FANUC Alarm TG-012 — Bad Num ISDT in Sch … Ev…
Manufacturer wording — Bad Num ISDT in Sch %d^2 Ev%d^3
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC TG-012 (“Bad Num ISDT in Sch … Ev…”): A trigger schedule (system variable $TGSCHED[num], where "num"is the schedule indicated in the alarm text) has an event defined with an invalid process axis number. First check: Generally this alarm occurs when a process axis related option is loaded, but the process axes have not been properly setup.
Updated 2026-09-17 · LogrobotLM reference
Description
A trigger schedule (system variable $TGSCHED[num], where "num"is the schedule indicated in the alarm text) has an event defined with an invalid process axis number.
Remedy
Generally this alarm occurs when a process axis related option is loaded, but the process axes have not been properly setup. Go to controlled start and run the process axis setup from the MAINTENANCE menu.
Related codes
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 →