Hello,
I have Okuma LR-15, 1996. Problem with machine is alarm 202 APA check data. Machine sometimes work perfect per minutes, per hours or per days, and after that machine show alarm 202. I have all books of machine, and description of this alarm is "202 APA check data - Mismatch between the upper digits read from the position encoder and those calculated from the lower digits".
Service told me electronics is okay. They doubt about parameters of machine. I don't have parameters. Please help me.

Best regards,
Brzika Kenan