Lincoln Electric IM827-D manual Figure b.5

Page 41

b-18

OPERATION

b-18

 

 

 

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.STRIKE: 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 1.5 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.

 

Pulled

 

Trigger

Idle

Preflow

1

Shielding On Gas

Off

Arc Established

Trigger Released

Strike

Start

2

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FIGURE b.5

Trigger Pulled

Upslope Weld Downslope

4

5

6

Trigger Released

Crater Burnback Postflow Idle

7 8 9

 

Weld

Power

1.5 sec

Max.

Source

Star t

Output

Crater

 

Off

Weld

Star t

WFS Crater

Strike

Off

Burnback

Time

POWER FEED™ 10M SINGLE WIRE FEEDER

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Contents Safety Depends on You Power Feed 10M Wire FeederCalifornia Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding and Cutting Sparks can Cause fire or explosionPrécautions DE Sûreté On-Line Product Registration Please Examine Carton and Equipment For Damage ImmediatelyTAbLE of Contents TAbLE of Contents SPEC.# Type Input Power InstallationTemperature Rating Power Feed 10M Single Wire FeederElectric Shock can kill Wire Drive Mounting See Figure A.1Location MountingWeld CAbLE Connection Weld CAbLE SIzINGWeld CAbLE SIzES Electrode LeadNegative Electrode Polarity COAxIAL Weld CAbLESAVAILAbLE Control CAbLE Control CAbLE SpecificationsControl CAbLE Connections Description Changing Drive Rolls and Wire GuidesChanging the GUN Receiver bUSHING Drive Roll Pressure SettingSet the drive roll pressure by To change the gun bushingMagnum 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 SpoolsFigure A.10 Using K1504-1 Coil ReelRemoving a Readi-Reel Weld Wire RoutingLoading 30 lb .6 kg Readi-Reels See Figure A.11 Shielding GAS Connection 13INSTALLATIONA-13ExAMPLES of Connecting AN Arclink Power Wave System Wire Drive BOOM ConfigurationControl bOx CV Welding Pulse Welding or STT WeldingFumes and Gases can be dangerous OperationWelding Sparks can cause fire or explosion ARC Rays can burnCommon Welding AbbREVIATIONS Definitions of Welding ModesProduct Description Recommended ProcessesAdditional Required Equipment Required EquipmentProcess Limitations Equipment LimitationsFront Panel Controls and Connections Status LED Synergic CV Voltage Display Volts / Trim Display and Output KNObPrior to Welding Overview Mode Select Panel 4 MSP4LAYOUT-CONTROLS see Figure b.3 LAYOUT-DIGITAL DisplayChanging Weld Modes POWER-UP SequenceChanging ARC Wave Control Infrared IR ControlAccessing the Machine Setup Menu Limit SettingMachine SETUP/USER Preferences Figure b.3a Setup Menu SET-UP Features MenuUser Defined Parameters Stall Factor Adjustment Parameter Definition Procedure Change MethodCrater Delay Parameter Definition Gun Offset AdjustmentReset Consumable Weight TIG Gas ControlDefinition Push-Pull Gun Knob behavior Arc Start/Loss Error TimeDisplay Trim as Volts Option Sense From Studs107 View Power Source Protocol 100 View DiagnosticsParameter Definition Show Test Modes 101 View Event LogsStep Trigger Operation Cold Feed / GAS Purge Switch Step / 4-STEP Trigger SwitchStep Trigger Sequence of Operation Step Trigger OperationFigure b.5 Modes Process Setup and OperationNon- Synergic ARC Control Steel and Stainless Synergic GMAW-P Pulsed MIG WeldingPulse-on-Pulse Welding CC Stick Modes Machine Functionality bY Weld ProcessOutput Control KNObS, Weld Mode 5 Process Weld ModeCV GMAW/FCAW NON-SYNERGIC CV NON-SYNERGIC ModesGmaw Synergic Wire SIzE 030 035 045 052Synergic CV Modes Material Process GASPulse and PULSE-0N-PULSE Modes Wire SIzEPulse and PULSE-ON-PULSE Synergic 035 045 052 STT and STT II SynergicSTT and STT II Modes Gtaw Touch Start TIG Welding Gtaw TIG WeldingTouch Start TIG All Metals Touch Start TIGUser Memories DIP Switch SettingsHigh Limit Limit SettingLow Limit AttributeOptional AccessoriesAccessories Lb. coils to 2 spindles Safety Precautions MaintenanceRoutine Maintenance CALIbRATION Specification1TROUbLESHOOTINGE-1 Symptoms Cause Course of Action PRObLEMS POSSIbLERecommended ErrNo Heart beat response from See what to Do on Err Error Codes for the Power Wave TROUbLESHOOTING Other SymptomsThree Dashes PRObLEMSCause Recommended Course of Action Error Codes LINC-NET System Error CodesYour local Lincoln Authorized Arclink System Error CodesField Service Facility PRObLEMS POSSIbLE Output PRObLEMS TROUbLESHOOTING Recommended Feeder DiagramsPower Feed 10M Single Wire Diagrams 30.46 Dimension Print14.56 18.48 15.80 Precaucion Warnung
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