Siemens SIMATIC ET 200pro Series Operating Instructions Manual page 206

Repair
9.3 Firmware upgrade and downgrade
8. Once the transfer is completed, the RDY and SAFE LEDs flash slowly (0.5 Hz) red or
yellow.
Note
Power supply failure during the transfer
The inverter firmware will be incomplete if the power supply fails during the transfer.
• Start again with Step 1 of these instructions.
9. Switch off the 24 V converter power supply.
10.Wait until the LEDs on the Control Unit have gone out.
Decide whether to remove the memory card from the converter:
– You leave the memory card in place:
– You remove the memory card. In this case, the converter retains its settings:
206
If the memory card does not contain any data backup for the converter settings, the
converter writes its settings to the memory card in the next step.
If the memory card already includes a data backup, the converter imports the settings
from the memory card in the next step.
Note
The converter imports the settings from the memory card.
The further procedure can change the converter settings.
• If the memory card already contains settings, check whether the settings are
suitable for the converter.
• If the settings are not suitable for the converter, remove the memory card.
Operating Instructions, 09/2017, FW V4.7 SP9, A5E34257324B AE
SIMATIC ET 200pro FC-2 converter