Additional Functions - SICK WTB16 Manual Del Usuario

6

ADDITIONAL FUNCTIONS

en
6 Additional functions
24 O P E R A T I N G I N S T R U C T I O N S | WTB16
Table 10: Push-pull, PNP, NPN
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 sensors WTB16 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
table 2]).
The send LED is shut down or no object being detected is simulated. Refer to
to check the function. If the switching output fails to behave in accordance with the
graphic, check the application conditions.
+ (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
+ (L+)
PNP
Q ≤ 100 mA
NPN
‒ (M)
+ (L+)
PNP
Q ≤ 100 mA
NPN
‒ (M)
[see
table 5
31.
8020346.1DS6/2021-11-24 | SICK
Subject to change without notice