MAYSER 1005264, Руководство по эксплуатации, Страница: 29 / 43

281114 v1.3 Operating Instructions USi Page 29/43
Polymer Electric
Troubleshooting and remedies
Fault display Possible cause Elimination
Yellow LED “OUT X.X”
(normally open contact)
is lit, although there is
no variable object in the
detection
fi eld
Taught-in detection fi eld has changed Ä Press the “Teach In” button until the
green LED “Power”
fl ashes (see chap-
ter Teach In: Teach In Environment )
Yellow LED “OUT X.X”
(normally open con-
tact) is not lit, although
objects in the detec-
tion
fi eld are apparently
changing
The objects are actually outside of the
detection
fi eld
Ä Observe the maximum measurement
distance of 250 cm
Ä Observe the exit angle of the sonic
lobe: ±17° and ±5°
Switch points are incorrectly de fi ned Ä Reset the switch points
The fault is displayed exclusively on
OUT
2.X: Sensor 2 is logged off
Ä Logon Sensor 2
No signal at output Output connections have been switched Ä Check the lead colours on the unit
cable M12x8
Ä Wire the outputs correctly
The object is not
detected The object is outside of the detection fi eld Ä Check the limits of the detection fi eld
with a test object
Object has sound-absorbing structure Ä Check the acoustic quality of the
object
Ä Rethink the position of the sensor
Object with sound-dividing shape; sound
is de
fl ected
Ä Check the acoustic quality of the
object
Ä Rethink the position of the sensor
Exchange air for a different medium or
vacuum
Ä
Check the entire sound path to the
object: Is there air available along the
entire path as transmission medium?
Static object is some-
times detected, some-
times not detected The object is on the boundary of the
detection
fi eld
Ä Change the corresponding switch
point
Ä Recon fi gure the sensor
Object has sound-absorbing structure Ä Check the acoustic quality of the
object
Object with sound-dividing shape; sound
is de
fl ected
Ä Check the acoustic quality of the
object
Electromagnetic interference 1. Check the cable laying between the
sensor and the Evaluation Unit: Too
close to the source of interference?
2. Shield the USi from the source of
electromagnetic interference
3. Earth the Evaluation Unit