Nidec & Control Techniques Commander S, SE, SX, SK & SP Drive
1
Posts
1
Users
0
Reactions
1,509
Views
Apr 05, 2024 10:15 am
Cause : Soft start relay failed to close, or soft start monitor failed, or braking IGBT short circuit at power up- This indicate fatal problems and cannot be reset. The drive is inactive after this trips and the display shows HF26.
- The serial communications is inactive and the parameters cannot be accessed.
