FC 301 302 troubleshooting answers
1 question with answers cited from the manufacturer manuals.
- 0Danfoss FC 301/302 VFD showing ALARM 84, "No safety option"?
ALARM 84 on a Danfoss VLT AutomationDrive FC 301/302 indicates that a safety option, which was previously installed, has been removed without performing a general reset. The VFD expects the safety option to be present. T…