razoredgeknives
Plastic
- Joined
- Sep 6, 2019
Hey guys.
So I wired up a North America RPC and ran it to my machine, and the machine powers on fine and wheel/spindle seems to operate fine. But my oil sump pump at the base of the column isn't pumping oil onto the ways and lead screws so I'm trying to diagnose what the issue could be.
First thing I did was check the voltage on the supplying plug w/ the machine turned on, I am getting 140v on one of the legs. The other one seems dead. I was assuming that this was a 115v pump but after pulling off the cover I found it's supposed to be 220v so this is probably the issue.
I started tracing the power from the original 3 phase input power. Here is the board and wiring schematic:
What I traced the issue to seems to be the transformer (T-1) directly after the input power fuses. H1 and H2 are the input power and I'm getting about 245v between both of them total. When I check the output power side X3 and X1 I'm only getting 140v between them. What is weird is when I check the individual terminals on X3 or X1 and put the other lead on the ground it's only measuring about 7-8v each. So I don't understand how individucally it can be 7-8v but together it can be 140v - go figure. Maybe it's my power meter?
Anyway, do you think the transformer is the issue?
So I wired up a North America RPC and ran it to my machine, and the machine powers on fine and wheel/spindle seems to operate fine. But my oil sump pump at the base of the column isn't pumping oil onto the ways and lead screws so I'm trying to diagnose what the issue could be.
First thing I did was check the voltage on the supplying plug w/ the machine turned on, I am getting 140v on one of the legs. The other one seems dead. I was assuming that this was a 115v pump but after pulling off the cover I found it's supposed to be 220v so this is probably the issue.
I started tracing the power from the original 3 phase input power. Here is the board and wiring schematic:
What I traced the issue to seems to be the transformer (T-1) directly after the input power fuses. H1 and H2 are the input power and I'm getting about 245v between both of them total. When I check the output power side X3 and X1 I'm only getting 140v between them. What is weird is when I check the individual terminals on X3 or X1 and put the other lead on the ground it's only measuring about 7-8v each. So I don't understand how individucally it can be 7-8v but together it can be 140v - go figure. Maybe it's my power meter?
Anyway, do you think the transformer is the issue?