KEYENCE LR-TB2000 User Manual

96M12738

All-Purpose Laser Sensor

LR-TB2000 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
	WARNING
			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

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.
	WARNING
			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
	NOTICE		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.

WARNING	- 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			LR-TB2000		LR-TB2000CL
			LR-TB2000C
Wavelength			660 nm
Pulse width			4.3 ns
FDA(CDRH)		Laser class*	Class 2 laser product		Class 1 laser product
Part1040.10		Output	1.0 mW		390 μW
JIS C 6802/		Laser class	Class 2 laser product		Class 1 laser product
IEC 60825-1		Output	1.0 mW		390 μW

*The laser classification for FDA (CDRH) is implemented based on IEC60825-1 in accordance with the requirements of Laser Notice No.50.

Laser warning and explanation labels

-XXXX XX 15671234

Laser warning and

explanation label

Laser emission point

zLaser warning and explanation labels

•Attached to the cable

Class 2 (English)

Class 1

•Included with the product

Class 2 (included with the product in each language)

*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 UL61010-1

• 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 EMS : EN60947-5-2

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.

1

Package Contents

•Main unit

•Instruction manual

•Laser warning and explanation labels (LR-TB2000/TB2000C only)

Specifications

		Cable	LR-TB2000			-
Model		Cable with	LR-TB2000C			LR-TB2000CL
		connector M12
Detectable distance*1					60 to 2000 mm
Spot diameter					Approx. 4 mm
			1 ms/10 ms/25 ms/			2 ms/20 ms/50 ms/
Response time			100 ms/1000 ms			200 ms/2000 ms
			selectable			selectable
		Type			Red laser (660 nm)
Light source			Class 2 laser product			Class 1 laser product
		Laser class	IEC60825-1,FDA(CDRH)			IEC60825-1,FDA(CDRH)
			Part1040.10*2			Part1040.10*2
Mutual interference prevention			4 units (when using the interference prevention function)
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					45 mA or less (without load)*3
			NPN open collector/PNP open collector selectable
		Control output			30 VDC or less, 50 mA or less,
			residual voltage: 2 V or less, N.O./N.C. selectable
					Transmission OFF / Tuning /
I/O*4*5			Reference surface update selectable
			Short-circuit current: 1 mA or less for both NPN and PNP
		External input	For the applied voltage, see the wiring diagrams
			(		page 2 in the instruction manual).
			For the input times, see the time charts
			(		page 3 in the instruction manual).
			Protection against reverse power connection,
Protection circuit			power supply surges, output overcurrent, output surge,
					and reverse output connection
		Enclosure rating			IP65/IP67 (IEC60529)
		Ambient light	Incandescent lamp/Sunlight: 100000 lux or less
		Ambient			-20 to +55°C (no freezing)
Environmental		temperature
resistance		Ambient humidity			35 to 85%RH (no condensation)
		Shock resistance	1000m/s2 in X, Y, Z axis directions respectively 6 times
		Vibration resistance	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
			and buttons: PES, Lens cover and display: PMMA
Material			(scratch-resistant coating specifications),
					Cable bushing: PBT, Cable: PVC,
			M12 connector (only for the cable with connector M12 type):
					TPE, PBT, Nickel-plated brass
Weight			Cable type: Approx. 125 g (Including cable)
			Cable with connector M12 type: Approx. 85 g

*1 The range for displayable distance is from 50 to 2200.

*2 The laser classification for FDA (CDRH) is implemented based on IEC60825-1 in accordance with the requirements of Laser Notice No.50.

*3 145mA or less (with load)

*4 You can select the I/O from the following combinations. Control output × 2, control output + external input

(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.

Part Functions

Indicator						[SET] Button
Output 1	ON : Orange*					The operation of this button varies
Output 1	OFF : Green*					depending on the detection mode
Error	: Flashing red					(		page 4).
* The indicator flashes when two conditions below						Example: 2-point calibration
are met;						1.		Press this button with no workpiece
• Stability output turns ON (				page 9).				present.
• Output 1 turns OFF when		output logic is N.O. or				2.		Press this button with a workpiece
turns ON when output logic is N.C.								present.

	XX-XXXX
1	1567
2
	1234
DISP	MODE

[DISP/S] Button

[MODE/T] Button

Pressed for 1 second or less:

Pressed for 1 second or less:

Changes the setting value (

page 6)

Changes the setting value (

page 6)

Held for 3 seconds or more:

Held for 3 seconds or more:

Switches to the display screen (

page

Switches to the setting screen (

page

7)

8)

For a more detailed explanation, see "Switching between Display Screens" (page 7).

2 Installation and Wiring

Installation

•Tightening torque for the mounting holes: 0.63 N·m (M3 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.

Load (input device)

Out1+Out2

z NPN

z PNP

1, brown

20 ... 30 V

1, brown

20 ... 30 V

4, black

4, black

2, white

2, white

3, blue

0 V

3, blue

0 V

	Input+Out1
z	NPN
	1, brown	20 ... 30 V
	4, black
	2, white
	3, blue	0 V

z	PNP
	1, brown	20 ... 30 V
	4, black
	2, white
	3, blue	0 V

2

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

mm

Start Config.

inch feet

3-1. I/O Selection			Select I/O
(	page 3)		Out1+Out2		Out1+Out2
					Input+Out1
		Out1+Out2		Input+Out1
	3-2. External Input				Select Input	Laser Off
	Selection				Laser Off	Tuning
	(	page 3)				DATUM Preset
3-3. NPN/PNP			Select Output
Selection
			NPN		NPN
(		page 3)
					PNP
			End Config.

1

2 1234 RUN

500

•After you have finished configuring the initial settings, you will not be able to reconfigure the unit, I/O, or NPN/PNP selection. To change any of these settings, you will have to initialize the product. "Initialization" (page 7).

3-1. I/O Selection

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

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 8).

3-2. External Input Selection

Transmission OFF [Laser Off]

The laser beam transmission is stopped.

ON

Input

OFF

Transmission	OFF	Transmission
	< 5 ms	< 50 ms

External Calibration [Tuning]

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

ON

Input

OFF

> 60 ms

> 60 ms

Reference surface update [DATUM Preset]

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

ON

Input

OFF

> 5 ms

Updated reference surface

< 60 ms

Updated output

Response

time

3-3. NPN/PNP Selection

You can select between NPN outputs or PNP outputs. For details, see "Wiring" (page 2).

3

4 Detection Mode

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

	Output Mode (	page 9)			Detection Mode
	Standard (default value) [Standard]		4-1. DATUM mode (FGS)
			4-2. Distance mode (BGS)
	Window [Window]		4-3. Window mode
	Stability [Stability]		(		page 9)
	Error [Error]		(		page 9)

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.

Reference surface

-A 0 A

	XX-XXXX
1	1567
2
	1234
DISP	MODE

A: Setting value

ON

N.O.

OFF

ON

N.C.

OFF

Hys.

Hys. Hys: Hysteresis (

page 10)

Setting

•Set the output mode to [Standard], which is the default mode. "6 Detailed Settings" (page 8)

•For details on setting output 2, see " 4-5. Switching Out1/Out2" (page 6).

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

Reference surface

1

	XX-XXXX
1	1567
2
	1234
DISP	MODE

Press the set button for 1 second or less.

2

	XX-XXXX
1	1567
2
	1234
DISP	MODE

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

Completion

-A A

N.O. ON

OFF

N.C. ON

OFF

4-2. Distance Mode (BGS)

Operation

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

2000		A	0

	XX-XXXX
1	1567
2
	1234
DISP	MODE

A: Setting value

ON

N.O.

OFF

ON

N.C.

OFF

Hys. Hys: Hysteresis ( page 10)

Setting

•Set the detection mode to [Standard], which is the default value. "6 Detailed Settings" (page 8)

•For details on setting output 2, see " 4-5. Switching Out1/Out2" (page 6)

z 2-point calibration

1

	XX-XXXX
1	1567
2
	1234
DISP	MODE

Press the set button for 1 second or less.

2

	XX-XXXX
1	1567
2
	1234
DISP	MODE

Press the set button for 1 second or less.

Completion

Setting value

	XX-XXXX
1	1567
2
	1234
DISP	MODE

N.O. ON

OFF

N.C. ON

OFF

4