Thermal Arc 185 TSW torch switch

As others have stated before, the Thermal Arc 185 TSW has to have a torch switch hooked up to use the sequencing features.

from the manual which is available for download at:

formatting link
Socket Pin Function

1 Earth (Ground) 2 Torch Switch Input (24V) to energize weld current. (connect pins 2 & 3 to turn on welding current) 3 Torch Switch Input (0V) to energize weld current (connect pins 2 & 3 to turn on welding current) 4 Connect pin 4 to pin 8 to instruct machine that a remote current control device is connected (12V DC supply) 5 5k ohm (maximum) connection to 5k ohm remote control potentiometer 6 Zero ohm (minimum) connection to 5k ohm remote control potentiometer 7 Wiper arm connection to 5k ohm remote control potentiometer 8 Connect pin 4 to pin 8 to instruct machine that a remote current control device is connected (0V)

I would guess that the torch switch hooks up to pins 2 and 3, the same as the switch in the foot pedal, but without the pin 4 to 8 jumper which instructs the machine that a remote current control is connected. If this is true, you could also use the switch in the foot pedal to initiate sequencing if you disconnected the pin 4 to 8 junper.

Can anyone confirm or deny this?

Harold

Reply to
harold.kroeker
Loading thread data ...

Harold:

I asked the same question on the Hobart board....see this thread for the answer

formatting link
the issue is discussed in messages #110 through #112. Pin 2 and 3 is all you apparently need for the button.

snipped-for-privacy@mts.net wrote:

Reply to
bc12_rider

Thanks for the confirmation. I ordered the correct AMP connector, pins and pin insertion tool so that I can make my own torch switch. I discovered that I can't remove the jumper without the pin tool so I guess I will have to wait until my order arrives.

Harold

bc12 snipped-for-privacy@hotmail.com wrote:

Reply to
harold.kroeker

PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.