Uni-Mig KUMJR165 User manual

INSTRUCTION MANUAL
MIG-TIG-MMA 250 INVERTER
Multi-Function Welder (240V)
30-250A
W179
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Instruction Manual for MIG-TIG-MMA 250 (W179)
15/12/2014

Machine Model
Description Part Number
MIG/MM/TIG Inverter KUMJR165 / 190 / 220 / 250
CONTENTS PAGE No:
Safety 3
Machine Features 4
Circuit Diagram 5
Panel Structure 7
Main Parameter. 8
Installation & Operation 10
Caution 13
. Maintenance 14
Troubleshooting 14
Machine Model
This welding equipment for industrial and professional use
conforms to IEC 60974 International Safety Standard.
We hereby state that we provide one year of guarantee for this
welding Power Source from the date of purchase.
Refer to Unimig for further details.
Please read and understand this instruction manual carefully before
the installation and operation of this equipment.
The contents of this manual may be revised without prior notice
and without obligation.
This instruction manual is issued on 1st April 2008.
UNIMIG pursue a policy of continuous research and development, and therefore
reserve the right to change the specifications, or design, without prior notice. *2 year warranty power source.
YEARS Warranty*
2
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Instruction Manual for MIG-TIG-MMA 250 (W179)
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•
Do not switch the function modes while the machine is operating.
Switching of the function modes during welding can damage the machine.
Damage caused in this manner will not be covered under warranty.
•
Disconnect the electrode-holder cable from the machine before switching on the
machine, to avoid arcing should the electrode be in contact with the work piece.
•
A safety switch is necessary to prevent the equipment from electric leakage.
•
Welding tools and accessories should be of high quality and in good working order.
•
Operators should be trained and or qualified. Electric shock: It can kill.
•
Connect the primary input cable according to Australian standard regulation.
•
Avoid all contact with live electrical parts of the welding circuit, electrodes and wires with
bare hands. The operator must wear dry welding gloves while he/she performs the
welding task.
•
The operator should keep the work piece insulated from
himself/herself. Smoke and gas generated whilst welding
or cutting can be harmful to people’s health.
•
Avoid breathing the smoke and gas generated whilst
welding or cutting. Keep the working area well ventilated.
•
Arc rays are harmful to people’s eyes and skin. Always
wear a welding helmet and suitable protective
clothing including welding gloves whilst the welding
operation is performed.
•
Measures should be taken to protect people in or near
the surrounding working area, from all hazards
associated with welding.
Fire hazard
•
The welding sparks may cause fire, therfore remove
flammable material away from the working area.
•
Have a fire extinguisher nearby, and have a trained
person ready to use it.
Noise: possibly harmful to people’s hearing.
•
Noise is generated while welding/cutting, wear approved
hearing protection when noise levels are high.
Machine fault:
•
Consult this instruction manual.
•
Contact your local dealer or supplier for further advice.
SAFETY
Welding and cutting equipment can be dangerous to both the operator and people in or near the
surrounding working area, if the equipment is not correctly operated. Equipment must only be
used under the strict and comprehensive observance of all relevant safety regulations. Please
read and understand this instruction manual carefully before the installation and use/operation
of this equipment.
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*** CAUTION ***
Do not heat, cut or weld tanks, drums or containers
until the proper steps have been taken to insure that
such procedures will not cause flammable or toxic
vapours from substance inside. These can cause
an explosion even though the vessel has been
“cleaned”.Vent hollow castings or containers before
heating, cutting or welding. They may explode.
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Instruction Manual for MIG-TIG-MMA 250 (W179)
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• Latest IGBT inverter technology
• MIG/MAG with gasless wire function
• MMA (Stick electrode) (DC+ / DC-) function
• Industrial application
• High strength metal case construction
• Internal gear drive wire feeder for 5Kg & 15kg spool
• Euro style MIG torch connection
• IP21S rating for environmental / safety protection
• Stepless voltage and wire feed control
• Scratch start DC TIG welding
• Excellent arc stability for MIG / MMA / TIG welding
• Light weight and portable
• Wire inch and burn back functions
MACHINE FEATURES
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Instruction Manual for MIG-TIG-MMA 250 (W179)
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CIRCUIT DIAGRAM
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Instruction Manual for MIG-TIG-MMA 250 (W179)
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Machine Model Description Part Number
MIG/MMA/TIG Inverter KUMJR165 KUMJR190
Tecnical Specification
PRIMARY INPUT VOLTAGE 240V 1 Phase 240V 1 Phase WELDING CURRENT MIG 30-160Amps 30-190 Amps WELDING CURRENT MMA 10-140 Amps 10-160 Amps duty cycle 40°C MIG welding 35% @ 160A / 100% @ 95A 35% @ 175A / 100% @ 103A MMA welding 35% @ 140A / 100% @ 83A 35% @ 160A / 100% @ 95A WELDING VOLTAGE RANGE DC 15.5-22 Volts 15.5-23 Volts WIRE SIZE (mm) 0.6 – 0.8mm Ferrous 0.6 – 0.9mm Ferrous
0.9 – 1.0mm Aluminium 0.9 – 1.0mm Aluminium 0.6 – 0.8mm Stainless Steel 0.6 – 0.9mm Stainless Steel 0.9 – 1.2mm Flux cored 0.9 – 1.2mm Flux cored
DIMENSIONS (mm) 480 × 230 ×360mm 480 × 230 × 360mm WEIGHT (Kgs) 17 Kgs 19 Kgs
MAIN PARAMETER 165/190
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Instruction Manual for MIG-TIG-MMA 250 (W179)
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Machine Model Description Part Number
MIG/MMA/TIG Inverter KUMJR220 KUMJR250
Tecnical Specification
PRIMARY INPUT VOLTAGE 240V 1 Phase 240V 1 Phase WELDING CURRENT MIG 30-220 Amps 30-250 Amps WELDING CURRENT MMA 10-200 Amps 10-250 Amps DUTY CYCLE 40°C MIG WELDING 40% @ 220A / 100% @ 139A 35% @ 250A / 100% @ 148A
MMA WELDING 40% @ 200A / 100% @125A 35% @ 224A / 100% @ 137A WELDING VOLTAGE RANGE DC 15.5-25 Volts 15.5-26.5 Volts WIRE SIZE (mm) 0.6 – 1.2mm Ferrous 0.6 – 1.2mm Ferrous
0.9 – 1.2mm Aluminium 0.9 – 1.2mm Aluminium 0.8 – 1.0mm Stainless Steel 0.8 – 1.0mm Stainless Steel 0.9 – 1.2mm Flux cored 0.9 – 1.2mm Flux cored
DIMENSIONS (mm) 580 × 230 × 450mm 580 × 230 × 450mm WEIGHT (Kgs) 23 Kgs 24 Kgs
MAIN PARAMETER 220/250
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Instruction Manual for MIG-TIG-MMA 250 (W179)
15/12/2014

INSTALLATION & OPERATION
Note: ·Please install the machine strictly according to the following steps.
·The protection class of this machine is IP21S, so avoid using it in rain.
1. Connection of Input Cables
Primary input cable is supplied with this welding equipment. Connect the primary input
cable with power supply of required input voltage. Refer to data plate on machine for
Input voltage, Maximum Input Current (IMAX) and Effective input Current (IEFF).
Installation of MMA welding
1.Turn the power source on and select stick function through Stick/MIG selector
(See Panel Structure Diagram Number 7)
2. Set the welding current in relation to the electrode to be welded.
(See Panel Structure Diagram Number 4)
Generally, the required welding current is listed as follows:
Ф2.5mm: 70-100A; Ф3.2mm: 110-160A; Ф4.0mm: 170-220A;
3. Connection of Output Cables
Two sockets are available on this welding machine. For MMA welding the electrode
holder should generally be connected to the positive socket, while the work piece
should be connected to the negative socket. However the polarity can be reversed and
careful attention should be paid to the polarity recommended by the electrode
manufacturer. (See Panel Structure Diagram Number 8&9.)
Installation sketch map
WARNING!
Disconnect the fast plug on the
wire feeder from the output socket’s
“GAS” “NO-GAS” on the clapboard.
(See Panel Structure Diagram Number 15&16.)
If cable is not disconnected welding
voltage is present at the MIG torch and can
cause arcing or flash.
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Instruction Manual for MIG-TIG-MMA 250 (W179)
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INSTALLATION & OPERATION
Installation of gas shielded arc welding
(1) Turn the power source on and select the MIG function through the STICK/MIG
selector. (See Panel Structure Diagram Number 7)
(2) Plug the welding torch into the output socket “10” on the front panel, (See Panel
Structure Diagram Number 10) and tighten it.
(3) Insert the earth cable plug into the negative socket “8” on the Panel Structure
Diagram, and tighten it clockwise.
(4) Insert the fast plug on the wire feeder into the output socket “GAS” on the
clapboard, and tighten it clockwise. (See Clapboard Structure Diagram Number 15)
(5) Remove the right side cover of the unit and push the wire spool onto the spindle.
Make free the end of the wire and cut it smoothly. Unlock the pressure arm and align the
wire into the groove of the drive roll putting a short part of the wire into the torch recep-
tacle. Check that the drive roll and contact tip in MIG torch being used complies with the
wire diameter, replace if necessary. Lock the pressure arm and check that the bearing
roll presses the wire exactly into the groove.
(6) Press selector switch on for “wire inching” (See Panel Structure Diagram Number 3)
Press and hold until wire is visible at end of torch.
(7) Tightly connect the gas hose, which comes from the back of the machine to the
brass nipple of supplied regulator, adjust argon regulator to deliver the required litres
per minute.
NOTE. reffer to instruction manual of argon regulator for proper use.
(8) Adjust the welding voltage adjustment knob and wire feeding speed adjustment
knob according to practical needs to get the desired welding voltage and welding
current. (See Panel Structure Diagram Number 5&6)
(9) Press the welding torch switch, and welding can be carried out.
(10) Adjust the burnback time potentiometer on the clapboard to get the desired length
of welding wire stretching into the contact tip after welding.
(See Clapboard Structure Diagram Number 14)
Installation sketch map
WARNING!
Disconnect the Electrode Holder cable
from the machine before using MIG
function. If cable is not disconnected
welding voltage is present and can cause
arcing or flash.
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Instruction Manual for MIG-TIG-MMA 250 (W179)
15/12/2014

INSTALLATION & OPERATION
Installation of self shielded arc welding (No Gas)
(1) Turn the power source on and select the MIG function through the STICK/MIG
selector. (See Panel Structure Diagram Number 7)
(2) Plug the welding torch into the output socket “10” on the front panel, (See Panel
Structure Diagram Number 10) and tighten it.
(3) Insert the earth cable plug into the positive socket “9” on the Panel Structure
Diagram, and tighten it clockwise.
(4) Insert the fast plug on the wire feeder into the output socket “NO GAS” on the
clapboard, and tighten it clockwise. (See Clapboard Structure Diagram Number 16)
(5) Remove the right side cover of the unit and push the wire spool onto the spindle.
Make free the end of the wire and cut it smoothly. Unlock the pressure arm and align
the wire into the groove of the drive roll putting a short part of the wire into the torch
receptacle. Check that the drive roll and contact tip being used complies with the wire
diameter, replace if necessary. Lock the pressure arm and check that the bearing roll
presses the wire exactly into the groove.
(5a) Please note that a knurled drive roller sholud be fitted when using self shielded
wire.
(6) Press selector switch on for “wire inching” (See Panel Structure Diagram Number 3)
Press and hold until wire is visible at end of torch.
(7) Adjust the welding voltage adjustment knob and wire feeding speed adjustment
knob according to practical needs to get the desired welding voltage and welding
current. (See Panel Structure Diagram Number 5&6)
(8) Press the welding torch switch, and welding can be carried out.
(9) Adjust the burnback time potentiometer on the clapboard to get the desired length of
welding wire stretching into the contact tip after welding.
(See Clapboard Structure Diagram Number 14)
Installation sketch map
WARNING!
Disconnect the Electrode Holder cable
from the machine before using MIG
function. If cable is not disconnected
welding voltage is present and can cause
arcing or flash.
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Instruction Manual for MIG-TIG-MMA 250 (W179)
15/12/2014

CAUTION
1. Working Environment.
1.1 The environment in which this welding equipment is installed must be
free of grinding dust, corrosive chemicals, flammable gas or materials etc, and at
no more than maximum of 80% humidity.
1.2 When using the machine outdoors protect the machine from direct sun light, rain
water and snow etc; the temperature of working environment should be
maintained within -10°C to +40°C.
1.3 Keep this equipment 30cm distant from the wall for ventilation.
1.4 Ensure the working environment is well ventilated.
2. Safety Tips.
2.1 Ventilation
This equipment is small-sized, compact in structure, and of excellent performance
in amperage output. The fan is used to dissipate heat generated by this
equipment during the welding operation.
Important:
Maintain good ventilation of the louvers of this equipment. The minimum distance
between this equipment and any other objects in or near the working area should
be 30 cm. Good ventilation is of critical importance for the normal performance
and service life of this equipment.
2.2 Thermal Overload protection.
Should the machine be used to an excessive level, or in high temperature
environment, poorly ventilated area or if the fan malfunctions the Thermal Over
load Switch will be activated and the machine will cease to operate. Under this
circumstance, leave the machine switched on to keep the built-in fan working to
bring down the temperature inside the equipment. The machine will be ready for
use again when the internal temperature reaches safe level.
2.3 Over-Voltage Supply
Regarding the power supply voltage range of the machine, please refer to “Main
parameter” table. This equipment is of automatic voltage compensation, which
enables the maintaining of the voltage range within the given range. In case that
the voltage of input power supply amperage exceeds the stipulated value, it is
possible to cause damage to the components of this equipment. Please ensure
your primary power supply is correct.
2.4 Do not come into contact with the output terminals while the machine is in
operation. An electric shock may possibly occur.
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Instruction Manual for MIG-TIG-MMA 250 (W179)
15/12/2014

MAINTENANCE
WARNING:
Exposure to extremely dusty, damp, or corrosive air is damaging to the welding
machine. In order to prevent any possible failure or fault of this welding
equipment, clean the dust at regular intervals with clean and dry compressed air
of required pressure.
Please note that: lack of maintenance can result in the cancellation of the
guarantee; the guarantee of this welding equipment will be void if the machine
has been modified, attempt to take apart the machine or open the factory-made
sealing of the machine without the consent of an authorized representative of the
manufacturer.
10. TROUBLESHOOTING
Caution:
Only qualified technicians are authorized to undertake the repair of this welding
equipment. For your safety and to avoid Electrical Shock, please observe all safety
notes and precautions detailed in this manual.
UNIMIG pursue a policy of continuous research and development, and therefore
reserve the right to change the specifications, or design, without prior notice. *2 year warranty power source.
Page 12
Instruction Manual for MIG-TIG-MMA 250 (W179)
15/12/2014

MACHINE OPTIONS
TROLLEY OPTION MIG 165 / 190
PART NO: UMJRTROLLEY2
TIG TORCH OPTION
PART NO: 17V-4MCP25
TROLLEY OPTION MIG 220 / 250
PART NO: UMJRTROLLEY
TIG TORCH OPTION
PART NO: 26V-4MCP50
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Instruction Manual for MIG-TIG-MMA 250 (W179)
15/12/2014

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Instruction Manual for MIG-TIG-MMA 250 (W179)
15/12/2014

PANEL STRUCTURE
Front panel structure
1. Power LED
2. Overheating LED
3. Wire inching button
4. Current adjustment knob (in MMA welding)
5. Voltage adjustment knob (MIG/MAG)
6. Wire Feed adjustment knob (MIG/MAG)
7. STICK/MIG selector switch
8. “-” output terminal “1”
9. “+” output terminal “1”
10. Euro welding torch connector (MIG/MAG)
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Instruction Manual for MIG-TIG-MMA 250 (W179)
15/12/2014

WARRANTY
• 2 Years from date of purchase.
• Welding Guns of Australia Pty Ltd warranties all goods as specified by the
manufacturer of those goods. This Warranty does not cover freight or goods that have
been interfered with. All goods in question must be repaired by an authorised repair agent
as appointed by this company. Warranty does not cover abuse, mis-use, accident, theft,
general wear and tear. New product will not be supplied until
Welding Guns of Australia Pty Ltd has inspected product returned for warranty
and agree’s to replace product. Product will only be replaced if repair is impossible.
If in doubt please ring.
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Instruction Manual for MIG-TIG-MMA 250 (W179)
15/12/2014