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Installation and Electrical Connection
DANGER!
Risk of personal injury or property damage due to electric current!
Voltage conducting parts may cause personal injury or damage to equipment.
• The electric device may only be connected by appropriately qualified personnel.
5.3 Diagnostics
Causes for Triggering the Contamination Warning (blinking LED):
Display LED
Diagnosis/Cause
Elimination
Continuous blinking
at approx. 2.5 Hz
Contamination
Carefully clean the optic cover with a cloth.
Aged emitter diode
Replace the sensor.
Unreliable working range
• Increase the sensor’s switching distance.
• Reduce distance between sensor and object.
Continuous blinking
at approx. 5 Hz
Short-circuit
Check electrical wiring and eliminate the short-circuit.
Over-temperature
Disconnect the sensor from supply power
and allow it to cool down.
Hardware error
Replace the sensor.
