Owner`s manual

CobraTig
®
150 Owner's Manual - Page 3
Section 4 Connections
Input Power
The CobraTig 150 SM can operate on any of four different input power
values: 100VAC, 120VAC, 208-220/230-240VAC Single Phase and, 208-
220/230-240VAC Three Phase. Attached to the unit is a 12ft power cable
that comes wired from the factory ready for 120VAC. Even though the
installed plug is only three prongs, there are four wires in the cable, ready for
three phase power.
DANGER
DISCONNECT ALL POWER TO THE UNIT PRIOR TO CHANGING THE POWER
TAPS. FAILURE TO DO THIS WILL RESULT IN SERIOUS BODILY HARM AND
EXTENSIVE EQUIPMENT DAMAGE.
To change the input power type, three changes have to be made to the
CobraTig 150 SM unit: rst change the voltage jumper, then the voltage
selector cable and the plug on the end of the cable. You will need a 1/4”
nutdriver wrench and a #2 Phillips head screwdriver.
Using the nutdriver, remove all the 1/4” hex head screws from the cover of
the unit, then lift the cover off. Locate TB1 on the lower-right-rear side of the
unit, from the front. Using the Phillips head screwdriver to change the taps,
follow the directions below:
Congure Voltage Selector Jumper at TB1 terminals 1-3, for the input
voltage, 100V/120V or 208V-220/230-240VAC. Remove and ip over to
change (see Jumper Conguration image).
Move “Voltage Selector Cable” to the corresponding input voltage terminal of
TB1 for 100V, 120V, 208V-220/230-240V.
After the input voltage taps have been congured, then change the plug on
the end of the power cable to match.
SmartArc
®
Software Update
When viewing the MAIN MENU of the CobraTig 150 SM, the currently loaded
software version will appear across the middle of the screen. Once the
software update is properly performed, this version number will show the
newly loaded version number.
Jumper Conguration
TB1 Congured
for 100/120VAC
TB1 Congured for
200-220/230-240VAC
1 2 3 4 5 6 7 8
100V 120V 208V/ 230V/
220V 240V
100/120V
1 2 3 4 5 6 7 8
208/230V
100V 120V 208V/ 230V/
220V 240V