FANUC Alarm ISD-022 — WARN Premature switching req (ISD…)
Manufacturer wording — WARN Premature switching req (ISD%d)
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC ISD-022 (“WARN Premature switching req (ISD…)”): This warning is posted when the inactive meter could not finish reloading before the active meter reaches the Pre-Near-Empty position. First check: - Make sure the material supply pressure is high enough.
Updated 2026-09-17 · LogrobotLM reference
Description
This warning is posted when the inactive meter could not finish reloading before the active meter reaches the Pre-Near-Empty position. This is where the sub-meter should start adjusting the pressure value for meter switching. This condition is usually caused by one or more of the following:
Remedy
- Make sure the material supply pressure is high enough. - Make sure Pre-Near-Empty location is set properly. - Make sure PLC sends RELOAD_OK on time.
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 →