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Riesgo: G43/H: Incorrect length compensation alarm

Activating the wrong length H or not activating it can cause a collision in Z.

For reference only: syntax changes with the control, the post-processor and the machine parameters. Check the official manual and run a simulation before cutting. Legal notice.

Family
Common risks
Machine
Milling, Mill-turn
Risk
High
Example
T3 M06 / G43 H03 Z50
E.g.:
T3 M06 / G43 H03 Z50

Machine: Milling, Mill-turnRisk: High

Fanuc · Haas · Heidenhain · Siemens · Fagor

  • Fanuc: Check that T, H and the tool table match.
  • Haas: On Haas, Tn M06 followed by G43 Hn is common.
  • Heidenhain: Equivalent: a correct TOOL CALL and a validated tool table.
  • Siemens: Equivalent: D/length offset and active channel tool call.
  • Fagor: Equivalent: active tool offset and correct table.

Related:

Other codes in Common risks

Riesgo: G90/G91 Alarm for incorrect absolute/incremental mode
See the full list of G and M codes

Frequently Asked Questions (FAQ)

What does Riesgo: G43/H mean in a CNC program?

Activating the wrong length H or not activating it can cause a collision in Z. In the catalogue it appears as "Incorrect length compensation alarm", within the Common risks family.

Can you give me an example of Riesgo: G43/H?

T3 M06 / G43 H03 Z50 — Activating the wrong length H or not activating it can cause a collision in Z.

Which other codes is Riesgo: G43/H combined with?

In practice Riesgo: G43/H appears alongside these codes: G43/G49, M06, G53. It is worth reading them together, because the state one leaves behind conditions what the next one does.

Which machines use Riesgo: G43/H?

Riesgo: G43/H is used in: Milling, Mill-turn.

What should you watch out for with Riesgo: G43/H?

High risk: a mistake here can cause a crash, a broken tool or an out-of-tolerance part. Simulate the program and dry-run it before cutting.

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