conquest 42 won't power up suddenly

zschary · Aug 1, 2016

The machine was running a job fine.. then it froze, no buttons worked but the control was on.. i turned it off, now the machine has power, but the control is totally off.. i checked some internal breakers etc.. anything thats easy i am missing?

lube was a bit low, i filled it

need some help.. thanks..
:confused:

Dave K · Aug 1, 2016

Has the mylar over the buttons been replaced recently? I had an issue where a cheap mylar replacement caused a button to stick in the "depressed" position, causing it to appear to be frozen.

zschary · Aug 1, 2016

no.. it did freeze, but I would think it would at least power up the control.. I see nothing.. only main power to machine.. fanuc is dead entirely..

Guest · Aug 1, 2016

What is the exact control? First place I would look is the power supply out puts.

zschary · Aug 1, 2016

Dualkit said:
What is the exact control? First place I would look is the power supply out puts.

fanuc otc

i guess yes i need to measure back there...
is there a breaker at that output? where is it?
thank you

Guest · Aug 2, 2016

If all series 0's are created equal it should just have a power supply box similar to a PC and not the circuit board type that plug with serial cables. It should just have labeled outputs that have wires connected to them, check electrical diagram for what the outputs should read. Are you really in Los Angeles? If you can't figure it out when I lived in Riverside Ca 5 years ago I knew a guy who was a CNC repairman who was not only fast and reasonable he was an 0T specialist and had a Jeep full of spare boards to quickly swap out and get you back up and running, I think I still have his card somewhere.

ifixcnc · Aug 2, 2016

If the yellow Fanuc board rack in the electrical cabinet has an black board with green rectangle plug in fuses. Check them, they have a silver flag in a small window to give an indication when they blow. If you do find one blown you will need to find out what is pulling to much current. Some machine builders give you a "care package" with extra fuses, check the document pocket in the door.

zschary · Aug 2, 2016

Dualkit said:
If all series 0's are created equal it should just have a power supply box similar to a PC and not the circuit board type that plug with serial cables. It should just have labeled outputs that have wires connected to them, check electrical diagram for what the outputs should read. Are you really in Los Angeles? If you can't figure it out when I lived in Riverside Ca 5 years ago I knew a guy who was a CNC repairman who was not only fast and reasonable he was an 0T specialist and had a Jeep full of spare boards to quickly swap out and get you back up and running, I think I still have his card somewhere.

going to try these things, but yes.. shoot me his number if you have it, if nothing else for future issues.. thank you
Zach

zschary · Aug 2, 2016

ifixcnc said:
If the yellow Fanuc board rack in the electrical cabinet has an black board with green rectangle plug in fuses. Check them, they have a silver flag in a small window to give an indication when they blow. If you do find one blown you will need to find out what is pulling to much current. Some machine builders give you a "care package" with extra fuses, check the document pocket in the door.

Great.. I will look for that.. it does have the yellow board rack.. I will look closer
thank you

Guest · Aug 2, 2016

zschary said:
going to try these things, but yes.. shoot me his number if you have it, if nothing else for future issues.. thank you
Zach

I PM'ed you his info. Could you post pictures of the control cabinet?

zschary · Aug 2, 2016

zschary · Aug 2, 2016

trying to find fuses.. there are breakers in here of course

Mattedroom · Aug 2, 2016

Seems like 99% of the time if there is no power on the fanuc side of things it's a dead fanuc power supply. What makes me wonder thou is your machine freezing up, rather than just shutting itself off. That could be a master or memory board issue. There should be a procedure for checking the power supply in the fanuc maintenance manual. I'd head that route first once the breakers and fuses have been inspected. I probably replace 1 power supply a year amongst our 20 or so machines.

zschary · Aug 2, 2016

Mattedroom said:
Seems like 99% of the time if there is no power on the fanuc side of things it's a dead fanuc power supply. What makes me wonder thou is your machine freezing up, rather than just shutting itself off. That could be a master or memory board issue. There should be a procedure for checking the power supply in the fanuc maintenance manual. I'd head that route first once the breakers and fuses have been inspected. I probably replace 1 power supply a year amongst our 20 or so machines.

Do you know if this machine has fuses? i tried to find them.. all i see are the big breakers which all look ok..
yes it did freeze first.. then i shut it off and wont come on..
thanks for the help..

Guest · Aug 3, 2016

Those pictures aren't very helpful, they need to be oriented correctly and clear. Also it would help if you took one of everything far back, then a picture of the left, center, and right walls. I think I see a dual axis drive, but don't see a black box power supply (that will have at least one green fuse for each voltage output) or a PC style power supply that has old school glass automotive style fuses. Do you have the electrical diagram book?
I have a feeling the power supply dropped one or more of the output voltages.

alphonso · Aug 3, 2016

I think your pictures show only spindle and axis drives.

Pictures of cabinet of one of my 0TC machines.

Spindle drive(left), axis drives(right), main power supply(transformer) and fuses(bottom).

Control side of cabinet, 0TC to left, relays and such in middle, main input power and fuses lower right.

0TC control, Black board on right side of pack is the control power supply, it has the green fuses, mentioned by others, below the yellow label.

Guest · Aug 3, 2016

My Fanuc OT has the same thing as Alphonso except I also have a small metal caged power supply that looks like it came out of a PC separate from the black box that has a 24vdc output to run the relay system.

zschary · Aug 3, 2016

I will take better pictures.. thanks for these I will look today at it..
some things changed recently on the power.. I had this running on a rotary phase converter before, and have now moved into a unit with three phase.. Was running fine for a few weeks.. then we started running an insert requiring a much higher sfm.. so the rpm has been running close to the 5000 max which is new for this machine.. usually would not get much over 3500.. would that have been harder on the machine and its power supply ? would it matter?
big thanks to all on this

Guest · Aug 3, 2016

If anything real 3 phase is always better. Unless you are running a prolonged heavy cut at 5K that is pegging the load meter the electrical stress from the 5k is all in the accel\decel and that is very brief. If it was too much for the machine it should blow fuses long before it damaged the power supply or spindle drive. Unless of course some numbskull put larger fuses than they should in the machine.

zschary · Aug 3, 2016

Dualkit said:
If anything real 3 phase is always better. Unless you are running a prolonged heavy cut at 5K that is pegging the load meter the electrical stress from the 5k is all in the accel\decel and that is very brief. If it was too much for the machine it should blow fuses long before it damaged the power supply or spindle drive. Unless of course some numbskull put larger fuses than they should in the machine.

right.. we shall soon see on the fuses.. but really the load was not heavy at all on the high speed cuts.. much lower than i usually run the machine with roughing cuts.. just high spindle

i will get some better pics and look into it today and send a post here.. I also ordered a fanuc maintenance manual off of ebay.. amazed i did not have one, really that part of the machine has always run flawlessly so never had a need yet to get in there..

conquest 42 won't power up suddenly

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