Okura Yusoki A Series Manual page 158

OXPA can detect the difference of the internal keys between Laptop and controller.
If the internal keys are differed, the below error massage pops up.
You can not try to download wrong data files.
If the internal keys are matched, you can download.
Moreover, the below error message pops up to stop downloading when tried to
transfer to controller from a project on which [Protect system-parameter of robot by
internal key] is set to OFF.
10.11.7.2. Procedure for unlock
Caution
Such data as system parameters, servo parameters, stacking programs and
OXPA-PLCV are cleared so that do backup first following the below
procedure 1 and recover following the below procedure 6.
1. Upload all the files in robot controller to back them up.
2. Change robot type to other type on POD.
3. Cycle power at robot controller.
4. Change robot type back to originally type on POD.
5. Cycle power at robot controller.
6. Download all the files back to robot controller.
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