We have an Okumw LC 20 ( 4 axis) with a OSP 5000 control. One BDU 50 A drive is bad. Is there a way to run the machine for 2 axis till the drive is being repaired ? Also can some one tell us what the DIP switches on BDU drives (SVC card) for ? The drive shows an yellow LED (SAT) Glowing when it gives an RDiff error on the Screen. Can this be adjusted by some pots on the SVC board. Please let us know as the machine is down since the last 5 days. Please Help