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FANUC Alarm SRVO-275 — SERVO NTED2 status abnormal

Error
Hardware
emergency stop and dual safety chains
Controllers
R-J3iB / R-30iA / R-30iB
FANUC class
SERVO
Hardware family
FANUC emergency stop, pendant and dual safety chain alarms

FANUC SRVO-275 (“SERVO NTED2 status abnormal”): T2 mode is not permited to move robot First check: Change mode switch to T1 ot AUTO

Updated 2026-10-22 · LogrobotLM reference

Description

T2 mode is not permited to move robot

Remedy

Change mode switch to T1 ot AUTO

Field diagnosis

Chain alarm on channel 2 of the deadman switch signal.

What to check

  • Same procedure as SRVO-274: deadman switch released then firmly gripped again, NTED circuit, teach pendant, cable.
  • Release with RES_1CH, then RESET.
  • Note: Both channels faulted simultaneously: teach pendant or cable, not the operator.

Related codes

SRVO-274SERVO NTED1 status abnormalSRVO-003SERVO DEADMAN switch releasedSRVO-206SYSTEM Deadman switch (SVEMG abnormal)SRVO-273SERVO SVDISC2 status abnormalSRVO-276SERVO Disable on T2 modeSRVO-277SYSTEM Panel E-stop(SVEMG abnormal)

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 →