Additional Functions; Fault Diagnosis - SICK PowerProx WTT12L Manual Del Usuario

4 WT teach modes
5

Additional functions

6

Fault diagnosis

7 Table : Fault diagnosis
8018110.YNG0 | 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 stan‐
dard I/O mode (exception: time stamp). Output of binary switching signals during stan‐
dard 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 Fault diagnosis 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 accor‐
ding to object /
Sensing range is
adjusted accor‐
ding to object
Sensing range is
adjusted accor‐
ding to object /
Sensing range is
adjusted accor‐
ding to object
Measures /
Measures
Check the power supply,
check all electrical connecti‐
ons (cables and plug connecti‐
ons) /
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