Mitsubishi Electric 600M Series Error PR0291: WHILE statement error

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

Error codePR0291

The WHILE [] DO - END statement contains a logical or syntactic error. The manual's first action is: “Reconsider the program.”

Model
Mitsubishi Electric 600M Series
Display shows
WHILE statement error (PR0291)
Type
Error code
Source
Manual p. 484

What PR0291 means

WHILE statement error p. 484

Common causes

  • There is an error in the WHILE [] DO - END statement. p. 484

What to do

  1. Reconsider the program. p. 484

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

If PR0291 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 484 All 600M Series error codes Manual details & download

This page summarises what the manufacturer’s manual says about PR0291; 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.