ESAB Welding System Part No. 677190 User Manual
UEC-8
UNIONMELT
®
ELECTRONIC
WELDING CONTROL
Part No. 677190
Be sure this information reaches the operator.
You can get extra copies through your supplier.
You can get extra copies through your supplier.
These INSTRUCTIONS are for experienced operators. If you are not fully familiar with the principles of operation and safe
practices for electrical welding equipment, we urge you to read our booklet, "Precautions and Safe Practices for Arc Welding,
Cutting and Gouging", Form 52-529. Do NOT permit untrained persons to install, operate, or maintain this equipment. Do NOT
attempt to install or operate this equipment until you have read and fully understand these instructions. If you do not fully
understand these instructions, contact your supplier for further information. Be sure to read the Safety Precautions on page 2
before installing or operating this equipment.
practices for electrical welding equipment, we urge you to read our booklet, "Precautions and Safe Practices for Arc Welding,
Cutting and Gouging", Form 52-529. Do NOT permit untrained persons to install, operate, or maintain this equipment. Do NOT
attempt to install or operate this equipment until you have read and fully understand these instructions. If you do not fully
understand these instructions, contact your supplier for further information. Be sure to read the Safety Precautions on page 2
before installing or operating this equipment.
Before applying electrical power, refer to Section IV for an important checklist on the proper interconnection of the UEC-8 Con-
trol.
trol.
FEATURES/BENEFITS
Solid State Control ... To assure economical weld-
ing, precise control of welding conditions and arc sta-
bility is maintained with UEC-8 solid state accuracy.
bility is maintained with UEC-8 solid state accuracy.
Compact Size ... For easy installation and capability
to fit into simple fixtures, OM-48 carriages, or the most
complex automated production lines.
complex automated production lines.
Low Maintenance ... Two basic solid state plug-in
printed circuit boards simplify troubleshooting and
minimize maintenance time.
minimize maintenance time.
Operating Versatility ... The UEC-8 is adapted to a
wide range of Sub Arc operations.
Rugged Construction ... Minimize downtime and
maintenance costs, and provides for worry-free op-
eration.
eration.
Variable INCH/STRIKE Wire Feed Speed ... Smooth
starts can be obtained even under the most demand-
ing conditions with the UEC-8's front panel variable
INCH/STRIKE wire feed speed adjustment.
ing conditions with the UEC-8's front panel variable
INCH/STRIKE wire feed speed adjustment.
Positive Starts ... Result from the UEC-8 voltage/
current detection circuit. This circuit will only allow
transfers from INCH/STRIKE to Welding Wire Feed
speed after an "ARC" has been established. Most
competitive controls do not offer this feature.
transfers from INCH/STRIKE to Welding Wire Feed
speed after an "ARC" has been established. Most
competitive controls do not offer this feature.
Adjustable Anti-Stick ... This feature allows adjust-
Dimensions and weight of the UEC-8 are as follows:
Height ...................................................... (152 mm) 6-in.
Width ..................................................... (305 mm) 12-in.
Depth ...................................................... (209 mm) 8-1/3
Width ..................................................... (305 mm) 12-in.
Depth ...................................................... (209 mm) 8-1/3
Input requirements: 120 Volt 50/60 Hz. 1 phase power @
5 amps A.C.
5 amps A.C.
SPECIFICATIONS
ment of the wire retract time to prevent the electrode
from sticking in the puddle after completion of a weld.
from sticking in the puddle after completion of a weld.
OM-48 Compatibility.... The UEC-8 has a plug-in
connection for direct interface with the J Governor/
OM-48 Carriage.
connection for direct interface with the J Governor/
OM-48 Carriage.
UEC-8 and EH-10 or EH-11 Motor .... With large 2-
in. diameter feed rolls offers the reserve power
needed to assure consistent wire feeding under the
most demanding conditions.
in. diameter feed rolls offers the reserve power
needed to assure consistent wire feeding under the
most demanding conditions.
Optional Digital Meters .... Provide excellent means
of observing and controlling welding voltage, wire feed
speed - I.P.M., and amperage.
of observing and controlling welding voltage, wire feed
speed - I.P.M., and amperage.
INSTRUCTIONS for
F-12-747-F
March, 1995