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FANUC Controller
Program/G-code · Intermediate · 5-30 minutes
Fanuc 272 - High speed skip data error
Alarm 272 occurs when the high-speed skip function (G31) is used incorrectly or when the control cannot process skip signal data properly. This is typically caused by programming errors in G31 blocks, missing skip signal configuration, or attempting to use high-speed skip features without proper parameter setup or hardware connections.
272
Fanuc 272 - High speed skip data error
HIGH SPEED SKIP DATA ERROR
Fanuc PS program alarm 272: HIGH SPEED SKIP DATA ERROR. This alarm is triggered by an illegal or incorrectly formatted command in the part program, or a programming condition that the Fanuc control cannot execute.
Root Cause Summary
Alarm 272 occurs when the high-speed skip function (G31) is used incorrectly or when the control cannot process skip signal data properly. This is typically caused by programming errors in G31 blocks, missing skip signal configuration, or attempting to use high-speed skip features without proper parameter setup or hardware connections.
Safety
- Verify corrected program or parameters before resuming machining
Causes and Fixes
- 1
Locate the line number where alarm 272 triggered and examine the G31 command block in your part program.
- 2
Verify G31 syntax follows format: G31 X__ Y__ Z__ F__ (with valid axis destinations and feedrate specified).
- 3
Check that at least one axis move is programmed with G31 - a G31 block without axis movement will trigger this alarm.
- 4
Ensure no conflicting G-codes are active in the same block or modal group (verify no G00, G01, G02, G03 in same block as G31).
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Seeing another alarm with this one? Enter the code.
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