Alfain PEGAS 250 MIG SYN User manual

ALFA IN a.s. © www.alfain.eu PEGAS 250-320 MIG SYN manual EN 05
WELDING MACHINES
PEGAS 250 MIG SYN
PEGAS 320 MIG SYN
INSTRUCTION MANUAL

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CONTENT
1. IN RODUC ION ......................................................................................... 3
2. SAFE Y PRECAU IONS ............................................................................ 4
3. OPERA ING CONDI IONS ........................................................................ 5
4. ECHNICAL DA A ...................................................................................... 6
5. ACCESSORIES ........................................................................................... 7
6. DESCRIP ION OF HE APPLIANCE ......................................................... 8
7. BASIC SE INGS ..................................................................................... 14
8. MIG/MAG WELDING SYNERGY ............................................................... 17
9. MIG/MAG WELDING MANUAL ................................................................. 18
10. MMA WELDING (COA ED ELEC RODE- ELE) ....................................... 19
11. ROU INE MAIN ENANCE & INSPEC ION .............................................. 19
12. DISPOSAL ................................................................................................. 23

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1. INTRODUCTION
Dear Consumers!
Company ALFA IN a.s. thanks you for buying our product and believe that you
will be satisfied with our machine.
Welding machine PEGAS 250/320 MIG SYN is IGB invertor. It is designed for
welding method MIG (Metal Inert gas) and MAG (Metal Active Gas). his is
welding in protective atmosphere. We are using inert (impassive) and active
gases during welding. hese methods are very productive and particularly
suitable for the connections of structural steels.
With welding machine PEGAS 250/320 MIG SYN it is possible to weld different
types of connections (blunt, single-sided, double-sided, fillet, lap etc.) using wire
diameter from 0,6 – 0,8 mm, or 1,0 – 1,2 mm of different metals and alloys
(carbon and alloy steels, aluminum alloys etc.).
S
he machine can be used for welding in areas with increased
danger of electric shock. Machines comply with the relevant requirements for CE
marking.
We reserve the law of adjustments and changes in case of printing errors,
change of technical parameters, accessories etc. without previous notice. hese
changes may not be reflected in the manuals for use in paper or electronic form.

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2. SAFETY PRECAUTIONS
PERSONAL PROTECTION
1. For safety reasons, it is necessary to use welding gloves during welding.
hese gloves will protect you before intervention of electric current
(open circuit voltage). It protects you against thermal radiation and splashing
drops of hot metal too. Wear sturdy isolated shoes. Do not wear open shoes,
because drops of hot metal can cause burns.
2. Do not look into the welding arc without eye and face protection. Always use
good quality welding helmet with intact protective filter.
3. he persons appearing in the vicinity of the welding must be informed of the
danger and must be equipped with protective equipment.
4. During welding, especially in small spaces, it is necessary to ensure an
adequate supply of fresh air, because during welding, harmful fumes arise.
5. In tanks of gas, oil, fuel, etc., (even empty ones) do not make welding,
because there is a chance of explosion.
6. In areas with chance of explosion special provisions are applied.
7. Welding machines that are subjected to great exertion must comply with
specific security requirements. hese include the rail pressure of the vessel
etc. hese connections may only be carried out by competently trained
welders with the necessary permissions.
SAFETY REGULATIONS
1. Before starting work with welding machine it is necessary to get familiar with
the provisions of the ČSN 050601 and norm ČSN 050630.
2. With a bottle of CO2 or mixed gases should be handled according to the
regulations for working with pressure vessels contained in ČSN 07 83 05 and
norm ČSN 07 85 09.
3. he welder must use protective equipment.
4. Before working on the electrical part, removing the cover or cleaning it is
necessary to disconnect the device from the network.

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3. OPERATING CONDITIONS
1. Putting the machine into operation can be performed only by trained
personnel and only within the technical provisions. he manufacturer is not
liable for damages resulting from improper use or handling. For maintenance
and repair, use only original spare parts from ALFA IN.
2. Device complies with IEC 61000-3-12.
3. he welding machine is tested according to the degree of protection IP 23S,
which provides protection against the intrusion of solid bodies with a diameter
greater than 12 mm and protection against ingress of water, falling on the
machine in a vertical direction or max degree of 60°.
4. he machine must be positioned so that cooling air can enter and leave
through cooling vents with no problem. It is necessary to ensure that there
are no mechanical equipment, especially metal particles (e.g. during grinding)
drawn into the machine.
5. Handling handle is intended for movement, it is not designed to lifting the
machine.
6. In case of overheating of the machine welding is automatically stopped and
this condition is signalized by pilot light.
7. All interventions in the el. equipment as well as repair (removal of the plug,
fuse replacement) should be performed by an authorized person.
8. With competent mains voltage and input must match the plug.
9. Do not use the machine for other purposes, such as defrosting pipes, starter
source, etc.
10. It is necessary for welding machine to undergo a periodic inspection every
6/12 months by an authorized officer according to ČSN 331500 and ČSN
050630– see Maintenance and service tests.
11. he welding machine is designed especially for industrial areas. In case of
using it in other areas there may exist special measures (see EN 60974-10).
12. It is necessary to protect the machine against:
a) Moisture and rain
b) Mechanical damage
c) Draft and possibly ventilation of neighboring machines
d) Excessive overloading – exceeding tech. parameters
e) Rough treatment
f) Chemically aggressive environments
ELECTROMAGNETIC COMPATIBILITY
he welding device is in terms of interference designed primarily for industrial
areas. It meets the requirements of EN 60974-10 class A and it isn’t designed
for using in residential areas, where the electrical energy is supplied by public
low-voltage power supply network. It can be here potential problems with
ensuring of electromagnetic compatibility in this areas, due to interference
caused by power lines as well as the radiated interference. During operation, the
device may be the source of interference.

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Caution
We warn users, that they are responsible for possible interference from
welding.
4. TECHNICAL DATA
echnical data
PEGAS 250
PEGAS 320
Method
MIG/MAG MMA MIG/MAG MMA
Mains voltage V/Hz 3 x 400/50-60 3 x 400/50-60
Fuse A 16 @ 16 @
Max. effective current I1eff A 12,9 13,1 12,9 12,8
he range of welding. current A 20-250 30-250 20-315 30-300
Open circuit voltage U20 V 54,4 63,1
Welding current (DZ=100%) I2 A 210 190 210 190
Welding current (DZ=60%) I2 A 250 230 250 230
Welding current (DZ=x%) I2 A 60%=250
50%=250
25%=315
20%=300
Protection IP 23S
Standards EN 60974-1; EN 60974-10 cl. A
Dimensions (w x d x h) mm 240 x 640 x 438
Weight kg 26,6
Wire feed speed m/min
1,0 - 15 1,0 - 15
Spool diameter mm 300 300
Spool Weight kg 15 15
Warming tests were made at ambient temperature 20÷25°C. he load factor for
ambient temperature of 40 ° C were determined by simulation.
S
he machine marked with this symbol can be used for welding in areas with
an increased risk of electric shock. he machine structure is designed so that,
in any case, even if the failure rectifier does not exceed the permitted peak value
of the open circuit voltage according to EN 60974-1, i.e., 113 V direct current or
68 V alternating.

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5. ACCESSORIES
INCLUDED IN DELIVERY
Des gnat on Descr pt on
5.0267-4 PEGAS 250 MIG SYN-4
5.0268-4 PEGAS 320 MIG SYN-4
ACCESSORIES ON REQUEST
Des gnat on Descr pt on
VM0321-3 Hose for gas connection PEGAS 3m
012.0252 Welding torch MB 24KD 4 m GRIP
VM0023 Welding cables PEGAS 2x 3m 35-50
NOTICE If you decide to use a different torch than the above, it is
necessary to choose one, according to your current range and load time of the
torch. ALFA IN a.s. is not liable for damage caused by overload welding torches.

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6. DESCRIPTION OF THE APPLIANCE
MAIN PARTS
Picture 1 – Main parts of the machine
A1 EURO connector of the torch
A2
Button gas
test
A3
Button Wire Feeding
A4
Instant JOB buttons
1
-
6
A5
Current encoder
A6
Control light Material thickness (mm)
A7
Control light Wire speed (m/min)
A8
Button for selecting the parameters to be displayed
A9
Control light Current (A)
A10
L
eft display
A11
R
ight display
A12
Control light of Voltage or Voltage Correction
A13
Button for selecting the parameters to
be displayed
A14
Control light of Wire Speed Correction
A15
Control light of Choke or Choke Correction

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A16
Encoder Voltage or Correction
A17 Control light two stroke – 2
A18
Control light
four stroke
–
4
A19
Button for selecting the parameters to
be displayed
A20 Quick connector (+)
A21
Quick connector
(
-
)
WIRE FEEDER
Picture 2 - Wire feeder
E1
Nut of pressure arm
E2
Pressure arm
E3 Inlet liner
E4
EURO connector
E5
Roll
CHOOSING THE FEEDING ROLL
In all machines (ALFA IN MIG / MAG) rolls with two grooves are used. hese
grooves are intended for two different wire diameters (e.g. 0,8 and 1,0 mm).
Rolls for wire feed must comply with the diameter and material of the welding
wire. Only this way a smooth wire feed can be achieved. Irregularities of the wire
feed leads to a poor quality of welding and deformation of the wire.
A Correct
B Wrong

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
 
ABC
Picture 3 - he influence of the roll groove on the welding wire
OVERVIEW OF ROLLS FOR WIRE FEED
ab
2 rolls 4 rolls
a = 22 mm
a = 10 mm
b = 30 mm
b = 30 mm
Groove type
Wire diameter
Item No
Steel
0,6
-
0,8
2187
5434
0,8
-
1,0
2188
5435
1,0
-
1,2
2189
5436
Aluminum
0,8
-
1,0
2270
5437
1,0-1,2 2269 5438
Flux core
0,8
-
1,0
2318
5439
1,0
-
1,2
2319
5440
1,2-1,4 2320 5441
ADJUSTING THE MACHINE FOR ANOTHER WIRE DIAMETER
In all machines ALFA IN MIG / MAG are used rolls with two grooves. hese
grooves are intended for two different wire diameters (e.g. 0,8 a 1,0 mm). Groove
can be replaced by removing the rolls and rotating them, or use a different roll
grooves with required dimensions.
1. Open the nut E1 to the right, pressure roll E2 will be opened upward
2. Unscrew the plastic locking element E5 and remove the roll
C Wrong