Lincoln Electric IM915 manual Figure b.5

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b-20

OPERATION

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4 STEP TRIGGER OPERATION

(See Figure B.5)

The 4 step trigger sequence gives the most flexibility when the Start, Crater and Burnback functions are active. This is a popular choice when welding alu- minum because extra heat may be needed during Start and less heat desired during Crater. With 4 step trigger, the welder chooses the amount of time to weld at the Start, Weld and Crater settings by using the gun trigger. Burnback reduces the likelihood of wire to sticking in the weld pool at the end of a weld and also prepares the end of the wire for the next arc start.

SEQUENCE OF OPERATION

Following is the total weld sequence that the Power Feed™ 10M Single Wire Feeder will execute. If any parameter is inactive or its time is set to zero, the weld procedure immediately shifts to the next parameter in the sequence.

1.PREFLOW: Shielding gas begins to flow immedi- ately when the gun trigger is pulled.

2.RUN-IN: After preflow time expires, the power source regulates to the start output and wire is advanced towards the work piece at the Strike WFS. If an arc is not established within 2.5 sec- onds, the power source output and wire feed speed skips to the weld settings.

3.START: The power source welds at the “Start” WFS and voltage until the trigger is released.

4.UPSLOPE: Once the trigger is released, both the machine output and the wire feed speed ramp up or down to the weld settings throughout the start time. The time period of ramping from the Start settings to the Weld settings is called UPSLOPE.

5.WELD: After Upslope, the power source output and the wire feed speed continue at the Weld settings.

6.DOWNSLOPE: Then as soon as the trigger is pulled, the wire feed speed and power source out- put ramp to the crater settings during the crater time. The time period of ramping from the weld set- tings to the crater settings is called DOWNSLOPE.

7.CRATER: Alter the Downslope time expires, the machine welds at the Crater WFS and voltage set- tings until ether the trigger is released or the Crater time expires.

8.BURNBACK: After the crater time expires, the wire feed speed is turned OFF and the machine output continues for the burnback time.

9.POSTFLOW: Next, the machine output is turned OFF and shielding gas continues to flow until the post flow timer expires.

FIGURE b.5

Run-In

POWER FEED™ 10M SINGLE WIRE FEEDER

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Contents Power Feed 10M Single Wire Feeder July Safety Depends on YouSafety Electric Shock can kill Welding and Cutting Sparks can Cause fire or explosion IiiPrécautions DE Sûreté Thank You TAbLE of Contents Vii Power Feed 10M Single Wire Feeder SPEC.# Type Input PowerTemperature Rating Welding Capacity RatingMounting Electric Shock can killLocation Weld CAbLE SIzINGPower Source COAxIAL Weld CAbLESElectrode Work DIP Switch #7 Position Polarity Negative Electrode PolarityPower Source Pin Function Welding Gun/Wire Feeder Trigger ConnectorWire Feeder Wire Feeder Pin FunctionChanging Drive Rolls and Wire Guides DescriptionDrive Roll Pressure Setting Changing the GUN Receiver bUSHINGWelding GUNS, Torches and ACCES- Sories GUN Receiver bUSHINGMagnum GUN and CAbLE ASSEMbLIES Wire Feed Shut Down Circuit Changing the Gear RatioTo change the gear ratio Spindle Placement Wire Reel LoadingDIP Switch #8 Position Gear Ratio Loading 16 to 44 lb .3 20kg SpoolsUsing K1504-1 Coil Reel Figure A.10Weld Wire Routing Loading 30 lb .6 kg Readi-Reels See Figure A.11Removing a Readi-Reel Shielding GAS Connection Cylinder may explode if damagedBUILDUP OF SHIELDING GAS may harm health or kill ExAMPLES of Connecting AN Arclink Power Wave System ARC Rays can burn Fumes and Gases can be dangerousWelding Sparks can cause fire or explosion Common Welding AbbREVIATIONSRequired Equipment Product DescriptionRecommended Processes Additional Required EquipmentCV Welding Pulse Welding or STT Welding Front Panel Controls and Connections Status LED Volts / Trim Display Prior to WeldingSynergic CV Voltage Display LAYOUT-CONTROLS see Figure b.3 Mode Select Panel 4 MSP4Overview LAYOUT-DIGITAL DisplayChanging ARC Wave Control POWER-UP SequenceChanging Weld Modes Infrared IR ControlLimit Setting Machine SETUP/USER PreferencesAccessing the Machine Setup Menu SET-UP Features Menu Figure b.3a Setup MenuUser Defined Parameters Parameter Definition Procedure Change Method Stall Factor AdjustmentReset Consumable Weight Parameter Definition Gun Offset AdjustmentCrater Delay TIG Gas ControlDisplay Trim as Volts Option Arc Start/Loss Error TimeParameter Definition Push-Pull Gun Knob behavior Sense From StudsParameter Definition Show Test Modes 100 View Diagnostics107 View Power Source Protocol 102 View Fatal Logs505 Setup Menu Lock 503 Memory button Disable504 Mode Select Panel Lock Parameter Definition 501 Encoder LockoutOnly be accessed using Power Wave Manager software Parameter Definition 506 Set User Interface Passcode509 UI Master Lockout Cold Feed / GAS Purge Switch Step / 4-STEP Trigger SwitchStep Trigger Operation Step Trigger Operation Sequence of OperationFigure b.5 Process Setup and Operation Non- SynergicModes Steel and Stainless Synergic GMAW-P Pulsed MIG Welding ARC ControlPulse-on-Pulse Welding Machine Functionality bY Weld Process CC Stick ModesCV GMAW/FCAW NON-SYNERGIC Output Control KNObS, Weld Mode 5Process Weld Mode CV NON-SYNERGIC ModesSynergic CV Modes Wire SIzE 030 035 045 052Gmaw Synergic Material Process GASWire SIzE Pulse and PULSE-ON-PULSE SynergicPulse and PULSE-0N-PULSE Modes WIR E S IZE MAW-S TT WE L D ModeSTT and STT II NONN-SYNERGIC 035 045 052Touch Start TIG Gtaw TIG WeldingGtaw Touch Start TIG Welding All Metals Touch Start TIGWeld Mode Searching Searching for a Weld ModeUser Memories Limit Setting Enable Accessories OptionalAccessories Lb. coils to 2 spindles Periodic Maintenance Safety PrecautionsRoutine Maintenance CALIbRATION SpecificationTROUbLESHOOTING POSSIbLE PRObLEMSSymptoms Cause Recommended Course of ActionArclink System Error Codes Your local Lincoln Authorized Output PRObLEMS TROUbLESHOOTING PRObLEMS POSSIbLE Power Feed 10M Single Wire Feeder14.56 18.48 15.80 30.46Power Feed 10M Single Wire Feeder Power Feed 10M Single Wire Feeder Precaucion Warnung
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