Finally some good news, Amada have been out and have done a great job fixing problems, and showing us around the machine,
none of the beds were moving, so one fault was the bed not hitting a sensor so basically didn't know where the bed was in correspondence with the chain, the other bed has a faulty plc which stops the bed moving up and down.
a problem with nitrogen cutting turned out to be we need 3 inputs into the machine, purge, low pressure, and high pressure, we only had low pressure and a purge so the machine was throwing alarms when anything over 10bar of nitrogen was being cut, problem will be fixed by installing a third pipe with 25bar allowing the machine to cut with high pressure nitrogen
can finally see the bright side haha