ESAB Aristo Mig 5000i User manual

Aristo®
Instruction manual
0459 293 787 GB 20181030 Valid for: serial no. 834-xxx-xxxx
Mig5000i,
Mig5000iWeldCloud™
460 V

TABLE OF CONTENTS
0459 293 787 © ESAB AB 2018
1SAFETY ....................................................................................................... 5
1.1 Meaning of symbols ............................................................................... 5
1.2 Safety precautions ................................................................................. 5
1.3 User responsibility ................................................................................. 9
2INTRODUCTION.......................................................................................... 13
2.1 Equipment ............................................................................................... 13
3TECHNICAL DATA ...................................................................................... 14
4INSTALLATION............................................................................................ 16
4.1 Lifting instructions ................................................................................. 16
4.2 Placing..................................................................................................... 16
4.3 Primary input .......................................................................................... 16
4.4 Terminating resistor ............................................................................... 17
5OPERATION ................................................................................................ 18
5.1 Connections and control devices ......................................................... 18
5.2 Turning on the power source ................................................................ 19
5.3 Fan control .............................................................................................. 19
5.4 Overheating protection .......................................................................... 19
5.5 Remote control unit................................................................................ 19
5.6 WeldCloud™ unit.................................................................................... 19
6MAINTENANCE........................................................................................... 20
6.1 Cleaning the air filter.............................................................................. 20
7TROUBLESHOOTING ................................................................................. 21
8ORDERING OF SPARE PARTS .................................................................. 22
DIAGRAM ............................................................................................................ 23
ORDERING NUMBERS....................................................................................... 24
SPARE PARTS LIST............................................................................................ 25
ACCESSORIES ................................................................................................... 26
Rights reserved to alter specifications without notice.

1 SAFETY
0459 293 787 -5- © ESAB AB 2018
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).
1.2 Safety precautions
WARNING!
These Safety Precautions are for your protection. They summarise precautionary
information from the references listed in Additional Safety Information section.
Before performing any installation or operating procedures, be sure to read and
follow the safety precautions listed below as well as all other manuals, material
safety data sheets, labels, etc. Failure to observe Safety Precautions can result in
injury or death.
PROTECT YOURSELF AND OTHERS
Some welding, cutting and gouging processes are noisy and require
ear protection. The arc, like the sun, emits ultraviolet (UV) and other
radiation and can injure skin and eyes. Hot metal can cause burns.
Training in the proper use of the processes and equipment is essential
to prevent accidents. Therefore:
1. Wear a welding helmet fitted with a proper shade of filter to protect your face and eyes
when welding or watching.
2. Always wear safety glasses with side shields in any work area, even if welding
helmets face shields and goggles are also required.
3. Use a face shield fitted with the correct filter and cover plates to protect your eyes,
face, neck and ears from sparks and rays of the arc when operating or observing
operations. Warn bystanders not to watch the arc and not to expose themselves to the
rays of the electric-arc or hot metal.

1 SAFETY
0459 293 787 -6- © ESAB AB 2018
4. Wear flameproof gauntlet type gloves, heavy long-sleeve shirt, cuff less trousers,
high-topped shoes and a welding helmet or cap for protection, to protect against arc
rays and hot sparks or hot metal. A flameproof apron may also be desirable as
protection against radiated heat and sparks.
5. Hot sparks or metal can lodge in rolled up sleeves, trouser cuffs, or pockets. Sleeves
and collars should be kept buttoned and open pockets eliminated from the front of
clothing.
6. Protect other personnel from arc rays and hot sparks with a suitable non-flammable
partition or curtains.
7. Use goggles over safety glasses when chipping slag or grinding. Chipped slag may be
hot and can fly far. Bystanders should also wear goggles over safety glasses.
FIRES AND EXPLOSIONS
Heat from flames and arcs can start fires. Hot slag or sparks can also
cause fires and explosions. Therefore:
1. Protect yourself and others from flying sparks and hot metal.
2. Remove 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 coatings 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 do 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 operations, inspect the work area to make certain there are no hot
sparks or hot metal which could cause a later fire. Use fire watchers when necessary.
ELECTRICAL SHOCK
Contact with live electrical parts and ground 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 ground system of the
input power.
2. Connect the workpiece to a good electrical ground.
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 earth while working in tight quarters or a damp
area; stand on dry boards or an insulating platform and wear rubber-soled shoes.
8. Put on dry, hole-free gloves before turning on the power.

1 SAFETY
0459 293 787 -7- © ESAB AB 2018
9. Turn off the power before removing your gloves.
10. Refer to ANSI/ASC Standard Z49.1 for specific grounding recommendations. Do not
mistake the work lead for a ground cable.
ELECTRIC AND MAGNETIC FIELDS
May be dangerous. Electric current flowing through any conductor
causes localized Electric and Magnetic Fields (EMF). Welding and
cutting current creates EMF around welding cables and welding
machines. Therefore:
1. Welders having pacemakers should consult their physician before welding. EMF may
interfere with some pacemakers.
2. Exposure to EMF may have other health effects which are unknown.
3. Welders should use the following procedures to minimise exposure to EMF:
a) Route the electrode and work cables together. Secure them with tape when
possible.
b) Never coil the torch or work cable around your body.
c) Do not place your body between the torch and work cables. Route cables on
the same side of your body.
d) Connect the work cable to the workpiece as close as possible to the area being
welded.
e) Keep welding power source and cables as far away from your body as
possible.
FUMES AND GASES
Fumes and gases, can cause discomfort or harm, particularly in
confined spaces. Shielding gases can cause asphyxiation. Therfore:
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 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 ventilation is not adequate. Stop work and take 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
which 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 SAFETY
0459 293 787 -8- © ESAB AB 2018
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 adaptors. Maintain
hoses and fittings in good condition. Follow manufacturer's operating instructions for
mounting 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 engine or drive systems before installing or connecting 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.

1 SAFETY
0459 293 787 -9- © ESAB AB 2018
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
0.
ANSI Z87.1, "Occupational and Educational Personal Eye and Face
Protection Devices"
1.3 User responsibility
Users of ESAB equipment have the ultimate responsibility for ensuring that anyone who
works on or near the equipment observes all the relevant safety precautions. Safety
precautions must meet the requirements that apply to this type of equipment. The following
recommendations should be observed in addition to the standard regulations that apply to
the workplace.
All work must be carried out by trained personnel well-acquainted with the operation of the
equipment. Incorrect operation of the equipment may lead to hazardous situations which can
result in injury to the operator and damage to the equipment.

1 SAFETY
0459 293 787 - 10 - © ESAB AB 2018
1. Anyone who uses the equipment must be familiar with:
○ its operation
○ location of emergency stops
○ its function
○ relevant safety precautions
○ welding and cutting or other applicable operation of the equipment
2. The operator must ensure that:
○ no unauthorised person is stationed within the working area of the equipment
when it is started up
○ no-one is unprotected when the arc is struck or work is started with the
equipment
3. The workplace must:
○ be suitable for the purpose
○ be free from drafts
4. Personal safety equipment:
○ Always wear recommended personal safety equipment, such as safety glasses,
flame-proof clothing, safety gloves
○ Do not wear loose-fitting items, such as scarves, bracelets, rings, etc., which
could become trapped or cause burns
5. General precautions:
○ Make sure the return cable is connected securely
○ Work on high voltage equipment may only be carried out by a qualified
electrician
○ Appropriate fire extinguishing equipment must be clearly marked and close at
hand
○ Lubrication and maintenance must not be carried out on the equipment during
operation
WARNING!
Arc welding and cutting can be injurious to yourself and others. Take precautions
when welding and cutting.
ELECTRIC SHOCK - Can kill
• Install and ground the unit in accordance with instruction manual.
• Do not touch live electrical parts or electrodes with bare skin, wet gloves or
wet clothing.
• Insulate yourself from work and ground.
• Ensure your working position is safe
ELECTRIC AND MAGNETIC FIELDS - Can be dangerous to health
• Welders having pacemakers should consult their physician before welding.
EMF may interfere with some pacemakers.
• Exposure to EMF may have other health effects which are unknown.
• Welders should use the following procedures to minimize exposure to
EMF:
○ Route the electrode and work cables together on the same side of
your body. Secure them with tape when possible. Do not place your
body between the torch and work cables. Never coil the torch or work
cable around your body. Keep welding power source and cables as
far away from your body as possible.
○ Connect the work cable to the workpiece as close as possible to the
area being welded.

1 SAFETY
0459 293 787 - 11 - © ESAB AB 2018
FUMES AND GASES - Can be dangerous to health
• Keep your head out of the fumes.
• Use ventilation, extraction at the arc, or both, to take fumes and gases
away from your breathing zone and the general area.
ARC RAYS - Can injure eyes and burn skin
• Protect your eyes and body. Use the correct welding screen and filter lens
and wear protective clothing.
• Protect bystanders with suitable screens or curtains.
NOISE - Excessive noise can damage hearing
Protect your ears. Use earmuffs or other hearing protection.
MOVING PARTS - Can cause injuries
• Keep all doors, panels and covers closed and securely in place. Have only
qualified people remove covers for maintenance and troubleshooting as
necessary. Reinstall panels or covers and close doors when service is
finished and before starting engine.
• Stop engine before installing or connecting unit.
• Keep hands, hair, loose clothing and tools away from moving parts.
FIRE HAZARD
• Sparks (spatter) can cause fire. Make sure that 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.
NOTE!
Dispose of electronic equipment at the recycling
facility!
In observance of European Directive 2012/19/EC on Waste
Electrical and Electronic Equipment and its implementation
in accordance with national law, electrical and/or electronic
equipment that has reached the end of its life must be
disposed of at a recycling facility.
As the person responsible for the equipment, it is your
responsibility to obtain information on approved collection
stations.
For further information contact the nearest ESAB dealer.

1 SAFETY
0459 293 787 - 12 - © ESAB AB 2018
ESAB has an assortment of welding accessories and personal protection equipment
for purchase. For ordering information contact your local ESAB dealer or visit us on
our website.

2 INTRODUCTION
0459 293 787 - 13 - © ESAB AB 2018
2 INTRODUCTION
The Mig 5000i is a GMAW (MIG/MAG) welding power source, which can also be used for
SMAW (MMA) welding.
There are several variants of the power source:
• Mig 5000i
• Mig 5000i with WeldCloud™ unit
The power source is intended for use with the Aristo Feed 3004 or Aristo Feed 4004HD wire
feed units for manual welding.
The power source Mig 5000i WeldCloud™ is combined with U82and provides a control box
which enables wireless monitoring.
For more information about the feed units and WeldCloud™, refer to the Instruction manuals.
ESAB accessories for the product can be found in the "ACCESSORIES" chapter of
this manual.
2.1 Equipment
The power source is supplied complete with terminating resistor, 5 m return cable and
instruction manual.

3 TECHNICAL DATA
0459 293 787 - 14 - © ESAB AB 2018
3 TECHNICAL DATA
Mig 5000i Mig 5000i WeldCloud™
Mains voltage 460 V ±10%, 3~ 60 Hz 460 V ±10%, 3~ 60 Hz
Mains supply Sscmin 14.54 MVA
Zmax 0.011 Ω
Sscmin 14.54 MVA
Zmax 0.011 Ω
Primary current
Imax GMAW (MIG/MAG) 37 A 37 A
Imax GTAW (TIG) 30 A 30 A
Imax SMAW (MMA) 38 A 38 A
No-load power demand when in the energy-saving mode, 6.5 min. after welding
GTAW/GMAW (TIG/MIG) 36 W 36 W
SMAW (MMA) 43 W 43 W
Voltage/current range
GMAW (MIG/MAG) 8 - 60 V / 16 - 500 A 8 - 60 V / 16 - 500 A
GMAW (MIG/MAG), control
panel M2 8 - 42 V 8 - 42 V
SMAW (MMA) 4 - 500 A 4 - 500 A
Permissible load at GMAW (MIG/MAG)
60 % duty cycle 500 A / 39 V 500 A / 39 V
100% duty cycle 400 A / 34 V 400 A / 34 V
Permissible load at TIG
60 % duty cycle 500 A / 30 V 500 A / 30 V
100% duty cycle 400 A / 26 V 400 A / 26 V
Permissible load at SMAW (MMA)
60 % duty cycle 500 A / 40 V 500 A / 40 V
100% duty cycle 400 A / 36 V 400 A / 36 V
Power factor at maximum
current (I2)
SMAW/GTAW/GMAW
(MMA/TIG/MIG) 0.90 0.90
Efficiency at maximum current (I2)
SMAW (MMA) 85 % 85 %
GTAW (TIG) 82 % 82 %
GMAW (MIG) 84 % 84 %
Open-circuit voltage U0max
GMAW (MIG/MAG) without
VRD function 1) 72 - 88 V 72 - 88 V
SMAW (MMA) without VRD
function 1)
68 - 80 V 68 - 80 V

3 TECHNICAL DATA
0459 293 787 - 15 - © ESAB AB 2018
Mig 5000i Mig 5000i WeldCloud™
GMAW (MIG/MAG), SMAW
(MMA), VRD function
deactivated 2)
59 V 59 V
VRD function activated 2) < 35 V < 35 V
Operating temperature 14 to 104 °F
(-10 to +40 °C)
14 to 104 °F
(-10 to +40 °C)
Transport temperature -4 to 131 °F
(-20 to +55 °C)
-4 to 131 °F
(-20 to +55 °C)
Dimensions l × w × h
without cooling unit
with cooling unit
24.6 × 15.5 × 19.5 in.
(625 × 394 × 496 mm)
24.6 × 15.5 × 19.5in.
(625 × 394 × 496 mm)
24.6 × 15.5 × 30.6 in.
(625 × 394 × 776 mm)
24.6 × 15.5 × 30.6in.
(625 × 394 × 776 mm)
Continual A-weighted
sound pressure
<70 db <70 db
Weight without cooling unit
with cooling unit
150 lb (68 kg) 174 lb (79 kg)
194 lb (88 kg) 218 lb (99 kg)
Insulation class transformer H H
Enclosure class IP23 IP23
Application class
1) Valid for power sources without VRD specification on the rating plate.
2) Valid for power sources with VRD specification on the rating plate. The VRD function is
explained in the instruction manuals for the control panel, if the panel has that function.
Duty cycle
The duty cycle refers to the time as a percentage of a ten-minute period that you can weld or
cut at a certain load without overloading. The duty cycle is valid for 40°C/104°F, or below.
Enclosure class
The IP code indicates the enclosure class, i.e. the degree of protection against penetration
by solid objects or water.
Equipment marked IP23 is intended for indoor and outdoor use.
Application class
The symbol indicates that the power source is designed for use in areas with increased
electrical hazard.

4 INSTALLATION
0459 293 787 - 16 - © ESAB AB 2018
4 INSTALLATION
The installation must be carried out by a professional.
NOTE!
Mains supply requirements
This equipment complies with IEC 61000-3-12 provided that the short-circuit
power is greater than or equal to Sscmin at the interface point between the user's
supply and the public system. It is the responsibility of the installer or user of the
equipment to ensure, by consultation with the distribution network operator if
necessary, that the equipment is connected only to a supply with a short-circuit
power greater than or equal to Sscmin. Refer to the technical data in the
TECHNICAL DATA chapter.
4.1 Lifting instructions
CAUTION!

4.2 Placing
Position the welding power source such that its cooling air inlets and outlets are not
obstructed.
4.3 Primary input
WARNING!
ELECTRIC SHOCK CAN KILL! PRECAUTIONARY MEASURES SHOULD BE
TAKEN TO PROVIDE MAXIMUM PROTECTION AGAINST ELECTRICAL
SHOCK. BE SURE THAT ALL POWER IS OFF BY OPENING THE LINE (WALL)
DISCONNECT SWITCH WHEN PRIMARY ELECTRICAL CONNECTIONS ARE
MADE TO THE POWER SOURCE. BE SURE TO CHECK YOUR INPUT LEADS
WITH A VOLTMETER TO MAKE SURE ALL POWER IS OFF.

4 INSTALLATION
0459 293 787 - 17 - © ESAB AB 2018
Check that the unit is connected to the correct mains power supply
voltage, and that it is protected by the correct fuse sizes.
A protective earth connection must be made, in accordance with
regulations.
Rating plate with supply connection data
Recommended fuse sizes and minimum cable areas
Mig 5000i 460 V 3~ 60 Hz
Mains voltage 460 V
Mains cable area, CU/AWG (mm2)4G6
Phase current, I RMS 28 A
Fuse Time Delay 50 A
NOTE!
Sizes per National Electric Code for 90 °C rated copper conductors @ 30 °C
ambient. Not more than three conductors in raceway or cable. Local codes
should be followed if they specify larger sizes other than those listed above.
4.4 Terminating resistor
In order to avoid communication interference,
the ends of the CAN bus must be fitted with
terminating resistors.
One end of the CAN bus is at the control
panel, which has an integral terminating
resistor. The other end at the power source
must be fitted with the terminating resistor, as
shown on the right.

5 OPERATION
0459 293 787 - 18 - © ESAB AB 2018
5 OPERATION
General safety regulations for handling the equipment can be found in the "SAFETY"
chapter of this manual. Read it through before you start using the equipment!
5.1 Connections and control devices
1Orange indicating lamp - Overheating 10 Fuse for supply voltage for feeder unit,
42 V
2White indicating lamp - Power supply ON 11* *Only on WeldCloud™ version:
Connection for Ethernet
3Main power supply switch, 0 / 1 / START 12* *Only on WeldCloud™ version: Measure
outlet screw terminal - RED (+)
4Connection (-) for return cable at SMAW
and GMAW or for welding current cable
at GTAW
13* *Only on WeldCloud™ version: Measure
outlet screw terminal - BLACK (-)
5Connection for remote control 14 Connection for control cable to the wire
feed unit or for the terminating resistor
6Connection (+) for welding current cable
at SMAW or for return cable at GTAW
15 Connection for control cable to the wire
feed unit or for the terminating resistor
7* *Only on WeldCloud™ version: Antenna 16 Connection (+) for welding current cable
to the wire feed unit
8* *Only on WeldCloud™ version: USB
Connectivity
17 Connection (-) for the return cable wire
feed unit
9* *Only on WeldCloud™ version: Red
indicating lamp - Wi-Fi Connectivity

5 OPERATION
0459 293 787 - 19 - © ESAB AB 2018
5.2 Turning on the power source
Turn on the mains power by turning switch (3) to the ”START” position. Release the switch,
and it will return to the ”1” position.
If the mains power supply should be interrupted while welding is in progress, and then be
restored, the power source will remain de-energised until the switch is again turned manually
to the ”START” position.
Turn the unit off by turning the switch to the ”0” position.
In the event of a loss of supply power or of turning the power source off in the normal
manner, welding data will be stored so that it is available next time the unit is started.
5.3 Fan control
The power source fans continue to run for 6.5 minutes after welding has stopped, and the
unit switches to energy-saving mode. They start again when welding restarts.
The fans run at reduced speed for welding currents up to 180 A, and at full speed for higher
currents.
5.4 Overheating protection
The power source has three thermal overload trips which operate if the internal temperature
becomes too high, interrupting the welding current and lighting the orange indicating lamp on
the front of the unit. They reset automatically when the temperature has fallen.
5.5 Remote control unit
The program version in U8 should be 1.20 or higher. Power sources with intergral control
panels should have program version 1.21 or higher, in order for the remote control to function
correctly.
When the remote control unit is connected, the power source and wire feed unit are in
remote control mode; the buttons and knobs are blocked. The functions can only be adjusted
via the remote unit.
If the remote control unit is not to be used, the remote control unit must be disconnected from
the power source / wire feed unit, as otherwise it will remain in remote control mode.
For more information about the operation of the remote control unit, see the operating
instructions for the control panel.
5.6 WeldCloud™ unit
The WeldCloud™ unit connects the welding power source with a local WeldCloud™ server
through Wi-Fi or Wired LAN. The WeldCloud™ unit is equipped with GPS to track the
location of the welding power source. It also has Bluetooth connectivity to enable connection
with 3rd party input devices, for example a Bluetooth enabled barcode/QR scanner.
The WeldCloud™ unit Wi-Fi is enabled at power up of the power source. It will start as a
hotspot that appears as an available Wi-Fi network. After establishing connection, it is
possible to access the web interface of the power source for a one-time set-up. After set-up
and restart, the power source will be visible in WeldCloud™. For more information about the
WeldCloud™ unit and features, see the WeldCloud™ instruction manual.

6 MAINTENANCE
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6 MAINTENANCE
NOTE!
Regular maintenance is important for safe and reliable operation.
Only those persons who have appropriate electrical knowledge (authorised personnel) may
remove the safety plates to connect or carry out service, maintenance or repair work on
welding equipment.
CAUTION!
All warranty undertakings from the supplier cease to apply if the customer
attempts any work to rectify any faults in the product during the warranty period.
6.1 Cleaning the air filter
1. Release the cover plate with the
dust filter (1).
2. Swing out the cover plate (2).
3. Remove the dust filter (3).
4. Blow it clean with compressed air at
reduced pressure.
5. Replace the filter with the finer mesh
on the side against the cover plate
(2).
6. Replace the cover plate with the
filter.