Yeswelder YWT-211 ACDC Operator's Manual

Ac/dc hf tig, ac/dc pulse tig, stick, lift tig, cold spot tig, and stick

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YWT-211 ACDC

AC/DC HF TIG, AC/DC PULSE TIG, STICK, LIFT TIG,

COLD SPOT TIG, AND STICK

Aug., 2023

OPERATOR'S MANUAL

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Page 2 Congratulations on your new YesWelder product! YesWelder creates quality products at dis- counted prices to make welding affordable to everyone. To help us serve you better and for further questions, visit www.yeswelder.com. Thank you for your purchase.
Page 3: Table Of Contents
TABLE OF CONTENTS SAFETY ········································································································· 01 - 04 INSTALLATION ··································································································· 05 ACCESSORIES ···································································································· 06 DESCRIPTION ··································································································· 07-12 OPERATION ······································································································· 13-30 CAUTION ············································································································· 31 BASIC KNOWLEDGE OF WELDING ······································································ 32-38 OPTIONAL ACCESS OPERATION DESCRIPTION ······················································ 39 MAINTENANCE ······································································································ 40 TROUBLESHOOTING ······················································································ 41-43 WIRING DIAGRAM ··································································································...
Page 4: Safety
SAFETY DEPENDS ON YOU If you develop unusual symptoms, see your supervisor. Per- YESWELDER arc welding and cutting equipment are designed haps the welding atmosphere and ventilation system should be and built with safety. However, your overall safety can be in- checked.
Page 5: California Proposition 65 Warnings
SAFETY If fuel is spilled, wipe it up and do not start engine until fumes have been eliminated. WARNINGS 1.d. Keep all equipment safety guards, covers and devices in position and in good repair. Keep hands, hair, clothing and tools away from V- belts, gears, fans and all other moving CALIFORNIA PROPOSITION 65 WARNINGS parts when starting, operating or repair-...
Page 6: Electric Shock Can Kill
SAFETY ELECTRIC SHOCK ARC RAYS CAN BURN. CAN KILL. 3.a. The electrode and work (or ground) cir- 4.a. Use a shield with the proper ﬁlter and cover plates to pro- cuits are electrically “hot” when the tect your eyes from sparks and the rays of the arc when welder is on.
Page 7 SAFETY CYLINDER MAY EXPLODE IF WELDING AND CUTTING DAMAGED. SPARKS CAN CAUSE FIRE OR EXPLOSION. 7.a. Use only compressed gas cylinders con- taining the correct shielding gas for the process used and properly operating reg- ulators designed for the gas and pres- 6.a.
Page 8: Installation
SELECT SUITABLE LOCATION Locate the YWT-211 ACDC in a dry place with free clean air cir- culation to minimize the chance of dirt accumulation that can block air passages and cause overheating.
Page 9: Accessories
ACCESSORIES 1. Welder 5. 13' WP-26 TIG Torch 2. Work Clamp (M16X1.5 Gas & ElectricConnector, 3. Electrode Holder 5-pin Control Cable) 4. 220V~110V Power Plug 6. 5/8"-18RH Gas Hose 7. Operator’s Manual...
Page 10: Description
DESCRIPTION PRODUCT DESCRIPTION (PRODUCT CAPABILITIES) This small portable welder is capable of HF TIG, LIFT TIG, PULSED HF TIG, COLD SPOT TIG, AND STICK on steel, mild steel, stainless steel and aluminum. GTAW(TIG) welding stands for Gas Tungsten Arc Welding and produces the weld with a non-consumable tungsten electrode. Inert gas is used during the precision welding process and it works as a shield to protect the weld from contamination.
Page 11 Panel Controls 1. Operation Panel: Permits function selection and parameters setting. 2. Trademark 3. Value Adjusting/Function Knob: Permits selecting and adjusting parameters. 4. Negative Output Receptacle: Connection for work lead (SMAW). 5. Torch Connector: Permits attaching the TIG gas and electric connector. 6.
Page 12: Panel Description
Panel Description Digital Display 1. Parameter Value or Error Code 2. Unit Selection 3. Amperage Indicator 4. Weld Time Selection (S) 5. Spot Time Selection (MS) 6. AC Frequency or Pulse Frequency 7. AC Balance (Clearance Width) or Duty Cycle (Pulse Width) 8.
Page 13 SMART Selection-Angle 1. Welding Angle Selection 2. Flat 3. Vertical 4. Overhead SMART Selection-Thickness 1. Aluminum Thickness-Selection 2. 18GA 1.0mm 3. 16GA 1.3mm 4. 14GA 1.6mm 5. 1/8" 3.2mm 6. 3/16" 5.0mm Parameters Selection 1. Pre-ﬂow 2. Initial Current 3. Upslope Time 4.
Page 14 DESCRIPTION Welding Parameters Setting Press rotary encoder potentiometer to adjust welding parameters based on actual demands. The parameters’ setting can be done during no load or in the middle of welding without affecting welding. Welding Torch Switch Initial Up Slope Background Pulse Pre-ﬂow...
Page 15 DESCRIPTION Torch Switch Arc Force Down Slope Clearance Welding Mode Crater Current Post-ﬂow AC Frequency Mode Current Time Width ● × × × × × Stick × ● ● ● × × × ● ● ● × × DC TIG ×...
Page 16: Operation
“X” row lists duty cycle percentages while the “I2” row lists the amp draw corresponding to the duty cycle. Various duty cycles at other amperages are listed on your data plate. S/N: MODEL: YWT-211 ACDC ANSI/IEC STD.60974-1 =110V =220V 5A/10.2V~140A/15.6V...
Page 17: Welding Preparation
Welding Preparation The key to making a good weld is preparation. It includes studying the process and equipment and practicing welding before attempting to weld the ﬁnished product. An organized, safe, ergonomic, comfortable, and well-lit work area should be prepared for the operator.
Page 18 Press the Pulse Button to choose common HF TIG or Pulse TIG welding PULSE DC Pulse TIG has the following characteristics: 1) Pulse welding alternates the welding current between a peak (high) and background (lower) current value during welding. 2) This means the welding arc alternates between a high and low current setting on a regular interval which allows for welding on thin materials without burn-through and on thermally sensitive materials.
Page 19 Pulse AC TIG COLD SPOT TIG PULSE Pulse AC TIG Cold Spot Welding Press the button to set the spot TIG welding. COLD SPOT TIG COLD SPOT TIG Spot welding is quick and easy and creates a strong join. It doesn’t use any ﬂux or ﬁller metal, so there is no need to grind excess slag when ﬁnished, and there is no dangerous open ﬂame.
Page 20 STICK HF TIG LIFT TIG Torch Operation Selection When under TIG mode or digital controlled torch mode, press to select different torch control modes based on actual welding demands. Remote Control Torch Operation Selection 2T/4T Mode No. Operation Torch Trigger Operation and Current Curve Standard 2T mode: 1.
Page 21 Welding Tips: • Always weld clean, dry and well-prepared material. • Hold the torch at a 45° angle to the workpiece with gas cup about 1/2" from the surface. • Move the torch smoothly and steadily as you weld. • Avoid welding in very drafty areas. A draft will fail the shielding gas protection and lead to a porosity defect. •...
Page 22 Torch Assembling Match Collet and Collet Body size tungsten electrode. Ÿ Thread the Collet Body into the front of the Torch. Ÿ Match the size of the Ceramic Nozzle to shielding gas requirements for workpiece material thickness (see Settings Chart). Thread Ÿ...
Page 23 1. Cermic Gas Nozzle 2. Collet Body 3. Collet 4. Insulator Torch Body 5. Torch Head 6. Back Cap TIG Electrodes Speciﬁcation Reference Table Current Ranges Recommendation for Tungsten Electrodes Recommended Welding Current Electrode Dia. DCEN(A) AC (A) 1/16" 70-150 60-120 3/32"...
Page 24 TIG Electrodes Speciﬁcation Reference Table Settings Chart Material Tungsten Tungsten Filler Filler Metal Ceramic Gas Flow Material Amps Gas Flow Thickness Color Dia. Metal Diameter Nozzle size Rate(SCFH) Grey, Orange, Mild Steel 1/16" 55~90 1/16" ER70S-2 1/16" 11-12 Red, White Grey, Orange, Mild Steel 1/32"...
Page 25 DC TIG Parameters Process Parameter Description 220V 110V Default/Recommendation PRE FLOW Pre-ﬂow 0.1~15s 0.1~15s 0.3s Istart Initial Current 5~160A 5~80A SLOPE UP UpSlope Time 0~10s 0~10s DC TIG Peak Current 5-200A 5~140A SLOPE DOWN Downslope Time 0~15s 0~15s Istop Crater Current 5~200A 5~100A POST FLOW...
Page 26 AC Square Wave TIG Welding I0-Initial Current, I1-Welding Current, I2-Pilot Arc Current, tu-Upslope Time, td-Downslope Time tp-AC Period, tc-Cathode Current Time Fig 16 AC Square Wave TIG Current Change Waveform In AC square wave TIG welding, the pre-ﬂow time and post-ﬂow time are the same with those in DC TIG welding, and others are de- scribed as below.
Page 27 AC Pulse TIG Welding tc-Cathode Current time, tp-AC Period Tp-Pulsed Peak Current Time, T-Pulse Period Fig 17 AC Pulse TIG Current Change Waveform AC pulse TIG welding is almost the same as AC square wave TIG welding, and what makes them different is that in AC pulsed TIG welding, the welding current varies with the pulse, peak current, and base current is generated because the welding current is con- trolled by a low-frequency pulse.
Page 28 SMART Function Smart Set makes welding easy by taking the guesswork out of AC TIG welding settings. Simply select welding angle ( ﬂat, vertical, or overhead) and Aluminum thickness; the machine will recommend the ideal parameters such as amperage, preﬂow, post ﬂow, upslope time, downslope time, AC balance, etc.
Page 29: Lift Tig Welding
Lift TIG Welding Operation: Plug the 5-pin torch control switch cable into to Trigger Connector Receptacle. Ÿ Connect the work clamp to the welder’s Positive (+) Output Receptacle, ensure it has good contact with the workpiece on a clean, Ÿ bare metal surface free of rust, paint, or coating.
Page 30 Spot TIG Welding It is primarily the duration of the spot welding action that is deﬁned - three seconds, for instance. Just pressing the torch trigger once is therefore sufﬁcient for the arc to ignite on its own, burn, and extinguish automatically once the deﬁned time has elapsed. Operation: Trigger the torch switch to start spot welding, release the trigger to stop spot welding.
Page 31: Set Up For Stick Welding (Smaw)
Spot TIG Welding Parameter Recommendation Welding Tungsten Tungsten Tip Thickness Current Welding Time Recommendation Gas Flow Joints Dia. Shapes 0.5mm 2-20ms 160A 4ms 0.023" 240A 2l/min 2.4mm Butt Joint 0.119cfm 3/32" 1.0mm 4-20ms 160A 8ms .040" 240A 90° 0.5mm 120- 4-10ms 160A 8ms 0.023"...
Page 32 Turn the power source on and select the Stick function with Process Selection Button on the front panel. Ÿ Set the amperage with the Value Adjusting Knob. Ÿ Strike the electrode against the workpiece to create an arc and hold the electrode steady to maintain the arc. Ÿ...
Page 33 YesWelder YWT-211 ACDC has a VRD feature embedded in this welder and activates when the welder is on. It reduces the voltage of the open circuit to a safer level, thus reducing the chances of electric shock in case the wrong connection is for cutting the torch...
Page 34: Caution
CAUTION Working Environment Welding should be carried out in a dry environment with humidity of 90% or less. Ÿ The working environment temperature should be between -10°C and 40°C. Ÿ Avoid welding in the open air unless sheltered from sunlight and rain. Keep the welder dry. Ÿ...
Page 35: Basic Knowledge Of Welding
BASIC KNOWLEDGE OF WELDING Basic Knowledge of Stick Shielded Metal Arc Welding (SMAW/Stick). is arc welding by manually operating electrodes. Stick requires simple equipment and is a convenient, ﬂexible, and adaptive welding processing type. Stick welding is applied to various metal materials with thicknesses of more than 3/32".
Page 36 BASIC KNOWLEDGE OF WELDING a) Flat Welding b) Vertical Welding 3) Arc Igniting Arc igniting is the process of producing a stable arc between electrode and workpiece in order to heat them to implement welding. Common arc ignition mode includes scraping mode and striking mode. During welding, touch the surface of the workpiece with the end of the electrode by scraping or light striking to form a short circuit, and then quickly lift the electrode 2~4mm away to ignite the arc.
Page 37 BASIC KNOWLEDGE OF WELDING electrode welding direction welding direction electrode workpiece workpiece 1. downwards feed 2. move toward welding direction 3. transversely swing 6) Arc Extinguishing Arc extinguishing is unavoidable during welding. Poor arc extinguishing may bring shallow weld craters and poor density and strength of weld metal by which cracks, air holes, slag inclusion, and shortage the like are easy to be produced.
Page 38 BASIC KNOWLEDGE OF WELDING Nozzle Molten pool Tungsten electrode Filler wire Shield gas Weld bead Since argon is a kind of inert gas and it does not react with metals, the alloying elements in the weld metal will not be burned out and the metal molten pool can be fully protected from oxidation.
Page 39 BASIC KNOWLEDGE OF WELDING GTAW Process 1. Preweld cleaning Clean the electrode and the zone near the weld joint of the workpiece, and remove impurities such as oil pollution and the oxidized ﬁlm on the surface of the metal before carrying out GTAW (TIG) with Argon to ensure good quality of weld bead. The methods for preweld cleaning are: mechanical cleaning, chemical cleaning and chemical &...
Page 40 BASIC KNOWLEDGE OF WELDING Welding Process Parameters The gas protective effect, welding stability, and weld bead quality of GTAW have a direct relationship with the welding process pa- rameters. Therefore, select appropriate welding process parameters to ensure high-quality weld joint. The welding process parameters for GTAW include type and polarity of current, the diameter of tungsten electrode, welding current, argon gas ﬂow, welding speed, and process factors, etc.
Page 41 BASIC KNOWLEDGE OF WELDING The workpiece is not cut fully. This may be caused by: The cutting current is too low. The cutting speed is too high. The electrode and nozzle of the torch are burned. The workpiece is too thick. Molten slag drops from the bottom of workpiece.
Page 42: Optional Access Operation Description
OPTIONAL ACCESS OPERATION DESCRIPTION Foot Pedal Operation Operation Pedal remoter control internal structure is composed by inching switch and sliding potentiometer (10K), as shown in below. The pedal controlling function is only used while it’s set to TIG mode. Connect the foot pedal controller to the welder front panel pedal controller interface through dedicated cable. Ÿ...
Page 43: Maintenance
If you do not understand or are unable to perform the column describes possible symptoms that the machine may ex- Recommended Course of Action safely, contact YESWELDER hibit. Find the listing that best describes the symptom that the ma- support@yeswelder.com.
Page 44: Troubleshooting
TROUBLESHOOTING TIG WELDING ISSUES PROBLEM POSSIBLE CAUSE COURSE OF ACTION Poor work clamp connection. Check and secure work connection. Poor starting. Start current is too low. Increase start current. Oily or organic contamination on work Clean work piece. Tungsten electrode may be contaminated. Grind to clean electrode.
Page 45 TROUBLESHOOTING TIG WELDING ISSUES PROBLEM POSSIBLE CAUSE COURSE OF ACTION Check the gas is connected and cylinder valve open, check No gas, incorrect gas ﬂow. hoses, gas valve and torch are not restricted. Set the gas ﬂow between 20-30 CFH ﬂow rate. Poor work clamp connection.
Page 46 TROUBLESHOOTING STICK WELDING ISSUES PROBLEM POSSIBLE CAUSE COURSE OF ACTION Poor starting. Poor work clamp connection. Check and secure work connection S t i c k e l e c t r o d e Current may be set too high for electrode “blasts off”...
Page 47: Wiring Diagram
WIRING DIAGRAM...
Page 48 WE ALWAYS STAND BEHIND IT Toll Free (855) 937-4567...

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