Weco Multi Power 204T Bedienungsanleitung
Cod. 006.0001.1420
08/09/2021 V.2.12
Multi Power 204T
Instruction manual
ENG
Translation of original instructions
WELD THE WORLD
Cod. 006.0001.1420
08/09/2021 V.2.12 Multi Power 204T
2
ENGLISH
WELD THE WORLD
Cod. 006.0001.1420
08/09/2021 V.2.12
Multi Power 204T
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ENGLISH
INDEX
1 INTRODUCTION.......................................................................................................................................... 4
1.1 PRESENTATION.......................................................................................................................................... 5
2 INSTALLATION .......................................................................................................................................... 6
2.1 CONNECTIONS TO THE MAINS POWER SUPPLY .................................................................................. 6
2.2 FRONT PANEL............................................................................................................................................. 6
2.3 REAR PANEL............................................................................................................................................... 7
2.4 PREPARING FOR MMA WELDING............................................................................................................. 8
2.5 PREPARING FOR TIG WELDING ............................................................................................................... 9
3 USER INTERFACE .................................................................................................................................... 10
4 UNIT POWER-UP ...................................................................................................................................... 13
5 RESET (LOAD FACTORY SETTINGS)..................................................................................................... 14
6 SET-UP (INITIAL SET-UP OF THE WELDING POWER SOURCE) ......................................................... 15
6.1 TORCH LOADING ..................................................................................................................................... 17
7 ALARM MANAGEMENT ........................................................................................................................... 18
8 DERATING................................................................................................................................................. 20
9 MMA WELDING......................................................................................................................................... 21
9.1 MMA WELDING - FIRST LEVEL MENU .................................................................................................... 21
9.2 MMA WELDING - SECOND LEVEL MENU ............................................................................................... 23
9.3 MMA WELDING - SPECIAL FUNCTIONS ................................................................................................. 25
10 DC TIG WELDING ..................................................................................................................................... 26
10.1 DC TIG WELDING - FIRST LEVEL MENU ................................................................................................ 26
10.2 TIG DC WELDING - SECOND LEVEL MENU ........................................................................................... 31
10.3 TIG DC WELDING - SPECIAL FUNCTIONS MENU ................................................................................. 34
11 TORCH TRIGGER PROCEDURE ............................................................................................................. 38
11.1 2 STROKE SPOT - Q-SPOT FUNCTION .................................................................................................. 44
12 JOBS MANAGEMENT .............................................................................................................................. 49
12.1 SAVING A JOB ........................................................................................................................................... 49
12.2 DELETING A JOB ...................................................................................................................................... 50
12.3 LOADING A JOB ........................................................................................................................................ 51
12.4 SELECTING JOBS USING THE TORCH BUTTONS ................................................................................ 51
13 TECHNICAL DATA .................................................................................................................................... 52
13.1 MULTI POWER 204T ................................................................................................................................. 52
14 WIRING DIAGRAM.................................................................................................................................... 54
14.1 TORCH CONNECTOR (front panel) .......................................................................................................... 55
14.2 REMOTE CONTROL CONNECTOR (back panel)..................................................................................... 55
15 SPARES..................................................................................................................................................... 56
15.1 MULTI POWER 204T ................................................................................................................................. 56
15.2 TORCH CONNECTORS COMPLETE KIT................................................................................................. 58
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1 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.
The meaning of the symbols in this manual and the associated precautionary information are given in
the "General prescriptions for use”.
If the "General prescriptions for use" are not present, it is mandatory to request a replacement copy
from the manufacturer or from your dealer.
Retain these documents for future consultation.
LEGEND
DANGER!
This pictogram warns of danger of death or serious injury.
WARNING!
This pictogram warns of a risk of injury or damage to property.
CAUTION!
This pictogram warns of a potentially hazardous situation.
INFORMATION!
This pictogram gives important information concerning the execution of the relevant operations.
This symbol identies an action that occurs automatically as a result of a previous action.
This symbol identies additional information or a reference to a dierent section of the manual
containing the associated information.
§ This symbol identies a reference to a chapter of the manual.
*1 The symbol refers to the associated numbered note.
NOTES
The gures in this manual are purely guideline and the images may contain dierences with respect to
the actual equipment to which they refer.
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1.1 PRESENTATION
Multi Power 204T is an inverter DC TIG/MMA portable welding power source.
The sturdiness of the components of this unit makes it a reliable working companion for workshop and
outdoor applications.
The available DC TIG functions and digital control make this unit ideal for maintenance, building con-
struction, and light metalwork.
In MMA welding the Hot Start and Arc Force functions are adjustable and they allow improved arc strik-
ing, a atter bead and more uniform weld.
The Anti Sticking function makes it possible to detach the electrode rapidly from the workpiece in the
event of accidental sticking.
Up to 4,00mm diameter electrode welding is possible in MMA.
The power source is designed to guarantee safety and exibility through the following features:
OVERCUT: in case of over-voltage in the supply line, the supply to the power source is cut o.
The overcut protection protects electronic parts of the machine against damage caused by voltage
surges.
CURRENT AUTO-CALIBRATION: the power source works at a supply voltage ranging between
115V~±15%/50-60Hz and 230V~±15%/50-60Hz.
The maximum value of the adjustable welding current is automatically limited based on the supply volt-
age measured when the power source is switched on.
DERATING: Derating limits current during welding when supply voltage drops below the limit value of
190Vac.
This limits current input so as not to overload the inverter and keeps the welding arc stable.
FANS: Fan speed varies based on power source internal temperature measured by thermal sensors.
This function brings the following improvements:
- reduction of noise.
- reduction of dust extracted (cleaner equipment, less maintenance).
The welding modes and procedures available are those indicated in the table.
MODE PROCEDURE
MMA
TIG CONTINUOUS
2 STROKE LIFT-ARC (2T)
+ 2 STROKE + HF (2T HF)
4 STROKE LIFT-ARC (4T)
TIG PULSED
+ 4 STROKE + HF (4T HF)
4 STROKE BI-LEVEL (4T B-LEVEL)
+ 4 STROKE BI-LEVEL + HF (4T B-LEVEL HF)
SYNERGIC TIG
2T SPOT
+ 2T SPOT + HF
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Accessories that can be connected to the unit:
• manual remote control for remote adjustment of the welding current.
• foot-pedal remote control for TIG torch arc striking and remote adjustment of welding current.
• UP/DOWN torch or torch with potentiometer.
• liquid cooler for TIG torches.
2 INSTALLATION
DANGER!
Lifting and positioning
Read the warnings highlighted by the following symbols in the “General prescriptions for use”.
2.1 CONNECTIONS TO THE MAINS POWER SUPPLY
The characteristics of the mains power supply to which the equipment shall be connected are given in
the chapter entitled “12 TECHNICAL DATA” on page 48.
The machine can be connected to motor-generators provided their voltage is stabilised.
Connect/disconnect the various devices with the machine switched o.
2.2 FRONT PANEL
32 4 1
○ Negative pole welding socket.[Item 1].
○ Positive pole welding socket.[Item 2].
○ Connector for logic signals of TIG torch.[Item 3].
○ Connector for gas feed hose: Torch power source [Item 4].
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2.3 REAR PANEL
1
5
3
6
2
4
○ Welding power source ON/OFF switch [Item 1].
○ Remote control connector [Item 2].
○ Connector for gas feed hose [Item 3]
• cylinder-generator
○ Power cable. [Item 4].
• Total length (including internal part): 2.5 m;
• Number and cross section of wires: 3 x 2.5 mm2
• Type of plug supplied: Schuko
○ Warning LED for overcut protection triggering [Item 5].
○ Pre-arrangement for the supply socket of the cooling unit (purchasing and installing the relative
kit) [Item 6].
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2.4 PREPARING FOR MMA WELDING
1. Set the welding power source ON/OFF switch to “O” (unit o).
2. Plug the power cable plug into a mains socket.
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 clamp plug to the following welding socket: Positive pole welding
socket.
6. Connect the earth clamp plug to the following welding socket: Negative pole welding socket.
7. Connect the earth clamp to the workpiece being processed.
DANGER!
Electric shock hazard!
Read the warnings highlighted by the following symbols in the “General prescriptions for use”.
8. Set the welding power source ON/OFF switch to “I” (unit on).
9. Select the following welding mode on the user interface: MMA
10. Set the required welding parameter values on the user interface.
When the remote control [RC] is connected and enabled, the welding current can be adjusted.
The system is ready to start welding.
REAR VIEW FRONT VIEW
RC
REMOTE
CONTROL
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Multi Power 204T
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2.5 PREPARING FOR TIG WELDING
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 connection.
4. Open the cylinder gas valve.
5. Connect the gas hose of the welding torch to the front gas connection.
6. Connect the electrode holder clamp plug to the following welding socket: Negative pole welding
socket.
7. Choose the electrode based on the type of material and thickness of the workpiece to be welded.
8. Insert the electrode in the TIG torch.
9. Connect the earth clamp plug to the following welding socket: Positive pole welding socket.
10. Connect the earth clamp to the workpiece being processed.
11. Set the welding power source ON/OFF switch to “I” (unit powered).
12. Select the following welding mode on the user interface: DC TIG
13. Press the torch trigger with the torch well clear of any metal parts. This serves to open the gas
solenoid valve without striking the welding arc.
14. Use the ow control valve to adjust the ow of gas as required while the gas is owing out.
15. Set the required welding parameter values on the user interface.
When the remote control pedal is connected and the relative locking screw is tightened the
welding current will vary in relation to the pressure exerted on the pedal.
The system is ready to start welding.
REAR VIEW FRONT VIEW
RC
REMOTE
CONTROL
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ENGLISH
3 USER INTERFACE
MULTI POWER 204T
SYN
L1 L2 L3
L15
L13
L14
L10 L11L12
L29 L28
D1 S1
S2
E1
L6
S3 S4 S5 S6
L9
L8
L4
L5
L7
L33
L31
L32
L30
L26 L27
L18
L22
L20
L21
L23
L24
L25
L17
L16
L19
CODE SYMBOL DESCRIPTION
L1 This LED illuminates to show an anomaly in the operating conditions.
L2
Illuminates to show the last voltage and current values measured during welding.
The value appears on the display D1:
The “HOLD” function is cleared when a new weld is started or when any setting is changed.
L3 This LED illuminates to conrm the presence of power on the output sockets.
L4
Illumination shows that the following function has been activated: VRD (reduced output volt-
age).
The no-load voltage between the welding sockets is switched from U0 to Ur (see technical
data).
L5 Illuminates to show that a previously saved JOB has been loaded.
L6 This LED indicates that the current reference is set up by the remote control.
L7 When this LED illuminates the 2nd level Menu parameter is shown.
L8 Illumination shows that the following function has been activated: HIGH FREQUENCY ARC
STRIKE (HF)
L9 Illuminates to show a value in the following unit of measurement: KILOHERTZ
L10 Illuminates to show a value in the following unit of measurement: AMPERES
L11 Illuminates to show a value in the following unit of measurement: VOLTS
L12 Illumination shows that the following parameter can be displayed: ELECTRODE TYPE
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