Tweco A 2000 Ultra-Feed - Manual (Page 28)

ULTRAFEED A 2000
4-2 May 1, 2006
4.03 Rear Panel Controls &Connections
1. CONTROL CABLE SOCKET: The control cable connects
to the power source at this 19-pin connector (of which
5 pins are used). It contains the signals required to
allow the welding power source and the wire feeder to
work together as a system. (Refer to Fig 4-2 and 4-3).
WARNING
The protective earth ground (pin G) of the
control cable is established only when the
power source is properly grounded. See the
power source owner’s manual for proper
grounding methods.
Control Cable
Pin
Function
A
Contactor Hot Relay Closure To
Energize
B Contactor Neutral Power Source
C Not Used
D Not Used
E 120 VAC Hot
F 120 VAC Neutral
G Protective Earth Ground
H Not Used
J Not Used
K Not Used
L Not Used
M Not Used
N Not Used
P Not Used
R Not Used
S Not Used
T Not Used
U Not Used
V Not Used
Table 4-1: 19-Pin Control Cable Connections
CAUTION
The relay contacts between pins A and B have
a maximum rating of 1/3 Horsepower (HP),
115 VAC or 10A, 230 VAC.
If the power source only has a 5 pin amphenol and AC
voltage outlets, an 870000-001 adapter cable will be
required for proper hookup with the ULTRAFEED A 2000
wire feeder.
If the power source only has a 14 pin amphenol, an
870093B-001 adapter cable will be required for proper
hookup with the ULTRAFEED A 2000 wire feeder. Refer
to section 2.07 Options and Accessories.
A M L
K U N B
C P V T J
H S R D
E F G
Keyway
Figure 4-2: Rear Panel 19 pin connections
2. GAS VALVE INLET: This is where the shielding gas
hose is connected to the wire feeder. The gas valve
inlet controls the “on/off” flow of shielding gas
through the welding gun.
3. WIRE FEED ACCESS: This is where the welding wire
feeds through the sheet metal housing to the wire
feeder.
4. WELDING CURRENT LEAD ACCESS: This is where
the welding current lead from the power supply feeds
through the sheet metal housing.
Art # A-07322
3
4
2
1
Figure 4-3: Rear Panel Connections