Robotics in Manufacturing
SRVO-030

SRVO-030: Brake on hold

Informational when it's expected: with the Brake On Hold function enabled, the brakes set every time a hold signal comes in, and this alarm announces it.

What it means

Informational when it's expected: with the Brake On Hold function enabled, the brakes set every time a hold signal comes in, and this alarm announces it. Only a 'problem' if nobody meant to enable the function.

Common causes

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

  1. Brake On Hold enabled and a hold input received - working as designed.
  2. Function enabled unintentionally.

How to fix it

  1. If Brake On Hold is intentional, no action - this is the function talking.
  2. If not, disable it in SETUP > General and cycle power.

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