Robotics in Manufacturing
SRVO-083

SRVO-083: CKAL alarm (track encoder clock)

Line-tracking mirror of the encoder clock fault: the rotation counter clock inside the conveyor encoder is abnormal.

What it means

Line-tracking mirror of the encoder clock fault: the rotation counter clock inside the conveyor encoder is abnormal. Check for phantom status first, then it's an encoder replacement.

Common causes

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

  1. Phantom alongside SRVO-090/091/092 (the tracking communication trio).
  2. Genuine tracking encoder failure.

How to fix it

  1. If SRVO-090/091/092 appear with it, work those first.
  2. Otherwise replace the motor/encoder. 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