Firmware Downgrade - Siemens SINAMICS G110M Operating Instructions Manual

Service and maintenance

8.6 Firmware downgrade

8.6 Firmware downgrade
When downgrading firmware you replace the inverter's firmware with an older version. Only
update the firmware to an older level if, after replacing a inverter, you require the same
firmware in all inverters.
Precondition
1. Your inverter's firmware is at least version V4.7.
2. You have the memory card with the firmware for that particular inverter.
3. You have saved your settings onto a memory card, in an operator panel or on a PC.
Procedure
To downgrade the inverter's firmware to an older version, proceed as follows:
1. Switch off the 24 V inverter power supply voltage.
If the inverter is equipped with a module for the internal 24 V power supply, you must
switch off the 400 V supply instead of the 24 V power supply.
2. Remove the Power Module.
3. Insert the card with the matching firmware into the slot on the lower side of the Power
Module until you can feel it snap into place.
4. Mount the Power Module with the inserted firmware card.
5. Switch on the 24 V inverter supply voltage.
If the inverter is equipped with a module for the internal 24 V power supply, you must
switch on the 400 V supply instead of the 24 V power supply.
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Distributed converter for SIMOGEAR geared motors
Operating Instructions, 06/2016, FW V4.7.6, A5E31298649B AG