Hy guys,

I need help with a plasma cutting machine that is controlled by a NUM 720T controller.
It has only 2 axes. The command for the torch up and down is pneumatic and it is accesed with M20 and M21.

I had a problem with the battery that is soldered on the motherboard. Someone changed it a wile ago and a pin got loose. I reatached it, but after this operation the machine waits after M20 and M21 commands aprox 45 secons.
I don't have manuals for this machine. All that i know about it i found by myself. I managed to find some manuals, but for they are for lathe. The menu of my machine is a little different. I couldn't find nothing about theese 2 commands.
I found somewere that this 2 commands are for start/stop oscilation and they are configured with G35, but the machine shows an error when i enter this G code.
The machine is quite old. It's made in '94.

Can someone help me with changing this waiting time?

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