Corrective maintenance
10.9 Upgrading firmware
Converter with control units CU250D-2
Operating Instructions, 04/2014, FW V4.7, A5E34261542B AA
291
10.Reconnect all plugs and switch on the 24 V supply.
11.If the firmware upgrade was successful, the Control Unit responds after a few seconds
with the RDY LED lighting up green.
You have successfully updated the inverter's firmware to a newer version. When there is an
upgrade your settings will be stored in the inverter.
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