KEYENCE LR-TB5000 User Manual

WARNING

NOTICE

WARNING

NOTICE

WARNING

Laser emission
point

Laser warning and
explanation label

Class 2 (English) Class1

Class 2 (included with the product in each language)

96M12739

All-Purpose Laser Sensor

LR-TB5000 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.

It indicates a hazardous situation which, if not avoided, could result in
death or serious injury.

It indicates a situation which, if not avoided, could result in product
damage as well as property damage.

 Laser warning and explanation labels

XX-XXXX

1567

1

1234

2

MODE

DISP

z Laser warning and explanation labels

• Attached to the cable

1 Introduction

Safety Information for LR-TB Series

• This product is only intended to detect object(s). Do not use this
product for the purpose to protect a human body or part of a 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 the cable along with power lines or high-tension lines,
as the sensor may malfunction or be damaged due to noise.

• When using a commercially available switching regulator, ground
the frame ground terminal and ground terminal.

• Do not use this product outdoors or in a location in which its
light-receiving surface will come in direct contact with stray ambient
light.

Safety Precautions on Laser Product

This product uses a semiconductor laser as its light source.

• Use of controls or adjustments or performance of procedures other
than those specified herein may result in hazardous radiation
exposure.

• Follow the instructions mentioned in this manual. Otherwise, injury
to the human body (eyes and skin) may result.

• Laser emission from this product is not automatically stopped when
it is disassembled. Do not disassemble this product.

• Precautions on Class 2 Laser Product

- Do not stare into the direct or specularly reflected beam.

- Do not direct the beam at people or into areas where people

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 or diffuse reflections, block the beam by installing a
protective enclosure.

- Install this product so that the path of the laser beam is not as the

same height as that of human eye.

• Precautions on Class 1 Laser Product

- Do not stare into the direct or specularly reflected beam.

Item Description

Model

Wavelength 660 nm

Pulse width 4.3 ns

FDA(CDRH)
Part1040.10

JIS C 6802/
IEC 60825-1

* The laser classification for FDA (CDRH) is implemented based on IEC60825-1 in

accordance with the requirements of Laser Notice No.50.

Laser class* Class 2 laser product Class 1 laser product

Output 1.0 mW 390 μW

Laser class Class 2 laser product Class 1 laser product

Output 1.0 mW 390 μW

LR-TB5000

LR-TB5000C

LR-TB5000CL

• Included with the product

* For a Class 2 laser product, select from the warning and explanation labels included

in the package the appropriate warning and explanation label according to the coun­try and region where the Class 2 laser product will be used. Then, affix the warning
and explanation label over top of the existing warning and explanation label on the
product.

Precautions on Regulations and Standards

 CSA Certificate

LR-TB series complies with the following CSA and UL standards and has been certified by
CSA (Class 2252 06 / Class 2252 86).

• Applicable standard: CAN/CSA C22.2 No.61010-1

• Use the following power supply.
CSA/UL certified power supply that provides Class 2 output as defined in the CEC
(Canadian Electrical Code) and NEC (National Electrical Code), or 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 the altitude of 2000 m or less.

• Use this product at the level of overvoltage category I.

• Use this product at pollution degree 3.

• Indoor use only.

 CE Marking

Keyence Corporation has confirmed that this product complies with the essential
requirements of the applicable EC Directive, based on the following specifications.
Be sure to consider the following specifications when using this product in a member state
of the European Union.

z EMC Directive (2004/108/EC)

• Applicable standard EMI : EN60947-5-2, Class A

z Low-voltage Directive (2006/95/EC)

• Applicable standard: EN61010-1, EN60825-1

• Use the power supply that has been evaluated as a Limited Power Source as defined in
IEC60950-1/EN60950-1.

• Use this product at the altitude of 2000 m or less.

• Use this product at the level of overvoltage category I.

• Use this product at pollution degree 3.

• Indoor use only

Remarks: 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 the compliance of
the end-product itself according to the EMC Directive.

UL61010-1

EMS : EN60947-5-2

1

Package Contents

Indicator

Output 1 ON : Orange*
Output 1 OFF: Green*
Error : Flashing red
* The indicator flashes when two conditions below

are met;

• Stability output tur ns ON ( page 10).

• Output 1 turns OFF when output logic is N.O. or
turns ON when output logic is N.C.

[SET] Button

The operation of this button varies
depending on the detection mode
( page 5).
Example: 2-point calibration

1. Press this button with no workpiece
present.

2. Press this button with a workpiece
present.

[DISP/S] Button

 Pressed for 1 second or less:

Changes the setting value ( page 7)

 Held for 3 seconds or more:

Switches to the display screen ( page

8)

[MODE/T] Button

 Pressed for 1 second or less:

Changes the setting value ( page 7)

 Held for 3 seconds or more:

Switches to the setting screen ( page

9)

Load (input device)

Analog current or voltage input device

1, brown

4, black

2, white

3, blue

20 ... 30 V

0 V

1, brown

4, black

2, white

3, blue

20 ... 30 V

0 V

1, brown

4, black

2, white

3, blue

20 ... 30 V

0 V

1, brown

4, black

2, white

3, blue

20 ... 30 V

0 V

• Main unit

• Instruction manual

• Laser warning and explanation labels (LR-TB5000/LR-TB5000C only)

Specifications

Part Functions

Model

Detectable distance

Spot diameter Variable (use a spot diameter of 40 mm or less)

Response time

Light source

Mutual interference prevention
function

Timer OFF/OFF delay/ON delay/One-shot

Power voltage 20 to 30 VDC, including 10% ripple (P-P), Class 2 or LPS

Current consumption 50 mA or less (without load)

*4*5

I/O

Protection circuit

Environmental
resistance

Material

Weight

Cable

Cable with
connector M12

*1

Type Red laser (660 nm)

Laser class

Control output

External input

Analog output

Enclosure rating IP65/IP67 (IEC60529)

Ambient light Incandescent lamp/Sunlight: 100000 lux or less

Ambient
temperature

Ambient humidity 35 to 85%RH (no condensation)

Shock resistance 1000m/s2 in X, Y, Z axis directions respectively 6 times

Vibration resistance

LR-TB5000 -

LR-TB5000C LR-TB5000CL

60 to 5000 mm

1 ms/10 ms/25 ms/

100 ms/1000 ms

selectable

Class 2 laser product

IEC60825-1,FDA(CDRH)

Part1040.10

4 units (when using the interference prevention function)

NPN open collector/PNP open collector selectable

Residual voltage: 2 V or less, N.O./N.C. selectable

Short-circuit current: 1 mA or less for both NPN and PNP

For the applied voltage, see the wiring diagrams

Current output: 4 to 20 mA with a max. load resistance

Voltage output: 0 to 10 V with an external load resistance

Protection against reverse power connection,

power supply surges, output overcurrent, output surge,

10 to 55 Hz Double amplitude 1.5 mm in the X, Y, Z axis

Case: Zinc die cast (Nickel chrome plating), I

and buttons: PES, Lens cover and display: PMMA

M12 connector (only for the cable with connector M12 type):

Cable type: Approx. 200 g (Including cable)

Cable with connector M12 type: Approx. 160 g

*2

30 VDC or less, 50 mA or less,

Transmission OFF / Tuning /

Reference surface update selectable

( page 2 in the instruction manual).

For the input times, see the time charts

( page 4 in the instruction manual).

Current output / Voltage output selectable

of 5 kΩ or more

and reverse output connection

-20 to +55°C (no freezing)

directions respectively, 2 hours

(scratch-resistant coating specifications),

Cable bushing: PBT, Cable: PVC,

TPE, PBT, Nickel-plated brass

2 ms/20 ms/50 ms/

200 ms/2000 ms

Class 1 laser product

IEC60825-1,FDA(CDRH)

Part1040.10

of 500 Ω

*1 The range for displayable distance is from 50 to 5200.
*2 The laser classification for FDA (CDRH) is implemented based on IEC60825-1 in

accordance with the requirements of Laser Notice No.50.
*3 150mA or less (with load)
*4 You can select the I/O from the following combinations.

Control output × 2, control output + external input, control output + analog output,

external input + analog output

(For details on the setting method, see page 3 of the instruction manual.)
*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.

selectable

*3

ndicator cover

XX-XXXX

1
2

1567

1234

DISP MODE

*2

For a more detailed explanation, see "Switching between Display Screens" (page 8).

2 Installation and Wiring

Installation

• Tightening torque for the mounting holes: 1.5 N·m (M4 screw)

• If the detecting object has a mirrored surface, install the sensor in a position where
specular reflection will not penetrate the optical receiver.

Wiring

With the LR-TB Series, you can select the functions of the I/O wires (black and white) from
the combinations shown below during the initial settings. "3 Initial Settings" (page 3)
Independently isolate any I/O wires that you will not use.

 Out1+Out2

z NPN z PNP

 Input+Out1

z NPN z PNP

2

 Out1+Analog

1, brown

4, black

2, white

3, blue

20 ... 30 V

0 V

1, brown

4, black

2, white

3, blue

20 ... 30 V

0 V

1, brown

4, black

2, white

3, blue

20 ... 30 V

0 V

1, brown

4, black

2, white

3, blue

20 ... 30 V

0 V

1

2

3

4

5

6

7

8

WIDE

NARROW

Use the dial on the back of the sensor
to adjust the spot diameter.

1

2

3

4

5

6

7

8

WIDE

NARROW

0X mm

Diameter of approx. 6 mm

1

2

3

4

5

6

7

8

WIDE

NARROW

0 X mm

Diameter of approx. 40 mm

3-1. I/O
Selection
( page 4)

3-2. External
Input Selection
( page 4)

3-5. NPN/PNP
Selection
( page 4)

3-3. Analog
Selection
( page 4)

3-4. Analog
Lower Limit
( page 4)

3-4. Analog
Upper Limit
( page 4)

z NPN z PNP

3 Initial Settings

When you turn on the LR-TB Series for the first time after you purchase it or when you have
initialized the LR-TB Series, the following initial settings must be configured.

Display Units

and

Press for 3 seconds or more

 Input+Analog

z NPN z PNP

Adjusting the Spot Diameter

Narrow Spot Setting

NARROW 1 2 3

X (Approx.) 500 1000 2000

Parallel Light Setting

WIDE

NARROW

4

3

5

6

7

1

8

2

Start Config.

Select I/O

Out1+Out2

Out1+Out2

Select Output

NPN

Input+Out1

mm
inch
feet

Out1+Out2
Input+Out1
Out1+Analog
Input+Analog

Select Input

Laser Off

Select Analog

4 - 20 mA

Analog Scaling

4 mA = 0

Analog Scaling

20 mA = 5000

NPN
PNP

Out1+Analog or Input+Analog

Laser Off
Tuning
DATUM Preset

4 - 20 mA
0 - 10V

9999
...

0

9999
...

0

Wide Spot Setting

WIDE5678

X (Approx.) 5000 3000 1500 750

• When detecting objects that have holes in them, you can perform stable detection by
making the spot diameter larger.

• Set the spot diameter so that it is 40 mm or less at the desired detecting distance.

End Config.

1
2

1234

500

•

After you have finished configuring the initial settings, you will not be able to reconfigure the
unit, I/O, analog selection, or NPN/PNP selection. To change any of these settings, you will

RUN

have to initialize the product . "Initialization" (page 8).

3

3-1. I/O Selection

Input

ON

> 60 ms

> 60 ms

OFF

Updated reference surface

Updated output

Input

ON

> 5 ms

< 60 ms

Response

time

OFF

Analog 4 mA 0

Analog 20 mA 5000

Analog 4 mA 4000

Analog 20 mA 2000

Analog 4 mA 2000

Analog 20 mA 4000

10 V

0 50 5000

0 V

10 V

0 2000 4000

0 V

10 V

0 2000 4000

0 V

Analog 0V

2000

Analog 10V

4000

Analog 0V

4000

Analog 10V

2000

Analog 0V

0

Analog 10V

5000

Select from the following table the functions assigned to the I/O wires (black and white).

Options Black Wire White Wire

Out1 + Out2 Output 1 Output 2

Input + Out1 External input Output 1

Out1 + Analog Output 1 Analog output

Input + Analog External input* Analog output

The functions assigned to output 1, output 2, and external input can be changed after you
finish configuring the initial settings. "6 Detailed Settings" (page 9).
* Would be fixed to transmission OFF.

3-2. External Input Selection

 Transmission OFF [Laser Off]

The laser beam transmission is stopped.

ON

Input

OFF

Transmission TransmissionOFF

< 5 ms < 50 ms

 External Calibration [Tuning]

When selected, this external input performs the same function as pressing the [SET]
button.

3-4. Analog Lower and Upper Limits

Configure scaling settings, if necessary.

 Current output (4 to 20 mA)

z Initial settings z When settings are changed

20.5 mA
20 mA

4 mA

3.8 mA

0 50 5000

(example)

20.5 mA
20 mA

4 mA

3.8 mA

0 2000 4000

20.5 mA
20 mA

4 mA

3.8 mA

 Reference surface update [DATUM Preset]

When the detection mode ( "4 Detection Mode" [page 5]) is set to "DATUM mode," this
external input updates the reference surface.

3-3. Analog Selection

Select from the following values.

• Current output: 4 to 20 mA

• Voltage output: 0 to 10 V

0 2000 4000

For details on the analog output when an error occurs, see " Output When an Error
Occurs" (page 11).

■

Voltage output (0 to 10V)

●

Initial settings

●

When settings are changed

(example)

For details on the analog output when an error occurs, see " Output When an Error
Occurs" (page 11).

3-5. NPN/PNP Selection

You can select between NPN outputs or PNP outputs. For details, see "Wiring" (page

2).

4

4 Detection Mode

1567

1234

XX-XXXX

DISP MODE

1
2

A-A

0

ON

ON

N.O.

N.C.

OFF

OFF

Hys.

Hys.

A: Setting value

Hys: Hysteresis ( page 11)

Reference surface

1567

1234

XX-XXXX

DISP MODE

1
2

1567

1234

XX-XXXX

DISP MODE

1
2

ON

A

-A

ON

N.O.

N.C.

OFF

OFF

1

2

Reference surface

Press the set button for 1 second or less.

Press and hold the set button for 3 seconds or more.

Completion

1567

1234

XX-XXXX

DISP MODE

1
2

Hys.

ON

ON

A

0

5000

N.O.

N.C.

OFF

OFF

A: Setting value

Hys: Hysteresis ( page 11)

1567

1234

XX-XXXX

DISP MODE

1
2

1

2

1567

1234

XX-XXXX

DISP MODE

1
2

1567

1234

XX-XXXX

DISP MODE

1
2

ON

ON

N.O.

N.C.

OFF

OFF

Press the set button for 1 second or less.

Setting value

Press the set button for 1 second or less.

Completion

The LR-TB Series has four output modes and three detection modes.

Output Mode ( page 10) Detection Mode

Standard (default value) [Standard]

Window [Window] 4-3. Window mode

Stability [Stability] ( page 10)

Error [Error] ( page 10)

When the output modes for Out1 & Out2 are either [Standard] or [Window], the detection
modes can only be set in the below combinations.
[Out1] / [Out2] = [DATUM]/ [DATUM], [Distance]/ [Distance], [Distance]/ [Window],
[Window]/ [Distance], [Window]/ [Window]

4-1. DATUM Mode (FGS)

 Operation

• In this mode, the change in position from a reference surface (which has a value of 0) is
displayed.

• This mode is useful in detecting the passage of workpieces in front of a stationary
background.

4-1. DATUM mode (FGS)

4-2. Distance mode (BGS)

4-2. Distance Mode (BGS)

 Operation

• In this mode, the distance from the sensor is displayed.

 Setting

• Set the detection mode to [Standard], which is the default value. "6 Detailed
Settings" (page 9)

• For details on setting output 2, see " 4-5. Switching Out1/Out2" (page 7)

z

2-point calibration

 Setting

• Set the output mode to [Standard], which is the default mode. "6 Detailed Settings"
(page 9)

• For details on setting output 2, see " 4-5. Switching Out1/Out2" (page 7).

• In DATUM mode, a "±" is displayed in front of the setting value.

5

z

1567

1234

XX-XXXX

DISP MODE

1
2

1

2

1567

1234

XX-XXXX

DISP MODE

1
2

1567

1234

XX-XXXX

DISP MODE

1
2

N.O.

N.C.

ON

OFF

ON

OFF

Press and hold the set button
for 3 seconds or more.

Completion

Press and hold the set button
for 3 seconds or more.

The object is detected while
the button is pressed.

1

N.O.

N.C.

1567

1234

XX-XXXX

DISP MODE

1
2

ON

OFF

ON

OFF

1567

1234

XX-XXXX

DISP MODE

1
2

Press and hold the set button
for 3 seconds or more.

Completion

Hys: Hysteresis ( page 11)

Completion

Press the set button for 1 second or less.

Press the set button for 1 second or less.

Full auto calibration

Use this function when the movement of detected objects cannot be stopped.

4-3. Window Mode

 Operation

• In this mode, the distance from the sensor is displayed.

• You can assign setting values to the upper and lower limits

5000

ON

N.O.

OFF

ON

N.C.

OFF

Hys. Hys.

 Setting

• Set the detection mode to [Window]. "6 Detailed Settings" (page 9)

• For details on setting output 2, see " 4-5. Switching Out1/Out2" (page 7).

z

2-point calibration

Use this function to detect objects inside a range of specific upper and lower limits.

NEARFAR

0

XX-XXXX

1
2

1567

1234

DISP MODE

1

XX-XXXX

1
2

1567

1234

DISP MODE

z

1-point calibration

Use this function to enable the installation of detected objects at the upper limit that you
do not want to detect.

2

XX-XXXX

1
2

1567

1234

DISP MODE

NEARFAR

XX-XXXX

1
2

1567

1234

N.O.

N.C.

ON

OFF

ON

OFF

DISP MODE

6

z

Press and hold the set button for 3 seconds or more.

Completion

RUN

1567

1234

XX-XXXX

DISP MODE

1
2

1...9999

1567

1234

1
2

1567

1234

1
2

Press the [DISP/S] or the [MODE/T] button
(for 1 second or less).

3 seconds

XX-XXXX

DISP MODE

RUN

FAR

NEAR

1...9999

1567

1234
1789

1

2

N

N

F

1567

1234
1789

1
2

F

N
F

1567

1234
1789

1

2

N

F

1567

1234
1789

1

2

N
F

Press the [DISP/S] or the [MODE/T] button
(for 1 second or less).

3 seconds 3 seconds

Press the [DISP/S] or the [MODE/T] button
(for 1 second or less).

3 seconds

3 seconds 3 seconds

1567

1234

XX-XXXX

DISP MODE

1
2

1567

1234

1
2

Out2 1456

S

Out1 1234

Out1 1234

Out2 1456

S

1567

1456

1
2

1567

1456

1
2

RUN

1567

1234

1
2

RUN

Press the [DISP/S] or the [MODE/T] button
(for 1 second or less).

An arrow will be displayed next to the setting value to be changed when tuning
or calibration is implemented.

3 seconds 3 seconds

1-point calibration

Use this function when you cannot move detected objects away from the center of the
detection range.

1

XX-XXXX

1
2

1567

1234

DISP MODE

 When [Out2] mode is set to [Standard] or [Window]

XX-XXXX

1
2

1567

1234

DISP MODE

FAR

ON

N.O.

OFF

ON

N.C.

OFF

4-4. Manual Tuning

NEAR

DISP MODE

S

Out1 1234

Out2 1456

S

Out1 1234

Out2 1456

[Standard]

1

1567

2
F

N
F

1567

1234
1789

[Window]

1234
1789

1...9999

RUNRUN

[Standard]

XX-XXXX

1
2

1567

1234

1
2

1567

1
2

1567

1234

1234

1
2
N

1...9999

1567

1234

N
F

1789

FARNEAR

1
2

N
F

4-5. Switching Out1/Out2

The initial [Out2] mode is [Stability]. "6 Detailed Settings" (page 9)
When [Out2] mode is set to [Standard] or [Window], the setting below could be
manipulated.

 When the detection mode is set to [Window]

7

5 Useful Functions

9999

Input Password

0000

0000

...

1567

1234

XX-XXXX

DISP MODE

1
2

1567

1234

XX-XXXX

DISP MODE

1
2

Press these buttons at the same time for 3 seconds or more.

If necessary, enter the password to release the lock.

Lock Unlock

1567

1234

XX-XXXX

DISP MODE

1
2

Initialize ?

No

Initialize ?

Yes

While pressing the [MODE/T] button, press the [SET]
button five times.

"3 Initial Settings" (page 3)

Use the I/O selection to change what is displayed here. " 3-1. I/O Selection" (page 4).
(1): Output 1 (displayed in gray when OFF)
(2): Output 2 (displayed in gray when OFF)
A: Current output
V: Voltage output
IN: External input (displayed in gray when OFF)

An arrow will be displayed next to the setting value to be changed
when tuning or calibration is implemented.

Current value

Setting value
(the display of which
can be changed)

The indicator will turn grey while the
[DISP /S] button is pressed.

The indicator will turn grey while the
[MODE /T] button is pressed.

1567

1234

XX-XXXX

DISP MODE

1
2

1567

1234

1
2

1567

1234

1789

1
2

P

B

1567

1
2

Simple

Display

S

Bar

Display

S

Peak Bottom

Display

S

Standard

Display

S

1567

MIN

1
2

MAX

Press the [DISP /S] button
(for 3 seconds or more).

Current value

Setting value

Current value

Peak val ue*

Bottom value*

Current value

Bar

Current value

Key Lock

To require a password to release the key lock, see " 6-13. Password" (page 11).

Switching between Display Screens

You can select between four different displays.

 Display screen

1
2

1234

1789

 How to switch the display

Initialization

Initialization resets the product to its factory default settings. After initialization, you will
have to configure the "3 Initial Settings" (page 3).

 Using the shortcut keys to execute the initialization

 Using the setting menu to execute the initialization

On the "Initialize?" screen, select "Yes". "6 Detailed Settings" (page 9)

* When the output changes from ON to OFF, the bottom value is reset to the current

value.
When the output changes from OFF to ON, the peak value is reset to the current
value.
When the analog output [Analog] is selected, pressing [DISP/

S] or [MODE/T] resets

both the bottom value and the peak value to the current value.

8

6 Detailed Settings

1000 ms

N.O.
N.C.

(Stability) *2
(Error) *2

Window

Off-delay
On-delay
One shot

9999 ms

1 ms

...

Off

Standard

Standard
Custom

Custom

Standard
Window
Stability
Error

Off
Off-delay
On-delay
One shot

Channel 4
Channel 3
Channel 2
Channel 1

High
Mid
Low

Laser Off
Tuning
DATUM Preset

Menu

Response Time

25 ms

Output1 Logic

N.O.

Output2 Logic

N.O.

Output2 Mode

Stability

Output1 Mode

Standard

Hysteresis

Standard

Hys.Value

10

Sensitivity

High

Analog Scaling

4 mA = 0

Analog Scaling

20 mA = 5000

Analog Test

Off

Output1 Timer

Off

Output2 Timer

Off

Adv. Settings

Off

End

End

Timer1 Setting

10 ms

100 ms
25 ms
10 ms
1 ms

4567

2345

1
2

*1

Off

Off

Timer2 Setting

10 ms

4567

2345

1

2

4567

2345

1
2

N.O.
N.C.

Off
On

Off
On

Off
On

100%
30%
Display Off

Off
On

On

On

On

RUN

RUN

9999 ms

1 ms

...

9999

0000

No

Yes

...

9999

0

...

20.0 mA

4.0 mA

...

9999

0

...

9999

0

...

Test Value

4.0 mA

Output Hold

Off

Brightness

30%

Interference

Channel1

Password Lock

Off

Enter Password

0000

Initialize?

No

B

B

A

A

C

D

Out1+Out2

B

Input+Out1

C

Out1+Analog

D

Input+Analog

Stability or Error

Stability or Error

Input Function

Laser Off

D

3-1. I/O Selection
( page 4)

6-1. Response Time
( page 10)

6-3. Output 1 Mode
( page 10)

6-4. Output 1 Timer
( page 10)

6-2. Output 2 Logic
( page 10)

6-3. Output 2 Mode
( page 10)

6-4. Output 2 Timer
( page 10)

6-5. Hysteresis
( page 11)

6-14.
Initialization
( page 11)

6-6. Received
Light Sensitivity
( page 11)

6-9. Input
Function
( page 11)

You can complete settings by holding down the

button.

3 seconds

Advanced Settings

6-2. Output 1 Logic
( page 10)

6-13. Password
( page 11)

6-12.
Interference
Prevention
( page 11)

6-11. Screen
Brightness
( page 11)

6-10. Output
Hold
( page 11)

6-7. Analog
Upper Limit
( page 11)

6-7. Analog
Lower Limitt
( page 11)

6-8. Analog
Output Test
( page 11)

The values shown on the display screen are the initial values.

*1 The LR-TB5000CL has the following response times.

2000 ms
200 ms
50 ms
20 ms
2 ms

*2 Only when the I/O selection ( " 3-1. I/O Selection" [page 4]) is [Out1 + Analog]

9

A

ON

OFF

ON

N.O.

N.C.

FAR

NEAR

OFF

ON

OFF

ON

N.O.

N.C.

OFF

ON

OFF

ON

N.O.

N.C.

OFF

ON

OFF

ON

N.O.

N.C.

OFF

Timer OFF

Off Delay

On Delay

One Shot

Timer time

6-1. Response Time

Longer response times lead to more stable detection.

 LR-TB5000/LR-TB5000C

Example) Chart during DATUM mode

XX-XXXX

1234

1567

2

1

DISP MODE

Detecting

distance

[mm]

White Paper (Reflectivity: 90%)

Response Time[ms]

1 10 25 100 1000

1000±7±3±3±3±3

5000 ±42 ±12 ±9 ±5 ±3

Repetition Accuracy [mm] (Typical) (Under stable temperature)

Repetition Accuracy [mm] (Typical) (Under stable temperature)

Detecting

distance

[mm]

Gray Paper (Reflectivity: 18%)

Response Time[ms]

1 10 25 100 1000

1000 ±11 ±4 ±3 ±3 ±3

5000 ±154 ±40 ±29 ±14 ±6

 LR-TB5000CL

Detecting

distance

[mm]

1000±9±6±6±3±3

5000 ±42 ±14 ±10 ±5 ±5

Detecting

distance

[mm]

1000 ±12 ±6 ±4 ±3 ±3

5000 ±159 ±42 ±31 ±15 ±8

Repetition Accuracy [mm] (Typical) (Under stable temperature)

White Paper (Reflectivity: 90%)

Response Time[ms]

2 20 50 200 2000

Repetition Accuracy [mm] (Typical) (Under stable temperature)

Gray Paper (Reflectivity: 18%)

Response Time[ms]

2 20 50 200 2000

NEAR

Distance

mount of
received light
(workpiece
background)

Stability
output
(N.O.)

FAR

OFF

ON

5 cycles

Setting value

Amount of
received light
threshold (fixed)

z When the I/O selection is [Analog]

Output is generated if the amount of light received falls below the threshold (fixed
value) for 5 seconds or more.

 Error [Error]

Output is activated when an error occurs. When the error is cleared, the output is also
automatically reset. For causes of errors, see " Error Display" (page 11).

6-4. Timer

This function can be used to delay the timing with which the sensor output is switched.

• Off delay [Off-delay]

• On delay [On-delay]

• One shot [One shot]

6-2. Output Logic

Select N.O. or N.C. for the output logic. For details, see "4 Detection Mode" (page 5).

6-3. Output Mode

 Standard [Standard]

The output is activated according to the detecting distance. For details, see "4 Detection
Mode" (page 5).

 Window [Window]

The output is activated according to the detecting distance. For details, see " 4-3.
Window Mode" (page 6).

 Stability [Stability]

This function can be used to check whether there has been a decrease in the amount of
light received due to problems such as dirt on the detected surface.

z When the I/O selection is [Out1 + Out2]

Output is activated if the amount of light received falls below the threshold (fixed value)
during the observation period.

Detection Mode Observation Period

DATUM

Distance Detected value < setting value

Window

Negative setting value < detected value

< positive setting value

LOW-side setting value < detected value

< HIGH-side setting value

10

6-5. Hysteresis

FAR

NEAR

ON

OFF

ON

N.O.

N.C.

OFF

Hysteresis

Setting value

B

1000 2000

A

Hysteresis

Detecting
distance

Unit: mm

Response Time (ms) A(mm) B(mm)

25 to 2000 15 20

10, 20 30 40

1, 2 60 80

NEAR

00

ON

N.O.

）

OFF

NEAR

ON

（

N.O.

）

OFF

Display Display

Distance
display

Distance
display

SettingSetting

DistanceDistance

Output Output

Hysteresis is the difference between the value at which the output turns ON and the value
at which the output turns OFF.

• With [Standard], the hysteresis varies depending on the response time and the
detecting distance.

6-11. Screen Brightness

You can set the operation to perform when no button operations are performed for a set
length of time.

Item Description

100% The display brightness is always kept at 100%.

30% (default value)

Display Off After a certain length of time elapses, the display is turned OFF.

After a certain length of time elapses, the display brightness is set to
30%.

• If you use the LR-TB Series for a long period of time, the display brightness will
decrease.

• If you set this to [100%], the display brightness will decrease at a faster rate.

6-12. Interference Prevention

With the LR-TB Series, you can prevent the effect of mutual interference by changing the
laser emission channel. If you are using multiple LR-TB Series units in close proximity to
each other, set each one to have a different laser emission channel.

6-13. Password

If you set this to [ON], you can set a personal identification number that must be entered to
release the " Key Lock" (page 8). You can set the personal identification number to a
value from 0 to 9999.

• With [Custom], you can specify an arbitrary value regardless of the detecting distance.

• For details on the operation differences between the detection modes, see "4
Detection Mode" (page 5).

6-6. Received Light Sensitivity

By lowering the received light sensitivity level, you can reduce the number of times that
malfunctions such as the following occur.

• Detections of dirt and mist between the sensor and the detected object.

• Detections of translucent objects when passing through translucent objects to detect
the target.

You cannot change the received light sensitivity when " 6-1. Response Time" (page 10)
is set to [1ms/10ms]/[2ms/20ms].

6-7. Analog Lower and Upper Limits

For details, see "3-4. Analog Lower and Upper Limits" (page 4).

6-8. Analog Output Test

You can output arbitrary currents and voltages.

6-9. Input Function

For details, see " 3-2. Exter nal Input Selection" (page 4).

6-10. Output Hold

This function holds the display value and the output status that were in use immediately
prior to the LR-TB Series becoming unable to receive light.

 When Output Hold is OFF  When Output Hold is ON

6-14. Initialization

Initialize the sensor settings. You can also use the shortcut keys to execute the
initialization. "Initialization" (page 8)
After initialization, you will have to configure the "3 Initial Settings" (page 3).

7Other

Error Display

Error Display Cause and Remedy

NEAR*

- - - -*

Over Current

Laser Error

EEPROM Error

System Error

* When Output mode is set to [Error], while “Near” or “- - - -” is on display, the output would not

switch.

Output When an Error Occurs

The detected object is not within the detectable range (the detected
object is too close).

Light reflected from the detected object could not be received.

• The amount of light received from the detected object is low.

• The detected object is not within the detectable range of the LR-TB (the
detected object is too far away).

An overcurrent is flowing through the output wire.

• Check whether the output wire is connected correctly.

• Check whether the output wire is in contact with other wires.

A laser diode error has occurred.

• If you cannot fix the problem by restarting the product, the product must
be replaced.

1) Settings have been rewritten more than 1,000,000 times.

• The memory has reached the end of its service life.

2) A recording memory error has occurred.

• If you cannot fix the problem by restarting the product, the product must
be replaced.

An internal system error has occurred.

• If you cannot fix the problem by restarting the product, the product must
be replaced.

Error Display

NEAR ON OFF 3.8 0

- - - - OFF ON 20.5 10

Over Current

Laser Error

EEPROM Error

System Error

*1 When Output mode is set to [Error], despite the setting of N.O. or N.C., LR-T would remain

*2 When Output mode is set to [Error], LR-T would turn ON with N.O. and turn OFF with N.C.

*1

*2

*2

*2

OFF to protect the output circuit.

Output ON or OFF Analog Output

N.O. N.C. 4 to 20 mA

OFF OFF

OFF ON 2 0

The same as during normal operation

OFF ON 2 0

The same as during normal

0 to 10 V

operation

11

WARRANTIES AND DISCLAIMERS

(1) KEYENCE warrants the Products to be free of defects in materials and

workmanship for a period of one (1) year from the date of shipment. If any models
or samples were shown to Buyer, such models or samples were used merely to
illustrate the general type and quality of the Products and not to represent that
the Products would necessarily conform to said models or samples. Any
Products found to be defective must be shipped to KEYENCE with all shipping
costs paid by Buyer or offered to KEYENCE for inspection and examination.
Upon examination by KEYENCE, KEYENCE, at its sole option, will refund the
purchase price of, or repair or replace at no charge any Products found to be
defective. This warranty does not apply to any defects resulting from any action of
Buyer, including but not limited to improper installation, improper interfacing,
improper repair, unauthorized modification, misapplication and mishandling, such
as exposure to excessive current, heat, coldness, moisture, vibration or outdoors
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(2) KEYENCE is pleased to offer suggestions on the use of its various Products.

They are only suggestions, and it is Buyer's responsibility to ascertain the fitness
of the Products for Buyer’s intended use. KEYENCE will not be responsible for
any damages that may result from the use of the Products.

(3) The Products and any samples ("Products/Samples") supplied to Buyer are not to

be used internally in humans, for human transportation, as safety devices or
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(4) OTHER THAN AS STATED HEREIN, THE PRODUCTS/SAMPLES ARE

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CLAIM AGAINST BUYER. In some jurisdictions, some of the foregoing warranty

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12739E 1034-3a 96M12739 Printed in Japan

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