Vast XXT Qualification Err

[[ZE...]]

So my sister plant has a contura with an XXT articulating head, and to be honest i know very little about the inner workings of the XXT system.
They recently had their machine pass its yearly Zeiss calibration, but when they go to do their daily calibration it stops during the master probe run and gives them this "184 probing with sensor set not possible" err.
Do any of you know what this err means?

Roberto Flores | 04-12-2018 05:14 AM |

[[Ri...]]

It would appear there is a problem with the sensor. Call the service hotline and they should be able to quickly diagnose the problem.

[[Ke...]]

Roberto,
We are currently having a similar issue, what was the solution for this?

[[Ri...]]

Ken, the first thing I would do is call Zeiss Service Hotline. Have the exact text of error message in the Status Window ready. When you get the tech on the line ask him what this message means. The Status Window messages are from the controller and red messages indicate there's a problem somewhere that's keeping the controller from doing it's job. It could be mechanical or it could be software. This specific message makes me suspicious of the XXT being damaged but that's just a WAG. The tech will be able diagnose this very quickly and provide an effective solution. Good luck

[[Ke...]]

Thanks for the reply, Richard. Sorry for the late update, Roberto. Zeiss service originally thought the issue could be resolved with a simple RDS calibration but decided doing it remotely would be risky in the event that it didn't pass. A tech was scheduled in, RDS calibration ran fine but the problem still persisted. The machine would fault out on the 12th angle of the CAA calibration and also during program runs that required head rotations. We ended up replacing the RDS-CAA-C head which resolved the CAA calibration and run problems.

New issue, the replacement RDS when used with CAA has double the deviation, .0005" to my previous head when a common feature (master sphere) is measured after calibration, using angles (0,0) , (0,-90) , (0,90) , (90,90) , (180, 90). After squaring the head within 8 microns over 200 mm, (squareness is the key to accuracy for the RDS-CAA) the accuracy issue persisted. The service tech agreed this was excessive but Zeiss has no acceptance requirement for the CAA so no additional support was given. It was suggested by the tech that I put in another service request for the excessive deviation so another head and tech can be sent out to resolve the issue. Service request has been submitted but denied without additional PO to cover the additional charges with no guarantee that they will get back within the .0002" deviation my original head would hold. nicht annehmbar