It has been a while since I have had to replace a hard drive like this, but if I remember correctly, the procedure when installing a new hard drive is:
1) Install Hard Drive from Siemens (preloaded with Base and NCX level software)
2) Load Cincinnti MAI software
3) Restore Machine Dependent Data backup (M1Y-****.bck)
4) Enter Option code from Siemens
I would always then verify that the options content and machine settings are correct.
Since the fault (7) indicates you have an option issue:
Did you enter the Option Code from Siemens accurately?
Was there any problem with the Machine Dependent Data restore process?