Troubleshooting steps
Check drive diagnostic display verify motor condition review drive parameters check protection settings
Danfoss VFD
Alarm 40 – Drive protection
Drive protection alarm
Details
Drive protection alarm 40. Check drive status and motor condition.
Error typealarm
MeaningDrive protection
Typical causesOvercurrent overvoltage undervoltage ground fault motor fault
SolutionsCheck drive diagnostic display verify motor condition review drive parameters check protection settings
Severityhigh
Catalog references
Vendor Information
DanfossAlarm 40
Utilities
Troubleshooting Steps
Related
Related Danfoss VFD Codes
FAQ
Common questions
How do I clear?
Fix the underlying cause then reset the alarm using drive reset or power cycle
Community
Discussion & Experiences
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