Lincoln Electric IM909 manual Operation

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B-4

OPERATION

B-4

 

 

 

•When the Polarity Switch is set to DC (- or +), the TIG mode provides high frequency only for starting.

Hi-Freq. turns on after pre-flow time with the arc start switch closure, and turns off when the arc is established*

•Also functions for DC+ polarity to permit "balling" of tungsten for AC TIG welding.

4.AC BALANCE CONTROL – The potentiometer control permits AC wave balance adjustment from Max. Penetration (~85% negative wave) with the control at Max. full CW position, to Max. Cleaning (~65% positive wave) with the control set near min- imum CCW position.

•Full minimum CCW position is the Auto Balance position which is indicated by the Green panel light turning on. This feature automatically provides the proper amount of cleaning and penetration for nor- mal AC TIG welding

•The mid position is the Balanced position (~50% positive and negative waves).

•The Balance control is only functional if the machine is set to AC polarity and TIG mode.

5.LOCAL/REMOTE CURRENT CONTROL SWITCH – A 2-position switch selects how the welding output is controlled for both Stick and TIG Modes:

•LOCAL (Top position) selects output control only by the machine panel Output Control. (See Item 6)

•REMOTE (Bottom position) selects output control to also be by an Amptrol (See Item 6), or other remote (10K pot) control connected to the Remote recepta- cle (See Item 11) This switch selection is indicted by the Green panel light turning on.

In either position the arc start switch functions when connected to the Remote receptacle (See Item 11).

6.MAXIMUM OUTPUT CONTROL – The large knob is used to set the output welding current over the rated output range of the machine.

•With the Current Control switch to LOCAL position, this knob sets the welding output level.

*Arc voltage and current are sensed to determine if the arc is established or out.

•With the Current Control switch to REMOTE posi- tion, this knob sets the maximum welding level that the Peak output can be set with the remote Amptrol.

•The new MicroStartTM Technology minimum current circuit provides for low end welding (down to 2 amps) previously unobtainable on an SCR platform TIG machine.

7.MINIMUM OUTPUT CONTROL AND DISPLAY SWITCH– A smaller knob is used to preset the minimum cur- rent level only for TIG mode. Pressing the Display (momentary) switch toggle left to Minimum Set posi- tion displays the Minimum control level setting on the Digital meter. (See Item 8)

•This knob sets the Start output level. When the arc lights (using a new built-in TIG start pulse) this level upslopes quickly (0.5 sec.) and smoothly to the weld output level. The setting range for this Start control is the 2 amp minimum range of the machine up to about 50 amps, but no more than the level set by the Maximum Output control knob (See Item 6), but otherwise is independent of the Maximum setting.

•This setting also serves as the Crater-fill level, it can also be selected (see Section B-7) to be either the Minimum Output control setting (same as Start set- ting) as shipped, or the minimum rating of the machine (2 amps).

•The Remote Amptrol range of control is between this Minimum setting and the Maximum Output con- trol knob setting, so these knobs can set the resolu- tion of the Amptrol. Also, the Minimum setting serves as both the minimum Amptrol start level when the arc start switch is closed, as well as the minimum Amptrol crater-fill level before the arc start switch is opened to help prevent premature arc out and Hi-Freq re-initiation.

•In STICK mode the Start control is not functional since Hot Start level is fixed, or internal Advanced Panel adjustable (see Section B-7). Pressing the Display (momentary) switch toggle left to Minimum Output position displays minimum amps rating of the machine.

PRECISION TIG 375

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Contents Precision TIG California Proposition 65 Warnings SafetyElectric Shock can kill Cylinder may explode if damaged Sûreté Pour Soudage a L’Arc Précautions DE SûretéSafety Safety Thank You Table of Contents Installation Rated Input Single Phase onlyPrecision TIG Physical Dimensions Recommended Input Wire and Fuse SizesTemperature Ranges Additional Output CapacitySafety Precautions Input and Grounding Connections Output CABLES, Connections and Limitations Work Cable ConnectionStick Electrode Cable Connection Figure A.2 TIG Torch ConnectionFigure A.3 Auxiliary Power ConnectionsFigure A.4 Robotic Interface ConnectionProduct Description OperationPipe Thawing Welding SparksRecommended Processes Recommended Processes and EquipmentProcess Limitations Equipment LimitationsFigure B.1 Control Panel Controls and SettingsOperation Advanced Panel Controls Do not USE 4-STEP if Using AN Amptrol RemoteOperation Internal SET UP Controls TIG Welding FeaturesStick Welding Features Figure B.3 Figure B.4 TIG Weld Cycle Chart Setup Guidelines for TIG Welding with AN AmptrolUsing the Start Pedal Foot Amptrol K870-1 Figure B.5 Recommended Electrode Amperage Ranges Precision TIG Making a TIG Weld with AN AmptrolFactory Installed Options AccessoriesField Installed Options Optional EquipmentSafety Precautions MaintenanceRoutine and Periodic Maintenance Overload ProtectionComponent Access Service ProceduresSpark GAP Adjustment UNDER-COOLER ServiceHOW to USE Troubleshooting Guide TroubleshootingSymptoms Output ProblemsCourse of Action GAS Problems Meter ProblemsHI-FREQ Problems Preset & Output Control Problems TIG Welding Problems Stick Welding ProblemsTIG Problems Precision TIG 375 Wiring Diagram for Code L11660 Dimension PrintPage Page Warnung Aviso DE

IM909 specifications

Lincoln Electric IM909 is an innovative industrial multi-process inverter welder designed to provide exceptional flexibility, performance, and user-friendly operation for a wide range of welding applications. This versatile machine is suitable for both novice and experienced welders, making it an ideal choice for workshops, fabrication shops, and maintenance operations.

At the core of the IM909 is its multi-process capability, allowing users to perform MIG, TIG, and stick welding operations. This means that a single machine can cater to various welding needs, from thin sheet metal to heavy structural projects, providing great versatility in welding materials like steel, stainless steel, and aluminum. The IM909 is designed to meet the demands of today’s welding professionals, enabling seamless transitions between different welding processes without sacrificing performance.

One of the standout features of the IM909 is its advanced inverter technology. The inverter design not only makes the welder compact and lightweight but also enhances energy efficiency and improves arc stability. This results in better control over the welding process, leading to higher quality welds with reduced spatter. Additionally, the IM909 boasts a wide output range, allowing it to handle various welding thicknesses effectively.

Another significant characteristic of the IM909 is its user-friendly interface. The machine comes equipped with a digital display that provides clear readouts of current settings, making it easy for users to monitor and adjust parameters on the fly. Moreover, the intuitive controls simplify the setup process, streamlining operations for users of all experience levels.

Safety is always a top priority in welding operations, and the IM909 integrates several protective features, including over-temperature protection and circuit breaker safeguards. These elements ensure the durability of the machine and protect both the welder and the equipment from potential hazards.

In conclusion, the Lincoln Electric IM909 multi-process inverter welder stands out as a reliable, efficient, and adaptable welding solution. Its combination of advanced inverter technology, multi-process capabilities, user-friendly operation, and safety features makes it an excellent investment for any welding professional looking for quality and versatility in their equipment. Whether performing intricate fabrication work or tackling heavy-duty welding tasks, the IM909 delivers exceptional performance across a wide range of applications.
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