After two expensive service calls yielded nothing and learning who not to send circuit boards for testing I finally am getting somewhere with a machine that has been down for over a year. Sending out boards one at a time it was finally discovered The Main CPU board A16B-2200-0900 had a bad daughter card on it. It is A20B-2900-0293 plugs into a slot labeled macro and is referred to as a 256KB Rom Module.
Bought a replacement card, but here is the problem, it needs to programmed and supposedly only Fanuc can do it with information provided by the machine manufacturer (Star). It has been months and Star who is known for spotty customer service hasn't even identified what I need. I think I am on my own. I reloaded all the parameters the machine acts better than it did, does boot up without alarms but nothing will move. It was my understanding the ladder diagram needs to be programmed on the ROM chip. What functioning I have maybe is because it is using what information is on the ROM chip that came from a non similar machine.
The question is would it be possible to swap out the two ROM chips on the new daughter card for my old ones in the picture? The cards appear identical. Also what information is stored on those ROM chips?
Bought a replacement card, but here is the problem, it needs to programmed and supposedly only Fanuc can do it with information provided by the machine manufacturer (Star). It has been months and Star who is known for spotty customer service hasn't even identified what I need. I think I am on my own. I reloaded all the parameters the machine acts better than it did, does boot up without alarms but nothing will move. It was my understanding the ladder diagram needs to be programmed on the ROM chip. What functioning I have maybe is because it is using what information is on the ROM chip that came from a non similar machine.
The question is would it be possible to swap out the two ROM chips on the new daughter card for my old ones in the picture? The cards appear identical. Also what information is stored on those ROM chips?