Robicon is now Siemens. If they are old drives you might have problems, but if they are new there should be no major issues - we've done it.
However, one of my main complaints with Siemens is their documentation. It somehow manages to be both voluminous and uninformative at the same time. You should be able to get the books, but I'd suggest establishing a rapport with your local rep, both so he can point you to the right manuals and so you can call on him for assistance.