Tweco VA 4000 Ultra-Feed - Manual (Page 23)

ULTRAFEED VA 4000
September 18, 2012 3-1
SECTION 3:
INSTALLATION
3.01 Connections
Refer to the System Outline drawing in the Appendix of
this manual for details.
1. Make the proper welding cable connections
between the power source and wire feeder and
between the power source and work connection.
2. Connect the control cable from the feeder to the
power source. Control cable extensions are
available; Refer to Available Options.
NOTE
An optional 870000-001 adapter cable will be
required for connection to a power source with
only a 5 pin amphenol connection and AC
voltage outlets. An optional 870093B-001
adapter cable will be required for connection
to a power source with only a 14 pin amphenol
connection. These options are only applicable
to 19 pin plug units.
3. Make the proper gas line connection from the gas
supply to the wire feeder gas valve (if gas will be
used).
4. Attach the welding gun to the wire feeder.
5. Connect the welding gun control leads to the wire
feeder gun switch terminals located on the front
of the feeder.
3.02 Grounding
To assure operator safety in the case of a fault condition,
the frame of the power source (welding machine) must
be grounded. The wire feeder sheet metal frame is
grounded only through pin G (for 19 pin plug) of the
control cable that connects to the power source.
Therefore, if the power source frame is not grounded,
then, the wire feeder sheet metal frame is not grounded,
and a shock hazard could possibly develop. Follow the
instructions found in the power source Owner’s Manual
for correct grounding methods.
3.03 EMI Considerations
Electromagnetic interference (EMI) is common in today’s
complex industrial environment. At times, EMI levels can
become great enough to affect the operation of the
machinery. To help reduce and safeguard against EMI
levels in the welding area, follow these simple guidelines:
1. Firmly secure all sheet metal panels on the power
source and wire feeder. Repair or replace heavily
corroded or damaged panels and/or fasteners.
2. Keep the welding cables and control cables as
short as possible.
3. Route the ‘+’ and ‘-’ welding cables from a
particular power source together.
4. Keep the welding cables as straight as possible;
avoid coiling up the cables.
5. Route the control cable away from the welding
cables.
NOTE
Grounding of the workpiece may reduce
emissions in some, but not all circumstances.
To prevent the risk of injury or damage to other
electrical equipment when grounding the
workpiece, take care to follow all local laws
and regulations.