Robotics in Manufacturing
SRVO-122

SRVO-122: Bad last ang (internal)

Internal servo alarm: the last angle update request doesn't match the current angle - internal state inconsistency, same escalation path as SRVO-121.

What it means

Internal servo alarm: the last angle update request doesn't match the current angle - internal state inconsistency, same escalation path as SRVO-121.

Common causes

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

  1. Internal software condition.

How to fix it

  1. Diagnostic Log immediately, image backup, contact FANUC - same drill as SRVO-121.

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