Arrrggh! I just blew my xylotex board

[ljoe1969]

Hi

ok. so the jubject tells the tale. i promise i had it hooked up correctly.

here is what happened.

i set the vref as close to 3.5 as i could with a digital voltmeter.
i connected the motors the way the instructions said.
i connected the printer cable.
i connected both power supplies correctly.
i connected the fan.
i turned on the power to the 5v first
i turned on the power to the 24v second.
the led was lit.
the fan was turning.
i pressed the up arrow key to jog using turbocnc program.
as soon as i touched the key by board went pop with a flash.
and thats all she wrote.

do you think my printer port is bad and caused the short?

by the way the led comes on when i hook up the vcc. and the vref was at 3.5

[pminmo]

Is this a new installation, or wiring proven? Smell smoke? any evidence of damage on the copper traces of the circuit board?

[balsaman]

I think he will fix it for free. It's starting to look like this happens a lot.

Eric

[ljoe1969]

no smoke, no sign of damage.

first time wiring it up.

the wires should have been connected correctly.

[ger21]

No, I believe there is a small fee for repairs. Are you sure your motors are wired correctly. Motors that are wired wrong will do what you said happened. What kind of motors and how did you have them wired?

Gerry

[ljoe1969]

i bought the motors from jeff at xylotex. i had them wired just the way the instructions said.

i got a piece of paper saying the motors are wired like the following.

red - A#
white - A
black - B#
green - B

[ljoe1969]

I JUST GOT AN EMAIL FROM JEFF AND HE SAID THE CAUSE MAY HAVE BEEN A BAD MOTOR.

DOES ANYONE KNOW HOW TO TEST A MOTOR TO SEE IF IT IS GOOD OR BAD. LIKE I SAID EARLIER I GOT THE MOTORS WITH THE BOARD FROM JEFF.

HE ALSO SAID IF I SEND IT TO HIM HE WOULD FIX IT AND MAIL IT BACK TO ME.

[BIG AL]

Ask Jeff how to ohm out his motor!

[buscht]

ljoe1969, Did you check to see if the motors locked up when you applied the 24V and vrefs set on all 3 axis's?

My system was just installed and I too swore that everything was hooked up properly. After further review, I found several things that I did wrong.

Its all working well now and I'm very happy with the motors and the board.

[ljoe1969]

HERE IS A PIC I TOOK OF THE MOTOR WIRES.
I GOT THE CONNECTOR WIRES FROM JEFF WHEN I GOT THE MOTORS.

[anoel]

That First Motor's white and Green wires are the reverse of the other two motors...

[Bloy2004]

Gee! I hope this isn't one of those "can't see the trees for the forrest" situations that befalls me so often. Tell me you have the wires for that first motor reversed also at the other end.