Siemens SINAMICS S120 Commissioning Manual page 164

Diagnostics
3.1 Diagnostics via LEDs
LED Color
DP
–
PROFIdrive
cyclic
operation
Green
Red
OPT –
(OPTION)
Green
Red
RDY and DP Red
RDY and OPT Orange
162
State
Off Cyclic communication has not (yet) taken place.
Note:
The PROFIdrive is ready to communicate when
the Control Unit is ready to operate (see LED
RDY).
Continuous Cyclic communication is taking place.
light
Flashing Full cyclic communication has not yet taken
light place.
0.5 Hz
Possible causes:
The controller is not transferring any

setpoints.
During isochronous operation, no global

control (GC) or a faulty global control (GC) is
transferred by the controller.
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), 01/2011, 6SL3097-4AF00-0BP1
Remedy
–
–
–
Adapt configuration between
master/controller and CU
Remedy fault
Check power supply and/or
component
–
–
Remedy and acknowledge
fault
Remedy fault
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Commissioning Manual