Weco Discovery 221AC/DC Evo Instruction Manual
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Weco Discovery 221AC/DC Evo Instruction Manual

Single-phase welding power source for ac and dc tig welding operations
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Translation of original instructions
Discovery 221AC/DC Evo
Discovery 300AC/DC Evo
Instruction manual
Antwerpsesteenweg 949 9041 Gent - Oostakker
info@welda.be
www.welda.be
T +32 (0)9 355 74 26
F +32 (0)9 355 92 01
Cod. 006.0001.2000
19/07/2018 V.2.0
ENG

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  • Page 1 Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 221AC/DC Evo Discovery 300AC/DC Evo Instruction manual Translation of original instructions Antwerpsesteenweg 949 9041 Gent - Oostakker info@welda.be T +32 (0)9 355 74 26 www.welda.be F +32 (0)9 355 92 01...
  • Page 2 Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD Antwerpsesteenweg 949 9041 Gent - Oostakker info@welda.be T +32 (0)9 355 74 26 www.welda.be F +32 (0)9 355 92 01...

  • Page 3: Table Of Contents

    11.4 EXPORTING/IMPORTING JOBs (through a USB memory stick) .............. 59 11.5 SELECTING JOBS USING THE TORCH BUTTONS ................61 TECHNICAL DATA ............................ 62 12.1 DISCOVERY 221AC/DC EVO ........................62 12.2 DISCOVERY 300AC/DC EVO ........................63 ELECTRICAL DIAGRAM .......................... 64 13.1 DISCOVERY 221AC/DC EVO ........................64 13.2 CRUISER 300 AC/DC EVO........................

  • Page 4: Introduction

    Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD INTRODUCTION IMPORTANT! This handbook must be consigned to the user prior to installation and commissioning of the unit. Read the "General prescriptions for use" handbook supplied separately from this handbook before installing and commissioning the unit.

  • Page 5: Introduction

    Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD 1.1 INTRODUCTION Discovery 221AC/DC Evo is an advanced technology single-phase welding power source for AC and DC TIG welding operations. Discovery 300AC/DC Evo is an advanced technology three-phase welding power source for AC and DC TIG welding operations. AC TIG functions are ideal for aluminium, magnesium and related alloys welding. Mild steel, stainless steel and copper can be easily welded in DC TIG. AC TIG welding is optimized thanks to: Synergic arc strike can be selected by the user interface according to tungsten electrode diameter. Extra fusion function maximizes arc focusing for considerable thin material in AC TIG welding. Mixed AC/DC increases arc penetration for thick aluminium plates.

  • Page 6: Installation

    Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD INSTALLATION DANGER! Lifting and positioning Read the warnings highlighted by the following symbols in the “General prescriptions for use”. 2.1 CONNECTIONS TO THE ELECTRICAL MAINS NETWORK The mains power supply features to which the equipment should be connected are given in chapter “12...

  • Page 7: Rear Panel

    Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD 2.3 REAR PANEL ○ Remote control connector [Item 1]. ○ Connector for gas feed hose: gas flow from the cylinder to the power source [Item 2]. ○ Cooling unit power feeding connector [Item 3]. • Voltage: 230 V a.c. • Current output: 1.35 A • IP protection rating: IP20 (cap open) / IP66 (cap closed) DANGER! High voltage! If the socket is not connected to any devices always close the cap ○...

  • Page 8: Preparing For Mma Welding

    Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD 2.4 PREPARING FOR MMA WELDING 1. Set the welding power source ON/OFF switch to “O” (unit switched off). 2. Plug the power cable plug into a mains socket outlet. 3. Choose the electrode based on the type of material and thickness of the workpiece to be welded. 4. Insert the electrode in the electrode holder. 5. Connect the electrode holder cable to the welding socket based on the polarity requested by the type of electrode used. 6. Connect the plug of the ground clamp to the welding socket on the basis of the polarity required.

  • Page 9: Preparing For Tig Welding

    Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD 2.5 PREPARING FOR TIG WELDING NOTE: For the cooler to power source assembly procedure refer to the cooler instruction manual. 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. 3. Connect the gas hose from the welding gas cylinder to the rear gas socket.

  • Page 10: User Interface

    Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD USER INTERFACE Discovery 221AC/DC Evo - Discovery 300AC/DC Evo Menu Menu E1/S5 MIX ac/dc MIX ac/dc DYN arc M-TACK Q-SPOT CODE SYMBOL DESCRIPTION DC TIG mode: illumination shows that the following parameter can be set: Q-START AC TIG mode: illumination shows that the following parameter can be set: MIX AC/DC MIX ac/dc...
  • Page 11 Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD CODE SYMBOL DESCRIPTION This LED illuminates to show that the following welding mode is selected: CONTINUOUS DC This LED illuminates to show that the following welding mode is selected: CONTINUOUS AC This LED illuminates to show that the following welding mode is selected: SYNERGIC PULSED DC TIG When this is on, it means that the synergic mode is active and that the operator can set just the welding current while the other parameters are automatically regulated by the machine. The synergy is optimised for angle welding. This LED illuminates to show that the following welding mode is selected: PULSED DC TIG This LED illuminates to show that the following welding mode is selected: PULSED AC TIG DC TIG mode: Press the button to select the DC TIG special functions. Possible choices: Q-START - DYNAMIC ARC - MULTI TACK - ELECTRODE DIAMETER AC TIG mode: Press the button to select AC TIG special functions. Possible choices: MIX AC - EXTRA FUSION - AC FREQUENCY – AC BALANCE - ELECTRO- DE DIAMETER Press the button to access the JOB MENU.

  • Page 12: Unit Power-Up

    Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD UNIT POWER-UP Set the welding power source ON/OFF switch to “I” to switch on the unit. The message appears on the following display: D1. FX.X = software version 300AC/DC F.X.X First power-up or power-ups following a RESET procedure The welding power source sets up for welding with the factory pre-sets. Subsequent power-ups The welding power source sets up for welding in the latest stable welding configuration that was active at the time of power-off. Antwerpsesteenweg 949 9041 Gent - Oostakker info@welda.be T +32 (0)9 355 74 26 www.welda.be...

  • Page 13: Reset (Load Factory Settings)

    Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD RESET (LOAD FACTORY SETTINGS) Menu Menu ACTIVATION SET-UP (14/15) ----------------------------------------------------- E1/S5 MAX CORR.UP MIX ac/dc MIX ac/dc SELECTION COUNTERS ***** DYN arc RESET M-TACK Q-SPOT OUTPUT The reset procedure involves complete restoration of the default values, parameters and memory set- tings set in the factory.

  • Page 14: Set Up (Initial Set-Up Of The Welding Power Source)

    Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD Menu Menu ○ Select with encoder E1 the following setting: RESET. Menu Menu ○ Press the S5 button Menu Menu ○ Select with encoder E1 the following setting: PAR (partial) o TOT (total). Menu Menu ○...
  • Page 15 Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD ○ Exit with confirmation - Press the S1 button Tab. 1 - Impostazioni di Setup IMPOSTAZIONE DEFAULT NOTE LANGUAGE ENGLISH ITALIANO FRANÇAIS DEUTSCH ESPAÑOL PORTUGUES DUTCH...
  • Page 16 Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD 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 17 Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD - PULSED TYPE ○ SLOW = This setting enables slow pulsed mode. The peak time and base time are set. ○ FAST= This setting enables fast pulsed mode. The frequency and duty-cycle are set. - PILOT ARC ○ The function enables the output of a low current between the 1st and 2nd times of the torch trig- ger to shield the mask in advance and avoid the risk of blinding flashback caused by the welding current.
  • Page 18 Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD SET UP The reading is carried out as follows: 7 hours and (0.2x60) POWER ON 7.2 h 12 minutes T. ARC. ON 5.3 h P. ARC ON 0.7 h...

  • Page 19: Alarm Management

    Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD ALARM MANAGEMENT STOP This symbol is shown if an incorrect operating condition occurs. An alarm message appears on the following display: D1. Tab. 2 - Alarm messages MESSAGE MEANING EVENT CHECKS • Make sure that the power re- Overheating alarm quired by the welding process is Indicates tripping of the welding lower than the maximum rated power source thermal protection.
  • Page 20 Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD MESSAGE MEANING EVENT CHECKS • Verificare che la torcia di sal- datura non sia appoggiata sul pezzo da saldare collegato alla massa. • Verificare che all’accensione del Tutte le funzioni sono disabilitate. generatore non vi sia un corto...

  • Page 21: Mma Welding

    Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD MMA WELDING 8.1 MMA WELDING - FIRST LEVEL MENU Menu Menu SETTING E1/S5 MIX ac/dc MIX ac/dc SELECTION DYN arc M-TACK Q-SPOT ACTIVATION Menu Menu ○ Press the S4 button to activate the MMA mode.
  • Page 22 Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD Tab. 3 - Parameters of the 1st level menu: MMA SETTING DEFAULT NOTES WELDING CURRENT MAX: Maximum value of welding 10 A 80 A MAX A...

  • Page 23: Mma Welding -Second Level Menu

    Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD 8.2 MMA WELDING -SECOND LEVEL MENU Menu Menu SECOND LEVEL (1/4) ----------------------------------------------------- E1/S5 MIX ac/dc MIX ac/dc ELECTRODE TYPE SETTING DYN arc M-TACK ARC VOLTAGE Q-SPOT...
  • Page 24 Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD Tab. 4 - Parameters of the 2nd level menu: MMA mode SETTING DEFAULT NOTES bAS= basic rUt= rutile ELECTRODE TYPE Crn= chromium/nick- Only MMA ALU= aluminium...

  • Page 25: Mma Welding - Special Functions

    Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD 8.3 MMA WELDING - SPECIAL FUNCTIONS Menu Menu SETTING E1/S5 MIX ac/dc MIX ac/dc DYN arc M-TACK Q-SPOT OUTPUT ○ Press the S1 button to activate the special function. - The setting to edit and its value are shown in the display D1.

  • Page 26: Tig Welding

    Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD - Consequences of a higher value: • Arc concentration. • Reduction of heat-affected zone. • Slower melt speed. TIG WELDING 9.1 TIG WELDING - FIRST LEVEL MENU Menu Menu SELECTION E1/S5...
  • Page 27 Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD Tab. 6 - Parameters of the 1st level menu: TIG DC, CONTINUOUS and TIG AC mode: SETTING DEFAULT MAX USEFUL ADVICE PRE-GAS TIME 0.0 s 0.1 s 10.0 s...
  • Page 28 Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD For a better understanding of the parameter functions described in the table, refer to the following diagram. (I1) WELDING CURRENT (I2) BASE CURRENT (I3) FINAL CURRENT...
  • Page 29 Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD - SECOND CURRENT B-LEVEL ○ With a rapid press and release (less than 0.5 seconds) of the torch trigger during welding, the out- put current value switches to the value set by means of the “B-level second current” parameter. ○ This function makes it possible to avoid interrupting the welding process when the geometry of the workpiece changes; alternatively, the welding current can be reduced to decrease heating of the part if it becomes too hot during execution of the welding process. ○ In DC TIG welding, the parameter is useful when welding different gauge workpieces during the same pass; when moving between different gauges the output current can be changed simply by pressing the torch trigger. - BASE CURRENT ○ Pulsed wave minimum current. - Consequences of a higher value: •...
  • Page 30 Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD - FINAL CURRENT ○ During electrode welding the parameter makes it possible to obtain a uniform deposit of filler ma- terial from the start to the end of the welding process, closing the deposition crater with a current such as to deposit a final droplet of filler material. ○ The value of this parameter can be set as a percentage of the welding current or as an absolute value expressed in Amperes. ○ The parameter is displayed but it is not used during the welding process when the following set- ting is present: MULTI TACK = ON ○ By keeping the torch trigger pressed during the 3rd time, the crater filler current is maintained thereby ensuring optimal crater filling, until the post gas time is started by releasing the torch trig- ger (4th time). - POST GAS TIME ○ Time of post gas delivery when the welding arc is extinguished. - Consequences of a higher value: •...

  • Page 31: Tig Welding - Second Level Menu

    Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD 9.2 TIG WELDING - SECOND LEVEL MENU Menu Menu ACTIVATION SECOND LEVEL (1/2) ----------------------------------------------------- E1/S5 MIX ac/dc MIX ac/dc HF STRIKE SELECTION DYN arc REMOTE CONTROL...
  • Page 32 Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD Tab. 8 - Parameters of the 2nd level menu: DC TIG mode SETTING DEFAULT MAX NOTES SPOT TIME 0.01s 0.01s 10.0s Solo con 2 Tempi SPOT...
  • Page 33 Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD SINUSOIDAL WAVE: ○ Benefits: • Good energy transmitted on the weld workpiece. • Appearance of a bright, clean weld bead. • Good execution speed and optimum penetration. • Low level of welding arc noise. ○ Disadvantages: • Slightly lower performance than with a Square wave. TRIANGULAR WAVE: ○ Benefits: • Low energy transmitted to the weld workpiece and therefore suitable for materials or alloys with low melting points.
  • Page 34 Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD HF ARC IGNITION PROCEDURE Position the tungsten electrode on the ignition point, so that there is a distance of about 2-3mm between the electrode and the workpiece Press the torch button according to the mode selected. The voltaic arc ignites without touching the weld workpiece. • LIFT-ARC: This type of arc blow is derived from a short low-amperage circuit (to avoid elec-...

  • Page 35: Tig Dc Welding - Special Functions Menu

    Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD 9.3 TIG DC WELDING - SPECIAL FUNCTIONS MENU Menu Menu SETTING E1/S5 MIX ac/dc MIX ac/dc DYN arc M-TACK Q-SPOT OUTPUT ACTIVATION ○ Press the S1 button to activate the special function.
  • Page 36 Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD Tab. 12 - Special functions in DC TIG mode - summary of the combinations MODE→ PROCEDURE con MULTI- ↓ TACK > 0 s with remote control with remote...
  • Page 37 Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD - DYNAMIC ARC ○ This function allows, on the reduction of the arc voltage, an increase of the welding current and vice versa. The size of the DynamicArc variation may be individually adjusted to a value between 1A to 50A. For example, an increase of 50A for 1 volt variation. ○ This value must be set depending on the material thickness, and the type of processing to be carried out (values between 1A and 20A for thin layers while a value between 20A and 50A for medium-thick layers). ○ Welding power remains constant even when the distance between electrode and workpiece changes.
  • Page 38 Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD - MULTI TACK ○ This consists of continual welding that allows optimum control of the thinnest gauge sheets/ bevels with irregular shapes. - Benefits: • Major reduction in oxidisation with the absence of deformations. • This parameter allows thin gauge sheet to be welded without deformation.

  • Page 39: Tig Ac Welding - Special Functions Menu

    Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD 9.4 TIG AC WELDING - SPECIAL FUNCTIONS MENU Menu Menu SETTING E1/S5 MIX ac/dc MIX ac/dc DYN arc M-TACK Q-SPOT OUTPUT ACTIVATION ○ Press the S1 button to activate the special function.
  • Page 40 Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD - MIX AC ○ This feature allows you to vary the welding current alternating a TIG AC weld with a TIG DC weld -. This allows the effectiveness of the TIG AC welding to combine with the penetration of the TIG DC welding, obtaining high welding speeds and creating more quickly the weld pool for cold-piece welding. ○ It is also possible to weld thicker gauges with modest amperages since the DC- portion is much higher than using a completely AC waveform. ○ The operator adjustable parameter is the percentage of AC wave compared to the DC- wave over the entire period ranging from 10% to 80%. - Consequences of a higher value: •...
  • Page 41 Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD EXTRA FUSION CURRENT EXTRA FUSION CURRENT EXTRA FUSION CURRENT EXTRA FUSION - AC INVERSION FREQUENCY ○ The frequency in TIG AC is the number of inversions by DC + to DC- as a unit of time (T1) and adjusted in Hertz (Hz). The reduction in the frequency value of the electric arc inversion tends to widen its size, therefore it is advisable to use low frequencies for the welding of relatively large thicknesses or for filling passes in multipass bevels. Conversely, in increasing the inversion fre- quency value, the arc size tends to decrease and therefore increases the concentration of the pool and the precision of the welding. It is therefore advisable to use high values of frequency for the welding of very thin thickness or for facings on edges of moulds - Consequences of a higher value: •...
  • Page 42 Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD INVERSION FREQUENCY LOW FREQUENCY T1 (s) T1(s) HIGH FREQUENCY T1 (s) - AC BALANCE ○ This parameter establishes the positive wave vs. negative wave time ratio.
  • Page 43 Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD AC BALANCE BALANCE + DC+ (50%) DC- (50%) BALANCE - DC+ (20%) DC- (80%) - ELECTRODE DIAMETER ○ The parameter optimizes the AC TIG welding arc strike on the basis of the diameter of the chosen electrode. Antwerpsesteenweg 949 9041 Gent - Oostakker info@welda.be T +32 (0)9 355 74 26 www.welda.be...

  • Page 44: Torch Trigger Procedure

    Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD 10 TORCH TRIGGER PROCEDURE Menu Menu E1/S5 MIX ac/dc MIX ac/dc DYN arc M-TACK Q-SPOT SELECTION Menu Menu ○ Press the S3 button to select the desired PULSED TORCH mode.
  • Page 45 Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD Tab. 16 - Pulsed Torch button mode table. PROCEDURE → ↓ Q-SPOT Q-SPOT MODE 2T HF 4T HF 4T B-L 4T B-L HF 2T Q-SPOT 2T Q-SPOT HF √...
  • Page 46 Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD matically. ○ The welding current reaches the pre-set value, by way of an up slope time, if programmed. ○ Release (2T) the trigger to start the weld completion procedure. ○ The current reaches the end current value in the time set in the down slope time parameter. ○ The arc is extinguished. ○ Gas delivery continues for the time set in the post gas parameter. 1St TIME 2nd TIME WELDING CURRENT STARTING FINAL CURRENT CURRENT UP SLOPE...
  • Page 47 Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD 4Th TIME 1St TIME 2nd TIME 3rd TIME WELDING CURRENT FINAL CURRENT C.C. CURRENT STARTING CURRENT DOWNL LIFT POST GAS SLOPE SLOPE IGNITION - 4 STROKE + HF ○...
  • Page 48 Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD 4 STROKE B-LEVEL LIFT: ○ Touch the workpiece with the torch electrode. ○ Press (1T) and keep the torch trigger pressed. ○ Slowly lift the torch to strike the arc. ○ The arc strikes, the welding current assumes the pilot current value. (if activated from the SET UP menu.) ○ Release (2T) the torch trigger. ○ The welding current reaches the pre-set value, by way of an up slope time, if programmed.
  • Page 49 Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD ○ Release (4T) the trigger to extinguish the arc. ○ Gas delivery continues for the time set in the post gas parameter. PRESS AND RELEASE 4th TIME 1st TIME 2nd TIME 3rd TIME PRIMARY CURRENT SECOND FINAL...

  • Page 50: Stroke Spot - Q-Spot Function

    Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD 10.1 2 STROKE SPOT - Q-SPOT FUNCTION Menu Menu ACTIVATION E1/S5 MIX ac/dc MIX ac/dc SELECTION/ DYN arc SETTING M-TACK Q-SPOT ACTIVATION OUTPUT ○ Press the S3 button to select the TORCH 2 STROKE SPOT BUTTON mode.
  • Page 51 Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD - Q-SPOT: ○ This function, only present in 2 STROKE SPOT, facilitates spot-welding: • It allows the exact positioning of the electrode at the point to be joined. The electrode is con- veniently placed at the desired location. • Only after lifting of the electrode, the machine emits pulse welding for the stipulated time. • It considerably reduces the risk of contamination of the joint with the electrode. • While pressing the torch button, the process may be repeated as many times as required.
  • Page 52 Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD - 2 STROKE SPOT HF: ○ Bring the torch up to the work until the electrode tip is approximately 2 or 3 mm away. ○ Press (1T) the torch trigger. ○ The arc strikes without contact with the workpiece and the voltage discharges (HF) cease auto- matically. ○ Release (2T) the torch trigger. ○ The welding current reaches the pre-set value, by way of an up slope time, if programmed. ○ The welding procedure continues, at the pre-set current, for the time set with the spot time pa- rameter.
  • Page 53 Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD 1. Position the torch 2. Press the torch Lift torch 4. The arc ignites for 5. The result of this with the electrode on trigger and keep it slightly.
  • Page 54 Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD Tab. 19 - Table showing enabled Welding Parameters MODE → MENU PROCEDURE Q-SPOT Q-SPOT Q-SPOT ↓ → PARAMETER ↓ WELDING 1° √ √ √ √ √...
  • Page 55 Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD Tab. 19 - Table showing enabled TIG AC Welding Parameters MODE → MENU PROCEDURE Q-SPOT Q-SPOT ↓ → PARAMETER ↓ 1° WELDING CURRENT 1° HOT-START 1°...

  • Page 56: Jobs Management

    Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD 11 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). JOBs can be managed only when the unit is not in welding mode. The SETUP menu settings cannot be saved by means of the JOBs. When a JOB is loaded and an UP/DOWN torch is installed, press the torch triggers to select the saved JOBS. If there are no JOBS loaded, the UP/DOWN buttons on the torch serve to adjust the welding current. 11.1 SAVING A JOB Menu Menu SELECTION JOB MENU ----------------------------------------------------- E1/S5 MIX ac/dc MIX ac/dc CONFIRMATION --->>...

  • Page 57: Deleting A Job

    Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD 11.2 DELETING A JOB Menu Menu SELECTION JOB MENU ----------------------------------------------------- E1/S5 MIX ac/dc MIX ac/dc --->> DELETE CONFIRMATION DYN arc MENU to confirm M-TACK Q-SPOT ACTIVATION OUTPUT ○...

  • Page 58: Loading A Job

    Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD 11.3 LOADING A JOB Menu Menu SELECTION JOB MENU ----------------------------------------------------- E1/S5 MIX ac/dc MIX ac/dc --->> LOAD CONFIRMATION DYN arc MENU to confirm M-TACK Q-SPOT ACTIVATION OUTPUT ○...

  • Page 59: Exporting/Importing Jobs (Through A Usb Memory Stick)

    Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD 11.4 EXPORTING/IMPORTING JOBs (through a USB memory stick) By using a USB memory stick, the JOBs saved on the panel can be exported and imported into another panel. When a USB memory stick is connected, the JOB MENU will display the items related to the importing and exporting procedure. WARNING! The JOBs are exported to the USB memory stick with the name of the location where they are saved on the panel. If the file names of the JOBs saved onto the USB memory stick are changed by using a PC, after they are imported into the destination panel, they will still be saved in their original location. This means that, if the destination panel already contains JOBs saved in the same location as those exported to the memory stick, they will be overwritten. We recommend not to change the name of the files exported to the USB memory stick. The file extension (.bin) must never be changed.
  • Page 60 Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD ○ Insert the memory stick in the USB port ○ Press the S2 button to enter the JOB MENU. Menu Menu ○ Use the encoder E1 , to select USB EXPORT.

  • Page 61: Selecting Jobs Using The Torch Buttons

    Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD ○ Insert the memory stick in the USB port ○ Press the S2 button to enter the JOB MENU. Menu Menu ○ Use the encoder E1 to select USB IMPORT.

  • Page 62: Technical Data

    Construction standards EN 60974-1; EN 60974-3; EN 60974-10 Class A Equipment compliant with European directives in force Equipment suitable in an environment with increased hazard of electric shock Conformity markings Equipment compliant with WEEE directive ü Equipment compliant with RoHS directive RoHS 12.1 DISCOVERY 221AC/DC EVO Supply voltage 1 x 230V ~± 15 % / 50-60 Hz Mains protection 25 A Delayed Compliant with EN 61000-3-12 Zmax Hook-up not dependent on the supply network Dimensions ( L x D x H ) 460 x 230 x 325 mm...

  • Page 63: Discovery 300Ac/Dc Evo

    Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD 35% (40° C) 15.2 A 40% (40° C) 18.9 A Maximum Effective Supply Current 60% (40° C) 17.2 A 15.6 A 100 % (40° C) 16.3 A 16.3 A...

  • Page 64: Electrical Diagram

    Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD 13 ELECTRICAL DIAGRAM 13.1 DISCOVERY 221AC/DC EVO 9 8 7 6 4 3 2 1 Antwerpsesteenweg 949 9041 Gent - Oostakker info@welda.be T +32 (0)9 355 74 26 www.welda.be...

  • Page 65: Cruiser 300 Ac/Dc Evo

    Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD 13.2 DISCOVERY 300 AC/DC EVO Antwerpsesteenweg 949 9041 Gent - Oostakker info@welda.be T +32 (0)9 355 74 26 www.welda.be F +32 (0)9 355 92 01...

  • Page 66: Torch Connector (Front Panel)

    Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD 13.3 TORCH CONNECTOR (front panel) INTERNAL VIEW cod. 021.0004.3360 Torch UP/DOWN torch UP & DOWN TORCH TORCH P.T. P.T. P.T. P.T. N.C. N.C. DOWN N.C. N.C.

  • Page 67: Spare Parts

    Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD 14 SPARE PARTS 14.1 DISCOVERY 221AC/DC EVO Antwerpsesteenweg 949 9041 Gent - Oostakker info@welda.be T +32 (0)9 355 74 26 www.welda.be F +32 (0)9 355 92 01...
  • Page 68 Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD N° CODE DESCRIPTION N° CODE DESCRIPTION 014.0002.0002 KNOB 43 041.0004.0301 HALL SENSOR FRONT PANEL LABEL (221AC/DC 44 050.0001.0042 AMPHENOL CONN. BOARD 013.0012.1701 EVO) 45 011.0002.0036 SOLENOID VALVE BLOCK...

  • Page 69: Discovery 300Ac/Dc Evo

    Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD 14.2 DISCOVERY 300AC/DC EVO Antwerpsesteenweg 949 9041 Gent - Oostakker info@welda.be T +32 (0)9 355 74 26 www.welda.be F +32 (0)9 355 92 01...
  • Page 70 Cod. 006.0001.2000 Discovery 221AC/DC Evo 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD N° CODE DESCRIPTION N° CODE DESCRIPTION 014.0002.0002 KNOB 43 041.0004.0301 HALL SENSOR FRONT PANEL LABEL (300AC/DC 44 050.0001.0042 AMPHENOL CONN. BOARD 013.0012.1801 EVO) 45 011.0002.0036 SOLENOID VALVE BLOCK 050.0003.0038...
  • Page 71 Discovery 221AC/DC Evo Cod. 006.0001.2000 19/07/2018 V.2.0 Discovery 300AC/DC Evo ENGLISH WELD THE WORLD Antwerpsesteenweg 949 9041 Gent - Oostakker info@welda.be T +32 (0)9 355 74 26 www.welda.be F +32 (0)9 355 92 01...
  • Page 72 Cod. 006.0001.2000 19/07/2018 V.2.0 Antwerpsesteenweg 949 9041 Gent - Oostakker info@welda.be T +32 (0)9 355 74 26 www.welda.be F +32 (0)9 355 92 01...

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