Robotics in Manufacturing
SRVO-091

SRVO-091: CRCERR alarm (track encoder data corrupt)

Line-tracking mirror of SRVO-069: conveyor encoder data arrived corrupted.

What it means

Line-tracking mirror of SRVO-069: conveyor encoder data arrived corrupted. Same channel, same diagnosis as SRVO-090.

Common causes

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

  1. Same suspect list as SRVO-090: connections, shielding, cable, encoder, I/F board.

How to fix it

  1. Work the SRVO-090 remedy sequence. 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