SICK C4-RD

10 Troubleshooting
10.1 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
allocate 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 subsid‐
iary.
10.2 Diagnostic LEDs
10.2.1 Fault indicators
Overview
In t
he event of a fault, the type of fault is indicated by the LED display on the sender or
receiver.
Sender
P
osition of LEDs: see "Sender indicators", page 12.
TROUBLESHOOTING 10
8025644/19Z2/2021-03-09 | SICK O P E R A T I N G I N S T R U C T I O N S | C4-RD
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Subject to change without notice