FANUC Alarm ARC-053 — WARN No ramp at process switch

Manufacturer wording — WARN No ramp at process switch (%s^4,%d^5)
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC ARC-053 (“WARN No ramp at process switch”): Ramping is not allowed when switching weld processes. First check: Complete the process switch first, then ramp with another arc start instruction.

Updated 2026-09-17 · LogrobotLM reference

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 →