SICK T4000 Multi - 8 Troubleshooting; Safety; LED Status Indicators

8 Troubleshooting
8.1 Safety
DANGER
H
azard 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
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
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
If y
ou cannot remedy the fault with the help of the information provided in this chapter,
please contact your respective SICK subsidiary.
8.2 LED status indicators
Table 4: Meaning of LED indicators
LED indication Meaning
STATE
O Gr
een
Normal mode
Ö Gr
een
Teach-in process (for other signal function, see S
ystem
status)
OUT
O Y
ellow
Valid actuators detected at all connected sensors
DIA
O R
ed
■
T
est input activated
■
Internal error
■
EDM fault
■
Invalid teach-in process (see System status)
■
EMC fault
NOTE
In t
he event of a fault, the evaluation unit can be reset to operational status by inter‐
rupting the voltage supply (approx. 10 seconds).
TROUBLESHOOTING 8
8022726/2019-05-07 | SICK O P E R A T I N G I N S T R U C T I O N S | T4000 Multi
31
Subject to change without notice