Selects whether secondary inverter/polarity switching should operate.
Board reference
WSE AC/DC TIG Control Panel Reference
A control-panel service reference for WSE AC/DC TIG welders.
Quick Answer
The WSE AC/DC TIG control panel adds AC/DC process selection, pulse, balance and secondary-inverter command layers. It should not be treated like a simple DC TIG panel.
- Use this page when AC mode, DC mode, pulse, balance or current timing behaves differently from expected.
- Separate primary output availability from secondary AC/DC switching command.
- If AC output is missing but DC output exists, inspect secondary inverter/driver control rather than the whole machine.
WSE AC/DC TIG panel route
Panel command layers that affect secondary inverter behavior.
Pulse frequency/base/peak behavior is command-dependent.
AC balance affects electrode/work heat distribution.
Mode signal must reach secondary driver/inverter stage.
Panel timing still controls start sequence and post-flow.
WSE panel evidence table
| Panel function | Fault clue | Direction |
|---|---|---|
| AC/DC selector | DC works but AC missing. | Check selector signal and secondary inverter/driver path. |
| Pulse controls | Pulse missing or unstable. | Check panel command and control-board processing. |
| Balance control | AC arc behavior abnormal. | Check balance command before replacing secondary devices. |
| Gas/HF timing | Good current path but start timing abnormal. | Use TIG timing route. |
| Secondary driver command | Panel setting valid but secondary switching absent. | Open WSE secondary inverter/driver reference. |
Related records
Open related secondary-stage and timing pages.