Firmware Downgrade - Siemens SINAMICS G120 Operating Instructions Manual
Low voltage converters, chassis and wall/panel mounted devices with cu230p-2 control units
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Also See for SINAMICS G120:
- List manual (1256 pages) ,
- Manual (732 pages) ,
- Operating instructions manual (550 pages)
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Corrective maintenance
8.2 Firmware upgrade and downgrade
8.2.2
Firmware downgrade
When downgrading the firmware, you replace the inverter firmware by an older version. Only
downgrade the firmware to an older version if, after replacing an inverter, you require the
same firmware in all of your inverters.
Precondition
● The firmware version of your inverter is at least V4.6.
● Inverter and memory card have different firmware versions.
● You have backed up your settings on the memory card, in an operator panel or in a PC.
Procedure
Proceed as follows to downgrade the inverter firmware to an older version:
1. Switch off the inverter power supply.
2. Wait until all LEDs on the inverter are dark.
3. Insert the card with the matching firmware into the in-
4. Switch on the inverter power supply again.
5. The inverter transfers the firmware from the memory
342
verter slot until it latches into place.
card into its memory.
The transfer takes approximately 5 ... 10 minutes.
While data is being transferred, the LED RDY on the
inverter stays red. The LED BF flashes orange with a
variable frequency.
Converter with CU230P-2 Control Units
Operating Instructions, 04/2015, FW V4.7 SP3, A5E34257946B AB
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