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question on modifying cheap foot control to work with Thermal Arc Ultima 150

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发表于 2021-9-1 23:19:33 | 显示全部楼层 |阅读模式
Hi folks,now that i have tested / welded a bit with the (new to me) Ultima 150 Plasma arc welder, I would like to add a foot pedal.  The proper TA pedal is $600+ and a great quality SSC pedal for this unit is $220US plus shipping so around $280 to me- both would be pinned correctly and ready to go.But, i can get a cheap one on Ebay for about $40 - I am tempted to try.  I know which pins on the remote, and internal TB1 connector I need to control the Arc on and Off and below has the rest of the pinout I need for remote amperage control.  I can cut off the cheap 2 and 3 pin connectors and hardwire to the TB1 or I can buy a miller style 14 ping plug - my main question / concern is the compatibity of the remote current control - can anyone tell me if this should work or could I cause damage, even if wired to the correct pins?It looks like 3 pins are needed for remote current control?specs for cheap pedal:SpecificationsColor: BlackMaterial: MetalAviation plug: 2+3 coreResistance: 10KInput voltage: 380VSize: 25 x 11.5cmSuitable For: super 200p, wse200 and TIG 200P AC/DC,315P TIG-315P AC/DC and other tig welding machineFeatures- Three-pin plug, remote control port connected to the machine, adjust the current- Two-pin plug, replace the gun switch line- The bottom of the rubber pad, effective insulation, more firmly on the ground- Easy to install, easy to use1 x foot control pedalebay listing for cheap pedal:https://www.ebay.com/itm/2-3-Pin-TIG...:pf:0#shpCntIdAny advice would be appreciated!

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Reply:

Originally Posted by Northeaster

Hi folks,now that i have tested / welded a bit with the (new to me) Ultima 150 Plasma arc welder, I would like to add a foot pedal.  The proper TA pedal is $600+ and a great quality SSC pedal for this unit is $220US plus shipping so around $280 to me- both would be pinned correctly and ready to go.But, i can get a cheap one on Ebay for about $40 - I am tempted to try.  I know which pins on the remote, and internal TB1 connector I need to control the Arc on and Off and below has the rest of the pinout I need for remote amperage control.  I can cut off the cheap 2 and 3 pin connectors and hardwire to the TB1 or I can buy a miller style 14 ping plug - my main question / concern is the compatibity of the remote current control - can anyone tell me if this should work or could I cause damage, even if wired to the correct pins?It looks like 3 pins are needed for remote current control?specs for cheap pedal:SpecificationsColor: BlackMaterial: MetalAviation plug: 2+3 coreResistance: 10KInput voltage: 380VSize: 25 x 11.5cmSuitable For: super 200p, wse200 and TIG 200P AC/DC,315P TIG-315P AC/DC and other tig welding machineFeatures- Three-pin plug, remote control port connected to the machine, adjust the current- Two-pin plug, replace the gun switch line- The bottom of the rubber pad, effective insulation, more firmly on the ground- Easy to install, easy to use1 x foot control pedalebay listing for cheap pedal:https://www.ebay.com/itm/2-3-Pin-TIG...:pf:0#shpCntIdAny advice would be appreciated!
Reply:shoot - just seeing your post now - i ended up ordering the cheap one a day ago.. we will see how it works if i get it wired right..Miller XMT 304 CC/CV Power sourceMiller Optima Pulsing pendantMiller XR feeder and XR15 Push-pull gunMiller XR feeder and XR30 Push-pull gunMiller S62 feederTD Pak master 100 plasma cutterTA Ultima 150 Plasma Arc Welder
Reply:Hi Folks,Cheap foot pedal finally arrived.  I know to connect the two lead from the foot pedal contacts to the RC3 weld arc on and rc4 weld arc return (from above post #1).  But, I could use some help in which of the 3 wires from the potentiometer go to which of the other connections from the diagram in post #1.  I assume they connect to  RC19, 20 and 21 but am not certain nor do I know which one is which on potentiometer (no wiring diagram/ labels with it and google didn't give any wiring diagram hits) - please see pics below.

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Last edited by Northeaster; 12-25-2018 at 03:41 PM.
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