Operating Instructions; Product Description; Duty Cycle; Operation - Lincoln Electric INVERTEC V350-PRO SVM152-A Service Manual

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OPERATING INSTRUCTIONS

WARNING
ELECTRIC SHOCK can kill.
• Do not touch electrically live parts or
electrode with skin or wet clothing.
• Insulate yourself from work and
ground.
• Always wear dry insulating gloves.
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FUMES AND GASES can be dangerous.
• Keep your head out of fumes.
• Use ventilation or exhaust to remove
fumes from breathing zone.
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-----------------
WELDING SPARKS can cause fire or
explosion.
• Keep flammable material away.
• Do not weld on closed containers.
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ARC RAYS can burn eyes and skin.
• Wear eye, ear and body
protection.
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See additional warning information at
front of this operators manual.
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GENERAL DESCRIPTION

PRODUCT DESCRIPTION

The Invertec V350-Pro offers multi mode CV and CC
DC welding and is rated 350 amps, 34 volts at a 60%
duty cycle. The V350-Pro is available in European and
Rest of the World (North America and Export) versions.
Differences between these versions are input ratings
and CE noise filtering. In the different configurations,
the V350-Pro is available in either a construction ver-
sion (no wire feeder connection and auxiliary power)
and a factory version (includes wire feeder connection
and related power).

DUTY CYCLE

The V350-Pro is rated at 350 amps, 60% duty cycle
(based on a 10 minute cycle). It is also rated at 275
amps, 100% duty cycle.

OPERATION

OPERATIONAL FEATURES and CONTROLS:

UPPER CONTROL PANEL

1. AMPS Meter

• Prior to STICK or TIG operation (current flow), the
meter displays preset current value (either 2 amps or
+/- 3% (e.g. 3 amps on 100), whichever is greater).
• Prior to CV operation, the meter displays four dash-
es indicating non-presetable AMPS.
• During welding, this meter displays actual average
amps.
• After welding, the meter holds the actual current
value for 5 seconds. Output adjustment while in the
"hold" period results in the "prior to operation" char-
acteristics stated above. The displays blink indicat-
ing that the machine is in the "Hold" period.

2. VOLT METER

• Prior to CV operation (current flow), the meter dis-
plays desired preset voltage value (+/- .5V).
• Prior to STICK or TIG operation, the meter displays
the Open Circuit Voltage of the Power Source or
four dashes if the output has not been turned on.
• During welding, this meter displays actual average
volts.
• After welding, the meter holds the actual voltage
value for 5 seconds. The displays blink indicating
that the machine is in the "Hold" period.
• Output adjustment while in the "hold" period results
in the "prior to operation" characteristics stated
above.

3. OUTPUT CONTROL

• Output control is conducted via a single turn poten-
tiometer.
• Adjustment is indicated by the meters as stated
above.
• When in TIG modes, this control sets the maximum
welding current. Full depression of a foot or hand
Amptrol results in the preset level of current.
4. WELD TERMINALS-REMOTE , ON
• Two status lights indicate the location of trigger
control as determined by the "WELD TERMINALS"
push button.
• If trigger control is local "weld terminals on", the ON
display will be lit.
• If trigger control is remote "weld terminals remotely
controlled", the REMOTE display will be lit.
• The unit will power up in "pre-determined preferred"
trigger modes.
For the Construction version all modes ON.
For the Factory version
STICK = ON
TIG and CV = ON or REMOTE depending if remote
output controls are connected to the machine.
V350-PRO
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