Delta IA-CNC_Milling Error 431C: Spindle polarity error

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

Error code431C

Spindle voltage output does not match the motor rotation direction. The manual's first action is: “Check whether the spindle encoder OA/OB wiring is correct.”

Model
Delta IA-CNC_Milling
Display shows
Spindle polarity error (431C)
Type
Error code
Source
Manual p. 424

What 431C means

Spindle polarity error p. 424

Common causes

  • Spindle voltage output does not match the motor rotation direction. p. 424

What to do

  1. Check whether the spindle encoder OA/OB wiring is correct. p. 424

Before you service the product, read the safety instructions in the manual p. 3.

If 431C is still not resolved

  • Contact service / dealer p. 3
    “Refer to the pin assignment when wiring.”
Open the manual at page 424 All IA-CNC_Milling error codes Manual details & download

This page summarises what the manufacturer’s manual says about 431C; 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 Delta. Found a mistake? Report an error.