Lincoln Electric IM467-B manual Operation

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B-11

B-11

OPERATION

1.POWER ON/OFF — A momentary start/stop pushbutton, which controls the input contactor. If the input power supply goes off or if the thermo- stat in the welder trips, the start pushbutton must be pressed to restart the welder.

2.PILOT LIGHT — Indicates when the input contac- tor is energized (power is on).

CAUTION

Do not switch polarity under load.

3.POLARITY SWITCH — Selects DC-/AC/DC+

4.FUSE F1 — 0.5 amp control circuit fuse protects the control transformer from overloads. Input overvoltage protection circuitry will blow this fuse to protect electronic components if the input volt- age to the welder is too high (more than 40% over rated voltage). If this fuse blows, the digital meters will not light and the input contactor will not latch when the Power On/Off Start pushbutton is pressed and released.

5.FUSE F2 — 1.5 amp gas, water, and high fre- quency fuse protects the circuitry that drives the gas and water valves and the high frequency sup- ply transformer. If this fuse blows, the valves and high frequency will not work. However, the LEDs for Gas and Water and High Frequency will still light.

6.REMOTE RECEPTACLE — A six-pin circular con- nector for an Arc Start switch or an Amptrol remote current control.

7.115 VOLT RECEPTACLE AND CIRCUIT BREAK- ER — A duplex 15 amp grounded NEMA 5-15R receptacle and 15 amp circuit breaker. Fifteen amps of 115 volt AC power is available continu- ously whenever the power is on. The circuit breaker button will pop out if it trips. Reset by pushing it in after the circuit breaker cools and the overload has been removed.

8.HIGH FREQUENCY INTENSITY CONTROL AND SPARK GAP — This control changes the high fre- quency intensity. Use the lowest intensity which still gives good arc starting to minimize Radio Frequency Interference (RFI). The spark gap is set at the factory to the normal setting marked on the cover plate. Instructions for larger or smaller gap settings are also on the cover plate.

9.GAS AND OPTIONAL WATER VALVES — Solenoid valves that open at the beginning of the Preflow time and close at the end of the Afterflow time.

The gas valve inlet and outlet are standard 5/18-18 right-hand female fittings. The water valve inlet and outlet are standard 5/8-18 left-hand female fit- tings. The fittings conform to CGA (Compressed Gas Association) standards. Use a water line strainer to prevent particles from jamming the water valve.

SQUARE WAVE TIG 355

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Contents Square Wave TIG Safety Electric Shock can kill Cylinder may explode if damaged Précautions DE Sûreté Thank You Table of Contents Section E Section CSection D P196 SeriesInstallation Technical Specifications Square Wave TIGHigh Frequency Interference Protection Safety PrecautionsSelect Suitable Location Input Supply Connection Input ConnectionsGround Connection Electric Shock can killReconnect Procedure Figure A.2 Input Supply ConnectionsVolt/Freq Nameplate AWG Copper Cond Table A.1 Recommended Input Wire and Fuse SizesTable A.2 Recommended Input Wire and Fuse Sizes Volt/Freq AC Output AWG Copper CondLengths up to 100 to 200 ft 200 to 250 ft Output ConnectionsTIG Torch Connection 100 ft 30 m 30 to 61 m 61 to 76 mStick Electrode Cable Connection Safety Instructions Operating InstructionsGeneral Description Operational Features and ControlsDesign Features and Advantages Recommended ProcessesWelding Capability LimitationsControls and Settings Upper Case Front ControlsHigh Frequency Switch Mode SwitchSTEP/4-STEP Switch Upper Case Front Control PanelAC Wave Balance VOLTS/AMPS SwitchPeak Current Control Auto Balance LEDStart Controls Spot ControlsPulse Controls Figure B.2 Status Indicator Light Sequence Square Wave TIG Crater Fill ControlsOperation Lower Case Front Controls Figure B.3 Lower Case Frontcontrols Square Wave TIGOperation Hand and Foot Amptrol Operation Operation Stick Welding Welding OperationInitial START-UP TIG Welding GuidelinesIllustrated in the 2-Step Mode for clarity Table B.1 Specific Effects of ControlsCrater Fill Switch on OFFSpot Switch OFF Start Switch onPulse Switch on Crater Fill Switch on Spot Switch onTable B.2 Typical Current RANGES1 for Tungsten ELECTRODES2 Dcen Dcep + Unbalanced Wave Balanced WaveTable B.3 Recommended Settings for TIG Welding TIG Welding Sequence Operation 2-STEP ModeTIG Welding Sequence Operation 4-STEP Mode Polarity SwitchALL Machines Auxiliary PowerOverload Protection Accessories OPTIONS/ACCESSORIESMaintenance Input Power Factor Capacitor Discharge ProcedureRoutine and Periodic Maintenance Figure D.2 General Component Locations Troubleshooting Guide General Machine TroubleTroubleshooting Guide Stick Welding Symptom Cause and RemedyTroubleshooting Guide TIG Welding TIG Welding Lower Panel Controls Accessories K870 Foot Amptrol or K963 Hand AmptrolDiagrams Dimension Print Square Wave TIG355 Equipment Installation Certification Equipment MANUFACTURER’S CertificationPage Precaucion Aviso DE
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