Vulcan-Hart OMNIPRO 220 Owner's Manual & Safety Instructions page 35

Wire Weld Diagnosis – W orkpiece Heat Control / Weld Penetration
INAdEQUATE pENETRATION
Not hot enough
How to increase workpiece heat
and increase penetration:
(to weld THIckER workpieces properly)
a. Increase weld current
b. decrease travel speed
Example Wire Weld diagrams
good Voltage
Weld Too Low or
Wire Feed
Too Slow
TO cORREcT:
Increase
Output Voltage
Increase Wire
Feed Speed
Item 63621
pROpER pENETRATION
c. Use faster wire feed
d. Use shorter cTWd
Voltage
Too High or
Wire Feed
Too Fast
TO cORREcT:
decrease
Output Voltage
or or
decrease Wire
Feed Speed
For technical questions, please call 1-888-380-0318.
Ideal heat
How to reduce workpiece heat
and limit penetration:
(to weld THINNER workpieces properly)
e. decrease weld current
f. Increase travel speed
Travel Speed
Too Fast
TO cORREcT:
travel
slower
EXcESS pENETRATION OR
BURN-THROUgH
Too hot
g. Use slower wire feed
h. Use longer cTWd
Travel Speed cTWd
Too Slow Too Long
Wrong polarity
TO cORREcT: TO cORREcT:
check polarity
and
travel
faster
or
maintain
less
than 1/2"
cTWd
Page 35