Getting To Know Your Welder; Description; Welder Layout And Controls - Forney 220 ST Pro Operating Manual

Stick/tig arc welder
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Getting to Know Your Welder

Description

Your new single phase inverter welder offers Stick and TIG welding processes in the same power source. These processes
can be selected with the process SELECTOR BUTTON (1) on the front panel of the unit.
Stick Welding, "SMAW"
All electrode types can be used. Welding current is adjusted using the AMPERAGE ADJUSTMENT KNOB (4).
TIG Welding, "GTAW"
In the TIG position, a TIG torch with a gas valve in the handle is NOT required. The gas valve is automatically turned
on when pedal is pushed or amp trol is engaged. The arc is activated using a lift arc technique or high frequency start
technique.
Using the AMPERAGE ADJUSTMENT KNOB, maximum welding current can be adjusted.

Welder Layout and Controls

1. PROCESS SELECT SWITCH for welding process selection
a. DC TIG HF – Direct Current TIG High Frequency (automatic start when pedal or torch button engaged)
b. DC TIG LIFT- Direct Current TIG automatic start when touch and lifted to create arc
c. DC STICK - Direct Current Stick welding
2. THERMAL FAULT LED - thermal overload protection has been activated
3. INPUT VOLTAGE LED – machine is powered on and operating normally
4. OUTPUT FAULT LED – there is a general welding or machine fault
5. SECONDARY PARAMETER KNOB/SELECTOR for the function selection:
a. PULSE (Hz)- Frequency: Pulses per second or Hertz
b. PULSE (% On) – Balance: % at Peak Amperage Peak
c. ARC FORCE – Affects penetration while also modifying arc from soft to hard.
6. AMPERAGE ADJUSTMENT KNOB is used to adjust the following welding parameters:
Using 120V
a. In STICK ("SMAW") Mode it adjusts welding current (amperage) from 15A to 80A.
b. In TIG, ("GTAW") Mode it adjusts welding current (amperage) from 10A to 85A.
Using 230V
a. In STICK ("SMAW") Mode it adjusts welding current (amperage) from
b. In TIG, ("GTAW") Mode it adjusts welding current (amperage) from
7. POSITIVE (+) DINSE SOCKET
8. TIG GAS OUTPUT
9. NEGATIVE (-) DINSE SOCKET
10. ACCESSORY CONNECTION
11. POWER SWITCH
12. INPUT POWER CABLE
13. TIG GAS INPUT
14. FANS
Advanced Function Selection Details
1.
PULSE (Hz) Changes how often amperage switches between Base Current and Peak (High) Current per
second. A higher PPSulse setting creates focused puddle and tight ripple bead pattern. A lower PPS creates
broader puddle and unique ripple bead pattern.
2.
PULSE (% On) changes the amount of time the pulse stays at Main (Peak) current. A higher Pulse (% On)
will increase penetration while a lower value is better for thin material.
3.
ARC FORCE changes penetration and adjusts arc from soft (low) to hard (high).
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