Additional Functions; Fault Diagnosis - SICK PowerProx - WTT12L Manual De Operación

4 WT teach modes
5

Additional functions

6

Fault diagnosis

7 Table : Fault diagnosis
8018110 | SICK
Subject to change without notice
Teach-in mode Teach-in time /
for objects /
Teach-in time
Teach-in mode
for objects
Single teach-in Approx. 1.0 s /
pushbutton /
Approx. 1.0 s
Single teach-in
pushbutton
ET: Connect pin 5 > 2 s
or gray wire to UV
for > 2 to < 4 s
(). /
ET: Connect pin 5
or gray wire to UV
for > 2 to < 4 s ().
Test input: The WTT12L sensor features a test input ("TI" or "Test" on the connection
diagram [B]), which can be used to switch the sender off and therefore check that the
sensor is functioning correctly: If female cable connectors with LED indicators are used,
you must ensure that the TI is assigned accordingly.
There must be an object in the path of the beam (light reception); activate the test input
(see the connection diagram [B], TI 24 V). The send LED is shut down or no object
being detected is simulated. Refer to Graphics C to check the function. If the switching
output fails to behave in accordance with Graphic C, check application conditions. See
section Fault diagnosis.
The sensor can be used in standard I/O mode (SIO) or IO-Link mode (IOL). All automa‐
tion functions and other parameter settings are effective in IO-Link mode and in stand‐
ard I/O mode (exception: time stamp). Output of binary switching signals during stand‐
ard I/O operation via pin 4/black wire or via pin 5/gray wire.
Information on the IO-Link functions can be found in the enclosed IO-Link photoelectric
sensors operating instructions or downloaded from www.sick.com under the device
order number.
Table indicates which measures are to be taken if the sensor stops working.
LED indicator/fault pattern /
LED indicator/fault pattern
Green LED does not light up /
Green LED does not light up
Alignment / LED indicator /
Alignment LED indicator
Sensor to

object /
Sensor to object
Sensor to

object /
Sensor to object
Cause /
Cause
No voltage or voltage below
the limit values /
No voltage or voltage below
the limit values
WT TEACH MODES
Results /
Results
Sensing range is
adjusted accord‐
ing to object /
Sensing range is
adjusted accord‐
ing to object
Sensing range is
adjusted accord‐
ing to object /
Sensing range is
adjusted accord‐
ing to object
Measures /
Measures
Check the power supply,
check all electrical connec‐
tions (cables and plug connec‐
tions) /
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