Approx. 1.6x2.9 mm at 50 mm
200 μs
/1 ms /10 ms/100 ms/500 ms selectable
White LED
Up to 2 units with alternate frequencies set
IP65/IP67 (IEC60529)
Incandescent lamp: 10000 lux or less
Sunlight: 20000 lux or less
OFF/ON delay/OFF delay/One-shot
10 to 30 VDC, including 10% ripple (P-P), Class 2 or LPS
60 mA or less at 24 V (without load),
110 mA or less at 12 V (without load)
NPN open collector/PNP open collector selectable,
30 V or less, 50 mA or less, residual voltage: 2 V or less,
N.O./N.C. selectable
Tuning /Transmission OFF selectable,
Short-circuit current: NPN: 1 mA or less, PNP: 2 mA or less,
For the applied voltage, see the wiring diagrams
( page 2 in the instruction manual),
For the input times, see the time charts
( page 7 in the instruction manual)
Protection against reverse power connection, power supply surge,
output overcurrent, output surge, and reverse output connection
*5 IO-Link specification v.1.1/COM2 (38.4 kbps) is supported.
You can download a setup file from the KEYENCE website (http://www.keyence.com). If you
are using the product in an environment in which you cannot download files over the Internet,
contact your nearest KEYENCE office.
35 to 85%RH (no condensation)
10 to 55 Hz Double amplitude 1.5 mm in the X, Y, Z axis
directions respectively, 2 hours
Case: Zinc die cast (Nickel chrome plating)
Indicator cover: PPSU
Buttons: PES
Lens cover and display: PMMA (scratch-resistant coating)
Cable bushing (2 m cable type only): PBT
Cable (2 m cable type only): PVC
Connector ring (4-pin M12 connector type only): PMP
Connector socket (4-pin M12 connector type only): PEI
1,000 m/s
2
in X, Y, Z axis directions respectively 6 times
*1 When you set an alternate frequency, the response time becomes approximately 20%
slower.
*2 500 us/ 2.5 ms/ 20 ms/ 200 ms/ 999 ms (when using Difference Monitoring)
*3 400 us/ 2 ms/ 20 ms/ 200 ms/ 999 ms (when using 2-Point Matching)
*4 180 mA or less (at 10 V, with load)

Summary

1. Introduction to LR-W70(C) Sensor

1-1 Safety Precautions

Essential safety warnings and precautions for using the LR-W70(C) sensor.

1-2 Regulations and Standards Compliance

Details on CSA/UL and CE marking compliance for the sensor.

1-3 Package Contents

List of items included with the LR-W70(C) sensor.

1-4 LR-W70(C) Specifications

Comprehensive technical specifications for the LR-W70(C) sensor.

1-5 Sensor Part Functions

Explanation of the sensor's buttons, indicators, and their functions.

2. Installation and Wiring Guide

2-1 Sensor Installation

Instructions for proper mounting and installation of the sensor.

2-2 Wiring Instructions

Guidelines for wiring the sensor, including NPN/PNP output selection.

4. Basic Settings Configuration

4-1 Output Logic (N.O.;N.C.)

Configuring the sensor's output logic to Normally Open or Normally Closed.

4-2 Detection Mode Selection

Explanation and selection of the four available detection modes.

4-3 Spot;Mode Selection

Choosing between 1-Spot and 2-Spot detection modes.

5. Sensitivity Adjustment (1-Spot Mode)

5-1 Auto;C+I;C Mode Sensitivity

Methods for adjusting sensitivity in Auto, C+I, and C modes.

Color Variation and Setting Adjustment

Permitting color variations and adjusting the setting value.

5-2 Super I Mode Sensitivity

Super I Mode Display and Sensitivity

Understanding display values and setting sensitivity in Super I mode.

Super I Mode Calibration Methods

Sensitivity calibration techniques for Super I mode.

6. Sensitivity Adjustment (2-Spot Mode)

6-1 Difference Monitoring

Adjusting sensitivity for Difference Monitoring in 2-Spot mode.

6-2 2-Point Matching

Adjusting sensitivity for 2-Point Matching in 2-Spot mode.

7. Useful Functions

7-1 Key Lock Function

Preventing accidental setting changes with a key lock.

7-2 Initialization Procedure

Resetting the sensor to its factory default settings.

8. Settings Menu Operations

8-1 Spot;Mode Selection

Selecting the number of spots and detection mode.

8-2 Detection Mode

Choosing the desired detection mode.

8-3 Response Time Settings

Adjusting sensor response time for detection stability.

8-4 Timer Function Setup

Delaying the sensor output switching timing.

8-5 External Input Configuration

Configuring external input functions like calibration.

8-6 Display Selection Option

Option to turn the sensor display off.

8-7 Mutual Interference Reduction

Reducing interference between multiple LR-W sensors.

8-8 Detection Light Source

Selecting the light source for detection.

8-9 Master Calibration Set Value

Modifying the set value for master calibration.

8-10 Password Protection

Setting an optional password for key lock functionality.

9. Troubleshooting Sensor Issues

9-1 Error Display Meanings

Explanation of error codes and their corresponding solutions.

9-2 Error Output Conditions

Description of sensor output behavior during error states.

9-3 Default Settings and Values

A list of the sensor's initial settings and default values.

9-4 Other Operational Precautions

Precautions for luster canceling attachment and glossy targets.

9-5 Warranties and Disclaimers

Keyence LR-W70 Specifications

General

Model	LR-W70
Enclosure Rating	IP67
Light Source	Semiconductor laser
Laser Class	Class 2
Output Type	NPN/PNP open collector