Help circuit board
09 January 2013, 08:37 PM
#1
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Help circuit board
My ramp blew its 3 phase to single phase converter up to day and its stuck on its locks ATM.
Does anyone know what 2 parts these are and what voltage they should be.
Details of converter
240 to 415 converter
Does anyone know what 2 parts these are and what voltage they should be.
Details of converter
240 to 415 converter
09 January 2013, 08:58 PM
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They're protection components - more than likely they've gone bang because something else on the board has failed. If they're in series with the mains supply, then they'll get fried if something in the input stage of your power supply fails short circuit.
Can you provide any more details of what the board is and any part numbers you can read off the failed components?
Can you provide any more details of what the board is and any part numbers you can read off the failed components?
09 January 2013, 09:02 PM
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The wires got damaged to it so I rewired it wrong lol and boom it went. Hopefully these failed before anything else I'm not sure what you are wanting mate
09 January 2013, 10:31 PM
#6
To the OP:
From what I can make out, those things are labeled 20SP-012 on the actual component, and TH30_ on the PCB, which would make them thermistors. That alone won't be enough to tell you exactly exactly what they are though, as you'd still need to know what value they're supposed to be. The remainder of the burnt out writing might have answered that. The bigger worry for me though is seeing the damage you've already managed to do just wiring that thing up, how much more are you likely to do if you tried to solder replacement parts onto the PCB, assuming you ever got as far as identifying and sourcing them. If you like living dangerously that much, can't you just take up base-jumping or russian roulette like everyone else?
From what I can make out, those things are labeled 20SP-012 on the actual component, and TH30_ on the PCB, which would make them thermistors. That alone won't be enough to tell you exactly exactly what they are though, as you'd still need to know what value they're supposed to be. The remainder of the burnt out writing might have answered that. The bigger worry for me though is seeing the damage you've already managed to do just wiring that thing up, how much more are you likely to do if you tried to solder replacement parts onto the PCB, assuming you ever got as far as identifying and sourcing them. If you like living dangerously that much, can't you just take up base-jumping or russian roulette like everyone else?
10 January 2013, 05:14 PM
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It was only the wrong wire lol that I touched in the wrong place. The part number is bang on. Rang the manufactures today but they didn't tell me the value of them..
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11 January 2013, 01:19 PM
#10
The blown part at the forefront looks like a ceramic disc capacitor.
Usually these are used for smoothing circuits on small PWM/electronically driven motors to stop radio/circuit interference (i.e a small fan motor, not a ramp). Never seen one blow like that before.
At a guess I think there maybe more damage on that PCB that just those components...look at all the resitors for any small brown/black staining or cracks, same with the PCB itself.
Usually these are used for smoothing circuits on small PWM/electronically driven motors to stop radio/circuit interference (i.e a small fan motor, not a ramp). Never seen one blow like that before.
At a guess I think there maybe more damage on that PCB that just those components...look at all the resitors for any small brown/black staining or cracks, same with the PCB itself.
11 January 2013, 01:32 PM
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The blown part at the forefront looks like a ceramic disc capacitor.
Usually these are used for smoothing circuits on small PWM/electronically driven motors to stop radio/circuit interference (i.e a small fan motor, not a ramp). Never seen one blow like that before.
At a guess I think there maybe more damage on that PCB that just those components...look at all the resitors for any small brown/black staining or cracks, same with the PCB itself.
Usually these are used for smoothing circuits on small PWM/electronically driven motors to stop radio/circuit interference (i.e a small fan motor, not a ramp). Never seen one blow like that before.
At a guess I think there maybe more damage on that PCB that just those components...look at all the resitors for any small brown/black staining or cracks, same with the PCB itself.
I had a similar fault on a circuit, much smaller scale and voltage, the cause was a blown transistor. the disc capactor served the purpose of a shunt.
The transitor triggered a motor to run in on direction, then triggered the motor to run in reverse. with the cap blown, there was no shunt to get the motor to run the other way. once a replcement transistor and capacator were installed it all worked ok
One to think about?
Edit
A quick google shows the GT30J301's shown are motor control switching transistors
Mart
Last edited by mart360; 11 January 2013 at 01:35 PM.
11 January 2013, 06:15 PM
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I'm absultly lost with it guys, I paid £450 for it. I'm been on the phone to the company a load of times they won't help me cause hey savy they would just switch the board.
My unit actually has 3 phase which my compressor runs off. I have a spare single phase compressor with 3hp motor which my ramp has. If I don't get this part I could do this..
My unit actually has 3 phase which my compressor runs off. I have a spare single phase compressor with 3hp motor which my ramp has. If I don't get this part I could do this..
11 January 2013, 09:55 PM
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Live and neutral the wrong way round, thats a big surge lol
the cap has done its job i'd say
Mart
11 January 2013, 11:03 PM
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Yup I wired it wrong.
It actually still works it has an error code on the screen saying low voltage. Check volts going in and it's 240. Checked coming out nothing.
It actually still works it has an error code on the screen saying low voltage. Check volts going in and it's 240. Checked coming out nothing.
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