Kemppi MASTERTIG AC/DC 2000 - 3.6.1. Installing the code locking; 3.6.2. Turning the machine on when the code locking is on; 3.6.3. Removal of code locking; 3.6.4. Changing the code

Voltage selector switch
Voltage selector switch S003 is used to select the correct net voltage (3~ 230, 400, 460 Vac). It
sets the correct transformation ratios for the main transformer T001 and voltages for auxiliary
transformer T002.
Mastertig 2500 AC/DC S003
Diode cards rectify the main transformer T001´s secondary voltages. The secondary unit
G002´s IGBT-transistors genereate the current type: DC-, DC+ or AC. Control card A003
generates the auxiliary pulse (approx. 400V/ 1ms) needed in AC welding.
Mastertig AC/DCs
Secondary circuit components
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