Di-soric LAT 61 Manuel utilisateur

Compact Laser Displacement Sensor

LAT 61

USER´S MANUAL

Introduction

㩷

Safety Precautions

This product is used to detect objects, and does not incorporate control functions

for the purpose of maintaining safety including the prevention of accidents.

Do not use this product as a human sensor to protect human bodies.

Use products that conform to the laws, regulations, and international standards,

such as OSHA, ANSI, and IEC standards, for applications protecting human

bodies.

In order to ensure the correct use of the product, read this user manual carefully

before use.

WAR NI NG

Ɣ Incorporate safety measures, such as a double safety mechanism, into the

system if the use of the system is likely to result in injury or serious

consequential loss.

Ɣ Do not use the system in combustion gas atmospheres. Otherwise, the

system may result in explosion.

Ɣ This product was developed and manufactured for use in industrial

environments.

Caution

Ɣ Always observe the specifications including the ratings and ambient

conditions.

Otherwise, the system may result in overheating or generate smoke.

Ɣ Do not disassemble or modify the system. Otherwise, an electric shock may

be received or the system may generate smoke.

Ɣ Do not touch the wires when the system is energized. Otherwise, an electric

shock may be received.

Introduction

㩷

Correct Handling

Pay attention to the following items when installing and using the system.

Installation Environment

 Do not install the system in the following places.

• Places where the ambient temperature, humidity, or the illumination level of the

light receiving surface is in excess of the operating environmental conditions.

( Refer to

“Operating Environment”.)

• Places that causes dew condensation as a result of radical temperature changes.

• Places with corrosive gas or flammable gas.

• Places with excessive dust, iron powder, or salt.

• Places where organic solvents, such as benzine, paint thinner, and alcohol, and

strong alkaline substances, such as ammonia and sodium hydroxide are likely to

adhere to the system.

• Places with strong vibration and shock.

• Places exposed to direct sunlight.

• Places where water, oil, or chemicals are sprayed.

• Places where a heavy load is imposed on the sensor head.

Operating Environment

 Ambient Temperature, Humidity, and Illuminance

Ambient temperature

• Use the system within the range of the specifications ( refer to Chapter 6

“Specifications”).

Sensor head: -10°C to 45°C

• Keep the following storage temperature range in the case of storing the sensor

head.

Sensor head: -20°C to 60°C

• The life of the semiconductor laser depends on the operating ambient temperature.

Take appropriate measures, such as the use of a cooling fan, to drop the ambient

temperature of the sensor head as much as possible if the sensor head is used

close to heat radiating objects.

• The sensor head radiates heat as well. Therefore, be sure to install the sensor head

in places with as good thermal conductivity as possible. Mount the sensor head to

an aluminum or steel plate with a minimum surface area of 200 cm2 if the

Introduction

㩷

ambient temperature is 40°C or higher.

In the case of installing two or more sensor heads in parallel, mount each sensor

head to an aluminum or steel plate with a minimum surface area of 200 cm2 and

make sure that the ambient temperature does not exceed 40°C.

Ambient humidity

• Use the system within a relative humidity (RH) range of 35% to 85%.

Do not use the system in places that may cause dew condensation as a result of

radical temperature changes.

Ambient illuminance of light receiving surface

Make sure that the illumination level of the light receiving surface does not exceed

3,000 lx under incandescent light.

 Power Supply Voltage

Be sure to supply a rated voltage of 21.6 to 26.4 VDC.

 Environment

• The internal circuit may be damaged if an external surge voltage (single-polarity,

full-wave voltage) in excess of 500 V ± 1.2 x 50 µs is imposed. Insert a surge

absorber between power input terminals if the external surge voltage is likely to

exceed 500 V.

• Always keep the emitter and receiver of the sensor head clean. Make sure that the

emitter and receiver are free of substances that refract light, such as water, oil, or

fingerprints, or surface water, or matters that block light, such as dust and dirt.

Clean the emitter and receiver with a soft lint-free cloth or lens cleaning paper.

• Check that the receiver will not receive direct ambient light the same as the laser

light in wavelength, such as sunlight. Mount an appropriate object, such as a light

shield plate, to the sensor head if high accuracy is especially required.

• Do not use the system in places with flammable or corrosive gas or excessive

dust, places where water is sprayed, places exposed to direct sunlight, or places

with strong vibration or shock.

Protective Structure

• The sensor head is of penetration-resistant type, but the connector is not of dust-,

water-, or corrosion-proof construction. Therefore, Do not use the product

underwater or in the rain. Pay attention to the operating environment.

Introduction

㩷

Warm-up Time

In order to ensure the performance of the system, allow a warm-up time of at least

30 minutes after the system is turned ON.

Countermeasures against Noise

• Install the system separated as much as possible from noise generating sources,

such as high-tension lines, high-voltage equipment, power lines, power

equipment, machines generating high-voltage ON/OFF surges, welding machines,

and inverter motors.

• Install the system separated as much as possible from radio equipment incorporating

transmission circuitry, such as amateur radio transmitters.

䊶 Do n ot t ouch t he c onnec tor p arts w hen t he s yste m i s e nerg ize d. K eep i n m ind t hat

the internal circuit may be damaged if an excessive level of static electricity is

imposed on the connector parts.

• Separate the sensor cable from other wires at least 100 mm, and make sure that

the sensor cable is not in parallel with them. Separate the sensor cable from

high-voltage and power circuit lines. Shield the sensor cable with grounded

conduits if it is unavoidable to lay the sensor cable together with high-voltage or

power circuit lines.

• Separate the I/O signal lines at least 100 mm away from power lines and power

supply lines. All signal lines should be connected as short as possible.

• The analog output of the system is adversely influenced by heavy noise in the

power supply. In that case, use a noise filter or noise-cut transformer.

• It is recommended to use shield cables for I/O signal wires and connect the

shields to the frame ground (FG) for countermeasures against noise.

• The analog output is easily affected by external noise. Use the shield cable and

lay it as short as possible.

• Ground the FG at a resistance not exceeding 100 Ω independently. The FG may

be adversely affected if the ground is shared with other equipment.

Introduction

㩷

Power Supply

 Applicable Power Supply

• Select a power supply with a maximum ripple of 0.5 V (peak to peak) and a minimum

current capacity of 0.5 A.

• Be sure to ground the FG terminal in order to prevent an adverse influence of

high-frequency noise if a commercially available switching regulator is used for the

power supply.

• A transformer may be connected to the power supply on the condition that the

transformer is of isolation type. The product or the power supply may be damaged if

an auto transformer is used.

• In order to protect the system from abnormally high voltages from the power supply

line, be sure to use an isolated power supply with a built-in protective circuit.

• In the case of using a power supply that does not incorporate a protective circuit, be

sure to connect the power supply to the system through a protective element, such as a

fuse.

㩷

 Power Supply Sequence for Sensor Head

• Arrange a power supply sequence so that the sensor head will be turned ON

earlier than the I/O power supply.

• Arrange a power supply sequence so that the I/O power supply will be turned ON

earlier than the sensor head.

• Do not turn ON the sensor head again within 10 seconds after the sensor head is

turned OFF.

• The system will be ready to operate approximately 40 to 50 seconds after the

system is turned ON, depending on the contents of settings. No outputs are

determined during startup. Do not output anything during the period.

• An analog voltage of 11 V and an analog current of approximately 21.6 mA will

be output until the system becomes ready to operate.

• Do not turn OFF the system while system settings are being saved. In the worst

case, the sensor head system may be damaged and fail to restart.

Instantaneous Power Failure

If an instantaneous power failure occurs, the system will operate continuously or

go to the initial power-on state, depending on the duration of the power failure. Do

not use the system in environments where instantaneous power failures occur.

Introduction

㩷

CE Compliant Conditions

Make sure that the length of signal and power lines connected to the product is less

than 30 m.

Attach a ferrite core to the head cable as shown below.

Recommended ferrite core: SEIWA ELECTRIC MFG. Co., Ltd.E04SR200935AB

or equivalent one

㪊㪇㫄㫄એ

30 mm max.

Introduction

㩷

Laser Product Handling

JIS/IEC

 Laser Diode Sensor

The laser is classified in accordance with JIS (JIS C 6802: 2005) and IEC (IEC

60825-1: 2007) standards.

㩷

Wavelength 㪍㪌㪌㩷㫅㫄㩷

Max. output 㪈㩷㫄㪮㩷

Class㩷㪉㩷

 Precautions

1) Be careful not to stare at the laser beam directly or the reflected light of the

mirror surface.

2) Install the sensor so the laser beam will be located higher or lower than eye level

in order not to watch the beam directly while the system is in operation.

3) Contact the nearest office of di-soric GmbH & Co. KG

if system breaks down. The product is not provided with a function to stop laser

beam radiation automatically when the sensor head is disassembled. Do not

disassemble the sensor head, or otherwise you may be exposed to the laser beam.

4) Do not use the system in methods other than that specified in this manual.

Yo u m ay b e e xp osed t o h az ardou s l as er r adi atio n i f t he s y stem i s

controlled or adjusted in procedures not specified in this manual.

5) Read the descriptions of the warning label carefully before use.

The warning label (English) is affixed to the side of the sensor head. Warning

labels in Japanese, Korean, and Chinese are enclosed. Use them as needed.

 Warning label

ᴾ

㩷

Introduction

㩷

FDA㩷

 Export to US

The laser product mounted on equipment and exported to the United States is

subjected to the regulation of the Food and Drug Administration (FDA). In order to

prevent the users’ injury caused by laser products, the FDA specifies PART 1040

(Performance Standards for Light-Emitting Products). The FDA classifies laser

products according to the degree of risk and provides safety measures for

respective classes. ( refer to

“FDA Standards”.)

Ɣ Certification and Identification Label

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