BASIC Modes of Operation, Mmaw, Gtaw | Lincoln Electric 450 CE

b-7	OPERATION	b-7

bASIC MODES OF OPERATION

MMAW

This weld mode is a constant current (CC) mode fea- turing continuous control from 15 – 500 amps. It is intended for the MMAW stick welding processes and arc gouging.

Hot Start - The Hot Start control regulates the starting current at arc initiation. Hot Start can be set to “Off” and no additional current is added at arc start. When set to the “On” position, additional current (relative to the preset current) at arc initiation.

Arc Control - The Arc Control regulates the Arc Force to adjust the short circuit current. The minimum setting (-10) will produce a "soft" arc and will produce minimal spatter. The maximum setting (+10) will produce a "crisp" arc and will minimize electrode sticking.

Weld Terminals On/Remote – Set to “On” so the machine is in the ready to weld state.

Voltage Display Meter – This display will display three dashed lines when the machine is in the idle state. This indicates that voltage is not settable in this weld mode. While output is enabled, the actual weld- ing voltage is displayed. After welding, the meter holds the actual voltage value for 5 seconds. Output adjustment while in the "hold" period results in the "prior to operation" characteristics. The displays blink indicating that the machine is in the "hold" period.

Amperage Display Meter – This display will display the pre-set welding current when the machine is in the idle state. While output is enabled, the actual weld amperage is displayed. After welding, the meter holds the actual amperage value for 5 seconds. Output adjustment while in the "hold" period results in the "prior to operation" characteristics. The displays blink indicating that the machine is in the "Hold" period.

Output Control Local/Remote – When the control is set to local (no remote potentiometer/control plugged into the 6-pin or 14-pin connectors), the output is con- trolled through the Output Control Dial on the front of the FLEXTEC™ 450 CE. Set this switch to “REMOTE” when an external potentiometer/control is connected.

•When a remote potentiometer is connected, the out- put control on the FLEXTEC™ 450 CE and the remote act as a master/slave configuration. Use the control dial on the FLEXTEC™ 450 CE to pre-set the maximum welding current. The remote will con- trol output from minimum to the pre-set maximum.

Output Control Dial

•When the Local/Remote is set to Local, this dial sets the welding amperage.

•When the Local/Remote is set to Remote, this dial sets the maximum welding amperage. The remote potentiometer than controls the amperage from min- imum to this pre-set maximum.

GTAW

This weld mode is a constant current (CC) mode featuring con- tinuous control from 10 – 500 amps. It is intended for the GTAW TIG welding processes.

Arc Control – This control is not used in the GTAW mode.

Weld Terminals On/Remote

•When set to the “ON” position, the weld terminals are at OCV (open circuit voltage) and ready to weld.

•When set to the “REMOTE” position, output is enabled through a remote trigger.

Voltage Display Meter – This display will display three dashed lines when the machine is in the idle state. This indicates that voltage is not settable in this weld mode. While output is enabled, the actual welding voltage is displayed. After welding, the meter holds the actual voltage value for 5 seconds. Output adjustment while in the "hold" period results in the "prior to operation" characteristics. The displays blink indicating that the machine is in the "hold" period.

Amperage Display Meter – This display will display the pre-set welding current when the machine is in the idle state. While output is enabled, the actual weld amperage is displayed. After welding, the meter holds the actual amperage value for 5 sec- onds. Output adjustment while in the "hold" period results in the "prior to operation" characteristics. The displays blink indicating that the machine is in the "hold" period.

Output Control Local/Remote – When the control is set to local (no remote potentiometer/control plugged into the 6-pin or 14-pin connectors), the output is controlled through the Output Control Dial on the front of the FLEXTEC™ 450 CE. Set this switch to “REMOTE” when an external potentiometer/control is connected.

•When a remote potentiometer is connected, the output control on the FLEXTEC™ 450 CE and the remote act as a master/slave configuration. Use the control dial on the FLEX- TEC™ 450 CE to pre-set the maximum welding current. The remote will control output from minimum to the pre-set maxi- mum.

Output Control Dial

•When the Local/Remote is set to Local, this dial sets the welding amperage.

•When the Local/Remote is set to Remote, this dial sets the maximum welding amperage.