ESAB Caddy Mig C200i User manual

Caddy®
Instruction manual
0440 001 001 GB 20200203 Valid for: serial no. 932-xxx-xxxx
Mig C200i

TABLE OF CONTENTS
0440 001 001 © ESAB AB 2020
1SAFETY ....................................................................................................... 4
1.1 Meaning of symbols ............................................................................... 4
1.2 Safety precautions ................................................................................. 4
2INTRODUCTION.......................................................................................... 7
2.1 Equipment ............................................................................................... 7
3TECHNICAL DATA ...................................................................................... 8
4INSTALLATION............................................................................................ 10
4.1 Lifting instruction ................................................................................... 10
4.2 Location................................................................................................... 10
4.3 Mains power supply ............................................................................... 10
5OPERATION ................................................................................................ 12
5.1 Connection and control devices ........................................................... 13
5.2 Operation................................................................................................. 13
5.2.1 Manual mode........................................................................................ 14
5.2.2 QSet mode ........................................................................................... 14
5.2.3 Unit of measurement ............................................................................ 15
5.3 Error codes ............................................................................................. 15
5.4 Inductance settings (Fe/SS) .................................................................. 16
5.5 Polarity change....................................................................................... 16
5.6 Wire feed pressure ................................................................................. 17
5.7 Replacing and inserting wire................................................................. 17
5.7.1 Changing the feed roller groove ........................................................... 18
5.8 Shielding gas .......................................................................................... 18
5.9 Overheating protection .......................................................................... 18
6MAINTENANCE........................................................................................... 19
6.1 Inspection and cleaning......................................................................... 19
6.2 Changing the wire liner.......................................................................... 19
7TROUBLESHOOTING ................................................................................. 20
8ORDERING SPARE PARTS ........................................................................ 21
DIAGRAM ............................................................................................................ 22
ORDERING NUMBERS....................................................................................... 23
WEAR PARTS...................................................................................................... 24
ACCESSORIES ................................................................................................... 25
Rights reserved to alter specifications without notice.

1 SAFETY
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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
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. 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

1 SAFETY
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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.
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.

1 SAFETY
0440 001 001 -6- © ESAB AB 2020
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!
CAUTION!
This product is solely intended for arc welding.
WARNING!
Do not use the power source for thawing frozen pipes.
CAUTION!
Class A equipment is not intended for use in residential
locations where the electrical power is provided by the
public low-voltage supply system. There may be
potential difficulties in ensuring electromagnetic
compatibility of class A equipment in those locations,
due to conducted as well as radiated disturbances.
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.
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
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2 INTRODUCTION
Mig C200i is a portable welding power source in a compact design, intended for MIG/MAG
welding.
It is possible to switch between welding with solid wire/shielding gas and welding with
selfshielded cored wire without gas.
The power source operates with wire diameters from Ø0.6 to Ø1.0 mm. Pure argon, mixed
gas or pure C02may be used as shielding gases.
2.1 Equipment
The power source is supplied with:
• Instruction manual
•Welding torch MXLTM 180 (3 m, fixed)
• Return cable with clamp (3 m, fixed)
• Mains cable (3 m, fixed, with plug)
• Shoulder strap (see "Lifting instruction" section in "INSTALLATION" chapter).
• Gas hose with quick connection (4.5 m)
ESAB accessories for the product can be found in the "ACCESSORIES" chapter of
this manual.

3 TECHNICAL DATA
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3 TECHNICAL DATA
Mig C200i
Mains voltage 230 V, 1 ~ 50/60 Hz
Permissible load at:
25 % duty cycle 180 A
60 % duty cycle 120 A
100 % duty cycle 100 A
Setting range 30 A - 200 A
Open circuit voltage 60 V
Open circuit power 15 W
Efficiency at maximum current 82%
Power factor at maximum current 0.99
Wire feed speed 2.0 - 12.0 m/min
Wire diameter:
Fe Ø 0.6 - 1.0
Cored wire Ø 0.8 - 1.0
Ss Ø 0.8 - 1.0
Al Ø 1.0
Max. diameter wire bobbin Ø200 mm
Continual sound pressure at no-load < 70 db
Dimensions l × w × h 449 × 198 × 347 mm
Weight 12 kg
Operating temperature -10 to +40°C
Transportation temperature -20 to +55°C
Enclosure class IP 23C
Application classification
Welding torch MXL 180
Cooling Air/shielding gas
Permitted load at 20 % duty cycle:
Carbon dioxide C02200 A
Mixed gas Ar/C02180 A
Self-shielded 120 A
Permitted load at 35 % duty cycle:
Carbon dioxide C02180 A
Mixed gas Ar/C02150 A
Self-shielded 100 A
Recommended gas flow 8 - 15 I/min
Wire diameter 0.6 - 1.0 mm
Weight 1.32 kg

3 TECHNICAL DATA
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Welding torch MXL 180
Length cable assembly 3.0 m
Standard control cable 2-pole
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 IP23C 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
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4 INSTALLATION
The installation must be carried out by a professional.
NOTE!
Mains supply requirements
High power equipment may, due to the primary current drawn from the mains
supply, influence the power quality of the grid. Therefore connection restrictions or
requirements regarding the maximum permissible mains impedance or the required
minimum supply capacity at the interface point to the public grid may apply for some
types of equipment (see "TECHNICAL DATA" chapter). In this case 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 may be
connected.
4.1 Lifting instruction
The power source is lifted by the handle or by the shoulder strap, supplied with the power
source. The strap is fastened as shown in the picture below.
4.2 Location
Position the welding power source such a way that its cooling air inlets and outlets are not
obstructed.
4.3 Mains power supply
Check that the unit is connected to the correct mains power supply voltage, and that it is
protected by the correct fuse size. A protective earth connection must be made, in
accordance with regulations.

4 INSTALLATION
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Rating plate with supply connection data
Recommended fuse sizes and minimum cable area
Mig C200i
Mains voltage
Mains cable area mm2
Phase current, leff
Fuse anti-surge
230 V ±15% 1~ 50/60 Hz
3G 1.5 mm2
10 A
16 A
NOTE!
The mains cable areas and fuse sizes as shown above are in accordance with
Swedish regulations. For other regions, supply cables must be suitable for the
application and meet local and national regulations.
Extension cable
If needed, it is recommended to use an extension cable, 3G 2.5 mm2, of a maximum length
of 50 m.
Supply from power generators
The power source can be supplied from different types of generators. However, some
generators may not provide sufficient power for welding. The generators with AVR,
equivalent or better type of regulation with rated power 5.5 - 6.5 kW are recommended to
supply the power source within its full capacity.
It is also possible to use generators with lower rated power, starting from 3.0 kW, but in that
case the setting must be proportionally limited. The power source is protected against
undervoltage. If the power supplied by the generator is not sufficient, the welding is
interrupted. Especially the welding start could be disturbed. In case of disturbed welding
process, either adjust the welding parameters or change to a more powerful generator.

5 OPERATION
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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!
NOTE!
When moving the equipment use intended handle. Never pull on the torch.
WARNING!
Rotating parts can cause injury, take great care.
WARNING!
Assure that the side panels are closed during operation.
WARNING!
Risk of crushing when replacing the wire bobbin! Do not use safety gloves when
inserting the welding wire between the feed rollers.
WARNING!
Lock the bobbin in order to prevent
it from sliding off the hub.

5 OPERATION
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5.1 Connection and control devices
1. Mains supply switch 4. Return cable
2. Display 5. Mains cable
3. Welding torch 6. Gas connection
5.2 Operation
The power source is not powered instantly when the mains switch (1) is turned on. After
approximately 2 seconds the display (2) indicates that the power source is ready.
If the welding torch trigger is pressed while the power source is being turned on, the
operation is disabled, until the trigger is released.
The return cable (4) must be reliably connected to the workpiece or to the welding table.
The side panel covering the wire feeder must be closed prior to the welding.
The power source is instantly switched off by means of the mains switch (1).

5 OPERATION
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5.2.1 Manual mode
A Voltage setting
B Wire feed speed setting
C Inductance setting
D Manual/QSet mode
E Wire feed speed
F Welding current
G Welding voltage
The operator must set appropriate values for the wire feed speed and welding voltage.
5.2.2 QSet mode
A QSet value setting
B Plate thickness setting
C Material selection/
Inductance setting
D Manual/QSet mode
E Wire feed speed
F Welding current
G Welding voltage
H QSet value
I Plate thickness
In QSet mode the appropriate welding voltage is automatically set by the power source. QSet
monitors the welding arc and continuously adjusts the voltage to maintain the optimal setting.
Calibration
The first time you use QSet mode, and when you change welding wire, material or shielding
gas, you need to allow QSet to calibrate. This is done by making a test weld (min. 6
seconds). Simply start welding and let QSet find the correct parameter settings.

5 OPERATION
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Material selection
Since different materials have different heat dispersion, it is necessary to select the right
material group (C) so that a correct plate thickness value can be calculated. Settings for
cored wire is done only in manual mode.
Plate thickness setting
Set the plate thickness of the object you want to weld using the plate thickness setting knob
(B). This knob sets the wire feed speed (E). A suitable voltage setting is automatically
calculated by QSet. The recommended plate thickness for the set wire feed speed is
displayed simultaneously (I). The plate thickness recommendation is calculated for a fillet
weld using the following wire dimensions: Fe/Ss and CuSi - Ø0.8 mm, Al - Ø1.0 mm. If you
use a smaller diameter wire you should set a slightly higher value for plate thickness than
what you are going to weld. If you use a larger diameter wire set a slightly lower value.
Heat input adjustment
The heat input can be adjusted with the QSet knob (A) in steps from -9 to +9 to make the
weld hotter or colder. A higher value gives a hotter, more concave, weld (longer arc length)
for more penetration. A lower value gives a colder, more convex, weld (shorter arc length) to
prevent burning through the workpiece. Typically the QSet value should be set to 0 which
gives you an average heat input that is suitable in most cases. The heat input setting is
symbolised with a thermometer indicating hotter or colder settings.
5.2.3 Unit of measurement
The setting of the unit of measurement is a hidden fuction. The default value for the power
source is mm. This can be changed to inch by pressing the pushbuttons (D) and (C) and
holding them pressed in 5 sec. With the help of the knob (B) the required unit of
measurement is selected.
5.3 Error codes
If an error occurs, only the error code will be visible.
Error No. Description Action
1 Program related error
Switch the equipment OFF, wait 30 sec. and switch it
ON. Call for service if the error remains.
2 Hardware related error
3 Hardware related error
5 Program related error
4Thermal protection Do not switch the power source OFF, let it to cool
down.

5 OPERATION
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5.4 Inductance settings (Fe/SS)
In certain cases especially for mild steel welding in different gases the quality of welding may
be improved by changing the inductance settings of the power source.
The inductance function is normally hidden, but can be invoked by the pressing and keeping
pressed the pushbutton (C) for 5 s or more. When this setting is available, all graphics from
the right side of the display disappears, and only number from 00 to 10 is displayed. This
number corresponds to the inductance value. 00 means that the inductance is low and the
welding arc is "sharp", 10 means that the inductance is high and the welding arc is "soft".
The value of the inductance can be set by means of the knob (B). Default setting is 05.
Recommendations:
• When the CO2is used it is recommended to set lower inductance then 05, for instance
from 03 down to 00
• When the Ar/CO2mixture is used, the operator should set higher inductance from 05
up to 10.
The display goes back to the regular appearance 10 s after the last movement of the knob
(B) or pressing pushbutton (C). The return to the regular mode can accelerate by again
pressing and keeping the pushbutton (C) pressed for 5 s.
5.5 Polarity change
+/- terminals
The power source is delivered with the welding wire connected to the plus pole. Some wires,
e.g. shelfshielded cored wires, are recommended to be welded with negative polarity.
Negative polarity means that the wire is connected to the minus pole and the return cable to
the plus pole. Check the recommended polarity for the welding wire you want to use.
The polarity can be changed as follows:
1. Switch off the power source and disconnect the mains cable.
2. Open the side panel.
3. Bend the rubber covers back to give access to the +/- terminals.
4. Remove the nuts and washers. Note the correct order of the washers.
5. Change the position of the cables to the desired polarity (see marking).
6. Install the washers in correct order and tighten the nuts to spanner tightness.
7. Make sure the rubber covers are covering the +/- terminals.

5 OPERATION
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5.6 Wire feed pressure
Start by making sure that the wire moves smoothly through the wire guide. Then set the
pressure of the wire feeder's pressure rollers. It is important that the pressure is not too high.
Figure A Figure B
To check that the feed pressure is set correctly, you can feed out the wire against an
insulated object, e.g. a piece of wood.
When you hold the welding torch approx. 5 mm from the piece of wood (figure A) the feed
rollers should slip.
If you hold the welding torch approx. 50 mm from the piece of wood, the wire should be fed
out and bend (figure B).
5.7 Replacing and inserting wire
1. Open the side panel.
2. Place the spool on the hub and secure it with the lock.
3. Disconnect the pressure arm by folding it sidewards, the pressure roller slides away.
4. Straighten out the new wire 10-20 cm. File away burrs and sharp edges from the end
of the wire before inserting it into the wire feeder.
5. Make sure that the wire goes properly into the feed roller groove and into the outlet
nozzle and the wire liner.
6. Secure the pressure arm.
7. Close the side panel.
Feed the wire through the welding torch until it comes out through the nozzle. This operation
should be carried out carefully, as the wire is ready for welding and an unintentional arc may
occur. Keep the torch off conducting parts during feeding the wire through and terminate wire
feeding instantly when the wire comes out.
See "TECHNICAL DATA" chapter for suitable wire dimensions for each wire type.
Use only Ø200 mm spools.
NOTE!
Ø100 mm/1 kg spools are not applicable.
WARNING!
Do not keep the torch near the ears or the face during wire feeding, as this
may result in personal injury.

5 OPERATION
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NOTE!
Remember to use the correct contact tip in the welding torch for the wire diameter
used. The torch is fitted with a contact tip for Ø0.8 mm wire. If you use another
diameter you must change the contact tip. The wire liner fitted in the torch is
recommended for welding with Fe and Ss wires. Change the liner to the PTFE type
for welding Al or Brazing (CuSi). See "Changing the wire liner" section in the
"MAINTENANCE" chapter regarding how to change the wire liner.
5.7.1 Changing the feed roller groove
The power source is delivered with the feed roller set for Ø0.8/1.0 mm welding wire. If you
want to use it for Ø0.6 mm wire you must change the groove in the feed roller.
1. Fold back the pressure arm to release the pressure roller.
2. Switch on the power source and press the torch trigger to position the feed roller so
that the locking screw is visible.
3. Switch off the power source.
4. Use a 2 mm Allen key to open the locking screw about half a turn.
5. Pull the feed roller off the shaft and turn it around. See marking on the side of the feed
roller for suitable wire diameters.
6. Put the roller back on the shaft and make sure it goes all the way in. You may need to
turn the roller to position the locking screw over the flat surface of the shaft.
7. Tighten the locking screw.
5.8 Shielding gas
The choice of suitable shielding gas depends on the material. Typically mild steel is welded
with mixed gas (Ar + CO2) or carbon dioxide. Stainless steel can be welded with mixed gas
(Ar + CO2or Ar + O2) and Aluminium with pure argon. MIG/MAG brazing (CuSi) uses pure
argon or mixed gas (Ar + O2). Check the recommended gas for the welding wire you want to
use. In the QSet™ mode (see "QSet mode" section) the optimal welding arc with the gas you
use will be automatically set.
5.9 Overheating protection
Overheating is indicated on the display (2) with error code E4. A thermal overload fuse
protects the unit against overheating by disabling the welding if overheating occurs. The fuse
resets automatically when the unit has cooled down.

6 MAINTENANCE
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6 MAINTENANCE
NOTE!
Regular maintenance is important for safe and reliable operation.
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 Inspection and cleaning
Power source
• Check regularly that the power source is free from dirt.
• How often and which cleaning methods apply depend on: the welding process, arc
times, placement, and the surrounding environment. It is normally sufficient to blow the
dust out of the power source with dry compressed air (reduced pressure) once a year.
• Clogged or blocked air inlets and outlets otherwise result in overheating.
Welding torch
• The welding torch's wear parts should be cleaned and replaced at regular intervals in
order to achieve trouble-free wire feed. Blow the wire guide clean regularly and clean
the contact tip.
6.2 Changing the wire liner
A. Loosen the fixing screw and take the roller off the axle.
B. Loosen the adaptor nut, straighten the torch cable and remove the liner.
C. Insert the replacement liner into the straightened cable until it touches the contact tip.
D. Lock the liner with adaptor nut. Cut excess of liner so it sticks 7 mm out of tip adaptor.

7 TROUBLESHOOTING
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7 TROUBLESHOOTING
Try these recommended checks and inspections before sending for an authorised service
technican.
Type of fault Actions
No arc • Check that the mains power supply switch is turned on.
• Check that the welding current supply and return cables
are correctly connected.
• Check that correct current value is set.
Welding current is
interrupted during welding
• Check whether the overheating protection has tripped.
(Indicated by error E4 on the display.)
• Check the main power supply fuses.
The overheating protection
trips frequently
• Check to see whether the air inlet or outlet is clogged.
• Make sure that you are not exceeding the rated data for
the power source (i.e. that the unit is not being
overloaded).
Poor welding performance • Check that the welding current supply and return cables
are correctly connected.
• Check the gas supply.
• Check that the correct current value is set.
• Check that the correct welding wires are being used.
• Check if proper rolls are applied and the pressure of the
wire feeder's pressure rollers is properly set.