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Posted by Eug on July 2, 2008, 11:24 am
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This machine is a 2004 model used for tig with a water cooled torch
and foot pedal remote control. The problem started when the remote
cable was damaged causing the machine to give an error code 12. The
foot pedal cable was repaired and the machine now starts up normally.
Now I can strike an arc but cannot get the machine to go over 56 amps.
The foot pedal appears to control the amperage but maxes out at 56,
even with the front panel amperage control set to max. The amperage
indicator reads up to 310 amps when idling but while welding, never
goes over 56.
To try and isolate the problem, I switched to =93panel=94 control of
amperage and in this condition full amperage is delivered. Since we
have other machines in the shop, I swapped in another pedal resulting
in the same problem. (And the first pedal works fine on the other
machine.)
My guess is only two things remain, either the wiring from the plug to
the mother board or the motherboard itself.
I am hoping someone can suggest other tests or possibilities
Thanks!
Eug
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Posted by RAM³ on July 2, 2008, 12:27 pm
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e990e7e31db1@t12g2000prg.googlegroups.com:
> This machine is a 2004 model used for tig with a water cooled torch
> and foot pedal remote control. The problem started when the remote
> cable was damaged causing the machine to give an error code 12. The
> foot pedal cable was repaired and the machine now starts up normally.
> Now I can strike an arc but cannot get the machine to go over 56 amps.
> The foot pedal appears to control the amperage but maxes out at 56,
> even with the front panel amperage control set to max. The amperage
> indicator reads up to 310 amps when idling but while welding, never
> goes over 56.
> To try and isolate the problem, I switched to “panel” control of
> amperage and in this condition full amperage is delivered. Since we
> have other machines in the shop, I swapped in another pedal resulting
> in the same problem. (And the first pedal works fine on the other
> machine.)
> My guess is only two things remain, either the wiring from the plug to
> the mother board or the motherboard itself.
> I am hoping someone can suggest other tests or possibilities
> Thanks!
> Eug
>
Two suggestions:
1. Re-post this on the sci.engr.joining.welding NG.
2. If you don't have the manuals - especially the wiring diagrams - for
this unit, go to the Miller website and download them..
Of course, you COULD just place a call to your Miller Dealer/Distributor
and see what they have to say...
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Posted by Ignoramus14593 on July 2, 2008, 12:36 pm
Please log in for more thread options I think that this is a simple problem.
Get a manual for the RFCS-14 pedal.
Find out which three contacts are for the potentiometer common,
ground, and wiper. Measure resistance between two ends, and then
between one and wiper as you engage the pedal.
The latter should change from zero to the first value.
if it does not, you probably found your problem.
i
> e990e7e31db1@t12g2000prg.googlegroups.com:
>
>> This machine is a 2004 model used for tig with a water cooled torch
>> and foot pedal remote control. The problem started when the remote
>> cable was damaged causing the machine to give an error code 12. The
>> foot pedal cable was repaired and the machine now starts up normally.
>> Now I can strike an arc but cannot get the machine to go over 56 amps.
>> The foot pedal appears to control the amperage but maxes out at 56,
>> even with the front panel amperage control set to max. The amperage
>> indicator reads up to 310 amps when idling but while welding, never
>> goes over 56.
>> To try and isolate the problem, I switched to “panel” control of
>> amperage and in this condition full amperage is delivered. Since we
>> have other machines in the shop, I swapped in another pedal resulting
>> in the same problem. (And the first pedal works fine on the other
>> machine.)
>> My guess is only two things remain, either the wiring from the plug to
>> the mother board or the motherboard itself.
>> I am hoping someone can suggest other tests or possibilities
>> Thanks!
>> Eug
>>
>
> Two suggestions:
>
> 1. Re-post this on the sci.engr.joining.welding NG.
>
> 2. If you don't have the manuals - especially the wiring diagrams - for
> this unit, go to the Miller website and download them..
>
> Of course, you COULD just place a call to your Miller Dealer/Distributor
> and see what they have to say...
>
--
Due to extreme spam originating from Google Groups, and their inattention
to spammers, I and many others block all articles originating
from Google Groups. If you want your postings to be seen by
more readers you will need to find a different means of
posting on Usenet.
http://improve-usenet.org/
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Posted by Jim Stewart on July 2, 2008, 2:21 pm
Please log in for more thread options Ignoramus14593 wrote:
> I think that this is a simple problem.
>
> Get a manual for the RFCS-14 pedal.
>
> Find out which three contacts are for the potentiometer common,
> ground, and wiper. Measure resistance between two ends, and then
> between one and wiper as you engage the pedal.
>
> The latter should change from zero to the first value.
>
> if it does not, you probably found your problem.
He swapped in a known good pedal and the problem
didn't go away, so it's not the pedal or pedal
cable. Sounds like something is blown in the
box itself.
>
>> e990e7e31db1@t12g2000prg.googlegroups.com:
>>
>>> This machine is a 2004 model used for tig with a water cooled torch
>>> and foot pedal remote control. The problem started when the remote
>>> cable was damaged causing the machine to give an error code 12. The
>>> foot pedal cable was repaired and the machine now starts up normally.
>>> Now I can strike an arc but cannot get the machine to go over 56 amps.
>>> The foot pedal appears to control the amperage but maxes out at 56,
>>> even with the front panel amperage control set to max. The amperage
>>> indicator reads up to 310 amps when idling but while welding, never
>>> goes over 56.
>>> To try and isolate the problem, I switched to “panel” control of
>>> amperage and in this condition full amperage is delivered. Since we
>>> have other machines in the shop, I swapped in another pedal resulting
>>> in the same problem. (And the first pedal works fine on the other
>>> machine.)
>>> My guess is only two things remain, either the wiring from the plug to
>>> the mother board or the motherboard itself.
>>> I am hoping someone can suggest other tests or possibilities
>>> Thanks!
>>> Eug
>>>
>> Two suggestions:
>>
>> 1. Re-post this on the sci.engr.joining.welding NG.
>>
>> 2. If you don't have the manuals - especially the wiring diagrams - for
>> this unit, go to the Miller website and download them..
>>
>> Of course, you COULD just place a call to your Miller Dealer/Distributor
>> and see what they have to say...
>>
>
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Posted by Winston on July 2, 2008, 3:13 pm
Please log in for more thread options
>>>> This machine is a 2004 model used for tig with a water cooled torch
>>>> and foot pedal remote control. (...)
Have you tried "Reset to Factory Settings" yet?
From: http://www.millerwelds.com/om/o363w_mil.pdf
"To reset all welding power source functions
to original factory settings, turn power off.
Push and hold the Process, Amperage,
Output, and Start controls and turn On power.
Hold switch pads for approximately 7
seconds (or until software version number
_ _ _ _ _ _-_clears meters)."
--Winston
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> and foot pedal remote control. The problem started when the remote
> cable was damaged causing the machine to give an error code 12. The
> foot pedal cable was repaired and the machine now starts up normally.
> Now I can strike an arc but cannot get the machine to go over 56 amps.
> The foot pedal appears to control the amperage but maxes out at 56,
> even with the front panel amperage control set to max. The amperage
> indicator reads up to 310 amps when idling but while welding, never
> goes over 56.
> To try and isolate the problem, I switched to “panel” control of
> amperage and in this condition full amperage is delivered. Since we
> have other machines in the shop, I swapped in another pedal resulting
> in the same problem. (And the first pedal works fine on the other
> machine.)
> My guess is only two things remain, either the wiring from the plug to
> the mother board or the motherboard itself.
> I am hoping someone can suggest other tests or possibilities
> Thanks!
> Eug
>