Panel reference · WSE AC/DC TIG
WSE AC/DC TIG control panel board reference
Use this page when a WSE AC/DC TIG welder ignores AC/DC selection, balance, pulse, foot pedal, post-flow or current settings. In AC/DC machines, panel commands can decide whether the secondary inverter is enabled and how the AC waveform behaves.
Panel command groups
AC/DC selection
Chooses whether secondary inverter polarity switching is needed.
AC balance
Adjusts electrode-negative/electrode-positive time and cleaning behavior.
Pulse control
Modulates current command, pulse frequency and peak/base relationship.
Current command
Main current, crater current, base current and remote pedal command.
Timing controls
Pre-flow, post-flow, up-slope/down-slope and start/end current behavior.
Remote / pedal
Allows foot pedal or remote connector to take command from panel control.
Panel-fault routing
| Symptom | Panel-side check | Then check |
|---|---|---|
| DC works, AC selection has no effect | AC/DC switch, connector and command voltage. | Control board AC enable and secondary driver input. |
| AC balance knob has no effect | Balance potentiometer and signal path. | Secondary driver timing and waveform control. |
| Foot pedal starts arc but does not control current | Remote current pot line and pedal connector pinout. | Control-board remote input and current command mux. |
| Pulse missing or unstable | Pulse enable, frequency/duty pots and panel connector. | Control-board pulse modulation and feedback response. |
| Post-flow stuck | Post-flow setting and timing output. | Gas valve driver and control-board timing network. |
Panel commands can look like power faults
In WSE AC/DC TIG machines, a failed AC/DC command or balance control can make the secondary inverter look dead. Check panel command signals before condemning the secondary driver or inverter board.