Siemens SINAMICS S120 Manual page 267

Behavior of the LEDs after booting
Table 8- 3 Control Unit CU320-2 DP – Description of the LEDs after booting
LED Color
RDY (READY) -
Green
Red
Red/
green
Orange
Green/
orange
or
red/
orange
COM –
PROFIdrive
cyclic opera-
tion
Green
Red
Cabinet Modules liquid cooled
Manual, 10/2015, A5E37067587A
State
OFF The electronics power supply is missing or out-
side the permissible tolerance range.
Steady light The component is ready for operation and cyclic
DRIVE-CLiQ communication is taking place.
Flashing Commissioning / reset
0.5 Hz
Flashing Writing to the memory card
2 Hz
Flashing General errors
2 Hz
Flashing Control Unit is ready for operation.
0.5 Hz However, there are no software licenses.
Flashing Updating the firmware of the connected DRIVE-
0.5 Hz CLiQ components
Flashing DRIVE-CLiQ component firmware update has
2 Hz been completed. Wait for POWER ON of the
respective component.
Flashing Component detection via LED is activated
1 Hz (p0124[0]).
Note:
Both options depend on the LED status when
component detection is activated via
p0124[0] = 1.
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).
Steady light Cyclic communication is taking place.
Flashing Full cyclic communication has not yet taken
0.5 Hz place.
Possible causes:
The controller is not transferring any set-
•
points.
During isochronous operation, no global con-
•
trol (GC) or a faulty global control (GC) is
transferred by the controller.
Flashing PROFIBUS master is sending incorrect parame-
0.5 Hz terization / configuration data
Flashing Cyclic bus communication has been interrupted
2 Hz or could not be established
8.2 LEDs on the CU320-2 DP Control Unit
Description, cause
Diagnostics
Remedy
Check power supply
–
–
–
Check parameterization /
configuration
Upgrade licenses
–
Carry out POWER ON for
the components in question
–
–
–
–
Adapt configuration between
master / controller and CU
Correct the fault
267