Multiquip SDW225SS - Manual (Page 32)

PAGE 32 —SDW-225SS WELDER/GENERATOR— OPERATION & PARTS MANUAL — REV. # 2 (10/07/05)
Welding Cables
Connect the welding cables (Figure 18) to the welder's output
terminals located on the control panel. The output terminals
have (+) and (-) polarities. Select the appropriate polarities
according to the application (see Table 11).
SDW-225SS— WELDER OPERATING INSTRUCTIONS
ALWAYS attach terminal connectors
at the end of each cable. NEVER
connect exposed or frayed wires
(Figure 19) directly to the terminals.
Exposed wiring may cause shocks
or di-electric breakdown from poor
contact.
Figure 18. Welding Cable Connection
(Correct)
Figure 19. Welding Cable Connection
(Incorrect)
NOTE
Welding Polarity
Polarity indicates the direction of the current flow in a circuit.
Since DC current moves in only one direction, polarity is
important because the flow of current must be changed
depending on the application. By changing the polarity, the
greatest amount of heat can be concentrated where it is most
needed. With straight polarity (electrode negative) more heat is
directed to the workplace. When using reverse polarity (electrode
positive) more of the heat generated is directed to the electrode.
See Figure 20.
Figure 20. Welding Polarity