Panasonic EX-31B Installation Manual

INSTRUCTION MANUAL

New-form Beam Sensor

Amplifier Built-in

EX-30 Series

Type

Thru-beam type

NPN output

Item

PNP output

Model No.

Sensing range

Sensing object

EX-31A

EX-31A-PN

EX-31B

EX-31B-PN

500mm

ø2mm or more opaque object

Hysteresis Repeatability

(perpendicular to sensing axis)

Supply voltage

Current consumption

0.05mm or less 0.5mm or less

12 to 24V DC±10% Ripple P-P 10% or less

Emitter: 10mA or less Receiver: 15mA or less

NPN output type NPN open-collector transistor Maximum sink current: 50mA

Applied voltage: 30V DC or less Residual voltage: 1V or less

Output

PNP output type PNP open-collector transistor

Maximum source current: 50mA Applied voltage: 30V DC or less Residual voltage: 1V or less

Output operation

Short-circuit protection

Light ON Dark ON Light ON Dark ON

Incorporated (restored automatically

Response time

Operation indicator

Stability indicator

Orange LED (lights up when the output is ON (

incorporated on the receiver for thru-beam type

Green LED lights up under stable light received condition or stable dark condition, incorporated on the receiver

Sensitivity adjuster

Protection

–

Ambient temperature

Ambient humidity

Emitting element

Material

Cable

Weight

Accessories

Note:

The sensing range is specified for white non-glossy paper (100 100mm) as the object.

25 to +55˚C (No dew condensation or icing allowed

Storage: –30 to +70˚C

35 to 85% RH, Storage: 35 to 85% RH

Red LED (modulated

Enclosure: Die-cast zinc Lens: Polycarbonate (EX-31 ), Acrylic (EX-32 ) Enclosure cover: Polycarbonate

0.1mm2 3-core (thru-beam type sensor emitter: 2-core) cabtyre cable, 2m long

Emitter/Receiver: 20g approx. Nut: 2 Nos.

Toothed washer: 2 Nos.

Diffuse reflective type

EX-32A

EX-32A-PN

50mm (Note

Opaque, translucent or transparent object

15% or less of operation distance

20mA or less

(

between output and 0V

(

at 50mA sink current

0.4V or less (at 16mA sink current

(

between output and +V

(

at 50mA source current

0.4V or less (at 16mA source current

0.5ms or less

Green LED lights up under stable light received condition or stable dark condition

Continuously variable adjuster

)

IP67 (IEC

20g approx.

Nut: 1 No. Toothed washer: 1 No.

EX-32B

EX-32B-PN

)

) )

)

) )

)

Thank you very much for using SUNX sensors. Please read this Instruction Manual carefully and thoroughly for the correct and optimum use of this sensor. Kindly keep this manual in a convenient place for quick reference.

This product is not a safety sensor. Its use is not intended or designed to protect life and prevent body injury or property damage from dangerous parts of machinery. It is a normal object detection sensor.

Make sure to carry out the wiring in the power supply off condition. Take care that wrong wiring will damage the sensor. 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. Extension up to total 50m (thru-beam type: both emitter and receiver) is possible with 0.3mm more, cable. However, in order to reduce noise, make the wiring as short as possible. Make sure that stress is not applied directly to the sensor cable joint. 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. Take care that the sensor is not directly exposed to fluorescent light from a rapid-starter lamp or a high frequency lighting device, as it may affect the sensing performance. Avoid dust, dirt, and steam. Take care that the sensor does not come in direct contact with water, oil, grease, or organic solvents, such as, thinner, etc. 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 in the used power supply, connect a surge absorber to the supply and absorb the surge. 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.

Mount the sensor on a mounting plate 3mm or less thick, using the enclosed nut and toothed washer. When tightening the nut, hold the sensor with hand or a spanner and make sure that the tightening torque is 0.6N Do not tighten the sensor itself with a spanner, etc.

•

m (EX-32 : 1.0N • m) or less.

Mounting plate (3mm or less thick)

, or

Color code

(Brown) +V

Sensor circuitSensor circuit

Internal circuit

The emitter of the thru-beam type sensor does not

Note:

incorporate the output.

Symbols...D

)

(Blue) 0V

Reverse supply polarity protection diode

: Surge absorption zener diode

: NPN output transistor

(Brown) +V

(Blue) 0V

Load

(Black) Output (Note)

50mA max.

Users’ circuit

Color code

50mA max.

(Black) Output (Note)

Load

12 to 24V DC ±10%

Sensitivity adjuster

Step

MAX

Turn the sensitivity adjuster fully

Description

counterclockwise to the minimum sensitivity position.

In the light received condition, turn the

MAX

sensitivity adjuster slowly clockwise and confirm the point where the sensor

enters the ‘Light’ state operation. In the dark condition, turn the sensitivity

adjuster further clockwise until the sensor enters the ‘Light’ state operation and then bring

MAX

it back to confirm point where the sensor just returns to the ‘Dark’ state operation.

The position at the middle of points and is the optimum sensing position.

Optimum position

If the sensor does not enter the ‘Light’ state operation even when the sensitivity adjuster is turned fully clockwise, this extreme position is point .

Note: Turn the sensitivity adjuster slowly. Turning with

excessive strength will damage the adjuster.

Apply the optional slit mask (OS-EX30-10) when

Internal circuit

The emitter of the thru-beam type sensor does not

Note:

incorporate the output.

Symbols...D

Reverse supply polarity protection diode

: Surge absorption zener diode

: PNP output transistor

Users’ circuit

Operation indicator (

Orange)(Note

)

Stability indicator (

Green)(Note

)

detecting small objects or for increasing the accuracy of sensing position. However, the sensing range is reduced when the slit mask is mounted.

Mounting method

Insert the sensor into the mounting plate. Fit the washer and spacers enclosed with the slit mask. Note that the number of spacers to be fitted differs with the mounting plate thickness,

Mounting plate thickness

3mm 0 No.

2mm 1 No.

1mm 2 Nos.

Mounting plate

No. of spacers

as given in the table on

Beam axis

the right. Mount the slit mask. Make sure that the tightening torque is 0.6N.m or less.

Slit mask Spacer Washer

Sensor

Note: Not incorporated on the emitter.

Beam-receiving part

Operation indicator (

)

Orange

Stability indicator (

)

Green

http://www.sunx.co.jp/ SUNX Limited

Head Office

2431-1 Ushiyama-cho, Kasugai-shi, Aichi, 486-0901, Japan

Beam-emitting part

Sensitivity adjuster

Phone: +81-(0)568-33-7211 FAX: +81-(0)568-33-2631

Overseas Sales Dept.

Phone: +81-(0)568-33-7861 FAX: +81-(0)568-33-8591

PRINTED IN JAPAN