IFM Efector 200 O5PG Manuale utente

Operating instructions

Retro-reflective sensor

O5PG

704156 / 00 08 / 2007

Contents

Functions and features�� 3

Installation �� 3

Operating and display elements�� 3

Electrical connection�� 4

Set-up�� 4

Sensitivity setting (1-point teach)�� 5

a) Output switched ON when object detected �� 5

Sensitivity setting unsuccessful:�� 5

b) Output switched OFF when object detected �� 5

Sensitivity setting (2-point teach)�� 6

a) Output switched ON when object detected �� 6

Sensitivity setting unsuccessful:�� 6

b) Output switched OFF when object detected �� 6

Electronic lock �� 7

Operation�� 7

Switch point compensation�� 7

Maintenance�� 7

Functions and features

In conjunction with a prismatic reflector or reflective tape the retro-reflective sen-

sor detects transparent objects and materials without contact and indicates their

presence by a switched signal�

Range (r): see type label

(Value refers to prismatic reflector 50 x 50 mm, E20722)�

Installation

Operating and

display elements

1: LEDs

2: OUTon pushbutton

3: OUTo󰀨 pushbutton

Fit the prismatic reflector or the reflective tape behind the target object�

Align the retro-reflective sensor to the reflector or tape and fix it by means of a

mounting fixture� When selecting the prismatic reflector ensure that the surface

area is greater than the light spot�

Maximum range only with accurate alignment�

Optimum excess gain is reached if the excess gain graph on the ifm homepage is

adhered to:

→ “Data sheet direct” > “Additional data”

Electrical connection

Disconnect the power supply� Connect the unit�

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1: L+

2: function check output

3: L-

4: switching output

5: not connected

On power up, the unit recognises automatically if the switching output is con-

nected to L- (= PNP) or to L+ (= NPN)� The polarity of the function check output is

set according to the polarity of the switching output�

Both outputs must be connected with the same polarity:

PNP or NPN!

Set-up

The retro-reflective sensor is set to min� sensitivity and must necessarily be set to

the original application using one of the methods described below (1-point teach

or 2-point teach)� Otherwise the factory setting will not result in an output function�

Sensitivity setting (1-point teach)

Useful if the object is highly transparent or with thin film� However, excess gain is

less than using the 2-point teach�

a) Output switched ON when object detected

►Remove object

►Press [OUToff] for 2 s�

>Yellow LED flashes

►Release pushbutton

>Sensitivity measurement carried out (1 s)

>Yellow LED flash rate doubles

►Press and release [OUToff]

>Sensitivity measurement carried out (1 s)

>Yellow LED out� Programming complete�

Sensitivity setting unsuccessful:

>The yellow LED flashes fast, 8Hz� Cause:

• Signal from prismatic reflector unstable (e�g� in case of vibration)

• Max� setting time 15 min� exceeded

>Unit ignores setting attempt

b) Output switched OFF when object detected

Proceed as above, but:

►Each time press [OUTon]�

>Yellow LED on�

Sensitivity setting (2-point teach)

Useful when the object has high contrast as compared to the reflector or light and

dark objects need to be differentiated� This results in a higher excess gain�

a) Output switched ON when object detected

►Position object

►Press [OUTon] for 2 s

>Yellow LED flashes

►Release button

>Sensitivity measurement carried out (1 s)

>Yellow LED flash rate doubles

►Remove object

►Press and release [OUToff]

>Sensitivity measurement carried out (1 s)

>Yellow LED out� Programming complete�

Sensitivity setting unsuccessful:

>The yellow LED flashes fast, 8 Hz� Cause:

• Insufficient difference in measurements

• Max� setting time 15 min� exceeded

>Unit ignores setting attempt

b) Output switched OFF when object detected

Proceed as above, but:

►In step 1 press [OUToff]�

►In step 2 press [OUTon]�

>Yellow LED on�

Electronic lock

►To lock press [OUTon] and [OUToff] together for 10��20 s�

>Acknowledgement: LED status (yellow) inverted�

►To unlock repeat procedure�

Operation

Check whether the unit operates correctly� Display by LEDs�

Yellow LED on OUT output is switched

Red LED on

Limit of the switch point compensation reached:

e�g� unit out of alignment; lens / reflector dirty

FC output switched

Yellow LED flashes

2 Hz: internal fault�

8 Hz: sensitivity setting incorrect�

(OUT output is not switched)�

Switch point compensation

The O5G501 unit has no switch point compensation�

Once the sensitivity setting has been carried out, the unit automatically compen-

sates for switch point drift�

The red LED lights and the output FC “Function check output” switches as soon

as the limit of the switch point compensation is reached� At this point the lens of

the unit and the prismatic reflector need to be cleaned (→ Maintenance).

After cleaning new programming of the unit is carried out automatically� To do so,

no object is allowed in the beam�

Maintenance

Keep the lens of the unit and the prismatic reflector free from contamination� For

cleaning do not use any solvents or cleaning agents which could damage the

plastic�

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