Additional Functions - SICK WTB16 Instrucciones De Operación

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Additional functions

8020346.19RH / 22.12.2020 | SICK
Subject to change without notice
PNP
Push-pull
NPN
PNP
Push-pull
NPN
Alarm
Alarm output: The sensor (WTB16) features a pre-failure notification output ("Alarm" in
connection diagram [see table
for operation to a limited extent. The LED 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 (WTB16) features a pre-failure notification output ("Health"
in connection diagram [see table
ready for operation to a limited extent or the cable has been interrupted. Possible
causes: Sensors are contaminated, sensors are out of alignment, cable is damaged. In
the good state: HIGH (1), if excessively contaminated or in the event of cable interrup‐
tion LOW (0). The LED flashes in this case.
Test input
Test input: The WTB16 sensors feature a test input ("TI" or "Test" on the connection
diagram [see table 2], 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). The send
LED is shut down or no object being detected is simulated. Refer to
function. If the switching output fails to behave in accordance with the graphic, check
the application conditions.
Table 5: Test
+ (L+)
Q ≤ 100 mA
Push-pull
‒ (M)
+ (L+)
Q ≤ 100 mA
Push-pull
‒ (M)
3]), which issues a notification if the sensor is only ready
3]), which issues a notification if the sensor is only
see „Troubleshooting", page 14
Test → M
+ (L+)
Test
– (M)
+ (L+)
Test
– (M)
ADDITIONAL FUNCTIONS
+ (L+)
PNP
Q ≤ 100 mA
NPN
‒ (M)
+ (L+)
PNP
Q ≤ 100 mA
NPN
‒ (M)
table 5 to check the
Test → L+
+ (L+)
Test
– (M)
+ (L+)
Test
– (M)
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