Additional Functions - SICK WLA26 Instrucciones De Operación

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Additional functions

8020357.19RH / 15.01.2021 | SICK
Subject to change without notice
Table 4: Push-pull, PNP, NPN
PNP
Push-pull
NPN
PNP
Push-pull
NPN
Alarm
Alarm output: The sensor (WLA26) features a pre-failure notification output ("Alarm" in
the connection diagram [see table
ready for operation to a limited extent. The LED flashes in this case. Possible causes:
sensor or reflector is contaminated, sensor is out of alignment. In the good state: LOW
(0), if excessively contaminated HIGH (1).
Health
Health output: The sensor (WLA26) features a pre-failure notification output ("Health"
in the connection diagram
only ready for operation to a limited extent or the cable has been interrupted. Possible
causes: Sensor or reflector is contaminated, sensor is 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 yellow LED indicator flashes in this case.
+ (L+)
Q ≤ 100 mA
Push-pull
‒ (M)
+ (L+)
Q ≤ 100 mA
Push-pull
‒ (M)
2]), which issues a notification if the sensor is only
[see table 2]), which issues a notification if the sensor is
ADDITIONAL FUNCTIONS
+ (L+)
PNP
Q ≤ 100 mA
NPN
‒ (M)
+ (L+)
PNP
Q ≤ 100 mA
NPN
‒ (M)
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