Error codeB646
The spindle rotation speed deviates too much from the commanded value and continues to exceed allowable limits, unless Pr436/Pr476 are set to 0. The manual's first action is: “When the parameter (Pr436 and Pr476) is set as 0, the spindle rotation speed reached check will not be performed.”
- Model
- Delta IA-CNC_Milling
- Display shows
- Spindle rotation speed error too large (B646)
- Type
- Error code
- Source
- Manual p. 431
What B646 means
Spindle rotation speed error too large p. 431
Common causes
- The difference between the 1st spindle (2nd spindle) command rotation speed and feedback rotation speed is greater than the parameter Pr406 (Pr446), and continually exceeds the spindle rotation speed error check time set by parameter Pr436 (Pr476). p. 431
What to do
- When the parameter (Pr436 and Pr476) is set as 0, the spindle rotation speed reached check will not be performed. p. 431
Before you service the product, read the safety instructions in the manual p. 3.
If B646 is still not resolved
- Contact service / dealer p. 3 “Refer to the pin assignment when wiring.”
This page summarises what the manufacturer’s manual says about B646; 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.