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I recently recieved this welder it is a code 10375 machine it is having erratic voltage output. It put out 60v DC and 115v ac when on the high settings however this is short lived and only for a split second then it varies from 30v ac to 110v ac. when on high idle but when you put it on auto idle and it idles down the voltage stabilizes at aroud 80v ac. these ac readings are taken at one of the 110 outlets. I took some readings at the capacitor and got about 32v when at low idle but when unit idles up the dc voltage fluctuates from 2-20v. I tried placing 12v power to the + brush when at high idle and unit will stabilize at 115v +/- 3v but if i do this while in auto idle mode the idle solenoid engages and unit stabilizes at around 80v and will not idle up.. I am not sure if I have a board problem or a capacitor problem or what any ideas would be appreciated. Also my board is a L8484-3 any sources for one or a rebuilder. Heres a link to the wiring diagram its on page 32 http://content.lincolnelectric.com//...r/im/IM510.pdf
Reply:Anybody have any ideas on why my units would fluctuate so much when at high idle without any loads on it ? I tried welding with it and it will weld with all controls set at max and on dc+ it managed to weld a bead comparible to one that would normally be at 125amp seting but on ac setting it would surge so bad i couldnt stabilize the arc enough to kep it flowing even though i was at 225amps setting
Reply:Welcome to the forum slimpickens. Considering both the welder and generator output is affected, my first guess is a loose connection within the field voltage control circuit. It sounds the field voltage is being lost intermittently due to the vibration at weld/power speed. I would start by checking the connector at the control board PCB1 and in particular harness plug pins #2 (wire 5E) and #5 (wire 219). Make sure the terminals are clean and fit tightly.Less likely but possible, it could also be a poor solder connection on PCB1 but start with the harness plug(s) and go from there.MM200 w/Spoolmatic 1Syncrowave 180SDBobcat 225G Plus - LP/NGMUTT Suitcase WirefeederWC-1S/Spoolmatic 1HF-251D-1PakMaster 100XL '68 Red Face Code #6633 projectStar Jet 21-110Save Second Base!
Reply:Thanks for the reply I managed to get a hold of a lincoln technical advisor today and he told me how to bypass the pcb controls and get full output to test the rotor and it is working great so I must have a board problem and will now try to tackle it. I do see that there are three 1 inch long white ceramic what appear to be resistors but not sure here two of which have a dark discoloration in the middle of their tops. Do you happen to know what the values of them are and how I might test them? I will double check the connections you mentioned tomorrow evening. Thanks again.
Reply:I'm afraid I can't help any on the board components but did you perhaps get the name of the Lincoln Tech Advisor who I'm sure could.If it turns out the board is bad and you can't fix it yourself, here's a place http://www.industrialelectronics.com/htm/welding.htm that repairs welder control boards.MM200 w/Spoolmatic 1Syncrowave 180SDBobcat 225G Plus - LP/NGMUTT Suitcase WirefeederWC-1S/Spoolmatic 1HF-251D-1PakMaster 100XL '68 Red Face Code #6633 projectStar Jet 21-110Save Second Base!
Reply:The discolored white resistor is normal. The resistor is white but they are covered with a sealant. Resistors get hot and burn off the sealant. Get out a magnifier and look at the solder connections on the pc board. Look at the plugs and any large parts. some times the solder connections will break. They show up as a ring about half way in to the part lead.They can be resoldered after scraping off the sealant. But check your plugs first. look at the socket side and make sure none of the sockets are spread out. ( larger diameter hole).Carefully use a small screw driver or pin to close it up to look like the others.keep looking.
Reply:Thanks I am going to pull the board and check it over this weekend I had to eliminate the rotor first and I managed to locate an old simpson last night to check it while it was running. I seem to have gotten too accustomned to using a DVOM and let mine get away. So now that the rotor isnt dropping out under speed I will spend a little bit more time trying to isolate the issue elsewhere. I called the people at http://www.industrialelectronics.com/htm/welding.htmDO NOT USE THE 800 # listed one the website it trys to get you to press a button that redirects you to another # and most of the info has changed also. I called the regular # just below the 800 # and its still good. I may just send it to them and have them go over it for me. I must say the the lincoln technical assistance guys are great I have recieved some great info for troubleshooting this and they even emailed me a copy of the pc board schematics. So if I do decide to try and fix it at least I know what goes where. Thanks for all of the advice.
Reply:Innovatcorp.com for rebuilt circuit boards on a variety of welders"Any day above ground is a good day"http://www.farmersamm.com/ |
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发表于 2021-8-31 22:16:40