Danfoss VLT FC 360 Drive
1
Posts
1
Users
0
Reactions
299
Views
Feb 08, 2024 5:50 am
Warning /Alarm 127 in danfoss VLT FC360 drive : Back EMF too High - this warning applies to PM motors only. When the back EMF exceeds 90% x Uinvmax (overvoltage threshold) and does not drop to a normal level within 5 s, this warning is reported. The warning remains until the back EMF returns to a normal level.
Check the settings in parameter group 1-2* Motor Data.
