Step Trigger Operation | Lincoln Electric IM915 instruction

b-19	OPERATION	b-19

2 STEP TRIGGER OPERATION

(See Figure B.4)

Sometimes it is advantageous to set specific arc start, crater and arc ending parameters for the ideal weld. Many times when welding aluminum crater control is necessary to make a good weld. This is done by set- ting Start, Crater and Burnback functions to desired values.

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 & UPSLOPE: As soon as the trigger is pulled, this starts preflow. The Strike arc estab- lished, Start time, and Upslope parameters are used at the beginning of the weld sequence to establish a stable arc and provide a smooth transi- tion to the weld settings.

4.WELD: After upslope, the power source output and the wire feed speed continue at the weld settings.

5.CRATER: As soon as the trigger is released, the wire feed speed and power source output ramp to the crater settings throughout the crater time. The time period of ramping from the weld settings to the crater settings is called DOWNSLOPE.

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

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

FIGURE b.4

Run-In

2.5

POWER FEED™ 10M SINGLE WIRE FEEDER

Image 41

Lincoln Electric IM915 manual Step Trigger Operation, Sequence of Operation

Contents

Safety Depends on You Power Feed 10M Single Wire Feeder July Safety Electric Shock can kill Iii Welding and Cutting Sparks can Cause fire or explosion Précautions DE Sûreté Thank You TAbLE of Contents Vii Temperature Rating SPEC.# Type Input PowerPower Feed 10M Single Wire Feeder Welding Capacity Rating Location Electric Shock can killMounting Weld CAbLE SIzING Electrode Work Power SourceCOAxIAL Weld CAbLES Negative Electrode Polarity DIP Switch #7 Position Polarity Wire Feeder Welding Gun/Wire Feeder Trigger ConnectorPower Source Pin Function Wire Feeder Pin Function Description Changing Drive Rolls and Wire Guides Changing the GUN Receiver bUSHING Drive Roll Pressure Setting Magnum GUN and CAbLE ASSEMbLIES Welding GUNS, Torches and ACCES- SoriesGUN Receiver bUSHING To change the gear ratio Wire Feed Shut Down CircuitChanging the Gear Ratio DIP Switch #8 Position Gear Ratio Wire Reel LoadingSpindle Placement Loading 16 to 44 lb .3 20kg Spools Figure A.10 Using K1504-1 Coil Reel Removing a Readi-Reel Weld Wire RoutingLoading 30 lb .6 kg Readi-Reels See Figure A.11 BUILDUP OF SHIELDING GAS may harm health or kill Shielding GAS ConnectionCylinder may explode if damaged ExAMPLES of Connecting AN Arclink Power Wave System Welding Sparks can cause fire or explosion Fumes and Gases can be dangerousARC Rays can burn Common Welding AbbREVIATIONS Recommended Processes Product DescriptionRequired Equipment Additional Required Equipment CV Welding Pulse Welding or STT Welding Front Panel Controls and Connections Status LED Synergic CV Voltage Display Volts / Trim DisplayPrior to Welding Overview Mode Select Panel 4 MSP4LAYOUT-CONTROLS see Figure b.3 LAYOUT-DIGITAL Display Changing Weld Modes POWER-UP SequenceChanging ARC Wave Control Infrared IR Control Accessing the Machine Setup Menu Limit SettingMachine SETUP/USER Preferences Figure b.3a Setup Menu SET-UP Features Menu User Defined Parameters Stall Factor Adjustment Parameter Definition Procedure Change Method Crater Delay Parameter Definition Gun Offset AdjustmentReset Consumable Weight TIG Gas Control Parameter Definition Push-Pull Gun Knob behavior Arc Start/Loss Error TimeDisplay Trim as Volts Option Sense From Studs 107 View Power Source Protocol 100 View DiagnosticsParameter Definition Show Test Modes 102 View Fatal Logs 504 Mode Select Panel Lock 503 Memory button Disable505 Setup Menu Lock Parameter Definition 501 Encoder Lockout 509 UI Master Lockout Only be accessed using Power Wave Manager softwareParameter Definition 506 Set User Interface Passcode Step Trigger Operation Cold Feed / GAS Purge SwitchStep / 4-STEP Trigger Switch Sequence of Operation Step Trigger Operation Figure b.5 Modes Process Setup and OperationNon- Synergic ARC Control Steel and Stainless Synergic GMAW-P Pulsed MIG Welding Pulse-on-Pulse Welding CC Stick Modes Machine Functionality bY Weld Process Process Weld Mode Output Control KNObS, Weld Mode 5CV GMAW/FCAW NON-SYNERGIC CV NON-SYNERGIC Modes Gmaw Synergic Wire SIzE 030 035 045 052Synergic CV Modes Material Process GAS Pulse and PULSE-0N-PULSE Modes Wire SIzEPulse and PULSE-ON-PULSE Synergic STT and STT II NONN-SYNERGIC MAW-S TT WE L D ModeWIR E S IZE 035 045 052 Gtaw Touch Start TIG Welding Gtaw TIG WeldingTouch Start TIG All Metals Touch Start TIG User Memories Weld Mode SearchingSearching for a Weld Mode Limit Setting Enable Optional Accessories Accessories Lb. coils to 2 spindles Routine Maintenance Safety PrecautionsPeriodic Maintenance CALIbRATION Specification TROUbLESHOOTING Symptoms PRObLEMSPOSSIbLE Cause Recommended Course of Action Arclink System Error Codes Your local Lincoln Authorized Output PRObLEMS TROUbLESHOOTING PRObLEMS POSSIbLE Feeder Power Feed 10M Single Wire 30.46 14.56 18.48 15.80 Power Feed 10M Single Wire Feeder Power Feed 10M Single Wire Feeder Precaucion Warnung