KEYENCE LR-ZB250ANAP User Manual

96M12305

Self-contained

CMOS Laser Sensor

LR-ZB250AN/ZB250AP

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.

	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.

Safety Information for LR-ZB 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 disassemble this product. Laser emission from this product
			is not automatically stopped when it is disassembled.
			• Use with an over current protection device which is rated 30 V or
			more and not more than 1 A.

Safety Precautions on Laser Product

•This product employs a semiconductor laser for the light source.

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

WARNING 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.

• Do not stare into the beam.

		Wavelength/Output	660 nm/145 μW
		FDA(CDRH) Part1040.10 *	Class 1 laser product
		IEC 60825-1	Class 1 laser product
	*	The laser classification for FDA (CDRH) is implemented based on IEC60825-1 in
		accordance with the requirements of Laser Notice No.50.
	Certification and
		Identification Label	Certification and
	•	When using this product in the
			Identification Label
		U.S. affix the Certification and
		Identification Label included in
		the package of this product as
		shown on the right.

(Affix this label in a location that is not splashed with oils or chemicals.)

Consignes de sécurité relatives au Laser

L’utilisation des commandes ou réglages ou l’exécution des

AVERTISSEMENT procédures autres que celles spécifiées dans les présentes exigences peuvent être la cause d’une exposition à un rayonnement dangereux.

Precautions on Regulations and Standards

UL Certification

This product is an UL/C-UL Listed product.

• UL File No.: E301717, Category: NRKH/NRKH7, Enclosure Type 1 ( UL50 )

Be sure to consider the following specifications when using this product as a UL/CUL Listed Product.

•Use a power supply with Class 2 output defined in NFPA70 (NEC: National Electrical Code).

•Power supply, external input and control output circuits shall be connected to a single Class 2 source 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 European Union.

z EMC Directive (2004/108/EC)

• Applicable standard

EMI: 60947-5-2, Class A, EMS: 60947-5-2

These specifications do not give any guarantee that the end-product with this product incorporated complies with the essential requirements of EMC Directive. The manufacturer of the end-product is solely responsible for the compliance on the endproduct itself according to EMC Directive.

Specifications

	Type		Distance setting
	Appearance		Rectangular
	Model	NPN	LR-ZB250AN
		PNP	LR-ZB250AP
	Detectable distance		35 to 250 mm (215 to 0)*1
	Standard detection deviation		35 to 180 mm : 9 mm
			180 to 250 mm : 25 mm
	Display resolution*2		1 to 3 (1 to 3 mm)
	Spot diameter		2.4 X 1.2 mm at 250 mm
	Response time		1.5 ms / 10 ms / 50 ms selectable
	Connection		2 m cable
	Light source	Type	Red laser (660 nm)
		Laser class	(IEC60825-1, FDA (CDRH) Part1040.10*3)
			Class 1 laser product
	Function	Indicator	3-digit 7-segment display (red),
			output indicator (yellow),
			DATUM indicator (orange), 1 spot indicator (green)
		Timer	OFF/ON delay/OFF delay/One-shot
		Power voltage	10 to 30 VDC, including 10% ripple (P-P), Class 2 or LPS
		Power consumption	450 mW or less (18 mA or less at 24 V, 34 mA or less at 12V)
			LR-ZB250AN: NPN Open collector
	Specifications	Protection circuit	LR-ZB250AP: PNP Open collector
			Applied voltage 30 VDC or less,
		Control output
			Control current 100 mA or less,
			Residual voltage 1.2 V or less at 10 mA or less,
			2 V or less at 10 to 100 mA
			Protection against reverse power connection, output overcurrent,
			output surge, reverse output connection
		Output operation	Light-ON / Dark-ON selectable
		External input	Short-circuit current NPN: 1 mA or less/PNP: 2 mA or less
			For input time, refer to the time chart. (Instruction manual P3)
		Enclosure rating	IP68 (IEC60529)/IP69K (DIN40050-9)/
			4X, 6P, 13 (NEMA250)
	resistance
		Ambient light*4	Incandescent lamp: 2000 lx or less
			Sunlight: 4000 lx or less
		Ambient temperature	-10 to +50°C (No freezing)
	Environmental	Storage temperature	-25 to +75°C
		Insulating resistance	20 MΩ or more (500 VDC)
		Ambient humidity	35 to 85%RH (No condensation)
		Shock resistance	1000 m/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
		Withstand voltage	1000 VAC 50/60 Hz 1 min
	Material		Case: SUS316L, Display: PES,
			Lens cover: PMMA with scratch-resistant coating,
			Packing/Connector ring: FKM
	Weight		Approx. 110 g (Including cable)

*1 Display reading used as a guide for the detecting distance. When the setting value is tuned, the readout shifts. When the value exceeds “-99”, “-FF” is displayed.

*2 The display resolution is “1” in “I-DATUM mode”.

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

*4 When the response time is 10 ms

I/O Circuit Diagram
LR-ZB250AN
		Brown	10 to 30 VDC
circuitmain	Overcurrent circuitprotection
		Load
		Black
Sensor	3 VDC
		White
		Blue	PLC, etc.
			0 V
LR-ZB250AP

		Brown	10 to 30 VDC
main circuit	Overcurrent protection circuit	Black
Sensor			Load
		White
		Blue	0 V

1	LR-ZB250AN/P_IM_E

Basic Operation

Part names and functions		Package contents
Calibration		• Sensor	• Certification and
• UP	• DOWN		Identification Label
• L.ON/D.ON	• MODE

DTM: This lights up when datum
calibration is performed.	• Instruction Manual
1 spot: This turns off when no light enters
or multiple reflections occurs.

Installation

Tightening Torque: 0.6 Nm or less Direction of installation

	OK NG
25.4 mm	M3

Sensitivity adjustment

Wiring

Brown: 10 to 30 V

White: IN

Blue: 0 V

Black: OUT

Output configuration (L.ON ↔ D.ON)

1		(Detection	Operation
		Status)
	> 3s
2
	L.ON	D.ON	Output at the time	ON
			of L.ON	OFF
		3s	Output at the time	ON
			of D.ON	OFF
		(Detection Status)

zBasic setting (high accuracy) (2-point calibration, background suppression - BGS)

zWhen an object other than the background is to be detected (Datum calibration, foreground suppression - FGS)

z When an object located nearer	z Moving target calibration
than the background is to be	(Full auto calibration,
detected (Maximum sensitivity	background suppression - BGS)
calibration, background
suppression - BGS)

1	1	Press briefly	1
Press briefly				Press and
		< 1s
< 1s				hold
				> 3s
			Release the button when [ ] flashes
2	2	Press and
Press again		hold
< 1s
		> 3s
			OK
	Release the button when [ ] flashes
When the difference	DTM	When the 1 spot	Completed
is too small		indicator light is off
OK or NG	OK	or NG
				Setting value
Completed	Completed
Setting value		Setting value A
		Setting value -A

1

Press and hold

> 3s

Let the detected object pass with the button pressed until [ ] flashes.

OK

Completed

Setting

value

*This function cannot be used when the background is not within

the detecting area.

z Manual adjustment

1		(Run Mode)	2		-99 to	999
	Press briefly				Adjust
	< 1s				sensitivity		3s

Completed

	(Run Mode)

LR-ZB250AN/P_IM_E

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