remote control is connected to the 6-pin amphenol
and one of the 14-pin amphenols. If a remote is
not connected to the 6-pin amphenol then the
remote will default to the 14-pin amphenols if a
remote is connected to one of the 14-pin amphe-
nols.

• If a remote control is connected to any of the

amphenols the WELD TERMINAL control will
default to REMOTE. If there are not any remote
control devices attached the WELD TERMINAL
control will default to ON.

CC-Stick modes

• The remote will default to only the 6-pin amphenol if

a remote is connected to it.

• The WELD TERMINAL control will default to ON

with or without a remote connected.

Types of Remote OUTPUT CONTROL

• The Invertec V350-Pro’s Output Control can be

controlled by either a potentiometer connected
between 77 & 75 with the wiper connected to 76 or
a 0V to 10V DC supply connected between 76 &
75. (76 needs to be positive)

• 14-Pin Amphenol lead 75 is pin G, lead 76 is pin F

and lead 77 is pin E.

• 6-Pin Amphenol lead 75 is pin C, lead 76 is pin B

and lead 77 is pin A.

Potentiometer Control

• The total resistance should be between 2000 ohms

(2K) and 10,000 ohms (10K)

• The machine output will be at minimum when lead

76 (wiper) is at the end of the potentiometer that is
connected to 75. The machine’s output will
increase as the wiper of the potentiometer is moved
to the end that is connected to 77. (Note: In TIG
mode, moving the lead 76 (wiper) to lead 77 would
produce the current that has been set by the
Invertec V350-Pro’s front panel Output Control.)

• Remotes of this type offered by Lincoln Electric are

the K857, K812 and K870.

Voltage Control

• The supply should be an isolated supply. (Not ref-

erenced to earth ground, any auxiliary power from
the Invertec V350-Pro or the welding output) The
supply should be capable of supplying at least
20mA.

• 0 volts supplied to 76 will set the Invertec V350-Pro

to minimum output for the mode that has been
selected while 10 volts supplied to 76 will set the
Invertec V350-Pro to the maximum output for the
mode. (Note: In TIG mode, 10 volts supplied to
lead 76 would produce the current that has been

Types of Remote WELD TERMINAL Control

• The Invertec V350-Pro’s Weld Terminals can be

controlled from each of the amphenol connectors.
The circuit has a nominal OCV of 15VDC and
requires a dry contact closure (less than 100 ohms)
to activate the output of the Invertec V350-Pro.

• 14 Pin Amphenols the Weld Terminals are controlled

from pins C (lead 2) and pin D (lead 4). Pin C is
positive.

• 6 Pin Amphenol the Weld Terminals are controlled

from pin D (lead 2) and pin E (lead 4). In the 6-pin
amphenol pin D is positive.

DESIGN FEATURES and ADVANTAGES

• Multiple process DC output range: 5 - 425 amps
• Pre-settable welding outputs.
• Built-in Line Voltage Compensation holds the output

constant over +/- 10% input fluctuations.

• State of the art inverter technology yields high

power efficiency, excellent welding performance,
lightweight, and compact design.

• Utilizes microprocessor control.
• Electronic over current protection.
• Input over voltage protection
• Manual reconnect switch located on the back panel

with a clear reconnect door to allow easy determi-
nation of input configuration. The reconnect door is
fastened with _-turn connectors that allow quick
and easy access to the reconnect area. Circuit
breaker protected auxiliary.

• System Self Configure. The power source ana-

lyzes the remote controls connected to the amphe-
nols and the desired welding mode to properly
determine the location of trigger and output control.

• Modular options for easy upgrades
• Back lit Status Lights for improved error communi-

cation

• Circuit Breaker Input Switch
• F.A.N. (fan as needed). Cooling fan runs only when

necessary

• Thermostatically protected.
• Designed to the IEC 974-1 Standard.
• IP23S protection rating with potted PC boards for

enhanced ruggedness/reliability.

• Modular construction for easy servicing.
• Aluminum Chassis and Wraparound
• 10 Ft. Power Cord included.

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