Lincoln Electric FX450 BASIC Modes of Operation, Weld Terminals On/Remote Toggle Switch, Smaw

b-6 OPERATION b-6

Amperage Display Meter

•Prior to STICK or TIG operation (current flow), the meter displays preset current value.

•Prior to CV operation, the meter displays four dash- es indicating non-presettable AMPS.

•During welding, this meter displays actual average amps.

•After welding, the meter holds the actual current 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

Weld Terminals On/Remote Toggle Switch

•This switch determines the trigger location.

•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.

Control - Local/Remote Toggle Switch

•Set the switch to “Local” to control output at the machine by the Output Control dial.

•Set the switch to “REMOTE” to control output via a remote device (K857 hand amptrol or K870 foot amptrol) connected to the 6-pinremote connector or a wire feeder connected to the 14-pinconnector.

Thermal Light

•This status light indicates when the power source has been driven into thermal overload. If the output terminals were "ON", the output will be turned back on once the unit cools down to an acceptable tem- perature level. If the unit was operating in the "REMOTE" mode, the trigger will need to be opened before or after the thermal has cleared and closed after the machine has cooled down to an acceptable temperature to establish output.

bASIC MODES OF OPERATION

SMAW

This weld mode is a constant current (CC) mode fea- turing continuous control from 15 – 500 amps. It is intended for the SMAW 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 FX450. Set this switch to “REMOTE” when an external potentiometer/control is connected.

•When a remote potentiometer is connected, the out- put control on the FX450 and the remote act as a master/slave configuration. Use the control dial on the FX450 to pre-set the maximum welding current. The remote will control 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.

FX450 (RED-D-ARC)