Robotics in Manufacturing
SRVO-179

SRVO-179: Motor torque limit

Warning: the axis hit its torque limit and the motor is running speed-restrained.

What it means

Warning: the axis hit its torque limit and the motor is running speed-restrained. Operation continues; the alarm is telling you the axis is working at its ceiling.

Common causes

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

  1. Load or motion demanding more torque than the axis limit allows.

How to fix it

  1. Usable as-is - the restraint is automatic.
  2. But relax the condition (load, speed, acceleration) so it stops posting; an axis living at its torque ceiling is an axis wearing out faster.

Quick facts

Category
Warning
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