| Finding | Action | |---------|--------| | Shorted brake resistor | Replace resistor brake IGBT (drive repair or replacement) | | Shorted IGBT only | Replace drive power section or entire drive (component-level repair for advanced techs) | | External wiring short | Repair wiring, then verify IGBT still healthy (often already damaged) | | Gate driver fault | Return drive to Danfoss service center |
Wait for the display to go completely dark (allowing capacitors to discharge). Power back on to see if the internal communication resets. :
Leo chose door number three.
Rarely. Danfoss has released patches for specific fieldbus stacks (especially early Profinet versions). Check the release notes for your drive’s current firmware version.