Siemens SINAMICS S120 Manual page 311

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
Cabinet Modules liquid cooled
Equipment Manual, 04/2020, A5E37067587A
State Description, cause
Off The electronics power supply is missing or out-
side the permissible tolerance range.
Steady The component is ready for operation and cyclic
light DRIVE-CLiQ communication is taking place.
Flashing Commissioning/reset
0.5 Hz
Flashing Writing to the memory card
light
2 Hz
Flashing PROFIenergy energy-saving mode is active (in
light conjunction with option G33 - CBE20)
0.5 s on,
3 s off
Flashing General errors
light
2 Hz
Flashing Control Unit is ready for operation.
light However, there are no software licenses.
0.5 Hz
Flashing Updating the firmware of the connected DRIVE-
0.5 Hz CLiQ components
Flashing DRIVE-CLiQ component firmware update has
light been completed. Wait for POWER ON of the
2 Hz respective component.
Flashing Component recognition via LED is activated.
light
Note:
2 Hz
Both options depend on the LED status when
component recognition is activated via p0124[0]
= 1.
Off Cyclic communication has not (yet) taken place.
Comment:
PROFIdrive is ready for communication if the
Control Unit is ready (see LED RDY).
Steady 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 set-
•
points.
During isochronous operation, no global con-
•
trol (GC) or a faulty global control (GC) is
transferred by the controller.
8.2 LEDs on the CU320-2 DP Control Unit
Remedy
Check power supply
–
–
–
–
Check parameterization /
configuration data
Upgrade licenses
–
Carry out POWER ON for the
components in question
–
–
–
–
Diagnostics
309