Weco Discovery 300 AC/DC Instruction Manual
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Weco Discovery 300 AC/DC Instruction Manual

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Cod.006.0001.1840
13/07/2016 v2.2
ENGLISH
WECO srl
Via S. Antonio, 22 - BELVEDERE
36056 TEZZE SUL BRENTA (VICENZA) ITALY
Tel.+39 0424 561943 – Fax +39 0424 561944
www.weco.it - E-mail info@weco.it
Discovery 300 AC/DC
Instruction manual
GB

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Summary of Contents for Weco Discovery 300 AC/DC

  • Page 1 Cod.006.0001.1840 13/07/2016 v2.2 ENGLISH WECO srl Via S. Antonio, 22 - BELVEDERE 36056 TEZZE SUL BRENTA (VICENZA) ITALY Tel.+39 0424 561943 – Fax +39 0424 561944 www.weco.it - E-mail info@weco.it Discovery 300 AC/DC Instruction manual...
  • Page 2 Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH 2/34...
  • Page 3 RESET (LOAD FACTORY SETTINGS) ....... 9 SPARE PARTS ..............28 PARTIAL RESET..............9 ELECTRICAL DIAGRAM ........... 30 TOTAL RESET ..............10 16.1 DISCOVERY 300 AC/DC ........... 30 SET-UP (INITIAL SET-UP OF THE WELDING POWER 16.2 TORCH CONNECTOR............32 16.3 REMOTE CONTROLLER CONNECTOR ......32 SOURCE) .................

  • Page 4: Front Panel

    This symbol accompanies important information concerning the execution of the relevant operations. Discovery 300 AC/DC is an advanced technology single-phase welding power source for AC and DC TIG welding operations. AC TIG functions are ideal for aluminum, magnesium and related alloys welding.

  • Page 5: Rear Panel

    Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH PREPARING FOR MMA WELDING REAR PANEL 1. Set the welding power source ON/OFF switch to “O” (unit de- energized). 2. Plug the power cable plug into a mains socket outlet. 1: Welding power source ON/OFF switch.
  • Page 6 Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH PREPARING FOR TIG WELDING Installation with cooling unit 1. Set the welding power source ON/OFF switch to “O” (unit de- energized). 2. Remove the screws from the power source cabinet. 9. Connect the gas hose from the welding gas cylinder to the rear gas socket.
  • Page 7 Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH welding arc. 20. Use the flow control valve to adjust the flow of gas as required while the gas is flowing out. 21. Set the required welding parameter values on the user interface.

  • Page 8: User Interface

    Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH USER INTERFACE CODE SYMBOL DESCRIPTION DC TIG mode: Illumination shows that the following function has been activated: Q-START AC TIG mode: Illumination shows that the following function has been activated: AC WAVE IN MIX AC-DC...

  • Page 9: Unit Power-Up 9

    Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH Data setting: The display shows the various welding menus relative to the selected processes. The display shows the selected parameter. AC TIG mode: Press the button to select the parameter to be set. Possible choices:...
  • Page 10 Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH TOTAL RESET The reset procedure involves complete restoration of the default values, parameters and memory settings set in the factory. All memory locations will be reset and hence all your personal welding settings will be lost! Set the welding power source ON/OFF switch to “O”...
  • Page 11 Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH Cooler activation − ON= The cooler is always running when the power source is switched on. This mode is preferable for heavy duty and automatic welding procedures. − OFF= The cooler is always disabled because an air-cooled torch is in use.

  • Page 12: Alarms Management

    Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH TORCH LOADING WARNING! Make sure the torch in use is correctly sized in relation to the welding current required and for the available and selected cooling type. This prevents the risk of burns to which the operator is potentially exposed, potential faults, and irreversible damage to the torch and the system.

  • Page 13: Welding Parameters

    Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH WELDING PARAMETERS For a better understanding of the parameter functions described in the table, refer to the following diagram. (I1) TIG WELDING CURRENT (I2) BASE CURRENT (I3) FINAL CURRENT (I4) STARTING CURRENT (t1) UP SLOPE TIME...

  • Page 14: Peak Time

    Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH Peak time Spot TIG time When the torch trigger is pressed the welding arc persists for the time Time for which the current pulse is at the maximum value. set in the parameter.

  • Page 15: Ac Frequency

    Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH The following picture shows the positive wave interval ∆I that, if subtracted and added to the negative wave, forms the new form of broken line wave. Consequences of a higher value: − Greater weld penetration.

  • Page 16: Parameters Activation

    10.1 PARAMETERS ACTIVATION The welding parameters are available in accordance with the selected welding mode and procedure. Certain parameters are available only after other parameters or functions of the unit have been enabled or set. The table shows the settings required to enable each parameter. 2: Available with "REMOTE CONTROL"= ON and remote : always available 1: Available with the user interface reference active...
  • Page 17 MENU MODE PROCEDURE PARAMETER 1° POST-GAS 2° 2° LONG ARC VOLTAGE 2° REMOTE CONTROL 2° FINAL CURRENT 2° SPOT TIG TIME MINIMUM PEDAL 2° CURRENT 2° HF ARC START 2° AC WAVE + FORM SPECIAL Q-START 3 + 4 3 + 4 3 + 4 3 + 4 3 + 4...

  • Page 18: Welding Settings

    Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH WELDING SETTINGS 11.1 ELECTRODE WELDING (MMA) This button serves to select the following welding mode: 11.1.1 MMA PARAMETERS SETTING (1ST LEVEL) Press this button to scroll the list of settings to edit. The selected parameter and its value are shown on the following displays: D2 Using the encoder, edit the value of the selected setting.

  • Page 19: Dc Tig Welding

    Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH Tab. 5 - Special functions in MMA mode PARAMETER DEFAULT DYNAMIC ARC 11.2 DC TIG WELDING Use this button to select one of the following welding modes: DC TIG PULSED DC TIG SYNERGIC PULSED DC TIG...

  • Page 20: Dc Tig Special Functions Menu

    Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH PARAMETER DEFAULT SPOT TIG TIME 0.01 s 0.1 s 10.0 s HF ARC START REMOTE CONTROL MINIMUM PEDAL CURRENT 50 % 90 % *1: The activation is suitable for the following welding modes: −...

  • Page 21: Ac Tig Welding

    Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH 11.3 AC TIG WELDING Use this button to select one of the following welding modes: AC TIG PULSED AC TIG Use this button to select one of the following torch trigger procedures: 2 STEP 2T SPOT 4 STEP 4 STEP BI-LEVEL 11.3.1 AC TIG PARAMETERS SETTING (1ST LEVEL)

  • Page 22: Ac Tig Special Functions Menu

    Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH Tab. 10 - 2nd level menu parameters in AC TIG mode PARAMETER MIN DEFAULT MAX SPOT TIG TIME 0.01 s 0.1 s 10.0 s REMOTE CONTROL ON *1 MINIMUM PEDAL CURRENT 1 %...

  • Page 23: Jobs Management

    Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH JOBS MANAGEMENT Personalised welding settings, or JOBs, can be saved in memory locations and subsequently uploaded. Up to 50 jobs can be saved (j01-j50). The settings of the SETUP menu are not saved.

  • Page 24: Torch Trigger Modes

    Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH The message appears only if there are saved JOBS, on the following displays: D2 NO STORED JOB Use the encoder to select the number of the job to be deleted. Exit without confirmation Press any button (except S2).

  • Page 25: T Hf Welding

    Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH 13.4 4T HF WELDING 1. Bring the torch up to the work until the electrode tip is approximately 2 or 3 mm away. 2. Press (1T) and release (2T) the torch trigger. The arc strikes without contact with the workpiece and the voltage discharges (HF) cease automatically.

  • Page 26: T Spot Hf Welding

    Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH 13.8 2T SPOT HF WELDING 1. Bring the torch up to the work until the electrode tip is approximately 2 or 3 mm away. 2. Press (1T) the torch trigger. The arc strikes without contact with the workpiece and the voltage discharges (HF) cease automatically.

  • Page 27: Technical Data

    Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH TECHNICAL DATA Model Discovery 300 AC/DC EN 60974-1 Construction standards EN 60974-3 EN 60974-10 Class A Supply voltage 3 x 40V ~± 15 % / 50-60 Hz Mains protection 20 A Delayed Dimensions ( L x D x H )

  • Page 28: Spare Parts

    Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH SPARE PARTS 28/34...
  • Page 29 Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH N° CODE DESCRIPTION KNOB 014.0002.0002 FRONT PANEL LABEL 013.0012.1501 FRONT BOARD PLATE 013.0000.8004 FRONT BOARD 050.0010.0015 FRONT PLASTIC PANEL 010.0006.0033 POWER TRANSFORMER 042.0003.0048 OUTPUT INDUCTANCE 044.0004.0025 HF TRANSFORMER 010.0002.0004 TRANSFORMER SUPPORT 011.0009.0121 PRIMARY CAPACITOR BOARD 050.0001.0119...

  • Page 30: Electrical Diagram

    Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH ELECTRICAL DIAGRAM 16.1 DISCOVERY 300 AC/DC 30/34...
  • Page 31 Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH 31/34...

  • Page 32: Torch Connector

    Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH 16.2 TORCH CONNECTOR 16.3 REMOTE CONTROLLER CONNECTOR cod. 021.0004.3360 cod. 021.0004.0602 Torch Torch with potentiometer Up & down torch 2 kOhm - 10 kOhm potentiometer Remote controller 2 kOhm - 10 kOhm potentiometer...
  • Page 33 Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH 33/34...
  • Page 34 Cod.006.0001.1840 13/07/2016 v2.2 Discovery 300 AC/DC ENGLISH 34/34...

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