Siemens SINAMICS S120 Commissioning Manual page 188

Diagnostics
3.1 Diagnostics via LEDs
LED Color
Red
OPT –
(OPTION)
Green
Red
RDY and DP Red
RDY and OPT Orange
186
State
Flashing PROFIBUS master is sending wrong
light parameterization/configuration data
0.5 Hz
Flashing Cyclic bus communication has been interrupted
light or could not be established
2 Hz
Off Electronic power supply is missing or outside
permissible tolerance range.
Component is not ready.
Option board not installed or no associated drive
object has been created.
Continuous Option board is ready.
light
Flashing Depends on the option board used.
light
0.5 Hz
Flashing There is at least one fault of this component.
light The Option Board is not ready (e.g. after
2 Hz switching on).
Flashing Bus error - communication has been interrupted
light
2 Hz
Flashing Firmware update in progress for connected
light Option Board CBE20
0.5 Hz
Description, cause
Commissioning Manual, (IH1), 01/2012, 6SL3097-4AF00-0BP2
Remedy
Adapt configuration between
master/controller and CU
Remedy fault
Check power supply and/or
component
–
–
Remedy and acknowledge
fault
Remedy fault
-
Commissioning Manual