Robotics in Manufacturing
SRVO-114

SRVO-114: Singularity Detected

The robot hit a singularity during motion - a pose where the wrist axes align and Cartesian motion math breaks down.

What it means

The robot hit a singularity during motion - a pose where the wrist axes align and Cartesian motion math breaks down. Servo-side sibling of MOTN-023: same geometry problem, caught during execution. It's a path problem, not a hardware problem.

Common causes

Ranked by what technicians most often find, most likely first.

  1. Programmed path passing through or too near a wrist singularity (J5 near zero with linear/circular motion).

How to fix it

  1. Re-teach the offending points to keep the wrist away from the singular pose.
  2. Use WJNT (wrist joint) motion option where the path allows - note tool orientation isn't held through the move.
  3. Or switch the motion type to JOINT through the singular region.

Quick facts

Category
Servo
Affected series
R-30iB; R-30iB Mate; R-30iB Plus; R-30iB Mate Plus
Alarm family
SRVO

Related codes

Verified against FANUC documentation (B-83284EN-1).Last reviewed: 2026-07-09.Editorial process