Ultra-compact Photoelectric Sensor

302

FIBER

SENSORS

LASER

SENSORS

PHOTO-

ELECTRIC

SENSORS

MICRO

PHOTO-

ELECTRIC

SENSORS

AREA

SENSORS

SAFETY LIGHT

CURTAINS /

SAFETY

COMPONENTS

PRESSURE /

FLOW

SENSORS

INDUCTIVE

PROXIMITY

SENSORS

PARTICULAR

USE

SENSORS

SENSOR

OPTIONS

SIMPLE

WIRE-SAVING

UNITS

WIRE-SAVING

SYSTEMS

MEASURE-

MENT

SENSORS

STATIC

CONTROL

DEVICES

LASER

MARKERS

PLC

HUMAN

MACHINE

INTERFACES

ENERGY

MANAGEMENT

SOLUTIONS

FA

COMPONENTS

MACHINE

VISION

SYSTEMS

UV

CURING

SYSTEMS

Selection

Guide

Amplifier

Built-in

Power Supply

Built-in

Amplifier-

separated

EX-Z

CX-400

CY-100

EX-10

EX-20

EX-30

EX-40

CX-440

EQ-30

EQ-500

MQ-W

RX-LS200

RX

RT-610

PRECAUTIONS FOR PROPER USE

Refer to p.1552~ for general precautions.

Stability indicator

• The stability indicator (green) lights up when the incident

light intensity has sufficient margin with respect to the

operation level.

If the incident light intensity level is such that the stability

indicator lights up, stable sensing can be done without

the light received operation and the light interrupted

operation being affected by a change in ambient

temperature or supply voltage.

M3 screws

Mounting

• Mount using M3 screws. The tightening torque should be

0.5 N·m or less.

Front sensing

Side sensing

M3 pan head screws (Note)

M3 screws

Note: When mounting the front sensing type sensor, use M3 pan head

screws without washers, etc.

• When mounting the front sensing type from the backside,

fit the mounting spacer (

MS-EX20-FS) and fix with screws.

1

Fit the mounting

spacer on the sensor.

2

Align the mounting holes of

the mounting spacer and the

sensor and mount with M3

screws. The tightening torque

should be 0.5 N·m or less.

Mounting

spacer (Optional)

Sensitivity adjustment (side sensing type only)

Step Sensitivity adjuster

Description

1

MAX

Turn the sensitivity adjuster fully counterclockwise to

the minimum sensitivity position (• mark).

2

MAX

A

In the light received condition, turn the sensitivity

where the sensor enters the “Light” state operation.

3

MAX

A

B

In the dark condition, turn the sensitivity adjuster further

clockwise until the sensor enters the “Light” state operation

just returns to the “Dark” state operation.

4

MAX

A

B

optimum sensing position.

Notes: 1) Use the attached adjusting screwdriver to turn the adjuster slowly.

Turning with excessive strength will damage the adjuster.

2) In case of using

take care that the sensitivity adjustment range becomes extremely narrow.

Operation mode switch (EX-23□ only)

Switch

position

Description

L

D

Light-ON mode is obtained when the operation mode switch

(located on the receiver) is turned fully clockwise (L side).

L

D

Dark-ON mode is obtained when the operation mode switch

(located on the receiver) is turned fully counterclockwise (D side).

Note: Operation mode switch should be turned fully till it stops.

Mounting method

If the sensor does not enter the “Light” state operation even when the

Operation of stability indicator

Output operation

Incident

light

margin

Light

interruption

margin

Output

operation

level

0

100

0

Setting distance

15 % approx.

25 % approx.

Glossy object sensing (EX-29□)

• Please take care of the following points when detecting

materials having a gloss.

L

Make L sufficiently long

Sensor

10 to 30 °

Glossy surface

Sensing object

Reflector

Wiring

• Excess bending of the cable or stress applied to the

cable may disconnect the internal lead wire.

Others

• Do not use during the initial transient time (50 ms) after

the power supply is switched on.

• If sensors are mounted close together and the ambient

temperature is near the maximum rated value, provide

for enough heat radiation / ventilation.

• If a reflective object is present in the background, the

sensing of

EX-28□ may be affected. When setting the

sensor, make sure to confirm that the reflective object

has no effect. In case the reflective object affects the

sensing, take measures such as removing the reflective

object or coloring it in black, etc.

• Never use this product as a sensing device

for personnel protection.

• In case of using sensing 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.