Tweco 300 DC Arcmaster - Manual (Page 27)

ARCMASTER 300 ACDC
February 22, 2006 4-1
SECTION 4:
OPERATOR CONTROLS
4.01 ArcMaster 300 ACDC Controls
1. Control Knob: This control sets the selected weld
parameter, rotating it clockwise increases the parameter
that is indicated on the digital meter. Pushing the knob
inward displays the actual welding voltage.
2 . Remote Control Socket: The 14 pin Remote Control
Socket is used to connect remote current control
devices to the welding Power Source. To make
connections, align keyway, insert plug, and rotate
threaded collar fully clockwise.
A J
B K I
C L N H
D M G
F E
A B C D E F G H I J K L M N
E
Front view of 14
Socket Receptacle
5k ohms
Art # A-07653
Figure 4-2: 14-Socket Receptacle
Art # A-04983
450
210
435
1
3
5
9
2
7
8
6
4
Figure 4-1: ArcMaster 300 ACDC Power Source
Socket
Pin
Function
A
Torch Switch Input (24V) to (connect
pins A & B to turn on welding current).
Torch Switch Input (0V) to energize weld
B 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.
Table 4-1: Socket Pin Functions