Siemens SINAMICS S120 - Page 332

Diagnostics
7.2 LEDs on the CU320-2 DP Control Unit
Cabinet Modules NEMA
332 Manual, 04/2014, A5E03586450A
LED
Color
Status
Description, cause
Remedy
OPT
(OPTION)
– Off Electronics power supply is missing or outside
the permissible tolerance range.
Component is not ready.
Option board not installed or no associated drive
object has been created.
Check power supply and/or
component
Green Continuous
light
Option board is ready. –
Flashing
0.5 Hz
Depends on the option board used. –
Red Flashing
2 Hz
At least one fault is pending on this component.
Option board not ready (e.g., after switching on).
Remedy and acknowledge
fault
RDY and
COM
Red Flashing
2 Hz
Bus fault – communication has been interrupted Eliminate the fault
RDY and
OPT
Orange Flashing
0.5 Hz
Firmware update in progress for connected Op-
tion Board CBE20.
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