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How to safely power up an ald OSAI 10 CNC Control after 10 years idle? (manual)

#1

11:29 04/09/2026

Anonymous32110799

Threads: 7

Posts: 8

Last week, I finally picked up an old milling machine at an auction that had been sitting idle in a warehouse for about ten years. I plan to set it up in the garage for my projects, but it turns out it has an old Osai 10 Series control system installed, and I have no idea how to properly connect it to the power supply so I don’t burn anything out on the very first startup.

#2

04/09/2026

Anonymous32110799

Threads: 7

Posts: 8

Could you tell me what the specific grounding and input voltage requirements are for power supplies in this series? I’m worried I might mess up the phases. Or maybe I could find a manual online? And is it necessary to use the original cables for the I/O interface, or can I solder something myself if I find a pinout diagram online, since the original wires are in terrible condition—all frayed?

#3

04/09/2026

Anonymous32113425

Threads: 1

Posts: 7

Cheers! These stands are excellent finds. If you set them up correctly, they're very durable. When it comes to the electrical system, the most important thing is not to skimp on the grounding. Old electronics often start malfunctioning for no apparent reason due to electromagnetic interference. The voltage is standard, but it's better to check each module separately before you get started. You can solder the cables yourself, no problem. I did the same when I restored a similar machine. Btw, I found all the technical information I needed, including the wiring diagrams and voltage information, on manualmachine.com . There's a full manual for installing the tenth series, and it's the easiest to understand. Just make sure to use shielded wire to avoid problems. Also, what is the condition of the battery that stores the parameters? If it's dead after 10 years, a bunch of errors may appear after turning it on, so it's better to do a check with a multimeter right away while the case is open.