Uni-Mig ARC 170DC User manual

INSTRUCTION MANUAL
ARC 170DC
DC TIG & ARC Inverter Welder (240V)
10-170A
W164
Page 1
Instruction Manual for ARC 170DC (W164)
15/12/2014

Machine Model
Description Part Number
ARC - DC/MMA/TIG KUMJR140 / 170
CONTENTS PAGE No:
Safety 3
General Description 4
Curcuit Diagram 5
Main Parameter 6
Pre-Cautions 7
Operation 8
Maintenance 10
Trouble Shooting 12
UNIMIG pursue a policy of continuous research and development, and therefore
reserve the right to change the specifications, or design, without prior notice. *3 year warranty power source.
DECLARATION OF CONFORMITY
Hereby we declare that these machines are produced based on relative
Chinese and International standards and they conform to the international
safety standard IEC974. The design and technology adopt
ed in these machines are under paten protection
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.
Although carefully checked,
there may still be some inaccuracies in this manual,
This instruction manual is issued on 4th February 2009.
YEARS Warranty*
3
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Instruction Manual for ARC 170DC (W164)
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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 ARC 170DC (W164)
15/12/2014

This welding machine is manufactured with advanced inverter technology.
The features of ARC 140/170 series are:
Efficiency, energy saving, portability, excellent stable arc characteristics, relatively low
no-load voltage,
compensation of ARC force and LIFT ARC for DC TIG welding.
• Hot Start
• Anti Stick
• Arc Force
• MMA (Stick electrode) (DC+ / DC-)
• DC TIG Welding
• TIG Lift ARC ignition
• Thermal overload protection
• Generator compatible
• Tolerent to variable supply power
Note:
Minimum Motor Generator Power Suggested:-
140 DC - 8KVA
170 DC - 9KVA
GENERAL DESCRIPTION & SAFEGUARDS
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Instruction Manual for ARC 170DC (W164)
15/12/2014

CIRCUIT DIAGRAM
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Instruction Manual for ARC 170DC (W164)
15/12/2014

Machine Model
Description Part Number
Plasma Cut 40 KUMJR140 KUMJR170
MAIN PARAMETER
Tecnical Specification
Part Number KUMJR140
Rated Input Voltage voltage 240 1 Phase
Rated Input Power (KVA) 6.2
Ieff (AMPS) 14.2A
Rated Output 140A/25.6V
Welding Current Range 10~140A
No-Load Voltage (V) 80
Duty Cycle 40°C 30%@140Amps MMA
100%@77Amps MMA
30%@140Amps TIG DC
100%@100Amps TIG DC
Power Factor 0.70
Protection Class IP21S
Insulation Class F
Weight (Kgs) 4.9 Kgs
DIMENSIONS (mm) 290 x 115 x 200
KUMJR170
240V 1Phase
7.7
15A
170A/26.8V
10~170A
80
25%@170Amps MMA
100%@85Amps MMA
35%@170Amps TIG DC
100%@100Amps TIG DC
0.70
IP21S
F
5.2
320 x 120 x 210mm
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Instruction Manual for ARC 170DC (W164)
15/12/2014

PRE-CAUTIONS
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.
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 Overload
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 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 ARC 170DC (W164)
15/12/2014

OPERATION(140DC Shown)
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, IMAX and IEFF.
2. 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.
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2
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Instruction Manual for ARC 170DC (W164)
15/12/2014

OPERATION
For DC TIG welding the TIG torch should be connected to the negative socket, and the
workpeice should be connected to the positive socket.
Please note that the use of welding leads over 5 metres in length will require increasing
the diameter of welding cable used in order to maintain and improve the performance of
voltage output.
3. Power Supply Switch
When the power supply switch is on, the built-in fan works and current is supplied to
the output sockets.
4. Welding Current Output Setting
According to practical demand, set the parameters of current output by the
operation of “welding current knob”.
Generally, the required output of welding current output listed as following:
Ф2.5mm: 70-100A; Ф3.2mm: 110-160A; Ф4.0mm: 170-220A;
5. Selection Switch MMA/TIG
Select MMA or TIG welding with lift arc ignition
6. Thermal Overload Pilot Lamp
If the pilot lamp is on, it indicates that the thermal overload protection has operated,
which possibly is the consequence of duty cycle over-loading. This welding machine
automatically restarts when the temperature inside the machine drops to required
temperature. When the pilot light turns off welding can recommence.
Operatable duty cycle
This welding machine should be operated according to the data plate located on the
base of the machine. A sudden halt in welding may indicate that the thermal overload
has operated. If this should occur and the thermal overload pilot light is on,
The machine should not be turned off as the built-in fan will work to bring down the
temperature inside the welding machine.
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Instruction Manual for ARC 170DC (W164)
15/12/2014

MAINTENANCE
TROUBLESHOOTING
Caution:
Only qualified technicians are authorized to undertake the repair of this welding equip-
ment. For your safety and to avoid Electrical Shock, please observe all safety notes
and precautions detailed in this manual.
WARRANTY
• 3 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.
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.
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Instruction Manual for ARC 170DC (W164)
15/12/2014