Robotics in Manufacturing
SRVO-084

SRVO-084: BZAL alarm (track encoder battery zero)

Line-tracking mirror of SRVO-062: the battery backing the conveyor encoder's absolute position is dead or disconnected.

What it means

Line-tracking mirror of SRVO-062: the battery backing the conveyor encoder's absolute position is dead or disconnected. Same disease, different encoder.

Common causes

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

  1. Backup battery for the tracking encoder depleted or disconnected.
  2. Battery cabling fault.
  3. Failed encoder.

How to fix it

  1. Work the SRVO-062 BZAL remedy on the tracking encoder: battery, then cabling, then encoder.
  2. Follow with the pulse-establishment step (SRVO-097 will ask for encoder rotation). Power-cycle to clear.

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