Danfoss VLT FCD 302 Operating Manual page 52

Operating Guide | VLT® Decentral Drive FCD 302
ALARM 30, Motor Phase U Missing
Cause
HAZARDOUS VOLTAGE
AC drives contain hazardous voltage when connected to the AC mains or connected on the DC terminals.
Failure to perform installation, start-up, and maintenance by qualified personnel can result in death or serious
injury.
Only qualified personnel must perform installation, start-up, and maintenance.
l
Motor phase U between the drive and the motor is missing.
Troubleshooting
Disconnect power from the drive and check motor phase U.
l
ALARM 31, Motor Phase V Missing
Cause
HAZARDOUS VOLTAGE
AC drives contain hazardous voltage when connected to the AC mains or connected on the DC terminals.
Failure to perform installation, start-up, and maintenance by qualified personnel can result in death or serious
injury.
Only qualified personnel must perform installation, start-up, and maintenance.
l
Motor phase V between the drive and the motor is missing.
Troubleshooting
Disconnect power from the drive and check motor phase V.
l
ALARM 32, Motor Phase W Missing
Cause
HAZARDOUS VOLTAGE
AC drives contain hazardous voltage when connected to the AC mains or connected on the DC terminals.
Failure to perform installation, start-up, and maintenance by qualified personnel can result in death or serious
injury.
Only qualified personnel must perform installation, start-up, and maintenance.
l
Motor phase W between the drive and the motor is missing.
Troubleshooting
Disconnect power from the drive and check motor phase W.
l
ALARM 33, Inrush Fault
Cause
Too many power-ups have occurred within a short time period.
52 | Danfoss A/S © 2025.04
WARNING
WARNING
WARNING
Operating the Drive
AQ267036816112en-000301 / 130R0208