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FANUC Alarm SPOT-211 — PAUSE Backup not closed …-both guns

Manufacturer wording — PAUSE Backup not closed %s-both guns
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC SPOT-211 (“PAUSE Backup not closed …-both guns”): BU=* was specified in the SPOT instruction for backup state before the weld, but the backup was opened at the time the instruction was executed. First check: Make sure that the backup is closed when using the BU=* command.

Updated 2026-09-17 · LogrobotLM reference

Description

BU=* was specified in the SPOT instruction for backup state before the weld, but the backup was opened at the time the instruction was executed.

Remedy

Make sure that the backup is closed when using the BU=* command. Edit the BU=* to BU=C, or insert a BACKUP=CLOSE statement prior to this statement.

Related codes

SPOT-190PAUSE Bad Pressure (EP=…)-gun 2SPOT-191PAUSE Undefined Pressure (EP=*)-gun 2SPOT-212PAUSE Iso contactor fault …-both gunsSPOT-213PAUSE Water saver OK fault …-both guns

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 →