C
ONNECTING
THE
W
ELDING
P
OWER
S
OURCE
C
ONNECTION
C
HAPTER
4
4-6
4.2.4
Connection at TIG welding
1.
Connect the power cable for torch side to the output terminal (base metal side).
●
At the welding power source side, fit the convex part of the connector and concave part of the output
terminal for secure connection and tighten them in the clockwise direction.
2.
Connect the power cable for base metal side to the output terminal (torch side) and base metal.
●
Connect the connectors as same as above.
• In using the welding power source for TIG welding, prepare a welding torch by the
customer.
• Contrary to the normal connection, the TIG welding requires connection of the welding
torch to the output terminal (base metal side). Also, connect the power cable for base
metal side to the output terminal (torch side).
• After five seconds have passed, the safety voltage (approx.15 V) is automatically
provided.
Ground a base metal if
required by local law.
Power cable for base metal side
Base metal
Power cable for
torch side
Welding power source
Connector
Output terminal
(Torch side)
Output terminal
(Base metal side)
