Tweco 200DC Inverter Arc Welding Machine - Manual (Page 23)

WELDSKILL 200AC/DC INVERTER
Manual 0-5207 3-5 INSTALLATION, OPERATION AND SETUP
1. Positive Welding Terminal
Positive Welding Terminal. Welding current flows from the Power Source via heavy duty bayonet type
terminals. It is essential, however, that the male plug is inserted and turned securely to achieve a sound
electrical connection.
2. 8 Pin Control Socket
The 8 pin receptacle is used to connect a trigger switch or remote control to the welding Power Source
circuitry:
To make connections, align keyway, insert plug, and rotate threaded collar fully clockwise. The socket
information is included in the event the supplied cable is not suitable and it is necessary to wire a plug or
cable to interface with the 8 pin receptacle.
Socket Pin Part Number / Description
1 Not used
2 Trigger Switch Input
3 Trigger Switch Input
4 Not used
5 Remote Control 5k ohm Potentiometers Maximum
6 Remote Control 5k ohm Potentiometers Minimum
7 Remote Control 5k ohm Potentiometer Wiper
8 Not used
Table 3-1: 8 Pin Interconnection Control Plug Configuration
3. Negative Welding Terminal
Negative Welding Terminal. Welding current flows from the Power Source via heavy duty bayonet type
terminals. It is essential, however, that the male plug is inserted and turned securely to achieve a sound
electrical connection
CAUTION
Loose welding terminal connections can cause overheating and result in the male plug being fused in the
terminal.
4. Shielding Gas Outlet
The Shielding Gas Outlet located on the front panel is a 5/8-18 UNF female gas fitting and is utilised for
the connection of a suitable TIG Torch.
5. Power ON Indicator
The POWER ON indicator illuminates when the ON/OFF switch (20) is in the ON position and the correct
mains voltage is present.
6. Thermal Overload Indicator Light
This welding power source is protected by a self resetting thermostat. The indicator will illuminate if the
duty cycle of the power source has been exceeded. Should the thermal overload indicator illuminate the
output of the power source will be disabled. Once the power source cools down this light will go OFF and
the over temperature condition will automatically reset. Note that the mains power switch should remain
in the on position such that the fan continues to operate thus allowing the unit to cool sufficiently. Do not
switch the unit off should a thermal overload condition be present.
3 4 5
6 7 8
1 2
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