0463 418 001 Us
0463 418 001 Us
0463 418 001 Us
300iP
Welding power source TIG 300 A
Instruction manual
1 SAFETY ......................................................................................................... 4
1.1 Meaning of symbols ................................................................................. 4
1.2 Safety precautions ................................................................................... 4
1.3 User responsibility ................................................................................... 8
2 INTRODUCTION ............................................................................................ 11
2.1 Overview ................................................................................................... 11
2.2 Equipment ................................................................................................. 11
5 OPERATION .................................................................................................. 19
5.1 Overview ................................................................................................... 19
5.2 Connections and control devices ........................................................... 19
5.3 TIG welding ............................................................................................... 20
5.4 MMA welding............................................................................................. 20
5.5 Connecting welding and return cables .................................................. 20
5.6 Turning the power on/off ......................................................................... 20
5.7 Connect to cooler EC 1000 ...................................................................... 21
5.8 Fan control ................................................................................................ 21
5.9 Thermal protection ................................................................................... 21
5.10 Voltage reducing device (VRD) ............................................................... 22
5.11 Remote control ......................................................................................... 22
5.12 USB connection........................................................................................ 22
6 CONTROL PANEL......................................................................................... 23
6.1 ET 300iP .................................................................................................... 23
6.1.1 Navigation .............................................................................................. 24
6.2 TIG settings............................................................................................... 25
6.2.1 Hidden TIG functions.............................................................................. 26
6.2.2 Measured values .................................................................................... 26
6.3 TIG functions explanation ....................................................................... 26
6.3.1 Foot pedal functions explanation............................................................ 28
6.4 MMA settings ............................................................................................ 30
6.4.1 Hidden MMA functions ........................................................................... 30
6.4.2 Measured values .................................................................................... 26
6.5 MMA functions explanation..................................................................... 31
7 MAINTENANCE ............................................................................................. 32
7.1 Routine maintenance ............................................................................... 32
8 TROUBLESHOOTING ................................................................................... 36
9 ERROR CODES............................................................................................. 37
9.1 Error code descriptions ........................................................................... 37
1 SAFETY
1.1 Meaning of symbols
As used throughout this manual: Means Attention! Be Alert!
DANGER!
Means immediate hazards which, if not avoided, will result in immediate,
serious personal injury or loss of life.
WARNING!
Means potential hazards which could result in personal injury or loss of
life.
CAUTION!
Means hazards which could result in minor personal injury.
WARNING!
Before use, read and understand the instruction manual
and follow all labels, employer's safety practices and Safety
Data Sheets (SDSs).
1. Protect yourself and others from flying sparks and hot metal.
2. Move all combustible materials well away from the work area or cover the materials
with a protective non-flammable covering. Combustible materials include wood, cloth,
sawdust, liquid and gas fuels, solvents, paints, and coating paper, etc.
3. Hot sparks or hot metal can fall through cracks or crevices in floors or wall openings
and cause a hidden smoldering fire or fires on the floor below. Make certain that such
openings are protected from hot sparks and metal.
4. Do not weld, cut, or perform other hot work until the work piece has been completely
cleaned so that there are no substances on the work piece which might produce
flammable or toxic vapors. Do not perform hot work on closed containers, they may
explode.
5. Have fire extinguishing equipment handy for instant use, such as a garden hose,
water pail, sand bucket, or portable fire extinguisher. Be sure you are trained in its
use.
6. Do not use equipment beyond its ratings. For example, an overloaded welding cable
can overheat and create a fire hazard.
7. After completing work, inspect the work area to make sure there are no hot sparks or
hot metal that could cause a fire later. Use fire watchers when necessary.
ELECTRICAL SHOCK
Contact between live electrical parts and earth can cause severe injury
or death. DO NOT use AC welding current in damp areas, if movement
is confined, or if there is danger of falling. Therefore:
1. Be sure the power source frame (chassis) is connected to the earth system of the
input power.
2. Connect the workpiece to a good electrical earth.
3. Connect the work cable to the workpiece. A poor or missing connection can expose
you or others to a fatal shock.
4. Use well-maintained equipment. Replace worn or damaged cables.
5. Keep everything dry, including clothing, work area, cables, torch/electrode holder and
power source.
6. Make sure that all parts of your body are insulated from both the work piece and from
the ground.
7. Do not stand directly on metal or the ground while working in tight quarters or a damp
area; stand on dry boards or an insulating platform and wear rubber-soled shoes.
1. Keep your head out of the fumes. Do not breathe the fumes and gases.
2. Always provide adequate ventilation in the work area by natural or mechanical means.
Do not weld, cut or gouge on materials such as galvanized steel, stainless steel,
copper, zinc, lead beryllium or cadmium unless positive mechanical ventilation is
provided. Do not breathe in the fumes from these materials.
3. Do not operate near degreasing and spraying operations. The heat or arc can react
with chlorinated hydrocarbon vapors to form phosgene, a highly toxic gas, and other
irritant gases.
4. If you develop momentary eye, nose or throat irritation while operating, this is an
indication that the ventilation is not adequate. Stop work and take the necessary steps
to improve ventilation in the work area. Do not continue to operate if physical
discomfort persists.
5. Refer to ANSI/ASC Standard Z49.1 for specific ventilation recommendations.
6. WARNING: This product when used for welding or cutting, produces fumes or gases
that contain chemicals known to the State of California to cause birth defects and in
some cases cancer (California Health & Safety Code §25249.5 et seq.)
CYLINDER HANDLING
Cylinders, if mishandled, can rupture and violently release gas. A
sudden rupture of cylinder valve or relief device can injure or kill.
Therefore:
1. Locate cylinders away from heat, sparks and flames. Never strike an arc on a cylinder.
2. Use the proper gas for the process and use the proper pressure reducing regulator
designed to operate from the compressed gas cylinder. Do not use adapters. Maintain
hoses and fittings in good condition. Follow the manufacturer's operating instructions
for mounting a regulator to a compressed gas cylinder.
3. Always secure cylinders in an upright position, by chain or strap, to suitable hand
trucks, undercarriages, benches, wall, post or racks. Never secure cylinders to work
tables or fixtures where they may become part of an electrical circuit.
4. When not in use, keep cylinder valves closed. Have valve protection cap in place if
regulator is not connected. Secure and move cylinders by using suitable hand trucks.
MOVING PARTS
Moving parts, such as fans, rotors and belts can cause
injury. Therefore:
1. Keep all doors, panels, guards, and covers closed and securely in place.
2. Stop the engine or drive systems before installing or connecting a unit.
3. Have only qualified people remove covers for maintenance and troubleshooting as
necessary
4. To prevent accidental starting of equipment during service, disconnect negative (-)
battery cable from battery.
5. Keep hands, hair, loose clothing and tools away from moving parts.
6. Reinstall panels or covers and close doors when service is finished and before starting
engine.
WARNING!
FALLING EQUIPMENT CAN INJURE
• Only use lifting eye to lift unit. Do NOT use running gear, gas cylinders or
any other accessories.
• Use equipment of adequate capacity to lift and support unit.
• If using lift forks to move unit, be sure forks are long enough to extend
beyond opposite side of unit.
• Keep cables and cords away from moving vehicles when working from
an aerial location.
WARNING!
EQUIPMENT MAINTENANCE
Faulty or improperly maintained equipment can cause injury or death.
Therefore:
1. Always have qualified personnel perform the installation, troubleshooting
and maintenance work. Do not perform any electrical work unless you
are qualified to perform such work.
2. Before performing any maintenance work inside a power source,
disconnect the power source from the incoming electrical power.
3. Maintain cables, earthing wire, connections, power cord and power
supply in safe working order. Do not operate any equipment in faulty
condition.
4. Do not abuse any equipment or accessories. Keep equipment away from
heat sources such as furnaces, wet conditions such as water puddles, oil
or grease, corrosive atmospheres and inclement weather.
5. Keep all safety devices and cabinet covers in position and in good repair.
6. Use equipment only for its intended purpose. Do not modify it in any
manner.
CAUTION!
ADDITIONAL SAFETY INFORMATION
For more information on safe practices for electric arc welding and cutting
equipment, ask your supplier for a copy of “Precautions and Safe Practices
for Arc Welding, Cutting and Gouging.” Form 52-529.
The following publications are recommended to you:
1. ANSI/ASC Z49.1 - "Safety in Welding and Cutting"
2. AWS C5.5 - "Recommended Practices for Gas Tungsten Arc Welding"
3. AWS C5.6 - "Recommended Practices for Gas Metal Arc Welding"
4. AWS SP - "Safe Practices" - Reprint, Welding Handbook
5. ANSI/AWS F4.1 - "Recommended Safe Practices for Welding and
Cutting of Containers That Have Held Hazardous Substances"
6. OSHA 29 CFR 1910 - "Safety and Health Standards"
7. CSA W117.2 - "Code for Safety in Welding and Cutting"
8. NFPA Standard 51B, “Fire Prevention During Welding, Cutting, and
Other Hot Work"
9. CGA Standard P-1, “Precautions for Safe Handling of Compressed
Gases in Cylinders”
1 ANSI Z87.1, "Occupational and Educational Personal Eye and Face
0. Protection Devices"
WARNING!
Arc welding and cutting may cause injury to yourself and others. Take
precautions when welding and cutting.
FIRE HAZARD
• Sparks (spatter) can cause a fire. Make sure there are no inflammable
materials nearby.
• Do not use on closed containers.
MALFUNCTION - Call for expert assistance in the event of malfunction.
PROTECT YOURSELF AND OTHERS!
WARNING!
Do not use the power source for thawing frozen pipes.
CAUTION!
This product is solely intended for arc welding.
2 INTRODUCTION
2.1 Overview
The ET 300iP is a welding power source intended for TIG welding and for welding with
covered electrodes (MMA).
ESAB accessories for the product can be found in the "ACCESSORIES" chapter of
this manual.
2.2 Equipment
The power source is supplied with:
• Instruction manual
• 9.8 ft (3 m) mains cable (without plug)
• 2 × OKC 5O male contact
• shoulder strap
3 TECHNICAL DATA
4 INSTALLATION
The installation must be carried out by a professional.
CAUTION!
This product is intended for industrial use. In a domestic environment, this
product may cause radio interference. It is the user's responsibility to take
adequate precautions.
4.1 Location
Position the power source so that its cooling air inlets and outlets are not obstructed.
WARNING!
Secure the equipment - particularly if
the ground is uneven or sloping.
The power source will automatically adjust to the supplied input voltage. Make sure that it is
protected by the correct fuse rating. A protective ground connection must be made, in
accordance with regulations.
1-phase
WARNING!
In 1-phase operation the terminal L3 is powered, even though not connected.
Make sure to keep terminal L3 disconnected.
NOTE!
Different variants of ET 300i and ET 300iP are certified for different mains
voltages. Always refer to the rating plate for the specification of the power source
in use.
NOTE!
The power cable areas and fuse sizes as shown above are in accordance with
Swedish regulations. Use the power source in accordance with the relevant
national regulations.
5 OPERATION
5.1 Overview
General safety regulations for handling the equipment can be found in the chapter
"Safety." Read it before you start using the equipment.
NOTE!
When moving the equipment, use the handle. Never pull the cables.
WARNING!
Electric shock! Do not touch the workpiece or the welding head during operation!
NOTE!
When connecting a gas hose to the gas supply input, it must be secured using a
hose clamp.
NOTE!
Always use the cover when the USB connection is not in use.
CAUTION!
Do not turn off the power source during welding (with load).
NOTE!
Take care so that the interface cable does not get squeezed between the power
source and the cooling unit!
NOTE!
Power is supplied to the cooling unit from the welding power source via the
connection cable (for more information, see the cooling unit instruction manual).
6 CONTROL PANEL
6.1 ET 300iP
6.1.1 Navigation
Parameter selection
By pressing the button (19), different values can be shown and changed. Use the knob (7) to
change the values. Sequence:
1. Set current value.
2. Measured current value.
3. Measured voltage value.
Set parameter
The set indicator (4) will be lit when a displayed value can be changed. It cannot be changed
from the panel when a remote control is activated. Trying to change a value while in
measured value mode results in automatically switching to set current value mode.
The set indicator (4) is off when measured values are shown.
Weld parameters
The weld parameters are stored for pulse and no pulse respectively. The values are changed
when changing between pulse and no pulse.
2-stroke* ON/OFF ON X X
Measured current
Measured value in the display for welding current A is arithmetic average value.
Measured voltage
Measured value in the display for arc voltage V is arithmetic average value.
LiftArc™
The LiftArc™ function initiates the arc when the tungsten electrode is brought
into contact with the workpiece, the trigger switch is pressed, and the tungsten
electrode is lifted away from the workpiece. In order to minimize the risk of
tungsten contaminations, the start current is very low and will slope up to the set
current (controlled by the slope up function).
2-stroke
In 2-stroke mode, press the TIG torch trigger switch (1) to start the shielding gas
flow and initiate the arc. The current slopes up to the set current value. Release
the trigger switch (2) to start to slope down the current and terminate the arc.
The shielding gas will continue to flow in order to protect the weld and the
tungsten electrode.
4-stroke
In 4-stroke mode, press the TIG torch trigger switch (1) to start shielding gas
flow and initiate the arc at a pilot level. Release the trigger switch (2) to slope up
the current to the set current value. To stop the welding, press the trigger switch
again (3). The current will slope down to the pilot level again. Release the trigger
switch (4) to terminate the arc. The shielding gas will continue to flow in order to
protect the weld and the tungsten electrode.
Slope up
The slope up function is used to control the time of the current increase in the
weld initiation process to avoid any possible damage to the tungsten electrode.
Slope down
The slope down function is used to control the time of the current decrease in
the weld termination process to avoid any pipes and/or cracks.
Pulse settings
In order to set a pulsed current, four parameters are required: pulse current,
background current, pulse balance and pulse frequency.
Pulse current
The higher of the two current values when using a pulsed current.
Pulse balance
Pulse balance is the ratio between pulse current and background current in a
pulse cycle. In order to control the energy of the arc and the size of the weld
pool, pulse balance is adjustable by setting the percentage of the pulse current
in a pulse cycle.
For example: If the pulse balance is set to 50%, the time of the pulse current and
the background current will be distributed equally in the pulse cycle. If the pulse
balance is set to 90%, the time of the pulse current will be 90% of the pulse
cycle and the background current will only be 10%.
Pulse frequency
The amount of pulse cycles in a time period. The higher the frequency, the more
pulse cycles per time period. When the pulse frequency is set low, the weld pool
will have time to partially solidify between each pulse. If the frequency is set
high, a more focused arc can be obtained.
Foot pedal
Press down the foot pedal (1) to start the shielding gas flow and initiate the arc. The current
slopes up to the set remote min current. Use the foot pedal to adjust the current between the
remote min current and the set current value. Release the foot pedal to start to slope down
the current and to terminate the arc. The shielding gas will continue to flow in order to protect
the weld and the tungsten electrode.
Measured current
Measured value in the display for welding current A is arithmetic average value.
Measured voltage
Measured value in the display for arc voltage V is arithmetic average value.
Hot start
The hot start function temporarily increases the current in the beginning of the
weld, thus reducing the risk of lack of fusion in the starting point.
Hot start only applies to MMA welding.
7 MAINTENANCE
WARNING!
Disconnect power before performing maintenance.
CAUTION!
Only persons with the appropriate electrical knowledge (authorized personnel)
may remove safety plates.
CAUTION!
The product is covered by a manufacturer’s warranty. Any attempt to carry out
repair work by non-authorized service centers will invalidate the warranty.
NOTE!
Regular maintenance is important for safe and reliable operation.
NOTE!
Perform maintenance more often during severe dusty conditions.
Clean inside
equipment. Use dry
compressed air with
reduced pressure.
CAUTION!
Make sure that the cleaning procedure is done in a suitable prepared workspace.
CAUTION!
During cleaning, always wear the recommended personal protective equipment,
such as earplugs, safety glasses, masks, gloves and safety shoes.
3. Clean the right side of the power source using low-pressure dry compressed air.
NOTE!
Because the power source contains one “dirty” side (the right side) and one
“clean” side (the left side), it is important not to remove the left side panel
before cleaning the right side of the power source.
4. Remove the four screws holding the left side panel (L) and remove the panel.
5. Clean the left side of the power source using low-pressure dry compressed air.
6. Make sure that no dust remains on any part of the power source.
7. After cleaning the power source, reattach the power source panels in the reverse
order.
NOTE!
When reattaching the right side panel, make sure that the IP shield on the
inside of the panel is in the correct position. The IP shield must be angled
at about 90° into the power source, so that it is positioned between the
welding outlet connector and the transformer outlets.
8 TROUBLESHOOTING
Perform these checks and inspections before contacting an authorized service technician.
Type of fault Corrective action
MMA welding problems • Check that the welding and return cables are not damaged
and that they are correctly connected to the power source.
• Make sure that the return clamp has proper contact with
the workpiece.
• Check that the correct electrodes and polarity are being
used. For polarity, check electrode packaging.
• Check that the correct current value is set.
• Adjust Arc Force and Hot start.
TIG welding problems • Check that the welding and return cables are not damaged
and that they are correctly connected to the power source.
• Make sure that the return clamp has proper contact with
the workpiece.
• Make sure that the TIG torch lead is connected to the
negative welding terminal.
• Make sure that the correct shielding gas, gas flow, welding
current, filler rod placement, electrode diameter and
welding mode on power source is used.
• Make sure that the gas valve on the TIG torch is on.
No arc • Check that the display is on to verify that the power source
has power.
• Check that the setting panel is displaying correct values.
• Check that the electrical power supply switch is turned on.
• Check that the mains, welding, and return cables are
correctly connected.
• Check the electrical power supply fuses.
Welding current is • Check whether the overheating light (thermal protection)
interrupted during welding on the setting panel is on.
• Continue with fault type "No Arc".
Thermal protection trips • Make sure that the recommended duty cycle for the weld
frequently current has not been exceeded.
See the “Duty cycle” section in the TECHNICAL DATA
chapter.
• Make sure that the air inlets or outlets are not clogged.
• Clean the inside of the machine using routine maintenance
methods.
• Check and clean the cooler.
The maximum current • Check that the power source is connected to 3-phase
setting is limited to 200 A electrical power supply.
• Check the electrical power supply fuses.
9 ERROR CODES
Error codes indicate that a fault has occurred in the equipment. Errors are indicated by the
text "Err" followed by the error code number shown in the display.
If more than one error was detected, only the code for the last occurring error is displayed.
The ET 300i and ET 300iP are designed and tested in accordance with international and
European standards IEC/EN 60974-1, IEC/EN 60974-3 and IEC/EN 60974-10, Canadian
standards CAN/CSA-E60974-1 and US standards ANSI/IEC 60974-1. On completion of
service or repair work, it is the responsibility of the person(s) performing the work to ensure
that the product still complies with the requirements of the above standards.
Spare parts and wear parts can be ordered through your nearest ESAB dealer, see the back
cover of this document. When ordering, please state product type, serial number, designation
and spare part number in accordance with the spare parts list. This facilitates dispatch and
ensures correct delivery.
DIAGRAM
ORDERING NUMBERS
ACCESSORIES
0700 300 538 TIG torch TXH™ 151, 13 ft (4 m)
0700 300 544 TIG torch TXH™ 151, 26 ft (8 m)
0700 300 552 TIG torch TXH™ 201, 13 ft (4 m)
0700 300 555 TIG torch TXH™ 201, 26 ft (8 m)
0700 300 855 TIG torch TXH™ 252w, 13 ft (4 m)
0700 300 856 TIG torch TXH™ 252w, 26 ft (8 m)
0700 300 565 TIG torch TXH™ 401w, 13 ft (4 m)
0700 300 567 TIG torch TXH™ 401w, 26 ft (8 m)
0445 045 880 EC 1000 Cooler
0700 006 903 Return cable kit 3 meter, incl. clamp and
OKC 50 connector
0700 006 889 Return cable kit 5 meter, incl. clamp and
OKC 50 connector
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