3
UK
4 Operation
Check the safe functioning of the retro-reflective sensor. Display by LEDs and (for
sensors with plug and socket connection) by the function-check output.
sensor with cable
sensor with plug
1: LEDs
2: setting potentiometer sensitivity
Sensor with cable
LED green
supply voltage O.K.
LED yellow
output switched
flashing, 3 Hz: output short-circuited
flashing, 1 Hz: internal malfunction (output is not switched)
Sensor with plug
LED green
supply voltage O.K.
LED yellow
output switched
LED red
error in object detection, e.g. maladjustment, soiling of the lenses
LED red flashing alternately, 3 Hz: output short-circuited
flashing alternately, 1 Hz: internal malfunction (output is not switched)
5 Maintenance
Keep the lens of the sensor free from soiling.
Technical data and further information at www.ifm.com
