Siemens SINAMICS S120 Commissioning Manual page 243

Control Unit 320-2 PN during run-up
Table 5- 3 Control Unit CU320-2 – description of the LEDs during ramp-up
LED Color
RDY Red
COM Orange
OPT Orange
RDY Red
COM Red
RDY Red
COM Red
RDY Red
COM Orange
RDY Red
RDY Red
COM Red
COM Red
RDY Red
COM Red
RDY Orange
Control Unit 320-2 PN during operation
Table 5- 4 CU320-2 PN Control Unit – description of the LEDs after powering up
LED Color
RDY –
Green
Red
Commissioning with Startdrive
Commissioning Manual, 12/2018, 6SL3097-5AA10-0BP0
Display State, description, cause
Steady light Hardware reset
Steady light BIOS loaded
Flashing light 2 Hz BIOS error: "An error occurred while loading the BIOS".
Steady light
Steady light Loading firmware: RDY LED lights up red, COM LED flashes
orange without fixed frequency.
Flashing light
Steady light Firmware has been loaded.
Flashing light 2 Hz File error:
•
•
Steady light Firmware has been checked. No CRC error detected.
Flashing light 0.5 Hz Firmware has been checked. CRC error detected.
Steady light Initializing firmware
Display Description, cause, remedy
OFF Electronics power supply is missing or outside permissible toler-
ance range.
Remedy: Check the power supply.
Continuous light The component is ready for operation and cyclic DRIVE-CLiQ
communication is taking place.
Flashing light Commissioning/reset
0.5 Hz
Flashing light Writing to the memory card
2 Hz
Flashing light with the Indicates PROFIenergy energy-saving mode.
on/off ratio
0.5 s = On
3 s = Off
Flashing light General errors
2 Hz
Remedy: Check parameterization / configuration data
Memory card not available or faulty.
Software on memory card not available or faulty.
Diagnostics
5.2 Diagnostics using LEDs
241