Corrective maintenance
9.2 Firmware upgrade and downgrade
Converter with control units CU250D-2
Operating Instructions, 04/2015, FW V4.7.3, A5E34261542B AB
309
Firmware upgrade and downgrade
User actions
Inverter response
Figure 9-2 Overview of the firmware upgrade and firmware downgrade
You will find more information in the Internet at: Download
(https://support.industry.siemens.com/cs/ww/en/view/67364620)