Reference Source

63 · FC 301/302 · ALARM

For 63 · FC 301/302 · ALARM, brand is Danfoss; model / series is FC 301/302; fault code is 63; fault name is Mechanical brake low; type is ALARM, verified against its source on 2026-09-01.

Brand
Danfoss
Model / series
FC 301/302
Fault code
63 verified
Fault name
Mechanical brake low verified
Type
ALARM verified
Cause
The actual motor current has not exceeded the release brake current within the start delay time window. verified
Sourcefiles.danfoss.com
Verified
Review by
DatasetIndustrial VFD fault and alarm codes by brand

What the source says

ALARM 63, Mechanical brake low

files.danfoss.com, retrieved 2026-09-01

Where each value comes from

The value above is stated away from the sentence quoted with the answer, so the passage that states it is shown here too.

Cause

The actual motor current has not exceeded the release brake current within the start delay time window.

— all from files.danfoss.com, retrieved 2026-09-01

Source

Last verified against source: . Due for re-check by . This page as Markdown · OKF bundle · full dataset as JSON.