11 Troubleshooting
11.1 Safety
DANGER
H
azard due to lack of effectiveness of the protective device
Persons and parts of the body to be protected may not be recognized in case of non-
observance.
b
Immediately shut the machine down if the behavior of the machine cannot be
clearly identified.
b
Immediately put the machine out of operation if you cannot clearly identify or allo‐
cate the fault and if you cannot safely remedy the fault.
b
Secure the machine so that it cannot switch on unintentionally.
DANGER
H
azard due to unexpected starting of the machine
b
When any work is taking place, use the protective device to secure the machine or
to ensure that the machine is not switched on unintentionally.
DANGER
H
azard due to lack of effectiveness of the protective device
Persons and parts of the body to be protected may not be recognized in case of non-
observance.
b
Do not do repair work on device components.
b
Do not make changes to or manipulate device components.
b
Apart from the procedures described in this document, the device components
must not be opened.
NOTE
A
dditional information on troubleshooting can be found at the responsible SICK sub‐
sidiary.
11.2 Diagnostic LEDs
11.2.1 Indications when switching on
Overview
Immedia
tely after switching on, all LEDs on the sender and receiver briefly light up.
Following this, the information below regarding configuration is indicated briefly.
Sender
P
osition of LEDs: see "Sender indicators", page 18.
Table 16: Indications on the sender when switching on
LEDs Meaning
STATE Field
Ö Yellow, flashes once
Beam coding, code 1 is c
onfig‐
ured.
Ö Y
ellow, flashes twice
Beam coding, code 2 is c
onfig‐
ured.
TROUBLESHOOTING 11
8022883/2019-03-07 | SICK O P E R A T I N G I N S T R U C T I O N S | deTec4 Ex
79
Subject to change without notice
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