Robotics in Manufacturing
SRVO-082

SRVO-082: DAL alarm (track encoder not connected)

Line-tracking alarm: the controller can't see the conveyor encoder at all - a connection problem until proven otherwise.

What it means

Line-tracking alarm: the controller can't see the conveyor encoder at all - a connection problem until proven otherwise.

Common causes

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

  1. Connection cable loose at either end (line tracking I/F board or encoder).
  2. Cable shield not grounded at the grounding plate.
  3. Failed tracking cable, encoder/motor, or I/F board.

How to fix it

  1. Reseat the cable at both ends.
  2. Verify the shield is landed on the grounding plate.
  3. Then replace in order of cost: cable, motor/encoder, I/F board. 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