Table 4: Push / pull
Q
Push-pull
(≤ 100 mA)
Q
Push-pull
(≤ 100 mA)
6 Additional functions
Alarm
Alarm output: The sensor (WTL16P, WTS16P) features a pre-failure notification output
(“Alarm” in connection diagram [see table 3]), which issues a notification if the sensor
is only ready for operation to a limited extent. The LED indicator flashes in this case.
Possible causes: Sensor is contaminated, sensor is out of alignment. In the good state:
LOW (0), if excessively contaminated HIGH (1).
Health output: The sensor (WTL16P, WTS16P) features a pre-failure notification output
(“Health” in connection diagram [see table 3]), which issues a notification if the sensor
is only ready for operation to a limited extent or the cable has been interrupted. Possi‐
ble causes: Sensors are contaminated, sensors are out of alignment, cable is dam‐
aged. In the good state: HIGH (1), if excessively contaminated or in the event of cable
interruption LOW (0). The LED indicator flashes in this case.
Test input
Test input: The WTL16P, WTS16P sensors feature a test input (“TI” or “Test” on the con‐
nection diagram [see table 2, table 3 and table 5]), 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 have to ensure that the TI is assigned
accordingly.
If an object is detected, activate the test input (see the connection diagram[see table 2,
table 3 and table 5]). The send LED is shut down or no object being detected is simu‐
lated. Refer to table 5 to check the function. If the switching output fails to behave in
accordance with table 5, check the application conditions. See section Fault diagnosis.
ADDITIONAL FUNCTIONS 6
8020347.14CS | SICK
Subject to change without notice
7