Due to the ongoing global component shortage, some internal PCB components of the EC-C1200 inverter have been changed to components with better availability. The component changes require updated firmware for the device. New firmwares are backwards compatible with all inverters produced after the year 2018, but older firmware versions do not support the new inverter hardware.
As older EC-C1200 firmware versions do not support the new hardware, uploading of old firmware to new inverter hardware was inhibited to prevent device failures. Due to this, a new version of the PowerUSER PC software, which is used to connect to the EC-C1200 devices, is required. This means that old versions of PowerUSER do not support the new hardware, and a new version of the PowerUSER is required in order to connect to the new hardware for parameter setup, firmware update, troubleshooting etc. PowerUSER version 9.9.0 or newer is required to establish a connection to inverters with new hardware. The latest PowerUSER version is freely downloadable from Danfoss.com webpage:
All new converter firmware versions as well as the new version of the PowerUSER remain to be backwards compatible with all Editron inverters and devices.