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ALFA IN  a.s. ©                                  

 

 

   

www.alfain.eu

 

1. 

INTRODUCTION 

Congratulations on your new ALFA IN product. We are proud to have you as 
our customer and will strive to provide you with the best service and reliability 
in the industry.  

This Operating Manual has been designed to instruct you on the correct use 
and operation of your ALFA IN product. Your satisfaction with this product 
and its safe operation is our ultimate concern. Therefore please take the time 
to read the entire manual, especially the Safety Precautions. They will help 
you to avoid potential hazards that may exist when working with this product. 

Read and understand this entire Manual and your employer’s safety 
practices before installing, operating, or servicing the equipment. While the 
information contained in this Manual represents the Manufacturer's best 
judgement, the Manufacturer assumes no liability for its use. 

ALF 251/261/280/320/400 aXe are three phase sturdy welding machines for 
MIG/MAG welding.  

The machines are designed to produce maximum power output combined 
with high reliability and efficiency.  

The users interface is as simple as possible; however, there are secondary 
parameters that can be set from the main front panel if suitable.  All of them 
are available in compact models, ALF 280, 320 and 400 can be ordered also 
as sets consisting of the generator, interconnection cable bundle and 
separate wire feeding unit. We will refer to the MINOR2-MAJOR and 
SYNERGY controls as DIGITAL. 

CONTROL MODEL 

BASIC 

MINOR2 

MAJOR 

SYNERGY 

A + V meter 

optional 

NO 

YES 

YES 

Wire initial speed (Soft Start) 

NO 

NO 

YES 

YES 

Advice of the parameter settings 

NO 

NO 

NO 

YES 

Electronic feedback of the wire 
speed 

NO 

YES 

YES 

YES 

2 stoke / 4 stroke 

YES 

YES 

YES 

YES 

Adjustable Post and Pre Gas 
time 

NO 

YES 

YES 

YES 

Spot and Interval welding 

YES 

YES 

YES 

YES 

Adjustable Burn Back Time 

NO 

YES 

YES 

YES 

 

Summary of Contents for ALF 251 aXe

Page 1: ...ALFA IN a s www alfain eu Version 1 MIG MAG WELDING MACHINES ALF 251 aXe ALF 261 aXe ALF 280 aXe ALF 320 aXe ALF 400 aXe MINOR2 MAJOR SYNERGY BASIC INSTRUCTION MANUAL ...

Page 2: ...TION 3 2 SAFETY INSTRUCTIONS AND WARNINGS 4 3 CONDITIONS OF USE 8 4 TECHNICAL DATA 8 5 ACCESSORIES 10 6 DESCRIPTION OF THE APPLIANCE 11 7 GETTING STARTED 18 8 WELDING 22 9 ROUTINE MAINTENANCE INSPECTION 27 10 STATEMENT OF WARRANTY 28 11 DISPOSAL 28 ...

Page 3: ...gement the Manufacturer assumes no liability for its use ALF 251 261 280 320 400 aXe are three phase sturdy welding machines for MIG MAG welding The machines are designed to produce maximum power output combined with high reliability and efficiency The users interface is as simple as possible however there are secondary parameters that can be set from the main front panel if suitable All of them a...

Page 4: ...regulations on safety The position of the machine must allow easy access by the operator to the controls and connectors When the welding machine is operating all its covers and doors must be closed and well fixed Do not expose the welding machine to direct sunlight or to heavy rain This equipment conforms to protection rating IP23S The operator must wear gloves clothes shoes and a helmet or a weld...

Page 5: ...hearing from loud noise wear protective ear plugs and or ear muffs Protect others in the workplace Noise levels should be measured to be sure the decibels sound do not exceed safe levels The operator must ensure all flammable materials are removed from the work area to avoid any risk of fire The operator must NEVER weld containers that have previously contained petrol lubricants gas or similar fla...

Page 6: ...ock DC current 113V peak value AC current 113V peak value and 80V effective 3 Torches held mechanically with increased protection for the operator DC current 141V peak value AC current 141V peak value and 100V effective 4 Plasma cutting DC current 500V peak value In case 1 the dc machines with rectifier must be built in such a way that in case of a fault developing in the rectifier for example ope...

Page 7: ...diation Risk of inhaling gas fumes and dust particles Burns Noise NOTE It is forbidden to operate a machine with damaged insulation of the welding torch or supply cable Never operate the machine taken down or damaged covers It is forbidden to operate the machine in wet environments and outdoors in rain or snow Ensure proper grounding clamping pliers which also reduces the risk of electric shock Us...

Page 8: ...be need for special measures see EN 60974 10 The machine must be protected against a moisture and rain and snow b mechanical damage c draft and any ventilation of neighbouring machine d excessive overloading crossing technical parameters e rough handling 4 TECHNICAL DATA ALF 251 ALF 261 Mains voltage V Hz 3x400 50 3x400 50 Mains protection A 16 16 T Max input power I1 A 17 0 17 9 Max effective cur...

Page 9: ...urrent DC 100 I2 U2 A V 170 22 5 200 24 0 240 26 0 Welding current DC 60 I2 U2 A V 210 24 5 230 25 5 290 28 5 Welding current DC x I2 U2 A V 30 290 28 5 25 340 31 0 25 400 34 0 Voltage steps 10 12 2 x 10 Insulation class F F F Protection IP 23S IP 23S IP 23S Standards EN 60 974 1 EN 60 974 1 EN 60 974 1 Dimensions w x l x h compact mm 500x868x806 500x868x806 500x868x806 Dimensions w x l x h genera...

Page 10: ...HINE Earthing cable 3m with a clamp Feed roll 0 8 1 0mm Gas hoses 5 2 ACCESSORIES TO ORDER Wire cleaner CO2 Gas pre heating cable Reduction valve KU 5 K 2 Gay cylinder Torch consumables Earthing cable 4 5 m Feed rolls 0 6 0 8 1 0 1 2 1 4 1 6 for carbon steels aluminium flux core wires Torches with UP DOWN remote control Welding torches see the table below Torch type Cooling Welder MB 24KD Gas ALF ...

Page 11: ... 11 ALFA IN a s www alfain eu 6 DESCRIPTION OF THE APPLIANCE 6 1 MAIN PARTS Fig 1 Main parts of ALF compact aXe Fig 2 Main parts of ALF compact aXe ...

Page 12: ... 12 ALFA IN a s www alfain eu Fig 3 Main parts of ALF Separate aXe Fig 4 Main parts of ALF Separate aXe A1 ON OFF Switch A2 Switch coarse A3 Switch smooth ...

Page 13: ... Holder Generator A14 Quick Connector A15 Connector female A16 Connector male A17 Quick Connector male A18 Clamp for the cable Bundle A19 Clamp for the cable Bundle A20 Cable Bundle Inlet Feeder A21 Cable Bundle A22 Cable Bundle Generator A23 LED ON Indicator A24 Gas heater connector 6 2 CONTROL PANEL OVERVIEW Fig 5 ALF 400 aXe control panel V1 PCB encoder V2 ON OFF Switch V3 Switch coarse V4 Swit...

Page 14: ...rol panel Pos Symbol Description X1 Button Wire insertion default RESET together with button X2 X2 Button Gas test default RESET together with button X1 X3 Button Switches between 2S or 4S Press more than 3s will initiate spot or interval mode Enters secondary parameters together with button X5 X4 Green LED 2 Stroke ...

Page 15: ...rG Pre gas time s PoG Post gas time s brn Burn back time s SPo Time of tack welding s Int Time of interval s X9 LED Cooling circuit error X10 LED Lights after finishing welding and signals the HOLD function of A V last measured parameters X11 LED Thermal overheating Leave the machine on to cool down by means of the fans X12 Right Display Voltage real Values of the secondary parameters Switches and...

Page 16: ...he spot welding mode has been selected X20 Encoder Sets wire speed all models Amperage or material thickness just SYNERGY Selects program No just SYNERGY Sets secondary parameters 6 4 BASIC CONTROL PANEL Fig 7 BASIC control panel V2 On Off Switch V3 Switch Coarse V4 Switch Fine V5 Wire speed V6 Spot time V7 Interval time V8 LED ON ...

Page 17: ...Wire insertion V12 Gas test V13 A meter optional V14 V meter optional 6 5 WIRE FEEDER Fig 8 Wire feeder 4 rolls 2 rolls Pos Description E1 Fixing shaft E2 Pressure arm E3 Liner Feeder E4 EURO connector E5 Roll Plastic cup PS 2 W PS 4 W 2 rolls 4 rolls a 22 mm a 22 mm a b b 30 mm b 30 mm ...

Page 18: ...513 0 8 1 0 2318 1 0 1 2 2319 1 2 1 4 2320 1 2 1 6 2321 1 6 2 0 2514 Flux core 2 0 2 4 2515 7 GETTING STARTED Fig 9 Earthing cable connecting C1 Quick Connector Male C2 Earthing Clamp C3 Quick Connector C4 Quick Connector Connect the quick connector C1 into C3 or C4 according the welding current Connect the earthing clamp C2 to the welding piece In case your appliance is a model with separate wire...

Page 19: ...n BASIC 7 1 INSERTING THE WIRE Fig 10 Spool holder Open the side cover of the wire feeder space Put the wire spool on the wire spool holder D1 using the adapter D3 and fix it with the fixing nut D2 Cut off the curved or damaged end of welding wire and lead it through the inlet liner E3 and the roll into the liner inside the EURO torch connector about 5 cm Make sure that you use the suitable groove...

Page 20: ...o different diameters of welding wire the rolls have two grooves When the machine is equipped with two roll wire feeder move the lever E1 to the right 2 roll feeder forward 4 roll feeder The pressure arm shall pop up Unscrew the plastic fixing cup E5 and take off the roll In case there is suitable groove on the roll turn it around and fix it back to the feeder 1 0 1 0 1 2 0 8 A B C Fig 12 The infl...

Page 21: ... Liner G7 Sustain pipe for teflon and plastic liner 7 5 GAS FLOW SETTING The electric arc and the weld must be perfectly shielded by gas Too small amount of gas does not perform the protective atmosphere and on the other hand to big amount of the gas brings air into the electric arc Fig 14 Gas fitting F1 Gas Cylinder F2 Cylinder Valve F3 Gas heater connector F4 Pressure Reducer F5 High Pressure Ma...

Page 22: ...t X2 for digital V12 for BASIC Adjust the amount of gas on the reduction gas valve it is not a part of the welding machine by the F7 adjusting screw Release the button X2 for digital V12 for BASIC 8 WELDING For orientating adjusting of the welding current and voltage you can use empirical relation U2 14 0 05 2 From that you can specify desired voltage 8 1 SETTING WELDING CURRENT AND VOLTAGE When t...

Page 23: ...TROKE DIGITAL Press the button X3 2T 4T and select the LED X18 The four stroke mode is being used mostly for long welds when there is no need to hold the torch button pressed The welding procedure start by pressing the torch button after releasing the torch button the welding continues The welding stops after the second pressing and releasing the torch button then FOUR STROKE BASIC Set the potenti...

Page 24: ...the button 3 for more than 3 s SPOT AND INTERVAL WELDING BASIC SPOT and INTERWAL welding in BASIC are just in 2T SPOT WELDING The potentiometer V7 must be in 0 position By means of potentiometer V6 select the time of a spot INTERVAL WELDING By means of potentiometer V6 select the time of a spot and by means of potentiometer V7 select the time of an interval the period during which the machines do ...

Page 25: ...eter When you press the button X3 the value of the previous parameter had been stored 8 4 SYNERGY MODE ONLY FOR THE SYNERGY MODELS Synergy machines can advise the welder the optimum settings Please keep in mind that those machines are not equipped with incremental sensors and therefore the advised settings are always approximate 1 3 steps on the fine voltage step It depends also on welding positio...

Page 26: ...button X3 If within 10 s is not selected program and confirmed by button X3 LED X16 would turn off and program has not been selected Fig 15 Table of programs ALF320 ALF400 Fig 16 Table of programs ALF280 8 5 SYSTEM OF ADVICES ON DISPLAY X12 JUST SYNERGY First left figure coarse voltage A B JUST ALF 400 Second left figure fine voltage 1 9 the tenth position of the switch is signed as 0 ALF 320 show...

Page 27: ...can cause metal particles to interfere with sensitive electronic components and cause damage to the welder To clean the welder disconnect it from the mains supply voltage then open the enclosure and use a vacuum cleaner to remove any accumulated dirt and dust The welder should also be wiped clean If necessary solvents that are recommended for cleaning electrical apparatus may be used Troubleshooti...

Page 28: ... please contact your ALFA IN product supplier for the warranty repair procedure ALFA IN warranty will not apply to Equipment that has been modified by any other party other than ALFA IN s own service personnel or with prior written consent obtained from ALFA IN Service Department Equipment that has been used beyond the specifications established in the operating manual Installation not in accordan...

Page 29: ...tive 2002 96 EC on electrical and electronic equipment waste and its implementation in accordance with national law electric tools that have reached the end of their service life must be collected separately and returned to an environmentally compatible recycling facility ...

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