IFM efector 200 OGH User manual

Operating instructions
Diffuse reflection sensor
with background suppression
OGH
701166 / 03 09 / 2005
UK
UK

2
Function and features
The diffuse reflection sensor detects objects and materials without contact and
indicates their presence by a switched signal.
Range (r): see type label (value referred to white paper 200mm x 200mm).
Electrical connection
The device shall be supplied from an isolating source and protected by
an overcurrent device such that the limited voltage circuit requirements in
accordance with UL 508 are met.
Isolate power, then connect the unit (see page 5 or type label).
Core colours (for sensors with cable connection): BN = brown, BU = blue, BK =
black.
Programming of the output function (light-on or dark-on) by wiring (see page 5 or
type label).
Installation
21
Pushbutton
LEDs red, green, yellow
Align the photocell and fasten it to a mounting bracket.
Maximum range is only possible with precise alignment.
1:
2:

3
UK
Setting of the sensitivity with stationary objects
1
Activate the programming mode of the unit without object.
Press for about 2s until the red LED flashes.
The red LED goes out; the yellow and green LEDs flash alternately.
The unit is in the programming mode.
If in addition the red LED is lit, the reflection of the background is too intensive (e.g.
reflecting surface). Angle the unit in the horizontal plane until the red LED goes out.
If you continue with step 3 although the red LED is lit, programming is interrupted.
The unit then passes into the operating mode with the setting being unchanged.
2
Setting without object.
Press once.
The yellow and green LEDs go out for approx. 1s, then flash again alternately.
3
Setting with object.
Press once.
The yellow and green LEDs go out for approx. 1s, then the green LED is on.
The unit is in the operating mode.
Programming is only possible if you keep to this order (first background, then
object).

4
If the setting of the sensitivity is not possible (e.g. object signal and
background signal are about the same), the red LED flashes after step
3 for approx. 2s. The unit then passes into the operating mode with the
sensitivity being unchanged.
Setting of the maximum sensitivity
Go into the programming mode (step 1).
Align the unit so that no light is reflected.
Press the setting button twice (see steps 2 and 3).
Locking / Unlocking
Press for 10s
The red LED lights for a short time,
then the yellow and green LEDs flash
alternately;
after 10s the LEDs go out, the unit is
locked.
Press for 10s
After 10s the LEDs go out, locking is
cancelled.
Operation
Check the safe functioning of the diffuse reflection sensor. Display by LEDs.
LED green lights Unit is ready for operation.
LED yellow lights Output is switched.
LEDs yellow + red
Flash alternately, 2 Hz: output short-circuited.
Flash alternately, 1 Hz: internal malfunction,
(output is not switched).
Maintenance
Keep the lens of the sensor free from soiling.
For cleaning do not use any solvents or cleaning agents which could damage the
plastic lenses.
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5
UK
Wiring
DC PNP
BN
BK
BU
L+
L
BU
BK
BN
L+
L
L+
L
1
4
3
L+
L
3
4
1
DC NPN
L
BN
BK
BU
L+
L
BU
BK
BN
L+
1L+
L
4
3
3
L+
L
4
1