LED indicator/fault pattern /
LED indicator/fault pattern
Cause /
Cause
Measures /
Measures
ity (potentiometer) (teach-in) /
Check sensing range and
adjust if necessary; see
graphic F. / H.
WTE23-2: Yellow LED flashes
(only briefly) /
WTE23-2: Yellow LED flashes
(only briefly)
Teach-in mode /
Teach-in mode
Check the teach-in mode /
Check the teach-in mode
WT(B)23-2: Yellow LED lights
up, no object in the path of the
beam /
WT(B)23-2: Yellow LED lights
up, no object in the path of the
beam
/ Distance between the sen‐
sor and the background is too
short /
/ Distance between the sen‐
sor and the background is too
short
Reduce the sensing range,
see graphic F / H /
Reduce the sensing range,
see graphic F / H
WTE23-2: Yellow LED lights up,
no object in the path of the
beam /
WTE23-2: Yellow LED lights up,
no object in the path of the
beam
Remission capability of the
background is excessive /
Remission capability of the
background is excessive
Check changes to the back‐
ground. Reduce the sensitivity
of the sensor or use sensors
with background suppres‐
sion /
Check changes to the back‐
ground. Reduce the sensitivity
of the sensor or use sensors
with background suppression
WT(B)23-2: Object is in the
path of the beam, yellow LED
does not light up /
WT(B)23-2: Object is in the
path of the beam, yellow LED
does not light up
Distance between the sensor
and the object is too long or
sensing range is set too
short /
Distance between the sensor
and the object is too long or
sensing range is set too short
Increase the sensing range,
see graphic F / H /
Increase the sensing range,
see graphic F / H
WTE23-2: Object is in the path
of the beam, yellow LED does
not light up /
WTE23-2: Object is in the path
of the beam, yellow LED does
not light up
Sensitivity is set too low or dis‐
tance between the sensor and
the object is too long /
Sensitivity is set too low or dis‐
tance between the sensor and
the object is too long
Increase the sensing range,
take note of the distance
between the sensor and the
background, see graphic F /
H /
Increase the sensing range,
take note of the distance
between the sensor and the
background, see graphic F / H
WTE23-2: Object is in the path
of the beam, yellow LED does
not light up /
WTE23-2: Object is in the path
of the beam, yellow LED does
not light up
Remission capability of the
object is insufficient /
Remission capability of the
object is insufficient
Increase the sensing range,
take note of the distance
between the sensor and the
background, see graphic F /
H /
Increase the sensing range,
take note of the distance
between the sensor and the
background, see graphic F / H
8
Disassembly and disposal
The sensor must be disposed of according to the applicable country-specific regula‐
tions. Efforts should be made during the disposal process to recycle the constituent
materials (particularly precious metals).
8
DISASSEMBLY AND DISPOSAL
6
8015974.YVM5 | SICK
Subject to change without notice