Robotics in Manufacturing
SRVO-088

SRVO-088: CSAL alarm (track encoder checksum)

Line-tracking mirror of SRVO-066: the conveyor encoder's ROM checksum failed - encoder firmware corrupt, encoder replacement.

What it means

Line-tracking mirror of SRVO-066: the conveyor encoder's ROM checksum failed - encoder firmware corrupt, encoder replacement.

Common causes

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

  1. Tracking encoder ROM failure (check the 090/091/092 trio for phantom status first).

How to fix it

  1. If the communication trio is present, fix that first.
  2. Otherwise replace the encoder per the SRVO-066 approach. 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