OTC Welbee M350L II Owner's Manual
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OTC Welbee M350L II Owner's Manual

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OWNER'S MANUAL
Welbee M350L II
July, 2021
DAIHEN Corporation
Manual No. : P30356-1

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Summary of Contents for OTC Welbee M350L II

  • Page 1 OWNER'S MANUAL Welbee M350L II July, 2021 DAIHEN Corporation Manual No. : P30356-1...
  • Page 2 Preliminaries Forward Thank you for your purchase of OTC's welding power source. This Owner's Manual (hereafter referred to as "this manual") explains the following points for safe use of the product. • Caution regarding the product • Welding operation/setting method •...

  • Page 3: Important Information

    If this manual is lost or damaged, immediately contact your dealer. Copyright This manual is copyrighted and all rights are reserved by OTC. Any part of the manual shall not be copied, photocopied, or reproduced without the prior consent of OTC.

  • Page 4: Table Of Contents

    ABLE OF ONTENTS TABLE OF CONTENTS Important Information ......1 4.2.4 Connection of voltage detection cable (Voltage detection cable is used) .
  • Page 5 ABLE OF ONTENTS 6.6.9 Welding guide ....... 81 6.7 Setting Internal Functions....83 6.7.1 Setting procedure .

  • Page 6: Chapter 1 Safety Information

    Chapter 1 Safety Information This chapter explains the precautions on the welding power source and welding operation. Warning Symbols The following safety warning symbols and signs are used throughout the manual to ensure proper operation of the product and to prevent from various hazards that cause serious injury and damages. Indication and explanation for the symbols are as follows: Make sure to fully understand the content before beginning operation.

  • Page 7: Safety Precaution

    AFETY NFORMATION HAPTER AFETY RECAUTION Safety Precaution This section explains the safety precautions regarding operation of the welding power source. 1.2.1 Operating precautions To prevent serious injury or accidents, ensure to follow the instructions below: • Be sure to read and understand the information in the manual before operating the product.

  • Page 8: Precautions For Power Supply And Electric Shock

    AFETY NFORMATION HAPTER AFETY RECAUTION 1.2.2 Precautions for power supply and electric shock To prevent electric shock or burn injury, ensure to follow the instructions below: • Do not touch the input and output terminals and the internal live electrical parts of the welding power source.

  • Page 9: Precautions For Disassembling And Modifying The Welding Power Source

    AFETY NFORMATION HAPTER AFETY RECAUTION 1.2.4 Precautions for disassembling and modifying the welding power source To prevent electrical shock, fire, injury from malfunction and error in the welding power source, ensure to follow the instructions below: • Do not disassemble/modify the welding power source. Disassembling/modifying by customer is out of the warranty scope.

  • Page 10: Precaution For Protective Equipment

    AFETY NFORMATION HAPTER AFETY RECAUTION 1.2.6 Precaution for protective equipment For protection from arc ray generated from welding, spattering dross and hearing disorder from noise, observe the following: • When welding or watching a welder work, wear face shield with a proper shade of filter (See ANSI Z 49.1 listed in PRINCIPAL SAFETY STANDARDS) to protect the face and eyes.

  • Page 11: Precautions For Flammable Materials

    AFETY NFORMATION HAPTER AFETY RECAUTION 1.2.7 Precautions for flammable materials To prevent fire, explosion and rupture, ensure to follow the instructions below: • Remove all flammables within 33 ft (10 m) of the welding arc so that sparks and spatter do not strike flammable materials. If this is not possible, tightly cover them with noncombustible covers.

  • Page 12: Precautions For Gas Cylinder And Gas Regulator

    AFETY NFORMATION HAPTER AFETY RECAUTION 1.2.8 Precautions for gas cylinder and gas regulator To prevent falling of gas cylinder, gas regulator explosion and accident caused by gas, ensure to follow the instructions below: • Use only correct shield gas cylinders according to the related laws, regulations and customer's standard.

  • Page 13: Principal Safety Standards

    AFETY NFORMATION HAPTER RINCIPAL AFETY TANDARDS Principal Safety Standards Arc welding equipment – Installation and use, Technical Specification IEC 62081, from International Electro technical Commission Arc welding equipment Part 1: Welding power sources IEC 60974-1, from International Electro technical Commission Safety in Welding and Cutting, ANSI Standard Z49.1, from American Welding Society.

  • Page 14: Chapter 2 Product Specification And Configuration

    Specification This section explains the specification and external dimension of the welding power source. 2.1.1 Specifications This chapter explains the specification of the welding power source. Specification/Model Welbee M350L II Welding method DC TIG DC STICK DC TIG DC STICK...

  • Page 15: Applicable Welding Method

    RODUCT PECIFICATION AND ONFIGURATION HAPTER PECIFICATION 2.1.2 Applicable welding method This section explains the applicable welding method (shield gas/wire type/welding type) and wire diameter. Standard specification WELDING Penetration GAS (*) WIRE MATERIALS WIRE DIA. [in. (mm)] TRAVEL SPEED METHOD adjustment .030 / .035 / .040 / .045 MILD STEEL STANDARD (*2)/HIGH...

  • Page 16: External Dimensions

    RODUCT PECIFICATION AND ONFIGURATION HAPTER PECIFICATION 2.1.3 External dimensions This section explains the external dimensions of the welding power source. 15.6" (395 mm) 28.0" (710 mm) 12.6" (320 mm) 18.1" (460 mm) 3.9" (100 mm) 2.1.4 Rated duty cycle This section explains the rated duty cycle of the welding power source. •...
  • Page 17 RODUCT PECIFICATION AND ONFIGURATION HAPTER PECIFICATION • Use the welding power source within its usable range by observing the duty cycle for the welding current. – Three phase DC, DC TIG DC STICK Usable range Usable range Welding current (A) Welding current (A) –...

  • Page 18: Product Configuration

    RODUCT PECIFICATION AND ONFIGURATION HAPTER RODUCT ONFIGURATION Product Configuration This section explains the standard or optional composition of the welding power source and parts to be prepared by customers. 2.2.1 Standard composition This section explains the standard composition of the welding power source. For equipment used in combination with the welding power source connected to robot, refer to the instruction manual of the robot controller.
  • Page 19 RODUCT PECIFICATION AND ONFIGURATION HAPTER RODUCT ONFIGURATION • When air-cooled welding torch (with voltage detection) is used Welding power source Base metal Ground a base metal if required by local law. Required Optional Name Remarks component accessories To be prepared by the customer. Gas regulator 2.2.3 Accessory (not supplied))
  • Page 20 RODUCT PECIFICATION AND ONFIGURATION HAPTER RODUCT ONFIGURATION • At TIG welding: Welding power source Base metal Required Optional Name Remarks component accessories Gas regulator To be prepared by the customer. Welding torch 2.2.3 Accessory (not supplied)) Gas hose [10 ft (3 m)] (*1) Included in feeder (*2) Power cable for base metal side (*1) Included in feeder...

  • Page 21: Accessory (Supplied)

    RODUCT PECIFICATION AND ONFIGURATION HAPTER RODUCT ONFIGURATION • At DC STICK welding: Welding power source Base metal Required Optional Name Remarks component accessories To be prepared by the customer. Welding electrode holder 2.2.3 Accessory (not supplied)) Power cable for welding electrode holder [AWG2 (38mm ) or more] Power cable for base metal side...

  • Page 22: Accessory (Not Supplied)

    RODUCT PECIFICATION AND ONFIGURATION HAPTER RODUCT ONFIGURATION 2.2.3 Accessory (not supplied) This section explains the accessories to be prepared by the customer before operating the welding power source. Prepare the following: • Gas regulator For the gas regulator, make sure to use a device for compressed gas cylinder that conforms to the specific application of the shield gas.
  • Page 23 RODUCT PECIFICATION AND ONFIGURATION HAPTER RODUCT ONFIGURATION 2.2.4.2 Details on extension cables and hoses Following extension cables and hoses are optionally available. For extending the working radius, use extension cable and hose according to the working radius. • When using extension cables, roll them out. Winded extension cable may cause an unstable arc.

  • Page 24: Part Names

    RODUCT PECIFICATION AND ONFIGURATION HAPTER AMES Part Names This section explains the part names of the welding power source. 2.3.1 Front panel The section explains the front section of the welding power source. Operation panel 6.2 Function on Operation Panel) Main power lamp Power switch Socket for analog remote control...

  • Page 25: Chapter 3 Transportation And Installation

    Chapter 3 Transportation and Installation This chapter explains the necessary equipment, installation environment and transportation method for installing the welding power source. Required Equipment This section explains the necessary power supply equipment for installing the welding power source and equipment for preventing lack of oxygen and dust hazard during welding.

  • Page 26: Ventilation Equipment/Partial Exhaust Facility

    RANSPORTATION AND NSTALLATION HAPTER EQUIRED QUIPMENT 3.1.1.1 Use of the engine generator and auxiliary power • To prevent the welding power source from being damaged or arc loss, follow the instructions below. When using an engine generator for the welding power source, pay attention to the following. •...

  • Page 27: Installation Environment

    RANSPORTATION AND NSTALLATION HAPTER NSTALLATION NVIRONMENT Installation Environment This section explains the installation environment of the welding power source. • For prevention from fire or damage to the welding power source, be sure to install in a location that satisfies the following environment: 3.2.1 Installation environment •...

  • Page 28: Transportation Procedure

    RANSPORTATION AND NSTALLATION HAPTER RANSPORTATION ROCEDURE Transportation Procedure This section explains the procedure for transportation of the welding power source. • Do not touch the input and output terminals and the internal live electrical parts of the welding power source. It may cause electric shock.

  • Page 29: Transportation With Lifting Lug

    RANSPORTATION AND NSTALLATION HAPTER RANSPORTATION ROCEDURE 3.3.1 Transportation with lifting lug This section explains the procedure for transportation with lifting lug such as a crane. For preventing falling of the welding power source and resulting accidents, be sure to observe the following: •...

  • Page 30: Manual Transportation With Carts

    RANSPORTATION AND NSTALLATION HAPTER RANSPORTATION ROCEDURE 3.3.2 Manual transportation with carts This section explains the manual procedure for transportation using equipment such as a cart. • When lifting the welding power source, make sure to hold the bottom of the welding power source by more than one person.

  • Page 31: Chapter 4 Connection

    Chapter 4 Connection This chapter explains the procedure for connecting the welding power source. Precautions for Connection Procedure and Grounding This section explains the precautions for connection and grounding procedure. For protection from serious injury or fire, observe the following: For protection from electric shock, observe the following points: •...

  • Page 32: Connection Of Cable At Output Side

    ONNECTION HAPTER ONNECTING THE ELDING OWER OURCE 4.2.1 Connection of cable at output side This section explains the procedure for connecting of cable at output side. • Use a grounding cable for the case, of welding power source and perform grounding. Otherwise, voltage may increase in the case or base metal which could cause electric shock.

  • Page 33: Connection Of Wire Feeder

    ONNECTION HAPTER ONNECTING THE ELDING OWER OURCE 4.2.2 Connection of wire feeder This chapter explains the connecting procedure of the wire feeder. Refer also to the instruction manual of wire feeder. • When not using an analog remote control (optional accessory), do not remove the cap for the analog remote control.

  • Page 34: Connection Of Welding Torch

    ONNECTION HAPTER ONNECTING THE ELDING OWER OURCE 4.2.3 Connection of welding torch This section explains the procedure for connecting the welding torch. When air-cooled Wire feeder welding torch is used When water-cooled welding torch is used Torch cable Condensing water port (red collar) Feeding water Condensing water...
  • Page 35 ONNECTION HAPTER ONNECTING THE ELDING OWER OURCE Voltage detection terminal Wire feeder Voltage detection cable for base metal side Base metal Connect the torch cable and the voltage detection adapter to the wire feeder. Cut the voltage detection cable for base metal side to a suitable length. Connect the voltage detection cable for base metal side to the base metal.
  • Page 36 ONNECTION HAPTER ONNECTING THE ELDING OWER OURCE 4.2.4.1 Caution on connection of voltage detection cable Voltage detection cable needs to be wired so that arc voltage can be fed back with accuracy. Be sure to check the following for reducing the influence of inductance noise. •...

  • Page 37: Connection At Tig Welding

    ONNECTION HAPTER ONNECTING THE ELDING OWER OURCE 4.2.5 Connection at TIG welding • In using the welding power source for TIG welding, prepare a welding torch by the customer. • Contrary to the normal connection, the TIG welding requires connection of the welding torch to the output terminal (base metal side).

  • Page 38: Connection At Dc Stick Welding

    ONNECTION HAPTER ONNECTING THE ELDING OWER OURCE TIG valve kit 4.2.6 Connection at DC STICK welding • In using the welding power source for DC STICK welding, prepare a welding electrode holder by the customer. • After five seconds have passed, the safety voltage (approx. 15 V) is automatically provided.

  • Page 39: Connection Of Shield Gas

    ONNECTION HAPTER ONNECTING THE ELDING OWER OURCE Pass the cable (welding electrode holder side) through the grip of the specified connector. The length of the conductor shall be about the same as the length of the sleeve. ● Attach the sleeve to the conductor of the cable. Insert the sleeve into the connector terminal, and fix the sleeve using a screw.

  • Page 40: Power Supply

    ONNECTION HAPTER ROUNDING AND ONNECTION OF NPUT OWER UPPLY Grounding and Connection of Input Power Supply This section explains the procedure for performing grounding work, connecting the welding power source and input power supply (power supply at facility side). • When the welding power source is used in a humid environment such as construction site, or location with highly conducting material such as steel plate or on steel structure, install a leakage breaker.

  • Page 41: Confirmation Of Connection

    Connection of robot This section explains the configuration example of connecting the welding power source with robots made by other manufacturer. When connecting with robots made by OTC, refer to the instruction manual of the robot controller. 4.5.1.1 Configuration example for connection...
  • Page 42 ONNECTION HAPTER ONNECTION OF XTERNAL QUIPMENT Product name/Model Remarks Welding power source Connection robot controller cable (optional) is also available. Interface: IFR-101WB Refer to instruction manual of Interface) Wiring for wire feeder needs to be changed. Wire feeder 4.6.1 Wiring to wire feeder) Welding torch: K2331 type curved torch Uni-cord power cable: K5369 [3.6 ft (1.1 m)], K5370 [4 ft (1.2 m)] Control cable for wire feeder: BKCPJ-1010 [33 ft (10 m)]...

  • Page 43: Connection Of Automatic Machine

    ONNECTION HAPTER ONNECTION OF XTERNAL QUIPMENT 4.5.2 Connection of automatic machine This section explains the procedure for connection of automatic machine with the welding power source. 4.5.2.1 Wiring for connecting automatic machine The welding power source is equipped with terminal block for external connection inside the cover for external connection at the rear.
  • Page 44 ONNECTION HAPTER ONNECTION OF XTERNAL QUIPMENT • WCR output signal WCR signal is the output of relay contact. Ensure to keep the maximum rated power of the contact. Welding power Maximum rated power of relay contact Current limiting source side WCR: 125 VAC / 0.5 A, 30 VDC / 1 A at resistance load As a rough resistor indication, use at 80% of the ratings.
  • Page 45 ONNECTION HAPTER ONNECTION OF XTERNAL QUIPMENT 4.5.2.2 Connection of terminal for external connection This section explains the procedure for connection to the terminal for external connection. To prevent electric shock, ensure to follow the instructions below: • Wiring should be performed by qualified persons or persons familiar with the welding machine.

  • Page 46: Wiring Of Voltage Detection Cable At Base Metal Side

    ONNECTION HAPTER IRING OF OLTAGE ETECTION ABLE AT ETAL Check the wiring and place the cover for external connection back to the welding power source. Wiring of Voltage Detection Cable at Base Metal Side When the extension cable is 99 ft (30 m) or more in length in total, use of the voltage detection cable at the base metal side is recommended.

  • Page 47: Wiring To Welding Power Source

    ONNECTION HAPTER IRING OF OLTAGE ETECTION ABLE AT ETAL 4.6.2 Wiring to welding power source This section explains how to connect the voltage detection cable at the base metal side to the voltage direct detection terminal at the base metal side of the welding power source. Welding power source Terminal for voltage direct detection...

  • Page 48: Wiring Example Of Voltage Detection Cable

    ONNECTION HAPTER IRING OF OLTAGE ETECTION ABLE AT ETAL 4.6.3 Wiring example of voltage detection cable This section shows the wiring examples of the voltage detection cables at the base metal side to the base metal. 4.6.3.1 Wiring examples for plural welding stages Connect the base metal side voltage detection cable to the stage farthest from the base metal side power cable which connects to the base metal terminal of the welding power supply, away from the base metal side cable.

  • Page 49: Chapter 5 Welding Operation

    Chapter 5 Welding Operation This chapter explains the procedures from preparation to completion of the welding operation. Precaution at Welding Operation This section explains the safety precautions for welding operation. 5.1.1 Precautions for air discharge and use of respiratory protective equipment To prevent suffocation or gas poisoning in the welding operation, ensure to follow the instructions below: •...

  • Page 50: Precaution For Protective Equipment

    This section explains the check parameters before welding. To avoid welding problems beforehand, check the parameters below when the welding environments are prepared. (These are the check parameters recommended by OTC. They also contain check parameters after power ON or after shield gas supply.) For handling the cooling water circulation device, refer to the instruction manual of the cooling water circulation device.
  • Page 51 ELDING PERATION HAPTER HECK BEFORE ELDING Check parameter Countermeasures Check There should be no loose connections of the Use a proper tool to ensure connection. cables. There should be no dirt such as oil or spatter Wipe off dirt so that the metal face of connection terminal or connection part is fully adhering on the connection terminals or exposed.

  • Page 52: Power On And Gas Supply

    ELDING PERATION HAPTER OWER UPPLY Power ON and Gas Supply This section explains how to supply power and shield gas. • Handle the gas cylinder according to the related laws or regulations as well as the internal standard of the customer. Note that the gas cylinder contains a high-pressure gas.

  • Page 53: Wire Inching

    ELDING PERATION HAPTER NCHING Wire Inching This section explains the inching operation (feeding operation) of the wire. • Do not look into the tip of the welding torch during the inching operation. Do not bring the tip of the welding torch to face, eyes, or body. The wire may abruptly burst out, resulting in an injury.

  • Page 54: Check And Setting Of Welding Condition

    ELDING PERATION HAPTER HECK AND ETTING OF ELDING ONDITION Check and Setting of Welding Condition This section explains how to check the welding condition as well as how to prevent erroneous operation on the operation panel (Erroneous operation prevention function). 5.5.1 Reading welding condition Before starting the welding operation, it is necessary to set the welding conditions (such as welding current/voltage, type...

  • Page 55: Performing Welding Operation

    ELDING PERATION HAPTER ERFORMING ELDING PERATION 5.5.2.2 Deactivating erroneous operation prevention function Turn the screen operation knob again to place the cursor on “KEY LOCK”, and press the knob. The KEY LOCK will be released, and the color of “OFF” of the KEY LOCK in the MENU screen becomes inverted. The key mark in the HOME screen will disappear.

  • Page 56: Operation During Welding

    ELDING PERATION HAPTER ERFORMING ELDING PERATION • Other welding methods • If the TIG valve controller will not be used in TIG welding, be sure to shut off the gas after completion of welding. There is a risk of suffocating if closing the gas is forgotten in case opening/closing of the gas is done manually.
  • Page 57 ELDING PERATION HAPTER ERFORMING ELDING PERATION DISPLAY CHANGE key Welding current adjustment knob Welding voltage adjustment knob Analog remote control (Optional accessories) Welding power source UNIT CHANGE key Parameter adjustment knob Press the DISPLAY CHANGE key. The displays of the left/right digital meter switches to the set values. The LED for the welding sequence changes to the light-up mode.

  • Page 58: Operation At Welding End

    ELDING PERATION HAPTER ERFORMING ELDING PERATION 5.6.3 Operation at welding end This section explains the supply stop procedure of power/shield gas after the welding end. GAS CHECK key Main valve Flow rate Welding power adjustment knob source SHUT Shut off Power switch Welding power source...

  • Page 59: Chapter 6 Welding Condition

    Chapter 6 Welding Condition This chapter explains the functions on the operation panel as well as how to set the welding conditions. List of Welding Conditions This section explains the parameters/functions settable in the welding power source. 6.1.1 Parameter (Welding parameter) Set Range Parameter Initial Value...

  • Page 60: Internal Function

    0: Semi-automatic machine 1: Automatic machine 1 Auto/Semi-auto mode 0/1/2/3/4 2: Automatic machine 2 3: Almega (OTC’s robots) specification 4: Almega (OTC’s robots) specification (for high speed communication) Maximum external command Sets the maximum value of voltage supplied when 10.0/14.0/15.0 15.0 (V) voltage current/voltage command is externally input.
  • Page 61 ELDING ONDITION HAPTER IST OF ELDING ONDITIONS Function Name Setting range Initial value Explanation Memory Sets the output status when an error of the alarm level is detected: Alarm setting switching OFF/ON OFF: Ineffective ON: Stops the output Low input voltage 140 to 460 160 (V) Adjusts the low primary input voltage detection level.
  • Page 62 ELDING ONDITION HAPTER IST OF ELDING ONDITIONS Function Name Setting range Initial value Explanation Memory Special crater sequence Sets crater time in the special crater sequence. 0.0 to 10.0 0.0 (s) crater time (available when F45 is enabled) With the setting of "Crater" and in the welding condition (during start input holding), sets whether to adjust Adjusting current with torch current by the torch switch operation:...
  • Page 63 ELDING ONDITION HAPTER IST OF ELDING ONDITIONS Function Name Setting range Initial value Explanation Memory Sets the current value of the crater condition in the Setting of current value (crater 10 to 300 100 (%) percentage based on the current value of the welding condition) condition.

  • Page 64: Function On Operation Panel

    ELDING ONDITION HAPTER UNCTION ON PERATION ANEL Function on Operation Panel This section explains the function of displays and keys arranged on the operation panel. 6.2.1 Operation panel DISPLAY CHANGE key UNIT CHANGE key Parameter adjusting knob Screen operation knob Name Function Displays various information.

  • Page 65: Setting Screen

    When the LED is ON: water-cooled welding torch mode • When the LED is OFF: air-cooled welding torch mode Terminals for service use Terminals for the OTC service use. For variety of registered data, writes to or reads from the USB memory. ( Chapter 7 Administrator...
  • Page 66 ELDING ONDITION HAPTER UNCTION ON PERATION ANEL <HOME screen> <MENU screen> Cursor Displays current setting welding conditions. The screen switches every time the key is pressed. Move the cursor by turning screen Move the cursor by turning screen operation knob and select item to operation knob and select item to be changed setting.
  • Page 67 ELDING ONDITION HAPTER UNCTION ON PERATION ANEL Item Functions Select the gas to use. • Some gas cannot be used depending on the combination of the wire material, wire diameter, welding method, and travel speed. The gas that cannot be used will not be displayed. ( 6.6.1 Welding mode setting) •...

  • Page 68: Welding Conditions

    ELDING ONDITION HAPTER ELDING ONDITIONS Welding Conditions This section explains basic welding conditions with useful functions. 6.3.1 Basic welding conditions This section explains the basic welding conditions. To carry out the welding operation, the followings should be considered: • Plate thickness and materials of welding material •...

  • Page 69: Memory Function Of Welding Conditions

    BE SURE TO MAKE A COPY FOR IMPORTANT DATA. • Please note that OTC will not be liable for any alteration or loss of electronic information. • The memory function of welding condition is not available if the welding method is "DC TIG"...

  • Page 70: Read Out Of Welding Conditions

    ELDING ONDITION HAPTER EMORY UNCTION OF ELDING ONDITIONS Turn the screen operation knob (or parameter adjustment knob), and select a JOB No. ⇒ When there is no registration data on the selected JOB No, “no data” is displayed on the LCD panel, and “- - - -” is displayed on the left digital meter.

  • Page 71: Deletion Of Memory Registration

    ELDING ONDITION HAPTER EMORY UNCTION OF ELDING ONDITIONS Turn the screen operation knob (or parameter adjustment knob), and select the JOB No. to read out. ⇒ When there is no registration data on the selected JOB No., “no data” is displayed on the LCD panel and "- - - -" is displayed on the left digital meter.
  • Page 72 ELDING ONDITION HAPTER EMORY UNCTION OF ELDING ONDITIONS Select "Delete JOB". Turn the screen operation knob and point the cursor to ● Delete JOB. Press the screen operation knob. ● ⇒ "dEL" is displayed when the system transits to the DELETE mode.

  • Page 73: Setting Welding Conditions

    ELDING ONDITION HAPTER ETTING ELDING ONDITIONS Setting Welding Conditions This section explains how to set the welding conditions (welding mode or welding parameters). 6.6.1 Welding mode setting Depending on the type of shield gas, wire material, etc., there are modes that can be combined and modes that cannot be combined.

  • Page 74: Setting Welding Parameter

    ELDING ONDITION HAPTER ETTING ELDING ONDITIONS Select "WELDING METHOD" on the HOME screen. Turn the screen operation knob and point the cursor to the ● WELDING METHOD (e.g. DC). Press the screen operation knob. ● ⇒ The setting screen of welding conditions of WELDING METHOD will be displayed.
  • Page 75 ELDING ONDITION HAPTER ETTING ELDING ONDITIONS MAIN POST FLOW CONDITION FLOW INITIAL CRATER-FILL CONDITION CONDITION Each sequence process has the following description: Process Description PRE FLOW It is the sequence to discharge gas before the welding starts. INITIAL CONDITION It is the sequence to process the welding start. MAIN CONDITION It is the welding sequence.
  • Page 76 ELDING ONDITION HAPTER ETTING ELDING ONDITIONS 6.6.3.2 Welding parameter setting This section explains how to set the welding parameters (gas discharge time, welding current/voltage) according to the welding sequence. INITIAL CONDITION MAIN CONDITION POST FLOW PRE FLOW DISPLAY CHANGE key CRATER-FILL CONDITION UNIT CHANGE key Parameter adjustment knob...

  • Page 77: Crater Setting

    ELDING ONDITION HAPTER ETTING ELDING ONDITIONS Set the welding voltage. When the LED above the 7-segment display (for voltage adjustment) is off, press the parameter adjustment knob ● to light up the LED. Turn the parameter adjustment knob to set the welding voltage. ●...
  • Page 78 ELDING ONDITION HAPTER ETTING ELDING ONDITIONS 6.6.4.1 Crater "OFF" Select "CRATER OFF" by the CRATER-FILL menu. • In synchronous to the ON/OFF operation of the torch switch, the welding starts/stops. Torch switch Pre-flow Post-flow Gas flow No-load voltage Anti-stick time Output voltage Slow-down speed Wire feeding speed...
  • Page 79 ELDING ONDITION HAPTER ETTING ELDING ONDITIONS 6.6.4.3 Crater "ON" (with initial condition) Select "CRATER-FILL ON" by the CRATER-FILL menu and select "INITIAL CONDITION ON" by the INITIAL CONDITION menu. • Carry out twice the ON/OFF operation of the torch switch and carry out the welding operation. The operation from the first ON to OFF enables the welding by the initial current, and the second ON operation enables the welding by the crater current.
  • Page 80 ELDING ONDITION HAPTER ETTING ELDING ONDITIONS 6.6.4.4 Crater (Repeated) Select “CRATER-FILL ON (Repeat)” by the CRATER FILL menu. • The torch switch operation until the crater treatment is the same with the welding of “CRATER-FILL ON”. ( 6.6.4.2 Crater "ON" (no initial condition)) •...

  • Page 81: Arc Spot Time

    ELDING ONDITION HAPTER ETTING ELDING ONDITIONS 6.6.5 Arc spot time This section explains the details of arc spot and torch switch operation. Selecting "ARC SPOT" by the CRATER-FILL menu allows the machine in the main mode. • In this mode, the torch switch remains to be ON for welding operation. When the arc spot time elapses, the welding automatically stops.

  • Page 82: Welding Voltage Adjustment

    ELDING ONDITION HAPTER ETTING ELDING ONDITIONS 6.6.6 Welding voltage adjustment This section explains how to adjust the welding voltage. The adjustment of welding voltage can be carried out either by the SYNERGIC mode or INDIVIDUAL mode. TIPS • Some conditions such as synergic condition does not meet the appropriate level if a mixing gas ratio of shield gas is not the specified value.

  • Page 83: Penetration Control Adjustment

    ELDING ONDITION HAPTER ETTING ELDING ONDITIONS 6.6.8 Penetration control adjustment This section explains how to adjust the penetration control. Using the constant penetration function enables to automatically adjust the wire feed speed so that the constant welding current can be assured even when the wire feeding length changes.
  • Page 84 ELDING ONDITION HAPTER ETTING ELDING ONDITIONS Select the weld joint that needs to be changed. Turn the screen operation knob to place the cursor on the ● parameter that needs to be set, and press the knob. ⇒ Change of the weld joint is confirmed, and the screen returns to the WELDING GUIDE screen.

  • Page 85: Setting Internal Functions

    ELDING ONDITION HAPTER ETTING NTERNAL UNCTIONS Setting Internal Functions This section explains how to set the internal functions with the details. The internal functions can be customized according to the using environment of the customer for further convenient use of the welding power source. 6.7.1 Setting procedure This section explains how to set the internal functions.

  • Page 86: Detailed Information On Internal Functions

    ELDING ONDITION HAPTER ETTING NTERNAL UNCTIONS Turn the parameter adjustment knob, and change the setting value. ⇒ The set value is activated as it is changed. Press the CANCEL key. ⇒ The setting of internal function completes, and the LCD display returns to the MENU screen. 6.7.2 Detailed information on internal functions This section explains the detailed information of internal functions in the order of function No.
  • Page 87 For the settings "0" to "2", refer to the table below. The settings "3" and "4" are the modes specifically for the use with OTC robots. For details, refer to the instruction manual of the robot controller.
  • Page 88 ELDING ONDITION HAPTER ETTING NTERNAL UNCTIONS 6.7.2.4 F5: Maximum external command voltage When the internal function F4 (Auto/Semi-auto mode) is used with the setting of "1", set the maximum value of command voltage input from outside. Select either from 10 V, 14 V, or 15 V. The below charts show the relationship between current/voltage command voltage and welding current/voltage.
  • Page 89 ELDING ONDITION HAPTER ETTING NTERNAL UNCTIONS 6.7.2.7 F8: Welding result display time Set the time period for the output current and voltage to be displayed on the left/right digital meters in a flashing mode after the completion of welding. Set the display time in the flashing mode. The value of display time is the average value for 1 second immediately before the completion of welding.
  • Page 90 ELDING ONDITION HAPTER ETTING NTERNAL UNCTIONS • In the following cases, this function cannot be used: – Welding conditions are not registered to the memory; – Analog remote control (optional) is not connected to the welding power source; – Internal function F44 (Reading welding condition with remote control) is set to "ON" (enabled); –...
  • Page 91 ELDING ONDITION HAPTER ETTING NTERNAL UNCTIONS 6.7.2.14 F17/F18: Anti-stick time/voltage adjustment Set the anti-stick time/voltage, which is the anti-stick processing time and voltage. Optimum setting of the anti-stick time/ voltage enables to obtain the following effects: • At the welding completion, wire adhesion to the base material can be prevented. •...
  • Page 92 ELDING ONDITION HAPTER ETTING NTERNAL UNCTIONS 6.7.2.18 F23: Sleep mode switching time When the welding power source is not operated for a fixed period of time, it can be turned into the sleep mode. • [0]: disables the function. • [1] to [10]: enables the function.
  • Page 93 ELDING ONDITION HAPTER ETTING NTERNAL UNCTIONS • [OFF]: disables the function. – The wire feed speed is automatically set based on the welding current. – Even when the welding mode is changed by the GAS menu, the wire feed speed is automatically set based on the set welding current.
  • Page 94 ELDING ONDITION HAPTER ETTING NTERNAL UNCTIONS *4: Combination of the external input terminals enables to read out the welding conditions of the JOB No. 1 to 16 (Registration No. 1 to 16) registered on the memory. The corresponding JOB No. are as shown in the below table. JOB No.
  • Page 95 ELDING ONDITION HAPTER ETTING NTERNAL UNCTIONS Example: In the setting examples of F29: "5" ; F30: "0" ; F31: "5" ; and F32: "0" , the following diagram is available: Do not change condition within 40 msec Switch IN-EXT1 and 3 More than 100 msec before before and 100 msec after torch within 40 msec.
  • Page 96 ELDING ONDITION HAPTER ETTING NTERNAL UNCTIONS 6.7.2.23 F33: Inhibition ratio display for [Squeeze] detection Any shift in detecting [Squeeze] leads to spatter generation. This function enables to check the inhabitation ratio (%) of [Squeeze] detection from the welding start to the welding completion. •...
  • Page 97 ELDING ONDITION HAPTER ETTING NTERNAL UNCTIONS 6.7.2.25 F35: Saving [Squeeze] detection sensitivity Sets whether to return the sensitivity corrected by F34 (Automatic correction of [Squeeze] detection sensitivity) to the initial value when welding completes or maintain it after welding completes. •...
  • Page 98 ELDING ONDITION HAPTER ETTING NTERNAL UNCTIONS TIPS • Use the voltage detection cable (optionally available) when the total length of the extension cable is 99 ft (30 m) or longer. • When using wire feeder CM-7403, water-cooled welding torch cannot be used. Accordingly, arc voltage direct detection switch cannot be activated even with this function set to "1".
  • Page 99 ELDING ONDITION HAPTER ETTING NTERNAL UNCTIONS • [OFF]: disables the function. • In the following cases, this function cannot be used: – Welding conditions are not registered to the memory; – Analog remote control (optional) is not connected to the welding power source; –...
  • Page 100 ELDING ONDITION HAPTER ETTING NTERNAL UNCTIONS • In the following cases, this function cannot be used: – Internal function F11 (Fine adjustment of welding conditions memory) is set to "1" to "30" (enabled); – Internal function F44 (Reading welding condition with remote control) is set to "ON" (enabled); –...
  • Page 101 ELDING ONDITION HAPTER ETTING NTERNAL UNCTIONS • In the following cases, this function cannot be used: – An analog remote control (optional) is connected. – Internal function F11 (Fine adjustment of welding conditions memory) is set to "1" to "30" (enabled); –...
  • Page 102 ELDING ONDITION HAPTER ETTING NTERNAL UNCTIONS • In the following cases, this function cannot be used: – Internal function F11 (Fine adjustment of welding conditions memory) is set to "1" to "30" (enabled); – Internal function F44 (Reading welding condition with remote control) is set to "ON" (enabled); –...
  • Page 103 ELDING ONDITION HAPTER ETTING NTERNAL UNCTIONS 6.7.2.42 F68: Setting of current value (initial condition) The current value of the initial condition can be set in percentage based on the current value of the welding condition. • Setting range of current value (initial condition): 10 % to 300 % 6.7.2.43 F69: Setting of current value (crater condition) The current value of the crater condition can be set in percentage based on the current value of welding condition.
  • Page 104 ELDING ONDITION HAPTER ETTING NTERNAL UNCTIONS 6.7.2.49 F78: Prevention of unintended torch switch operation Sets whether or not to output the error code when welding is not performed for a certain time after the pre-flow to avoid an unexpected torch switch operation. •...
  • Page 105 ELDING ONDITION HAPTER ETTING NTERNAL UNCTIONS 6.7.2.54 F86/F87: Current display adjustment (GAIN/OFFSET) Set the adjustment value (gain/offset) when the current display value on the left digital meter is different from the actual current value. The current value displayed on the digital meter is obtained by software processing of the average value of outputs; therefore, it may not be consistent with the value indicated on a needle meter, etc.

  • Page 106: Operation Of Analog Remote Control

    ELDING ONDITION HAPTER PERATION OF NALOG EMOTE ONTROL PTIONAL Operation of Analog Remote Control (Optional) This section explains the functions of knobs and buttons arranged for the analog remote controller (optional) as well as their operation. Since the setting at the analog remote control is preferred when connected, it is not possible to set this condition on the operation panel of welding power source.
  • Page 107 ELDING ONDITION HAPTER PERATION OF NALOG EMOTE ONTROL PTIONAL The functions which can be assigned to the switching knob are as follows. Position of switching knob “F2” setting Functions No function CRATER-FILL ON Crater setting（ 6.6.4 Crater setting） CRATER-FILL OFF CRATER-FILL ON (Repeat) Gas check（...

  • Page 108: Chapter 7 Administrator Functions

    Chapter 7 Administrator Functions This chapter explains the functions used by administrators such as protection and initialization of welding conditions. Protection of Welding Conditions This section explains the protection function (password function) of welding conditions. When the function is enabled 5.5.2 Preventing erroneous operation on operation panel), a password will be requested to disable the erroneous operation prevention function.
  • Page 109 DMINISTRATOR UNCTIONS HAPTER ROTECTION OF ELDING ONDITIONS Turn the screen operation knob to select “Password Setting”, and press the knob. If a password has already been set, the Password Input ● screen will be displayed on the LCD panel. To change the password, delete the password with the operation from the step 3 of “7.1.2 Disabling erroneous operation prevention”...

  • Page 110: Disabling Erroneous Operation Prevention

    DMINISTRATOR UNCTIONS HAPTER ROTECTION OF ELDING ONDITIONS Turn the screen operation knob to select “OK” (color inversion display). • To cancel setting of the password, turn off the power switch. 2 3 5 Check that the password is correct and press the screen operation knob. The password has been set.
  • Page 111 DMINISTRATOR UNCTIONS HAPTER ROTECTION OF ELDING ONDITIONS Press the screen operation knob, enter the password of the selected digit, and press the knob. The number is confirmed, and the display will change from color inversion display to digit selection display. •...

  • Page 112: Welding Result Control Function

    DMINISTRATOR UNCTIONS HAPTER ELDING ESULT ONTROL UNCTION Welding Result Control Function This section explains about the welding result control function. The function enables the management of the items below. Welding control Monitor Initial Setting range Explanation parameter value Cumulative number of welding points (number of times) Number of welding 0 to 9999 Target value of welding points (number of times)

  • Page 113: Details Of Welding Control Items

    DMINISTRATOR UNCTIONS HAPTER ELDING ESULT ONTROL UNCTION Select the desired monitor No. Turning the screen operation knob (or parameter ● adjustment knob) will change the tens place digit of monitor No. (Example: "P10" -> "P20" -> "P30" -> "P40") Pressing the screen operation knob will change the ones ●...
  • Page 114 DMINISTRATOR UNCTIONS HAPTER ELDING ESULT ONTROL UNCTION *2: If "Disabled" is selected and the target is achieved, next welding cannot start until any key on the operation panel is pressed. 7.2.2.2 Wire consumption Wire consumption is controlled according to the setting range. •...
  • Page 115 DMINISTRATOR UNCTIONS HAPTER ELDING ESULT ONTROL UNCTION • P31 (Target total welding time) Select the target value of total welding time in the range from 0 to 9999 minutes. When the "P30" count value reaches the total welding time specified here, an alarm displays indicating that the target is achieved.
  • Page 116 DMINISTRATOR UNCTIONS HAPTER ELDING ESULT ONTROL UNCTION • Alarm signal output function to external output terminal If the average current/voltage (average per second) during welding falls outside the tolerance range set by "P41" to "P44", the external output terminals set by the internal functions will be shorted. ( 6.7.2.20 F25 to F28: External output terminal setting）...

  • Page 117: Data Backup (Utilization Of Data)

    • The backup data (electronic information) may be altered or lost when affected by static electricity, impact or repair work. Important information should also be stored as printed document. Please note that OTC will not be liable for any alteration or loss of electronic information. TIPS •...
  • Page 118 DMINISTRATOR UNCTIONS HAPTER ACKUP TILIZATION OF DATA The current welding conditions set with the operation panel will not be saved. (If necessary, record them in memory beforehand.) The welding condition data recorded in the memory will be output in the way that the JOB Nos. (registration Nos.) are displayed in a vertical line and the parameter values in a horizontally line.

  • Page 119: Simplified Data Log Function

    DMINISTRATOR UNCTIONS HAPTER ACKUP TILIZATION OF DATA The internal function setting data will be output below the JOB Nos. (registration Nos.) Function setting data TIPS • It is not possible to separately save the welding condition data recorded in memory and the internal function setting data.

  • Page 120: Failure Log Function

    DMINISTRATOR UNCTIONS HAPTER ACKUP TILIZATION OF DATA TIPS The length of time that can be used for recording depends on the sampling speed. If the • sampling speed is set to 100 ms, data of approximately five hours can be recorded. When the data exceeds the capacity, they will be deleted in order from the oldest.

  • Page 121: Backup Operation

    DMINISTRATOR UNCTIONS HAPTER ACKUP TILIZATION OF DATA 7.3.5 Backup operation This section explains how to back up the data such as welding conditions. The data can be backed up in a USB flash drive. TIPS • The USB flash drive to be used should be formatted as FAT32. If it is formatted as FAT16 or NTFS, reformat it to FAT32.

  • Page 122: Importing Backup Data

    DMINISTRATOR UNCTIONS HAPTER ACKUP TILIZATION OF DATA Press the screen operation knob. Data backup starts. During backup, the display of right digital meter changes. When backup is completed, "End" will be displayed on the right digital meter. 7.3.6 Importing backup data This section explains how to import the backup data.

  • Page 123: Initializing Welding Conditions And Internal Functions

    DMINISTRATOR UNCTIONS HAPTER NITIALIZING ELDING ONDITIONS AND NTERNAL UNCTIONS Press the screen operation knob. Flashing of the left/right digital meter displays will stop, and the display changes to the light-up mode. Press the screen operation knob. Importing the backup data starts. During backup, the display of right digital meter changes.

  • Page 124: Checking The Software Version And Serial Number

    DMINISTRATOR UNCTIONS HAPTER HECKING THE OFTWARE ERSION AND ERIAL UMBER Checking the Software Version and Serial Number This section explains how to check the software version installed in the welding power source. The software version is managed as below. P##### ### ### ### Product Extended version Main version...

  • Page 125: Calibration Mode

    DMINISTRATOR UNCTIONS HAPTER ALIBRATION Calibration Mode The calibration mode can be used to calibrate the current and the voltage values indicated on the digital meter of the welding power source as well as the actual output current and voltage values. TIPS •...

  • Page 126: Adjustment Of Output Voltage

    DMINISTRATOR UNCTIONS HAPTER ALIBRATION Correct the difference between the measured value and the set value by using the values of internal functions F39 and F40. When the value of F39 is "1", it is equivalent to the output current of 1 A. To increases the output current, increase ●...
  • Page 127 DMINISTRATOR UNCTIONS HAPTER ALIBRATION Turn ON the torch switch, and confirm the difference between the output voltage displayed on the voltmeter and the voltage displayed on the operation panel. Correct the difference by using the values of internal functions F41 and F42 so that the difference is within the range of ±0.1 V.

  • Page 128: System Setting

    DMINISTRATOR UNCTIONS HAPTER YSTEM ETTING System Setting Sets the “Font Size” of the HOME screen as well as the “LCD Background” and “Language” of all screens. Select “SYSTEM SETTING” on the MENU screen. Turn the screen operation knob to place the cursor on ●...

  • Page 129: Chapter 8 Maintenance And Inspection

    Chapter 8 Maintenance and Inspection This chapter explains the daily and periodical inspection of the welding power source. Precautions for Maintenance and Inspection This section explains the precautions for maintenance and inspection work. To prevent electric shock or burn injury, ensure to follow the instructions below: •...
  • Page 130 Important information should also be stored as printed document. Please note that OTC will not be liable for any alteration or loss of electronic information. • When cleaning the welding power source, do not expose the cooling fan directly to compressed air.

  • Page 131: Daily Inspection

    AINTENANCE AND NSPECTION HAPTER AILY NSPECTION Daily Inspection This section explains the daily inspection of the welding power source. Perform daily inspection for the following items in the table. The front and rear panels and the fan of the welding power source is made from polycarbonate resin. To prevent from electric shock or fire caused by the damage on polycarbonate resin, ensure to follow the instructions below.
  • Page 132 AINTENANCE AND NSPECTION HAPTER ERIODICAL NSPECTION Periodical inspection item Inspection work Grounding wire Each cables Refer to the description for the same item in "8.2 Daily Inspection". • (Primary power cable for facility side, cables for base metal side/torch side, torch cable, voltage detection cable, etc.) •...

  • Page 133: Periodical Replacement Parts

    AINTENANCE AND NSPECTION HAPTER ERIODICAL EPLACEMENT ARTS Periodical Replacement Parts This section explains the parts to be replaced periodically. • Printed circuit board PCB7 ( 10.1 Parts List) The printed circuit board PCB7 inside the welding power source has a high voltage electrolysis capacitor. The high voltage electrolysis capacitor supplies stable direct current to the inverter circuit, but its performance will degrade year by year.

  • Page 134: Insulation Resistance Measurement And Withstand Voltage Test

    AINTENANCE AND NSPECTION HAPTER NSULATION ESISTANCE EASUREMENT AND ITHSTAND OLTAGE Insulation Resistance Measurement and Withstand Voltage Test If insulation resistance measurement and withstand voltage test is necessary, please contact your dealer. • The customer MUST NOT perform the withstand voltage test. If withstand voltage test is necessary, ensure to contact your dealer.

  • Page 135: Chapter 9 Troubleshooting

    F19: Switching alarm setting) Check the error code displayed and take an appropriate action according to the table below. (If the welding power source is combined with robots manufactured by OTC, see the instruction manual of the robot controller.) • Before inspecting the welding power source, make sure to read "8.1 Precautions for Maintenance and Inspection".
  • Page 136 ROUBLESHOOTING HAPTER CTION IN ASE OF RROR Error code Error cause Action and how to cancel error • Check that the WIRE INCH key (or inching button) is not pressed. • If the internal functions F29 to F32 are set to "2" (inching), check also the Inching was active when the power switch connections of the terminal blocks for external connection.
  • Page 137 ROUBLESHOOTING HAPTER CTION IN ASE OF RROR Error code Error cause Action and how to cancel error • Check that the input voltage for primary side is in the following range. The input voltage for primary side was out of 208/230/460 V ±10% allowable range from 265 to 320 V (*1) •...
  • Page 138 ROUBLESHOOTING HAPTER CTION IN ASE OF RROR Error code Error cause Action and how to cancel error • Check that there is no problem in input voltage for primary side and in cable wiring. The phase W of input voltage for primary side is not connected (*1) •...

  • Page 139: Troubleshooting

    ROUBLESHOOTING HAPTER ROUBLESHOOTING Error code Error cause Action and how to cancel error • Turn off the power switches of all other CAN-connected welding power sources, then turn on the power switches and check the setting of internal function F43. 951 There is a duplicate ID on a single bus (*1) 6.7.2.30 F43: CAN ID)
  • Page 140 ROUBLESHOOTING HAPTER ROUBLESHOOTING Problem Possible cause Corrective action Check that the setting of internal functions F4 is correct. The automatic machine mode is selected. 6.7.2.3 F4: Auto/Semi-auto mode) Setting of current/voltage is not An analog remote control (optional) When an analog remote control (optional) is connected, possible.

  • Page 141: Chapter 10Reference Materials

    Chapter 10 Reference Materials This chapter contains the parts list of welding power source, and reference materials for setting the welding conditions. 10.1 Parts List This section shows the parts list of welding power source. • When placing an order, provide your dealer with the necessary information: the model name of welding power source, the name of the part to be replaced, and the part number (or specifications if part has no number).
  • Page 142 EFERENCE ATERIALS HAPTER ARTS Code Part No. Product Name Specifications Q’ty Remarks 100-4022 Fixed Metal Oxide Film Resistor MOS5C L30A 913J C1 to 4 100-1433 Ceramic capacitor DEBE33D222ZA2B C5,6 100-1434 Film capacitor FHC(180)2000V682J C7,10 100-0227 Film capacitor 0.47 F 50V 4511-512 Electrolysis capacitor LQA2C222MSMEZO...

  • Page 143: 10.2 Reference Drawing

    EFERENCE ATERIALS HAPTER EFERENCE RAWING *1: When placing an order of a printed circuit board P30099P00, provide us the following No. • Serial No. shown on the nameplate on the front or rear of the welding power source • Software version No. shown on the indication panel (under the input terminal block) at the rear of the welding power source The welding power source needs to be set various adjustment functions (Calibration function) for each product.

  • Page 144: 10.2.1 Schematic Diagram

    EFERENCE ATERIALS HAPTER EFERENCE RAWING 10.2.1 Schematic diagram...
  • Page 145 EFERENCE ATERIALS HAPTER EFERENCE RAWING...

  • Page 146: 10.2.2 Parts Layout Drawing

    EFERENCE ATERIALS HAPTER EFERENCE RAWING 10.2.2 Parts layout drawing...

  • Page 147: 10.3 Materials For Setting Welding Conditions

    EFERENCE ATERIALS HAPTER ATERIALS FOR ETTING ELDING ONDITIONS 10.3 Materials for Setting Welding Conditions This section provides reference information for setting the welding conditions. 10.3.1 Guide for changing welding conditions This section gives examples of the problems that can occur due to improper welding conditions. Problem Symptom •...
  • Page 148 EFERENCE ATERIALS HAPTER ATERIALS FOR ETTING ELDING ONDITIONS Plate thickness Leg length Wire diameter Current Voltage Travel speed gas flow rate t [in. (mm)] L [in. (mm)] [in. (mm) ] [IPM (cm/min)] [CFH (L/min)] 9/32 to 5/16 12 to 14 42 to 53 15/32 (12.0) .045 (1.2)
  • Page 149 EFERENCE ATERIALS HAPTER ATERIALS FOR ETTING ELDING ONDITIONS Example for welding conditions of single and double grooves Plate Root Root face Wire Current Voltage Travel speed Number of thickness Bevel shape opening h [in. diameter flow rate [IPM (cm/min)] layers t [in.
  • Page 150 EFERENCE ATERIALS HAPTER ATERIALS FOR ETTING ELDING ONDITIONS 10.3.2.2 Example of MAG short arc welding Material: Mild steel Gas: Ar + CO mixed gas [21 to 32 CFH (10 to 15 L/min)] Plate thickness Wire diameter Current Voltage Travel speed Joint shape t [in.

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