SRVO-025: Motn dt overflow
The motion command computed for the axis was too large for the servo system to accept - an internal command overflow rather than a mechanical fault.
What it means
The motion command computed for the axis was too large for the servo system to accept - an internal command overflow rather than a mechanical fault. Rare, and FANUC treats it seriously: the remedy path leads to their service organization.
Common causes
Ranked by what technicians most often find, most likely first.
- Internal motion command fault - software-side, not typically caused by anything a tech did at the pendant.
How to fix it
- Cold start: power off, hold SHIFT+RESET on the pendant, power on while still holding.
- If it recurs, run the Diagnostic Log function (FNCT > Diagnostic log) BEFORE doing anything else, take an image backup, and contact FANUC service with both. The diagnostic data captured immediately after the event is what makes the case solvable.
Quick facts
- Category
- Servo
- Affected series
- R-30iB; R-30iB Mate; R-30iB Plus; R-30iB Mate Plus
- Alarm family
- SRVO