That's the kind of thing that usually requires contacting the manufacturer for. I'm assuming here that the display is dead so there is no fault code or indication. As a gross generalization, that sort of thing is often an internal control power supply failure of some sort.Hi,
I just powered up a Danfoss FC302 132kW drive. Nothing happens only a red led is lighted-up (ld400) meaning the DC circuit is powered up.
Anyone an idea what could be wrong with the drive?