Alarm 166- Y return margin too small TM-1

[robard]

Have been having alarm 166 (Y return margin too small) error upon zeroing all axis on startup. I have replaced the mechanical Y axis limit switch to no avail. I checked the switch connections for tightness as well as the servo-motor connectors. I have had this problem before and cleaned the limit switch and it solved the problem but not this time. I also checked the arm that contacts the switch to trigger it and it appeared tight and not bent or damaged. Waiting on my HFO to respond but I though I throw this out on the forum to see if anyone has encountered this problem and found the solution. Thanks in advance.

Robin

[Haas_Apps]

If you have replaced the switch then the grid offset should be reset. The value is in encoder counts and should be between 1/8 to 7/8 of a revolution.

[robard]

Thanks for the quick response! I do not know anything about the grid offset or how to set this. I suppose this is done through parameters and settings. Would you be so kind as to elaborate on how I do this.

Thanks, Robin A.

[Haas_Apps]

This is not really my area of expertise. I would suggest that you call the Haas Factory service department at 805-278-8500 and they should be able to help walk you through it.

[Haas_Apps]

Robard,
I have been told by the service engineer that he tried to send you an email and it did not work. Can you please email me and I will forward his email to you.

wreilly@haascnc.com

[robard]

done, thanks