Troubleshooting - SICK ZSE18 Instrucciones De Operación

8

Troubleshooting

8021945 | SICK
Subject to change without notice
Operating reserve
1,000
100
10
1
0 5 10
(0.2) (0.39)
Figure 7: Characteristic curve, ZSE18-xxxxx8
3 Sensitivity setting
Sensor not possible to be set: The sensor has been adjusted by the factory to provide maxi‐
mum sensitivity and is ready for operation.
4 Operation with marginal light reception
The sensor will provide a pre-failure notification by flashing the orange LED indicator when
operating with marginal light reception. This may be the result of incorrect alignment or
contaminated optical surface(s). The sensor may be equipped with a Health or Alarm out‐
put, which provide a discrete signal when the sensor is operating in the marginal condition.
Refer to table 3 for additional detail on Health/Alarm output operation.
The Troubleshooting table indicates measures to be taken if the sensor stops working.
Table 6: Troubleshooting
LED indicator/fault pattern
Yellow LED does not light up
even though the sender is
aligned to the receiver and
there is no object in the path of
the beam
No object in beam path, no out‐
put signal
Yellow LED flashes; if Alarm /
Health is present then take
note of the corresponding out‐
put signal
15 20 25 30
(0.59) (0.79) (0.98) (1.18)
Distance in mm (inch)
Cause
No voltage or voltage below
the limit values
Voltage interruptions
Sensor is faulty
Test input (Test) is not con‐
nected properly
Sensor is still ready for opera‐
tion, but the operating condi‐
tions are not ideal
TROUBLESHOOTING
Measures
Check the power supply,
check all electrical connec‐
tions (cables and plug connec‐
tions)
Ensure there is a stable power
supply without interruptions
If the power supply is OK,
replace the sensor
Check connection of the test
input. When using female
cable connectors with LED
indicators, make sure the test
input is assigned correspond‐
ingly.
Check the operating condi‐
tions: Fully align the sender
and receiver / Clean the opti‐
cal surfaces
8
13