Hi have had a new welding torch fitted to motoman ,on nx100 , but stuck on hold with wire sticking /short msg
Wire sticking/short
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Shade Wilson -
March 21, 2019 at 11:39 PM -
Thread is marked as Resolved.
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Take the positive weld wire off the post on the weld power supply. If the "wire sticking" goes away the problem is in the field wiring, if it does not go away, the problem is in the welder.
To check the field wiring, put the positive wire back on the welder and remove the other end of this wire from the wire feeder. If the message stays the weld positive wire is shorting to ground. If it goes away, put the wire back on and and remove the torch. Same thing, if it goes away the short to ground is in the torch if not, remove the input weld wire conduit. If the spool of wire is touching ground you will get this. Last thing it can be is the feeder.
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Take the positive weld wire off the post on the weld power supply. If the "wire sticking" goes away the problem is in the field wiring, if it does not go away, the problem is in the welder.
To check the field wiring, put the positive wire back on the welder and remove the other end of this wire from the wire feeder. If the message stays the weld positive wire is shorting to ground. If it goes away, put the wire back on and and remove the torch. Same thing, if it goes away the short to ground is in the torch if not, remove the input weld wire conduit. If the spool of wire is touching ground you will get this. Last thing it can be is the feeder.
I'm having the same issue however it is only when the weld finishes. The arc end file, instead of being a consistent weld, pulses three times on and off then the "Wire sticking/short" message comes up and the robot won't continue without an operator setting it off. Nothing has been changed for the issues to come up. I've cleaned the whole line down to try find the area that is shorting, replaced the torch, stripped the wire feed unit and replaced any areas of concern.
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Do you have a stand alone feeder like a VR1550 or is your wire feeder mounted on the robot arm?
We had this problem with a feeder on the robot arm. The washer that attached the ground to the feeder had come loose and pitted. Looking at it you couldn't tell anything was wrong. We found it when we took it all apart. Replaced the washers and no problems since.
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Do you have a stand alone feeder like a VR1550 or is your wire feeder mounted on the robot arm?
We had this problem with a feeder on the robot arm. The washer that attached the ground to the feeder had come loose and pitted. Looking at it you couldn't tell anything was wrong. We found it when we took it all apart. Replaced the washers and no problems since.
Going to try this now, our wire feed unit is attached to the arm itself so this could be our issue to. Thanks for the reponce.
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You get "wire stick" any time you are not welding and there is a short between the welder positive and negative posts. The Wire stick circuit comes from the analog card. There is a relay that opens when the welder is on (ARCON) and ignores this circuit. You could have a sticking or slow relay on the analog card that causes the wire stick to come on at the end of a weld. Try swapping the analog card with another and see if the problem moves.