Help VMC TRIAC

Information and questions about Denford CNC Control electronics, general electrical issues, cables, diagrams, stepper motors, drives etc...

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angel-tech
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Re: Help VMC TRIAC

Post by angel-tech » Fri 23 Mar , 2012 21:30 pm

estop button?

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Re: Help VMC TRIAC

Post by ilbiondo » Sat 24 Mar , 2012 19:25 pm

Button ok.

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Re: Help VMC TRIAC

Post by Martin » Sat 24 Mar , 2012 22:28 pm

Are the drives powered up.

See if you can turn the X axis leadscrew or if the motor is holding it.

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Re: Help VMC TRIAC

Post by ilbiondo » Sun 25 Mar , 2012 12:43 pm

I' ll try tomorrow. I don' t understand ... before BALDOR card should fail everything was ok. :cry:

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Re: Help VMC TRIAC

Post by ilbiondo » Mon 26 Mar , 2012 8:21 am

I can turn on the coolant.
I can turn the spindle.
But I can not do the homming. :?: :?: :?:

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Re: Help VMC TRIAC

Post by ilbiondo » Mon 26 Mar , 2012 11:43 am

When I try homing, I can turn the X axis leadscrew the motor isn't holding it.
What I do?

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Re: Help VMC TRIAC

Post by angel-tech » Mon 26 Mar , 2012 13:23 pm

check the supply to the drive psu, probably fuse 4.

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Re: Help VMC TRIAC

Post by ilbiondo » Mon 26 Mar , 2012 13:51 pm

I had already checked, it's ok.
Help please!!!!!

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Re: Help VMC TRIAC

Post by Denford Admin » Mon 26 Mar , 2012 14:01 pm

Are the drives powering up ? Any LED's lighting up on them - you will find the manuals for those here on the forum:
Parker I think: viewtopic.php?t=561

It may be that when the Eurocard failed, it caused a failure on the rack - maybe also the drives as they share the same backplane.
Check around for burnt tracks/fuses on the rack system.

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Re: Help VMC TRIAC

Post by angel-tech » Mon 26 Mar , 2012 14:33 pm

on that model, does the second board next to the baldor board supply dc to the control logic, or enable the drives somehow.?

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Re: Help VMC TRIAC

Post by Denford Admin » Mon 26 Mar , 2012 14:38 pm

AFAIK the 2nd daughter board is just additional IO and the isolated spindle analogue

I don't remember seeing or scanning any information on that card :?

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Re: Help VMC TRIAC

Post by ilbiondo » Mon 26 Mar , 2012 14:39 pm

Eurocard failed probably because I replaced the battery with a wrong. :oops:
Before everything was ok just could not remember the tool.
Fuses on the axis cards are ok.

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Re: Help VMC TRIAC

Post by angel-tech » Mon 26 Mar , 2012 14:49 pm

is there 24v on the drives

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Re: Help VMC TRIAC

Post by Denford Admin » Mon 26 Mar , 2012 14:52 pm

If the drives aren't been energised then you need to trace that fault from the diagrams and the manuals.
eg:
viewtopic.php?f=54&t=3068
viewtopic.php?f=54&t=2264

Is the enable signal changing when you release estop - I'm not sure what will exactly happen but power should be applied to the axes drives...

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Re: Help VMC TRIAC

Post by ilbiondo » Mon 26 Mar , 2012 15:03 pm

the 24volts DC is present on the backplane. wires 60 & 61.
I checked the 3 x 20mm fuses on the backplane and are ok

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Re: Help VMC TRIAC

Post by angel-tech » Mon 26 Mar , 2012 16:01 pm

make sure the drives are fully pushed into the sockets.

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Re: Help VMC TRIAC

Post by ilbiondo » Wed 28 Mar , 2012 8:00 am

When i try homing the X axis baldor card writes "H"
When i try homing the Y axis baldor card writes "8"
When i try homing the Z axis baldor card writes "8"

I checked DC on terminals shown on the picture: is not present.
I checked all fuses in the axis card and in backplane: are ok.
Attachments
ASSI.jpg
ASSI.jpg (17.63 KiB) Viewed 19393 times

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Re: Help VMC TRIAC

Post by Martin » Wed 28 Mar , 2012 8:44 am

It may be worth checking that the ribbon cable between the custon card & motion control card is fully seated.

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Re: Help VMC TRIAC

Post by ilbiondo » Tue 10 Apr , 2012 16:43 pm

YESSSSSS!!!! I did it! :fireworks: :lolol:
The machine works!
The fault has been an abnormal contact of a fuse on the backplane!
Thank you all for your advice and thanks to Denford for the support.

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Re: Help VMC TRIAC

Post by Denford Admin » Wed 11 Apr , 2012 14:50 pm

Fantastico :lolol:

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