Electrical connection
5.6 Additional system components
SINAMICS DCP
Operating Instructions, 09/2019, A5E34382853K
65
Table 5- 7 Meaning of the OPT LED on the Control Unit
OPT – OFF Electronic power supply is missing or outside permissible
tolerance range.
Communication Board either defective or not inserted.
–
Green Continuous
light
Communication Board is ready and cyclic communication
is taking place.
–
Flashing light
0.5 Hz
The Communication Board is ready, but cyclic communi-
cations is not running.
Possible causes:
• At least one fault is present.
• Communication is being established.
–
Red Continuous
light
Cyclic communication via PROFINET has not yet been
established. However, non-cyclic communication is possi-
ble. SINAMICS is waiting for a parameteriza-
tion/configuration telegram.
–
Flashing light
0.5 Hz
The firmware update into the CBE20 has been completed
with an error.
Possible causes:
• The CBE20 is defective.
• The memory card for the Control Unit is defective.
CBE20 cannot be used in this state.
Replace the
memory card or the
CBE20.
Flashing light
2 Hz
There is a communications error between the Control Unit
and the CBE20.
Possible causes:
• The board was withdrawn after booting.
• The board is defective.
Correctly insert the
board, if required,
replace.
Orange Flashing light
0.5 Hz
Firmware of the CBE20 currently being updated. –
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