Mitsubishi Electric 600M Series Error PR0042: Meaningless H code

CNC milling machine · taken from the manufacturer’s manual, pages cited

Alarm codePR0042

An H code other than H0 was used independently during tool length offset. The manual's first action is: “Reconsider the program.”

Model
Mitsubishi Electric 600M Series
Display shows
Meaningless H code (PR0042)
Type
Alarm code
Source
Manual p. 478

What PR0042 means

Meaningless H code p. 478

Common causes

  • An H command other than H0 was commanded independently during tool length offset. p. 478

What to do

  1. Reconsider the program. p. 478

Before you service the product, read the safety instructions in the manual p. 4.

If PR0042 is still not resolved

  • contact service / dealer p. 5
    “Do not change the fixed cycle program without prior consent from the machine manufacturer.”
  • contact service / dealer p. 5
    “Do not turn OFF the NC a”

This page summarises what the manufacturer’s manual says about PR0042; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Mitsubishi Electric. Found a mistake? Report an error.