Tweco 400 TS Arcmaster - Manual (Page 27)

20
Socket Pin Function
A Torch Switch Input (24V) to energize weld current
(connect pins A & B to turn on welding current)
B Torch Switch Input (0V) to energize weld current
(connect pins A & B to turn on welding current)
C 5k ohm (maximum) connection to 5k ohm remote control potentiometer
D
Zero ohm (minimum) connection to 5k ohm remote control potentiometer
E Wiper arm connection to 5k ohm remote control potentiometer
G Mains Earth
F,H,I,J,K,L Not Used
M OK to move current detect signal for robotics applications
N OK to move current detect signal for robotics applications
3 Positive Terminal
Welding current flows from the Power Source via heavy duty Dinse type terminal. It is essential,
however, that the male plug is inserted and turned securely to achieve a sound electrical connection.
4 Negative Terminal
Welding current flows from the Power Source via heavy duty Dinse type terminal. It is essential,
however, that the male plug is inserted and turned securely to achieve a sound electrical connection.
CAUTION 2
Loose welding terminal connections can cause overheating and result in the male plug being
fused in the bayonet terminal.
5 Gas
The Gas Outlet is a 5/8 – UNF female gas fitting.
6 ON/OFF Switch
This switch connects the Primary supply voltage to the inverter when in the ON position.
This enables the Power Supply.
WARNING 6
When the welder is connected to the Primary supply voltage, the internal electrical components
may be at primary potential with respect to earth.