Panasonic EX-31A Manuale utente

2013.03 panasonic.net/id/pidsx/global

Amplifier Built-in Type Threaded

Miniature Photoelectric Sensor

EX-30 Series

USER’S MANUAL

WUME-EX30-3

Contents

1. Cautions··························································································3

2. Part Description ················································································4

3. Mounting ·························································································5

3-1 Mounting the sensor ··············································································· 5

3-2 Installation interval ················································································· 6

4. I/O Circuit Diagram ············································································8

5. Adjustment·······················································································9

5-1 Beam alignment (Thru-beam type EX-31□ / EX-33□)····································· 9

5-2

Sensitivity adjustment (Thru-beam type EX-33□, Diffuse reective type EX-32□)

··10

6. Stability Indicator············································································· 12

7. Option··························································································· 13

7-1 Beam Slit Mask (Thru-beam type EX-31□ / EX-33□)·····································13

8. Specications ················································································· 14

9. Dimensions ···················································································· 15

1. Cautions

WARNING

● Never use this product as a sensing device for personnel protection.

● In case of using devices for personnel protection, use products which meet laws and

standards, such as OSHA, ANSI or IEC etc., for personnel protection applicable in

each region or country.

● This product has been developed / produced for industrial use only.

●The thin cable 0.1mm2 is used for this product. Thus, take care that if the cable is pulled

with excessive force, it may cause cable break.

● Extension up to total 50m (emitter and receiver each of thru-beam type) is possible with

a 0.3mm2, or more of conductor cross-section area cable. However, in order to reduce

noise, make the wiring as short as possible.

●Make sure that stress by forcible bend or pulling is not applied directly to the sensor

cable joint.

● Make sure to carry out wiring in the power supply OFF condition.

● Take care that wrong wiring will damage the sensor.

● Do not run the wires together with high-voltage lines or power lines or put them in the

same raceway. This can cause malfunction due to induction.

● Verify that the supply voltage variation is within the rating.

●If power is supplied from a commercial switching regulator, ensure that the frame ground

(F.G.) terminal of the power supply is connected to an actual ground.

● In case noise generating equipment (switching regulator, inverter motor, etc.) is used in

the vicinity of this product, connect the frame ground (F.G.) terminal of the equipment to

an actual ground.

●Do not use during the initial transient time (50ms) after the power supply is switched

ON.

●Make sure to use an isolation transformer for the DC power supply. If an auto-transformer

(single winding transformer) is used, this product or the power supply may get damaged.

●In case a surge is generated from power supply, take countermeasures such as con-

necting a surge absorber to the origin of the surge.

● Take care that the sensor is not directly exposed to uorescent lamp from a rapid-starter

lamp, a high frequency lighting device or sunlight etc., as it may affect the sensing per-

formance.

● This sensor is suitable for indoor use only.

●Do not use this sensor in places having excessive vapor, dust, etc., or where it may

come in contact with corrosive gas, etc.

● Take care that the product does not come in contact with oil, grease, organic solvents

such as thinner, etc., strong acid or alkaline.

● In case of using the sensor at a place where static electricity is generated, use a metal

mounting plate. Also, ensure to ground the mounting plate.

2. Part Description

Thru-beam type EX-31□

Thru-beam type EX-33□

Diffuse reective EX-32□

Beam axis

Operation indicator

(Orange)

Output ON: lights up

Stability indicator

(Green)

Stable light re-

ceived condition

or stable dark

condition: light up

Operation mode

switch Operation Description

Light-ON

The operation mode becomes Light-ON

when the operation mode switch turned

clockwise (L side) until it stops.

Dark-ON

The operation mode becomes Dark-ON

when the operation mode switch turned

counter-clockwise (D side) until it stops

Note: Use the flathead screwdriver (please arrange separately) to turn the

operation mode switch slowly. Turning with excessive strength will

cause damage to the operation mode switch.

Sensitivity adjuster

Sensing range becomes

longer when turned

clockwise

Operation mode

switch

Beam axis

Operation indicator

(Orange)

Output ON: Lights up

Stability indicator

(Green)

Stable light re-

ceived condition

or stable dark con-

dition: lights up

Beam-receiving part

Beam-

emitting

part

Operation indicator

(Orange)

Output ON: Lights up

Stability indicator

(Green)

Stable light

received condi-

tion or stable dark

condition: Lights

Sensitivity adjuster

Sensing range becomes

longer when turned

clockwise

3. Mounting

3-1 Mounting the sensor

●Mount the sensor on a mounting plate 3mm or less thick and use the enclosed nut and

toothed lock washer for mounting.

● When the nut is tightened, hold the the sensor with hand or a spanner etc. and the tight-

ening torque should be 0.6N·m or less. (diffuse reective type EX-32□: 1N·m or less)

Do not tighten the sensor itself.

Spanner

Mounting plate

(Thick: 3mm or less)

3-2 Installation interval

● This product does not incorporate auto interference prevention function. In case aligning

2 of this sensors closely, follow diagrams below. (typical)

●Find out the operating point ℓ1 on the parallel deviation diagram for the setting distance L.

Separate sensors by 2 × ℓ or more.

In case using at sensing distance (L1) 500mm, the op-

eration point (ℓ1) is approx. 50.3mm according to left

diagram.

The installation interval is

Approx. 50.3mm × 2 = approx. 100.6mm

Thus, install EX-31□ to approx. 100.6mm or more away.

In case using at sensing distance (L2) 800mm, the op-

eration point (ℓ2) is approx. 60.2mm according to left

diagram.

The installation interval is

Approx. 60.2mm × 2 = approx. 120.4mm

Thus, install EX-33□ to approx. 120.4mm or more away.

In case using at sensing distance (L3) 50mm, the op-

eration point (ℓ3) is approx. 9.1mm according to left

diagram.

The installation interval is

Approx. 9.1mm × 2 = approx. 18.2mm

Thus, install EX-32□ to approx.

18.2

mm or more away.

Parallel deviation diagram (typical) of Thru-beam type EX-31□

100

(ℓ1)

50 0 50 100

800

(L1)

600

400

200

100

(ℓ2)

50 0 50 100

(L2)

1,000

500

(ℓ3)

5 0 5 10

(L3)

Sensing eld diagram (typical) Diffuse reective type EX-32□

Setting distance L (mm)

CenterLeft Right

Operating point ℓ (mm)

Parallel deviation diagram (typical) of Thru-beam type EX-33□

Setting distance L (mm)

CenterLeft Right

Operating point ℓ (mm)

Setting distance L (mm)

Operating point ℓ (mm)

CenterLeft Right

Thru-beam type EX-31□ / EX-33□

Diffuse reective type EX-32□

EX-31□: Approx. 100.6mm or more

EX-33□: Approx. 120.4mm or more

EX-31□: 500mm

EX-33□: 800mm

EX-31□: Approx. 100.6mm or more

EX-33□ Approx.120.4mm or more

Approx. 18.2mm or more

50mm

Approx. 18.2mm or more

4. I/O Circuit Diagram

NPN output type and PNP output type: Emitter of thru-beam type EX-31□ / EX-33□

NPN output type: Receiver of Thru-beam type EX-31□ / EX-33□, Diffuse reective type EX-32□

PNP output type:

Receiver of Thru-beam type

EX-31□-PN / EX-33□-PN,

Diffuse reective

type

EX-32□-PN

12 to 24V DC

±10%

Color code

(Brown) +V

Main circuit

(Blue) 0V

Users’ circuitInternal circuit

(Black) Output

Load

50mA max.

12 to 24V DC

±10%

Main circuit

Color code

(Brown) +V

(Blue) 0V

Users’ circuitInternal circuit

Load

12 to 24V DC

±10%

(Black) Output

50mA max.

Main circuit

Color code

(Brown) +V

(Blue) 0V

Users’ circuitInternal circuit

5. Adjustment

5-1 Beam alignment (Thru-beam type EX-31□ / EX-33□)

Thru-beam type EX-31□

1. Place the emitter and the receiver face to face along

a straight line, move the emitter in the up, down, left

and right directions, in order to determine the range

of the light received condition with the help of the

operation indicator (orange). Then, set the emitter at

the center of this range.

2. Similarly, adjust for up, down, left and right angular

movement of the emitter.

3. Further, perform the angular adjustment for the

receiver also.

4. Check that the stability indicator (green) lights up.

Thru-beam type EX-33□

1. Set the operation mode switch to the L side (Light-

ON mode position).

2. Place the emitter and the receiver face to face along

a straight line, move the emitter in the up, down, left

and right directions, in order to determine the range

of the light received condition with the help of the

operation indicator (orange). Then, set the emitter at

the center of this range.

3. Similarly, adjust for up, down, left and right angular

movement of the emitter.

4. Further, perform the angular adjustment for the

receiver also.

5. Check that the stability indicator (green) lights up.

6. Choose the operation mode, as per your require-

ment, with the operation mode switch.

Sensing object

Receiver

Emitter

Operation

indicator

(Orange)

Stability

indicator

(Green)

Receiver

Emitter

Sensing object

Receiver

Emitter

Operation

indicator

(Orange)

Stability

indicator

(Green)

Receiver

Emitter

5-2 Sensitivity adjustment

(Thru-beam type EX-33□, Diffuse reective type EX-32□)

Thru-beam type EX-33□

●When using EX-33□, turn the sensitivity adjuster fully clockwise to the MAX. position.

However, if the beam penetrates a sensing object, adjust the sensitivity as follows.

Step

1. Turn the sensitivity adjuster fully counterclockwise to the

minimum sensitivity position.

2. In the light received condition, turn the sensitivity adjust-

er slowly clockwise and confirm the point A where the

sensor enters the “Light” state operation.

3. In the dark condition, turn the sensitivity adjuster further

clockwise until the sensor enters the “Light” state opera-

tion and then bring it back to conrm point B where the

sensor just returns to the “Dark” state operation.

4. The position at the middle of points Aand Bis the opti-

mum sensing position.

Note: Use the flathead screwdriver (purchase separately) to turn the adjuster slowly. Turning with excessive

strength will cause damage to the adjuster.

Sensitivity

adjuster

Optimum

position

Operation

indicator

(Orange)

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