Lincoln Electric IM708 manual TIG mode, Types of Remote Output Control, Potentiometer Control

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)