powering up a Miller XMT after 5 years. ramp up, or it doesn't matter?

[cyanidekid]

next week l'm powering up a Miller XMT 304 CC/CV to do some GMAW welding. I haven't had it plugged in for about 5-6 years and was thinking I should start it out at 50VAC for 30 min and ease it up to 240, it might not matter in an inverter as not many caps to recondition before the rectifier though?

I powered up a Teco N3 VFD last week after 4 years and it didn't like life. all kinds of weird shit, sounded like it was trying to run on 1 phase, at first it ran ok for 1-2 seconds then over load error coded and shut down, but subsequently just made funny noises and coded. any thoughts on that? its probably not worth serious diagnosing, but it's just so annoying when shit just decides to die on its own... ( not in an enclosure, but I kept it dry and covered)

 

[memphisjed]

How would you ramp ac power? Maybe 120 to give all the relays enough to relay at first?

 

[dana gear]

The 360 is a copy of the XMT , Open site and go to pre start up check list. All my Miller XMT tech is on Disc / print tech manuals, caps are more of a age/heat isshue.
hthttps://www.red-d-arc.com/pdf/EX360%20Service%20Manual.pdf

 

[cyanidekid]

How would you ramp ac power? Maybe 120 to give all the relays enough to relay at first?

variac, un-rectified to 130, then 240. ill definitely do that with the '40s DoAll Selectron when I power that up. thanks, dg, l'll look at that!