Welotec OWLG Series User manual

CAT-OWLG/OWLS-QSG-V1.0 EN ed. 01/2021 Welotec GmbH
Welotec GmbH
www.welotec-sensors.com
Zum Hagenbach 7
D-48366 Laer
[email protected]
[phone]
OWLG/OWLS Series – Laser distance sensors
•Ultra compact design
•Measuring ranges up to 550mm
•Versions with laser line for rough surfaces (OWLS only)
•Measuring rate up to 5 kHz
•Robust metal housing with protection class IP67
OWLG/OWLS Series
QUICK START GUIDE
OWLG OWLS
OWLG OWLS

CAT-OWLG/OWLS-QSG-V1.0 EN ed. 01/2021 Welotec GmbH
Welotec GmbH
www.welotec-sensors.com
Zum Hagenbach 7
D-48366 Laer
[email protected]
[phone]
OWLG/OWLS Series
INSTALLATION INSTRUCTIONS
CONNECTION DIAGRAM
PIN ASSIGNMENT
LASER
1BN Brown
2WH White
3BU Blue
4BK Black
1+Vs
2teach in
30 V
4analog
If the teach-in line is not used, set it to 0 V.
Operating voltage range: +Vs = 12 - 28 VDC.
Disconnect power from the system before connecting the device. Power supply according to UL 1310, Class2 or
external fuse protection by a UL recognized or listed fuse with max. 100 W/Vp or max. 5 A under 20 V.
Note on electromagnetic compatibility: Shielded connection cable recommended. Ground the cable shield on
both sides, over a large area, and ensure potential equalization.
Depending on the version, the product has laser class 1 or laser class 2 (see data sheet). The
following applies to laser class 2
•Laser radiation!
•Do not look into the laser beam.
•Class 2 laser product.

CAT-OWLG/OWLS-QSG-V1.0 EN ed. 01/2021 Welotec GmbH
Welotec GmbH
www.welotec-sensors.com
Zum Hagenbach 7
D-48366 Laer
[email protected]
[phone]
OWLG/OWLS Series
INSTRUCTIONS FOR APPROPRIATE USE
MEASURING FIELD
SENSOR-LEDS
MOUNTING
PARAMETERIZING THE SENSOR
This product is a precision device and is used to detect objects,the acquisition of physical measured units and for
the evaluation of measured values for output in form of electrical signals for the higher-level system.
Unless this product is specially labeled, it must not be used for operation in potentially explosive atmospheres.
ZP Zero position
Sdc Start of measurement range
Sde End of measurement range
DBlind region
MR Measurement range
POWER Green - Illuminated Sensor ready for operation
ALARM Red - Illuminated No valid signal within the measurement range
ALARM Red - Blinking Critical signal quality
•For measurement objects with shiny surfaces: Tilt
the sensor 6° to 10° to the side so that the light
reflecting directly from the surface does not hit the
sensor‘s receiver.
•For mounting, use at least 1 tooth lock washer to
break up the paint layer of the sensor.
OWLG OWLS
Screws 2x M3 2x M4
Torque 0.6 Nm ±10 % 1 Nm ±10 %
The following options are available for parameterizing the sensor:
•Teach-in line
•Teach button on the sensor
The teach button is automatically deactivated after 5 minutes. Parameterization via the teach line takes place
analogously to parameterization with the teach button. Connect the teach-in line to +Vs for this purpose. The
teach-in line is not blocked and is also available during operation. The parameterization via the teach button is
described below.

CAT-OWLG/OWLS-QSG-V1.0 EN ed. 01/2021 Welotec GmbH
Welotec GmbH
www.welotec-sensors.com
Zum Hagenbach 7
D-48366 Laer
[email protected]
[phone]
OWLG/OWLS Series
TEACHING AN ANALOG MEASUREMENT FIELD
Instruction:
a) Briefly press the Teach button.
•Red LED lights up (teach button is active).
If the red LED does not light up, restart the sensor or connect the teach-in line to +Vs for 15 seconds.
b) Press and hold the teach button for 5 seconds.
•- Red LED blinks.
c) Teach min. limit of analog measurement range (distance at which min. voltage or min. current is displayed):
Place the measurement object on position 1 (P1) and briefly press the teach button.
•Red LED lights up for 3 seconds and then continues to blink evenly.
d) Teaching in the max. limit of the analog measurement range (distance at which max.voltage or max. current is
displayed): Place the measurement object on P2 and briefly press the teach button.
Result:
•Teach-in ok: Red LED lights up for 3 seconds and then blinks briefly. Afterwards, the sensor goes back to
operating mode.
•Teach-in not ok: Red LED blinks for 5 seconds. Afterwards, the teaching process is aborted without the
parameterization being performed.
Notice:
The characteristic curve of the analog output can be inverted by the teaching process (negative gradient). To do
this, teach the maximum distance for P1 and the minimum distance for P2.
RESETTING TO FACTORY SETTINGS
Instruction:
a) Briefly press the Teach button.
•Red LED lights up (teach button is active).
If the red LED does not light up, restart the sensor or connect the teach-in line to +Vs for 15 seconds.
b) Press and hold the Teach button for 15 seconds (after 5, the red LED will start blinking, but do not release the
Teach button).
Result:
•Teach-in ok: Red LED lights up.Afterwards, the sensor goes back to operating mode.
•Teach-in not ok: Red LED blinks for 5 seconds.Afterwards,the teach process is aborted without the parame-
terization being performed.
Shifting the limits of the analog measuring field allows you to adjust the resolution of the analog output. By
narrowing the analog measuring field, smaller distance changes can be displayed.

CAT-OWLG/OWLS-QSG-V1.0 EN ed. 01/2021 Welotec GmbH
Welotec GmbH
www.welotec-sensors.com
Zum Hagenbach 7
D-48366 Laer
[email protected]
[phone]
OWLG/OWLS Series
TROUBLESHOOTING
•Error:
The sensor does not start even though the power supply is connected.The LEDs of the sensor are switched off.
•Possible cause:
The voltage supply is interrupted. A short circuit has occurred.
•Remedy:
Check the electrical connection of the sensor according to the connection diagram.
•Error:
A valid measurement cannot be recorded, the LED is on in red, and the laser is switched on.
•Possible cause:
The measuring object is outside the measuring range (MR). Refer to the data sheet for the measuring range
for your sensor version.
•Remedy:
Move the measurement object into the measurement range.
•Error:
The measurement results are incorrect.
•Possible cause:
The direct reflection of the laser hits the receiver of the sensor. This happens especially on shiny surfaces.
•Remedy:
Tilt the sensor sideways so that the direct reflection of the laser does not hit the receiver of the sensor.
•Error:
The measured value shows faulty, erratic behavior.
•Possible cause:
Too much ambient light is entering the field of view of the sensor receiver.This leads to disturbing peaks on
the receiver.
•Remedy:
Reduce the ambient light (e.g. by using a cover).
FACTORY SETTINGS
DESCRIPTION VALUE
Min. limit of analog measurement range Sdc
Max. Limit of the analog measurement range Sde
MAINTENANCE
The sensor is maintenance-free. No special maintenance is required. Regular cleaning and regular checking of
the plug connections is recommended.