H&S AUTOSHOT HSG140 Manuale utente
Part # HSW-6214
Processes
MIG/MAG(GTAW) Arc Welding
Flux-Cored (FCAW) Arc Welding
115VAC @ 50/60Hz
.
HSG140
INVERTER MIG WELDING MACHINE
IMPORTANT: Read this Owner’s Manual Completely before attempting to use this
equipment. Save this manual and keep it handy for quick reference. Pay particular
attention to the safety instructions we have provided for your protection. Contact your
distributor if you do not fully understand this manual.
OPERATOR’S MANUAL
II
CONTENT
§1 SAFETY ................................................................................................................................1
§1.1 SIGNAL EXPLANATION........................................................................................................1
§1.2ARC WELDING DAMAGE.....................................................................................................1
§1.3 THE KNOWLEDGE OF ELECTRICAND MAGNETIC FIELDS.......................................................5
§2 OVERIVEW ...........................................................................................................................7
§2.1 BRIEF INTRODUCTION.......................................................................................................7
§2.2WORKING PRINCIPLE.........................................................................................................8
§2.3VOLT-AMPERE CHARACTERISTIC ........................................................................................8
§3 INSTALLATION AND ADJUSTMENT ................................................................................10
§3.1 PARAMETERS..................................................................................................................10
§3.2 DUTY CYCLE &OVER HEAT..............................................................................................10
§3.3 EQUIPMENT CONNECTION................................................................................................11
§4 OPERATION .......................................................................................................................12
§4.1 LAYOUT FOR THE FRONTAND REAR PANEL........................................................................12
§4.2WELDING OPERATION......................................................................................................13
§4.2.1 VOLTAGE SETTING....................................................................................................13
§4.2.2 WIRE SPEED SETTING...............................................................................................13
§4..3 WELDING PARAMETERS..................................................................................................13
§4.4 OPERATION ENVIRONMENT..............................................................................................13
§4.5 OPERATION NOTICES ......................................................................................................14
§5 MAINTENANCE & TROUBLESHOOTING ........................................................................15
§5.1 MAINTENANCE ................................................................................................................15
§5.2 TROUBLESHOOTING ........................................................................................................15
§5.3 MACHINE SPARE PARTS DRAWING.....................................................................................15
§5.4 MIG TORCH CONSUMABLE PARTS……………………………………………………………………………………………16
§5.5 MACHINE WIRING SCHEMATIC………………………………………………………………………………………………..17
1
§1 Safety
§1.1 Signal Explanation
The above signals mean warning! Notice! Running parts and getting an electric shock or
thermal parts will take damage for your body or others. The corresponding notices are as follows.
It is quite a safe operation after taking several necessary protection measures.
§1.2 Arc Welding Damage
The following signals and word explanations are to some damages for your body or others
happening on the welding operation. While seeing these, please remind of yourself or others to
be dangerous.
Only ones who are trained professionally can install, debug, operate, maintain and repair the
equipment.
During the operation, non-concerned people should be lift, especially for children.
After shut off the machine power, please maintain and examine the equipment according to §5
because of the DC voltage existing in the electrolytic capacitors.
ELECTRIC SHOCK CAN KILL.
Never touch electrical parts.
Wear dry, hole-free gloves and clothes to insulate yourself.
Insulate yourself from work and ground using dry insulation. Make certain the insulation is large
enough to cover your full area of physical contact with work and ground.
Take carefully when using the equipment in small place, falling-off and wet circumstance.
Never close the machine power before installation and adjustment.
Ensure to install the equipment correctly and ground the work or metal to be welded to a good
electrical (earth) ground according the operation manual.
The electrode and work (or ground) circuits are electrically ―hot‖ when the welder is on. Do not
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touch these ―hot‖ parts with your bare skin or wet clothing. Wear dry, hole-free gloves to insulate
hands.
In semiautomatic or automatic wire welding, the electrode, electrode reel, welding head, nozzle
or semiautomatic welding gun are also electrically ―hot‖.
Always be sure the work cable makes a good electrical connection with the metal being welded.
The connection should be as close as possible to the area being welded.
Maintain the electrode holder, work clamp, welding cable and welding machine in good, safe
operating condition. Replace damaged insulation.
Never dip the electrode in water for cooling.
Never simultaneously touch electrically ―hot‖ parts of electrode holders connected to two
welders because voltage between the two can be the total of the open circuit voltage of both
welders.
When working above the floor level, use a safety belt to protect yourself from a fall should you
get a shock.
FUMES AND GASES CAN BE DANGEROUS.
Welding may produce fumes and gases hazardous to health. Avoid breathing these fumes and
gases. When welding, keep your head out of the fume. Use enough ventilation and/or exhaust at
the arc to keep fumes and gases away from the breathing zone. When welding with electrodes
which require special ventilation such as stainless or hard facing or on lead or cadmium plated
steel and other metals or coatings which produce highly toxic fumes, keep exposure as low as
possible and below Threshold Limit Values using local exhaust or mechanical ventilation. In
confined spaces or in some circumstances, outdoors, a respirator may be required. Additional
precautions are also required when welding on galvanized steel.
Do not weld in locations near chlorinated hydrocarbon vapors coming from degreasing,
cleaning or spraying operations. The heat and rays of the arc can react with solvent vapors to
form phosgene, a highly toxic gas, and other irritating products.
Shielded gases used for arc welding can displace air and cause injury or death. Always use
enough ventilation, especially in confined areas, to insure breathing air is safe.
Read and understand the manufacturer’s instructions for this equipment and the consumables
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to be used, including the material safety data sheet and follow your employer’s safety practices.
ARC RAYS CAN BURN.
Use a shield with the proper filter and cover plates to protect your eyes from sparks and the
rays of the arc when welding or observing open arc welding.
Use suitable clothing made from durable flame-resistant material to protect your skin and that
of your helpers from the arc rays.
Protect other nearby personnel with suitable, non-flammable screening and /or warn them not
to watch the arc nor expose themselves to the arc rays or to hot spatter or metal.
SELF-PROTECTION
Keep all equipment safety guards, covers and devices in position and in good repair. Keep
hands, hair, clothing and tools away from V-belts, gears, fans and all other moving parts when
starting, operating or repairing equipment.
Do not put your hands near the engine fan. Do not attempt to override the governor or idler by
pushing on the throttle control rods while the engine is running.
DO NOT adds the fuel near an open flame welding arc or when the engine
is running. Stop the engine and allow it to cool before refueling to prevent spilled fuel from
vaporizing on contact with hot engine parts and igniting. Do not spill fuel when filling tank. If fuel
is spilled, wipe it up and do not start engine until fumes have been eliminated.
WELDING SPARKS can cause fire or explosion.
Remove fire hazards from the welding area. If this is not possible, cover them to prevent the
welding sparks from starting a fire. Remember that welding sparks and hot materials from
welding can easily go through small cracks and openings to adjacent areas. Avoid welding near
hydraulic lines. Have a fire extinguisher readily available.
Where compressed gases are to be used at the job site, special precautions should be used to
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prevent hazardous situation.
When not welding, make certain no part of the electrode circuit is touching the work or ground.
Accidental contact can cause overheating and create a fire hazard.
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 vapors from substances inside.
They can cause an explosion even though they have been ―cleaned‖.
Vent hollow castings or containers before heating, cutting or welding. They may explode.
Sparks and spatter are thrown from the welding arc. Wear oil free protective garments such as
leather gloves, heavy shirt, cuff less trousers, high shoes and a cap over your hair. Wear ear
plugs when welding out of position or in confined places. Always wear safety glasses with side
shields when in a welding area.
Connect the work cable to the work as close to the welding area as practical. Work cables
connected to the building framework or other locations away from the welding area increase the
possibility of the welding current passing through lifting chains, crane cables or other alternate
circuits. This can create fire hazards or overheat lifting chains or cables until they fail.
UNSECURED CYLINDERS may be dangerous.
Use only compressed gas cylinders containing the correct shielding gas and properly operating
regulators designed for the gas and cylinder pressure.
Always keep cylinders:
-Upright position securely chained to an undercarriage or fixed support.
-Away from areas where they may be struck or subjected to physical damage.
-A safe distance from welding or cutting operations and any other source of heat, sparks, or
flame.
Keep your head and face away from the cylinder valve outlet when opening.
Valve protection caps should always be in place and hand tight except when the cylinder is in
use or connected for use.
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§1.3 Knowledge of Electric and Magnetic Fields
Electric current flowing through any conductor causes localized Electric and Magnetic Fields
(EMF). The discussion on the effect of EMF is ongoing all the world. Up to now, no material
evidences show that EMF may have effects on health. However, the research on damage of EMF
is still ongoing. Before any conclusion, we should minimize exposure to EMF as few as possible.
In order to minimize EMF, we should use the following procedures:
Route the electrode and work cables together –Secure them with tape or sleeve.
All cables should be kept as far away from the operator as possible.
Never coil the power or earth cables around operator body.
Connect the work cable to the workpiece as close as possible to the area being welded.
The people with heart-pacemaker should be away from the welding area.
OVERVIEW
6
§2 Overview
§2.1 Brief Introduction
The HSW INVERTER arc welding machine adopts the latest pulse width modulation (PWM)
technology and insulated gate bipolar transistor (IGBT) power module, which can change work
frequency to medium frequency so as to replace the traditional hulking work frequency
transformer with the compact medium frequency transformer. This technology provides a
compact, lightweight, portable power supply with high output power and superior efficiency.
HSW-Series arc welding machines are designed to use active gas（Ar+O2、Ar+CO2and
inactive gas（Ar) for MIG/MAG welding or Flux-Cored wire for non-shield gas welding.
The HSW Series arc welding machine has automatic protection functions with intelligent to
over-voltage, over-current and over-heat sensing with auto-reset. If any one of the above
problems happens, the alarm lamp on the front panel will illuminate and output current will be
shut off automatically to protect itself and prolong the equipment using life.
HSW-SERIES Features:
1. Digital control system with infinitely adjustable (non-step) settings for power & wire speed
2. Electronic inverter power source provides high performance and efficiency
3. Waveform control provides stable welding arc on all materials and power settings
4. IGBT technology insures low power dissipation in compact package
5. Superior 40% duty cycle inverter design for professional welding.
The HSW-Series arc welding machine is suitable for all positions welding for various materials
including stainless steel, carbon steel, alloy steel, etc. common in the auto body repair, light
fabrication, pipe installment, petrochemical, architectural, general construction, farming and
restoration industries.
MAG--MetalActive Gas Welding (MixedArgon, CO2or O2)
MIG--Metal Insert Gas Welding (Argon or Helium Gas)
FLUX-CORED—Arc Welding (No-Gas)
OVERVIEW
7
§2.2 Working Principle
The working principle of HSW-SERIES arc welding machine is shown as the following figure.
single-phase 110 or 220V work frequency AC is rectified into DC（154V）, then is converted to
medium frequency AC (about 37KHz) by inverter device (IGBT), after reducing voltage by
medium transformer (the main transformer) and rectifying by medium frequency rectifier (fast
recovery diodes), and is outputted by inductance filtering. Meanwhile, the welding current
parameter can be adjusted infinitely to meet with the requirements of welding application.
§2.3 Volt-Ampere Characteristic
The inverter has an excellent volt-ampere characteristic, whose graph is shown as the
following figure. The relation between the rated loading voltage U2and welding current I2is as
follows: U2=14+0.05I2(V)
44
14
0600 Io（A）
Uo（V）
Working point
Volt-ampere characteristic The relation between the rated loading
voltage and welding current
OVERVIEW
8
§2.4Principles of welding
Indice
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