Mitsubishi Electric 600M Series Error PR0461: File I/O

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

Error codePR0461

File I/O indicates that the system failed to read a machining program file, and may have damaged stored memory data if not handled properly. The manual's first action is: “Output the program and all other tool data and work offset data, then format the memory.”

Model
Mitsubishi Electric 600M Series
Display shows
File I/O (PR0461)
Type
Error code
Source
Manual p. 487

What PR0461 means

File I/O p. 487

Common causes

  • A file of the machining program cannot be read. p. 487
  • If this error occurs during memory operation, the program stored in the memory may be destroyed. p. 487
  • When using the FD, replace the floppy disk. p. 487
  • During IC card operation, confirm that the IC card is correctly inserted. p. 487

What to do

  1. Output the program and all other tool data and work offset data, then format the memory. p. 487

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

If PR0461 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”
Open the manual at page 487 All 600M Series error codes Manual details & download

This page summarises what the manufacturer’s manual says about PR0461; 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.