14
11 Troubleshooting
→
8�3 LED display
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
(
→
10 Technical data)
Sensor does not switch,
even not 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 one
output (A1 or 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)
12 Maintenance, repair, disposal
In case of correct use 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�
