Siemens SINAMICS S120 Manual page 273

Table 8- 9 Meaning of the OPT LED on the Control Unit
LED Color
OPT –
Green
Red
Orange
Cabinet Modules liquid cooled
Manual, 10/2015, A5E37067587A
State Description, cause
OFF The electronics power supply is missing or outside the per-
missible tolerance range.
Communication Board either defective or not inserted.
Steady Communication Board is ready and cyclic communication is
light taking place.
Flashing The Communication Board is ready, but cyclic communica-
0.5 Hz tions is not running.
Possible causes:
At least one fault is present.
•
Communication is being established.
•
Steady Cyclic communication via PROFINET has not yet been
light established. However, acyclic communication is possible.
SINAMICS waits for a parameterizing/configuration tele-
gram.
Flashing The firmware update into the CBE20 has been completed
0.5 Hz with an error.
Possible causes:
The CBE20 is defective.
•
The memory card for the Control Unit is defective.
•
In this state CBE20 cannot be used.
Flashing There is a communications error between the Control Unit
2 Hz and the CBE20.
Possible causes:
The board was withdrawn after power up.
•
The board is defective.
•
Flashing Firmware is being updated.
0.5 Hz
8.4 LEDs on the CBE20 Communication Board
Diagnostics
Remedy
–
–
–
–
–
Correctly insert the
board, if required,
replace.
–
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