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amada 2415 A2 alarm - 4063

amada 2415 A2 alarm - 4063

amada 2415 A2 alarm - 4063

I been having on going issue with my laser`s PSU (Amada 2415 alpha 2 C1500B 1997 )

the story starts with the machine having other issues then being repaired, and when I had the tec guy out who did the repairs, he said to me that it would be a go idea to fix this power unit as well.
the machine was working fine for a month, we had some down time so I got him out to take the power unit and do the repairs.
since him done the repairs the machine will not go start up it gets to sequence 20 and shuts down
on the PSU 2 there is lights led1 1 2 3 light in position 1 turns on
led2 VI RFI RFV OH VC DCH light in position VC turns on

on PSU 1 light VC in on

how ever if I swap the power units around, on the PSU the led1 under DCI light 3 turns on

so my question is what do the 1 2 3 lights mean under the DCI and could the inverter be causing the problem.

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