Help VMC TRIAC

[angel-tech]

estop button?

[ilbiondo]

Button ok.

[Martin]

Are the drives powered up.

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

[ilbiondo]

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

[ilbiondo]

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

[ilbiondo]

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

[angel-tech]

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

[ilbiondo]

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

[Denford Admin]

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.

[angel-tech]

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

[Denford Admin]

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

[ilbiondo]

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

[angel-tech]

is there 24v on the drives

[Denford Admin]

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...

[ilbiondo]

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

[angel-tech]

make sure the drives are fully pushed into the sockets.

[ilbiondo]

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.

[Martin]

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

[ilbiondo]

YESSSSSS!!!! I did it!
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.

[Denford Admin]

Fantastico