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FANUC Alarm PNT1-119 — Pulse coder communication error

FANUC PNT1-119 (“Pulse coder communication error”): This alarm is echoed to the PLC when a SRVO-068 SERVO DTERR alarm (Grp:… Ax:…), SRVO-069 SERVO CRCERR alarm (Grp:… Ax:…), or SRVO-070 SERVO STBERR alarm (Grp:… Ax:…) alarm is posted. First check: Refer to the SRVO-068, SRVO-069, or SRVO-070 alarm for the remedy.

Updated 2026-09-17 · LogrobotLM reference

Description

This alarm is echoed to the PLC when a SRVO-068 SERVO DTERR alarm (Grp:… Ax:…), SRVO-069 SERVO CRCERR alarm (Grp:… Ax:…), or SRVO-070 SERVO STBERR alarm (Grp:… Ax:…) alarm is posted. Refer to the teach pendant alarm screen for further information on the SRVO-068, SRVO-069, or SRVO-070 alarm. Refer to the SRVO-068, SRVO-069, or SRVO-070 alarm for the cause.

Remedy

Refer to the SRVO-068, SRVO-069, or SRVO-070 alarm for the remedy.

Related codes

PNT1-117Pulse coder battery low alarmPNT1-118Motor overheat occurredPNT1-120Pulse coder position compare errorPNT1-121Collision Detection (Hand Broke)

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 →