Tweco 300Pi Transtig Welding Inverter - Manual (Page 24)

TRANSTIG 300Pi
INSTALLATION, OPERATION AND SETUP 3-6 Manual 0-5309
8. Remote Control Socket
The 8 pin Remote Control Socket is used to connect remote control devices to the welding power source.
To make connections, align keyway, insert plug, and rotate threaded collar fully clockwise.
A-11662
Figure 3-4: Remote Control Socket
Socket Pin Function
1 Not connected
2 Trigger Switch Input
3 Trigger Switch Input
4 Not connected
5 5k ohm (maximum) connection to 5k ohm remote control potentiometer.
6 Zero ohm (minimum) connection to 5k ohm remote control potentiometer.
7 Wiper arm connection to 5k ohm remote control Amps GTAW (TIG) mode potentiometer.
8 Not connected.
Table 3-1
9. 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.
10. Trigger Mode Control
The trigger mode control is used to switch the functionality of the of the torch trigger between 2T (normal)
and 4T (latch mode)
Note that pressing the Trigger Mode Button while turning the mains power on will perform a factory reset.
2T Normal Mode
In this mode, the torch trigger must remain depressed for the welding output to be active. Press and hold
the torch trigger to activate the power source (weld). Release the torch trigger switch to cease welding.