Operation – Lincoln Electric INVERTEC V350-PRO IM708 User Manual

Page 17

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B-4

OPERATION

B-4

TIG mode

The remote will default to the 6-pin amphenol if a

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 amphenols.

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 con-
trol 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 (CE)

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 pro-
duce the current that has been set by the Invertec
V350-PRO (CE)

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 refer-

enced to earth ground, any auxiliary power from the
Invertec V350-PRO (CE) 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 (CE) to minimum output for the mode that has
been selected while 10 volts supplied to 76 will set
the Invertec V350-PRO (CE) to the maximum output
for the mode. (Note: In TIG mode, 10 volts supplied
to lead 76 would produce the current that has been
set by the Invertec V350-PRO (CE)

s front panel

Output Control.)

Types of Remote WELD TERMINAL Control

The Invertec V350-PRO (CE)

s Weld Terminals can

be controlled from each of the amphenol connec-
tors. 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
(CE).

14 Pin Amphenols the Weld Terminals are controlled

from pins C (lead 2) and pin D (lead 4). Pin C is posi-
tive.

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 determina-
tion of input configuration. The reconnect door is
fastened with 1/4-turn connectors that allow quick
and easy access to the reconnect area. Circuit
breaker protected auxiliary.

System Self Configure. The power source analyzes

the remote controls connected to the amphenols
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.

IP21S protection rating with potted PC boards for

enhanced ruggedness/reliability.

Modular construction for easy servicing.

Aluminum Chassis and Wraparound

Power Cord included.

V350-PRO (CE)

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