Siemens SINAMICS G115D

10.6.3 Downgrading the 󹪝rmware
Introduction
When downgrading the 󹪝rmware, you replace the converter 󹪝rmware with an older version.
Only update the 󹪝rmware to an older level if, after replacing a converter, you require the
same 󹪝rmware in all converters.
Precondition
• Converter and memory card have di󹪜erent 󹪝rmware versions.
• You have the memory card with the 󹪝rmware for that particular converter.
• You have backed up the converter settings on the memory card or in a PC, or on the SINAMICS
G120 Smart Access.
Data backup and series commissioning (Page351)
Function description
The following procedure applies to both the G115D motor-mounted converter and the G115D
wall-mounted converter.
Procedure
1. Switch o󹪜 the line voltage to the converter and (if installed) the external 24 V power supply
or the voltage for the digital outputs of the converter.
2. Wait until all LEDs on the converter are dark.


/('2))

9
3. Insert the memory card with the matching 󹪝rmware into the converter slot until it latches into
place.

9
4. Switch on the power supply of the converter again.
Corrective maintenance
10.6Firmware upgrade and downgrade
SINAMICS G115D Wall Mounted distributed drive
406 Operating Instructions, 07/2023, FW V4.7 SP14, A5E52808211A AA