text: <s>[INST] powerflex variable frequency drive 753 EDIT: moved to Drives and Motion community -FL Hi, I was using a powerflex 753 cat no -20F11 N D 022 JA0NNNNN and recently it burned . On investigation I found out that this frequency drive is designed for 480 v 60 hz input whereas power input provided was 400 v 50 hz . Has it burned due to wrong input as I later found out that for 400 v 50 hz cat no should be -20F11 N C 022 JA0NNNNN. Please clarify. [/INST] Hello Mohan, The VSD has the capability of swapping between 400V and 480V using parameter 305. Parameter 305 is set to either 400V or 480V depending on the Catalog number of the VSD. This lead me to believe that the voltage range of the VSD is capable of 400V or 480V. This is explained in QA46486 and QA16097 I would suggest send the VSD to the repair shop, they will provide a detailed repair report indicating what components failed. Hope this helps. \\n </s>