Hi Just spotted your post and the following may be of help. To change any parameters you need to set the mode to MDI and then press the PARM key. On the second page set PWE (parameter write enable) to 1. The machine will throw an alarm, but if you press the PARM key again it will take you to the par...

Finally got around to looking at the z axis issue where the drives were tripping out during rapid moves. Very careful realignment of the ball nuts has now solved this problem. The machine can now run at 5000mm/min in all three axes.

Just to report back on the final settings which now work for my machine, in case they may help anyone else. The following parameters are set: 4 to 7 set to 100 35.7 set to 1 100 to 103 to 4 504 to 507 set to 8333 (the original setting), 518, 519, and 521 set to 5000 520 set to 3000. 8n21 to -128 8n4...

Hi all. I've been experimenting over the weekend to see if I could get the Triac to run without the 401 alarm and some progress has been made. I have worked on the assumption that I would try changing parameters before looking too deeply into the electrics and electronics which are not my strong poi...

I checked the 500 series parameters and they look okay. The only one I am uncertain about is 508, which is labeled in the list as P-------- and there is no other information on it. 508 is currently set to 0. The other parameters listed as P-------- in the parameters sheet, have values assigned to th...

Hi Martin, none of the axes jumped at that point as far as I can remember. I have the original list of the parameters for the machine and I will recheck the all the 500 parameters again just to be sure. Good point on the 453 diagnostics, there's a good chance I may not have set that to 1. I check ev...

Having successfully fixed the issue with the tool changer, I have now uncovered an issue with the drives on my Triac Fanuc. I have wiped the controller memory and carefully input all of the parameters again, but the alarm persists. When the controller is started up the green DRDY led on the axis dri...

Spoke with Martin who was very helpful and suggested resetting the 451 diagnostic parameter and then setting diagnostic 453 to zero. Magically this has fixed the problem. The tool changer now indexes properly.

Many thanks Martin.

Best regards

Trevor

I have recently acquired a Fanuc Triac Serial No. 51220B which had belonged to Neath College in Wales. I am having issues with the ATC indexing. The symptoms are as follows: If I run a tool change in MDI, the carousel only indexes half way between pockets. I have checked the ATC sensor and it is pro...