Help with haas vf0e

[JAZZCNC]

Thanks mate, i've got an electrician friend coming round shortly to have a look. The new atx is 350 watt and the old is 200w, will this be okay? My tech said the ones they supply are 500's

Would imagine 500W is allowing for decent amount of spare overhead. 200W does sound low and probably why it's gone tits up, It's Been working flat out to keep up.
So 350W should be ok and will certainly get you working again if that is indeed the problem.

[magicniner]

Ok, so i checked the voltages today... on 5v we are getting about 1.5, and on 12v we are getting about 3.5! a tech suggested i get an atx power supply to try, so ive just been and got one from maplins. Is there anything i need to make sure i do/ dont do so i dont toast anything else?

So the company technician who diagnosed a 7k board fault needs a little more training perhaps?
;-)
I hope a PSU gets this running for you!
Regards,
- Nick

[Boyan Silyavski]

I advise you not to play with the main board, the way you are playing with 100$ breakout board. This taking it out and bringing to a guy... If you dont know what are you doing better dont touch it. I know people that have f%%%d things just by touching them not in the proper way. if you dont know how to handle sensitive equipment especially true. I have sold 1000$ board perfectly working here, luckily confirmed with video, which guys f^^^d up on the other side by not knowing how to handle it.

So i am starting to have a headache from what you say. At least make sure yo have discharged static from yourself and transport it in a anti static envelope / any pc repair shop will have that from GPU or similar . One other thing particularly disastrous for boards is to try to measure them while connected and touch sth that you should have not touched and especially disconnect sth when board is powered on.

You need electronic engineer or similar, not electrician! Apart from that you have to explain him exactly how the board is supposed to function so he understands where the problem could be.

You have to be very lucky if its only the PSU after yo handled it. I dont see how you will repair the board if it has ICs that are custom programmed in factory.

On other side everything can be repaired, luckily this machine is quite old, maybe repair will not be more than cheap element so just start finding an industrial repair solution for this board!

The most important thing is to analyse with cool head if that board has just simple elements or it has an element that could be preprogrammed with software. My local guy for example have repaired me a VFDs for which i was quoted into the hundreds just to look at it and here it cost me 15 euro.


https://en.industryarena.com/forum/c...r--210268.html

http://www.acsindustrial.com/mfrs/haas.php

http://www.industrialrepair.net/products.aspx?mpid=156

[jackpat]

I advise you not to play with the main board, the way you are playing with 100$ breakout board. This taking it out and bringing to a guy... If you dont know what are you doing better dont touch it. I know people that have f%%%d things just by touching them not in the proper way. if you dont know how to handle sensitive equipment especially true. I have sold 1000$ board perfectly working here, luckily confirmed with video, which guys f^^^d up on the other side by not knowing how to handle it.

So i am starting to have a headache from what you say. At least make sure yo have discharged static from yourself and transport it in a anti static envelope / any pc repair shop will have that from GPU or similar . One other thing particularly disastrous for boards is to try to measure them while connected and touch sth that you should have not touched and especially disconnect sth when board is powered on.

You need electronic engineer or similar, not electrician! Apart from that you have to explain him exactly how the board is supposed to function so he understands where the problem could be.

You have to be very lucky if its only the PSU after yo handled it. I dont see how you will repair the board if it has ICs that are custom programmed in factory.

On other side everything can be repaired, luckily this machine is quite old, maybe repair will not be more than cheap element so just start finding an industrial repair solution for this board!

The most important thing is to analyse with cool head if that board has just simple elements or it has an element that could be preprogrammed with software. My local guy for example have repaired me a VFDs for which i was quoted into the hundreds just to look at it and here it cost me 15 euro.


https://en.industryarena.com/forum/c...r--210268.html

http://www.acsindustrial.com/mfrs/haas.php

http://www.industrialrepair.net/products.aspx?mpid=156

Thanks for such a detailed reply, i'll admit i have no experience with processor boards... the company i took it to however is a very experienced repair shop - they deal with this sort of thing all the time and have repaired servo drive cards, I/O boards and distribution boards for us before. As for the processor board - - i guess we'll find out if i've damaged it once we fix the low voltage problem!

My "electrician" is an electrical engineer, also dealing with similar machines all the time - - he's a good friend of ours and lives just across the road from the workshop.

SO.. Last night we double checked that it was the actual psu that was dropping voltage, THEN started joining the HAAS wiring harness to the new atx psu... plugged it in to check we were getting 5v and it wouldn't work! It's just a bog standard 240V atx (machines is a 110v, but its all we could get from maplin). We didnt check the atx before hand, but all we had done was snip wires on a single plug and crimp connectors on. Plugged it into a wall socket not into actual machine.

So i guess ill try find a replacement today.

[magicniner]

The most important thing is to

.......Approach the problem logically, if there are no blown components or tracks on the board and you have proven the PSU is not delivering the correct voltages then replacing the PSU is an entirely logical next step.

An ATX PSU doesn't just deliver all the correct voltages all the time though, it has some permanent outputs but requires a logic signal back from the board to which it connects to tell it to power up fully. If the new PSU doesn't "Fire up the Quattro" then you should check to see if the board is providing the required signal telling it to turn on,
Regards,
Nick

[magicniner]

You need electronic engineer or similar, not electrician!

What you actually need is someone with the right experience, current job titles may not be clearly indicative of this :-)

- Nick

[wisrepairs]

Hi all,

i have a vf0e vmc, which as from thismorning will not power up! after speaking with the haas tech, we are 90% sure the main processor board has popped. HAAS has quoted us about 7k for the new board and a days labour... which honestly we cant afford + thats how much the machines worth.

Anyone had any exp with these boards and know if they can be repaired? today i removed it (keeping the battery connected) and took it to our local repair guy, he says theres nothing obviously wrong but he cannot test the chips on the card.

Thanks in advance for any input, im a one man shop and desperate to get this machine sorted.

best regards

jack

We can repair your Haas processor board if you ever have this issue again.
Worldwide Industrial Solutions
https://wisrepair.com/

[john swift]

even if the faulty power supply did not damage any of the boards
the odds are that the data on the hard drive, cmos RTC or eproms will be corrupted

and you will need to re install the operating system and / or machine parameters

as in this post "Rebuild Hurco Power Supply w/ PC Power Supply VMX30" for example

https://www.cnczone.com/forums/hurco...facturing.html



John

PS

note if you are replacing an old AT power supply



with a new AXT supply


the orange AT power good signal wire = the grey power good wire on the ATX supply
don't get it mixed up with the orange 3.3V ATX output wire !!

ready made adaptors are available

[magicniner]

The poor support and large charges from Haas for stuff that could be user executed put me right off their machines.

[wisrepairs]

check out our youtube channel. we video all of our repairs for our customers. we want you to know that your boards are repaired and working

https://www.youtube.com/channel/UCMb..._as=subscriber