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FANUC Alarm SRVO-084 — WARN BZAL alarm (Track enc:…)

Warning
Hardware
line tracking encoder
Controllers
R-J3iB / R-30iA / R-30iB
FANUC class
WARN
Hardware family
FANUC line tracking encoder alarms

Manufacturer wording — WARN BZAL alarm (Track enc:%d)
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC SRVO-084 (“WARN BZAL alarm (Track enc:…)”): This alarm is issued when the battery for backing up the absolute position data for the pulse coder is not connected. First check: Refer to the description for the SRVO-062 BZAL alarm.

Updated 2026-10-22 · LogrobotLM reference

Description

This alarm is issued when the battery for backing up the absolute position data for the pulse coder is not connected.

Remedy

Refer to the description for the SRVO-062 BZAL alarm.

Field diagnosis

The line tracking encoder position backup is no longer powered.

What to check

  • Same treatment as SRVO-062, applied to the line tracking encoder: batteries, cable, reset, line reference to be redone.
  • Note: The conveyor reference must be redone after the replacement.

Related codes

SRVO-062SERVO BZAL alarmSRVO-087WARN BLAL alarm (Track enc:…)SRVO-097WARN Pulse not established(Enc:…)SRVO-082WARN DAL alarm(Track encoder:…)SRVO-083WARN CKAL alarm (Track enc:…)SRVO-085WARN RCAL alarm (Track enc:…)

Indicative field information — the robot manufacturer's manual and safety procedures always prevail. Never bypass a safety device; apply lockout/tagout (LOTO) before any physical intervention. How this reference is built →