8
Troubleshooting
8.1
Safety
DANGER
Hazard due to lack of effectiveness of the protective device
In the case of non-compliance, it is possible that the dangerous state of the machine
may not be stopped or not stopped in a timely manner.
b
Immediately shut the machine down if the behavior of the machine cannot be
clearly identified.
b
If a machine fault cannot be definitively determined or safely rectified, immediately
shut the machine down.
b
Secure the machine so that it cannot switch on unintentionally.
DANGER
Hazard 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
Hazard due to lack of effectiveness of the protective device
In the case of non-compliance, it is possible that the dangerous state of the machine
may not be stopped or not stopped in a timely manner.
b
Do not carry out any repairs on the device components.
b
Do not modify or manipulate device components.
b
Apart from during the procedures described in this document, the device compo‐
nents must not be opened.
NOTE
Additional information on troubleshooting can be found at the responsible SICK sub‐
sidiary.
8.2
Diagnostic LEDs
8.2.1
Switching on
Table 15: LED displays during initialization
STATE light emitting diode
(red/green)
DIAG light emitting diode (yel‐
low)
Duration
O
green
o
500 ms
O
red
o
500 ms
o
O
yellow
500 ms
Ö
green
1)
o
1)
For unique coded and permanently coded safety switches only: If any actuators have already been taught
in, the STATE light emitting diode will flash once after initialization for each taught-in actuator.
8
TROUBLESHOOTING
30
O P E R A T I N G I N S T R U C T I O N S | STR1
8018754/12IU/2020-01-30 | SICK
Subject to change without notice
