14
10 Troubleshooting
LED display → 8.3
Problem
Possible cause
Troubleshooting
No LED display
No voltage supply
Apply voltage
Power LED flashes and
sensor does not switch
• Undervoltage
• Overvoltage
Correct the voltage
(→ 9 Technical data)
Sensor does not switch,
not even after undamping
and redamping
Sensor was brought into the
safe state (logic "0")� Cause:
• cross fault between both
outputs A1 and A2
• cross fault between output
A2 and the supply voltage
• error in the sensor detected
• Remove the cross fault
• Replace the unit
No close zone
Due to its characteristics
(material, form, size), the
damping element displaces
the enable zone until directly
in front of the sensing face
If possible, change the
material, form or size of the
damping element (→ 5.1
Enable zone)
11 Maintenance, repair and disposal
If used correctly, no maintenance and repair measures are necessary�
Only the manufacturer is allowed to repair the unit�
After use dispose of the unit in an environmentally friendly way in accordance with
the applicable national regulations�
