Robotics in Manufacturing
SRVO-124

SRVO-124: Check HardStop if Hit

Companion alarm to SRVO-024: a move error excess occurred on a group that isn't calibrated, so the controller adds this warning - with no calibration it can't be sure the axis didn't reach a hard stop.

What it means

Companion alarm to SRVO-024: a move error excess occurred on a group that isn't calibrated, so the controller adds this warning - with no calibration it can't be sure the axis didn't reach a hard stop.

Common causes

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

  1. SRVO-024 conditions on an uncalibrated group.

How to fix it

  1. Physically inspect for hard-stop contact before anything else - that's what the alarm is asking.
  2. Then work the SRVO-024/SRVO-023 checklist, and complete calibration so the controller can supervise limits properly.

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