relais toujours activé ?

[satrian]

bonjour a tous, pas très habituer a des forum, pardonnez moi
je possède une carte UC300ETH-5LPT + UCBB breakout board depuis 10 mois, mais
suite a des soucis de santé important je n'avait pas put continuer ma cnc
aujourd'hui, j'ai put finir la fabrication de ma cnc, la semaine dernière tous fonctionner bien sans problèmes
cette semaine je redémarre ma machine et les relais branchés sur UCBB1 sur les sortie outputs 01/014/016 ne ce coupe plus (relais broche et pompe,;;;)
pourtant je n'est rien touché au branchement, plus moyen de commander ces pins, leds allumées ou pas la tension est toujours constante et les relais sont toujours alimentés en permanence
alors que la sortie outputs 017 elle continue a fonctionner normalement (led allumée enclenche le relai, et led éteinte coupe le relais)
après plusieurs vérifications de mes branchements, il s'avers que les branchements corresponde bien a la documentation fournit avec UCBB
apparemment un composant de la carte ne fonctionne plus ?? puisse qu'on a rien changé au branchement et que sa ne fonctionne plus
pour le reste de la carte tout fonctionne bien
pouvez vous m'aidez dans ce problème et me dire comment faire
en vous en remercient

[ger21]

Hello everyone, not very used to forums, forgive me
I have had a UC300ETH-5LPT + UCBB breakout board for 10 months, but
due to serious health concerns I could not continue my cnc
today i was able to finish the manufacture of my cnc, last week all work fine without problems
this week I restart my machine and the relays connected to UCBB1 on outputs 01/014/016 no longer cut (spindle and pump relay, ;;;)
however I have nothing touched at the connection, no more way to control these pins, leds on or not the voltage is always constant and the relays are always supplied permanently
while the output 017 it continues to function normally (led on activates the relay, and led off cuts the relay)
after several checks of my connections, it turns out that the connections correspond well to the documentation supplied with UCBB
apparently a component of the card does not work anymore ?? may we have changed nothing at the connection and that its no longer works
for the rest of the map everything works fine
can you help me in this problem and tell me how to do
thank you

[naijin]

You have a done a great job to translate ger21

Cheers
Nick

[cncdrive]

If the output is always shorted to GND no matter if the output is on or off. (This condition energises the relay always)
Then it is very likely that the output Mosfet transistor died.
The output is an N channel mosfet transistors and N channel mosfets failure mode is short circuit, so if the mosfet is dead then it is very likely causing an always active output, which means that the output get connected to GND always.

In this case the only solution is to replace the mosfet and study what could cause it's failure.
It could be overvoltage is overcurrent or even ESD, mosfets are ESD sensitive, so it is not a good idea to touch then with bare hands.

[A_Camera]

Si la sortie est toujours court-circuitée à GND, que la sortie soit activée ou désactivée. (Cette condition excite toujours le relais)
Ensuite, il est très probable que le transistor Mosfet de sortie soit mort.
La sortie est un transistors mosfet à canal N et le mode d'échec des mosfets à canal N est un court-circuit, donc si le mosfet est mort, il est très probable qu'il provoque une sortie toujours active, ce qui signifie que la sortie est toujours connectée à GND.

Dans ce cas, la seule solution est de remplacer le mosfet et d'étudier les causes de son échec.
Cela peut être une surtension, une surintensité ou même des décharges électrostatiques, les mosfets sont sensibles aux décharges électrostatiques, il n'est donc pas judicieux de les toucher à mains nues.

Pardon my French... in case it is incorrect. I asked my best friend (Mr. G) to make a quick translation and that's what he came up with.

[satrian]

If the output is always shorted to GND no matter if the output is on or off. (This condition energises the relay always)
Then it is very likely that the output Mosfet transistor died.
The output is an N channel mosfet transistors and N channel mosfets failure mode is short circuit, so if the mosfet is dead then it is very likely causing an always active output, which means that the output get connected to GND always.

In this case the only solution is to replace the mosfet and study what could cause it's failure.
It could be overvoltage is overcurrent or even ESD, mosfets are ESD sensitive, so it is not a good idea to touch then with bare hands.

dans mon cas c(est un relais en v24 v brancher comme decri sur la documentation de l'UCBB le 24v a la borne + du relais et le moins a la pin de l'ucbb,pour tous les relais

[A_Camera]

dans mon cas c(est un relais en v24 v brancher comme decri sur la documentation de l'UCBB le 24v a la borne + du relais et le moins a la pin de l'ucbb,pour tous les relais

Satrian,

Avant de poster, parcourez-le ici:

https://translate.google.se/?hl=sv&tab=wT

It would help every forum reader.

[satrian]

If the output is always shorted to GND no matter if the output is on or off. (This condition energises the relay always)
Then it is very likely that the output Mosfet transistor died.
The output is an N channel mosfet transistors and N channel mouftes failure mode is short circuit, so if the mosfet is dead then it is very likely causing an always active output, which means that the output get connected to GND always.

In this case the only solution is to replace the mosfet and study what could cause it's failure.
It could be overvoltage is overcurrent or even ESD, mosfets are ESD sensitive, so it is not a good idea to touch then with bare hands.

in my case c (is a relay in v24 v plug as decri on the documentation of the UCBB the 24v has the terminal - the relay and the least has the pine of the ucbb, for all relays
and what I do not understand is that all work the week before (in the meantime I'm not touched anything)
as you must have understood, I discover the world of the cnc and I am not a very high level in electronics (but its interested me) can us if you will tell me if there is a way to control these mosfets and how to proceed, thank you all for your efforts to help me