Forum

Share:
Notifications
Clear all

WARNING/ALARM 4 in danfoss VLT FCM300

1 Posts
1 Users
0 Reactions
249 Views
Posts: 18313
Admin
Topic starter
(@click2electro)
Member
Joined: 4 years ago

Cause : Mains phase loss comes when phase is missing on the supply side, or the mains voltage imbalance is too high. This message also appears for a fault in the input rectifier on the frequency converter.

  • Check the supply voltage and supply currents to the frequency converter.
Share: