Jobsite CT2230 User manual

200AMP INVERTER MMA PORTABLE
WELDING MACHINE CT2230
INSTRUCTION MANUAL
This welding machine is designed and built with safety in mind. However, your overall safety
can be increased by proper installation and thoughtful operation on your part.
DO NOT INSTALL, OPERATE OR REPAIR THIS EQUIPMENT WITHOUT READING THIS
MANUAL AND THE SAFETY PRECAUTIONS CONTAINED THROUGHOUT. AND, MOST
IMPORTANTLY, THINK BEFORE YOU ACT AND BE CAREFUL!
Cannon Tools Limited
Address:20 Station Road, Rowley Regis, West Midlands, B65 0JU.UNITED KINGDOM

EC DECLARATION OF CONFORMITY
We CANNON TOOLS LTD
20 Station road, Rowley Regis, West Midlands,B65 0JU.U.K.
Declare that the following machine complies with the appropriate basic safety
and health requirements of the EC Directive based on its design and type, as
brought into circulation by us.
In case of alteration of the machine, not agreed upon by us, this declaration will
lose its validity.
Product description: 200AMP INVERTER MMA PORTABLE
WELDING MACHINE
Model: CT2230
Applicable EC Directives:
EC Low Voltage Directive 2014/35/EU
EC Electromagnetic Compatibility 2014/30/EU
ROHS - Directive 2011/65(EU)
Harmonized standards:
EN IEC 60974-1:2018/A1:2019
EN 60974-10:2014/A1:2015
IEC 62321:2009
20 Station Road, Rowley Regis, West Midlands, B65 0JU.U.K.
Mr. Gurcharan Tony Singh Sanghera
Managing Director
CANNON TOOLS LTD
2021-08-11

1. SPECIFICATIONS
Rated voltage ................................................. 230~50Hz
Rated input .................................................. 8.2KVA
No-load voltage ............................................... 65V
Current range ...................................................10 - 200A
Usable electrode diameter................................1.6 –5.0mm
Duty cycle:........................................................ 60% @ 200A
Degree of protection........................................... IP21S
Cooling ............................................................... Air (fan)
Insulation class.................................................... H
2. IMPORTANT SAFETY INFORMATION
Warning! Read all safety warnings and all instructions. When using electric tools
basic safety precautions should always be followed to reduce the risk of fire,
electric shock, and personal injury including the following.
Read all these instructions before attempting to operate this product and save
these instructions.
Welding is a kind of professional work, which required the operators be specially
trained before making any operation. It is a must that obey the operation rule and
dress on the required coats.
There are some main factors which will be danger to workers. To ensure your
safety, please pay attention to the followings points:
Welding ARC RAY 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. Head shield and filter lens
should conform to ANSI Z87.I standards.
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.

FUMES and GAS 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 (TLV) 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.
Shielding 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.
Note: Read and understand the manufacturer’s instructions for this equipment
and the consumables to be used.
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 prevent hazardous situations.
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, cuffless 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.
Electric and Magnetic Fields may be dangerous
Electric current flowing through any conductor causes
localized Electric and Magnetic Fields (EMF). Welding
current creates EMF fields around welding cables and welding machines.
EMF fields may interfere with some pacemakers, and welders having a
pacemaker should consult their physician before welding.
Exposure to EMF fields in welding may have other health effects which are
now not known.
All welders should use the following procedures in order to minimize
exposure to EMF fields from the welding circuit:
Route the electrode and work cables together – Secure them with tape
when possible.
Never coil the electrode lead around your body.
Do not place your body between the electrode and work cables. If the
electrode cable is on your right side, the work cable should also be on
your right side.
Connect the work cable to the workpiece as close as possible to the
area being welded.
Do not work next to welding power source.

Electric shock
The electrode and work (or ground) circuits are electrically
“hot” when the welder is on. Do not touch these “hot” parts with
your bare skin or wet clothing. Wear dry, hole-free gloves to
insulate hands.
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.
In addition to the normal safety precautions, if welding must be performed
under electrically hazardous conditions (in damp locations or while wearing
wet clothing; on metal structures such as floors, gratings or scaffolds; when
in cramped positions such as sitting, kneeling or lying, if there is a high risk
of unavoidable or accidental contact with the workpiece or ground) use the
following equipment:
Semiautomatic DC Constant Voltage (Wire) Welder.
DC Manual (Stick) Welder.
AC Welder with Reduced Voltage Control.
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.
Ground the work or metal to be welded to a good electrical (earth) ground.
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 floor level, use a safety belt to protect yourself from a fall
should you get a shock.

Personal Protection
DANGER! Unplug the inverter from the mains power supply before connecting or
disconnecting cables or performing maintenance or service. Direct contact with
the inverter circuit is dangerous.
– The body should be protected by suitable clothing.
– The use of neck protection may be necessary against reflected radiation.
– Wear safety glasses when chipping, wire brushing, grinding, or when near
cooling welds as metal filings or slag can be thrown up. Fully enclosed goggles
are advisable.
– Arc machines generate a magnetic field which is detrimental to pacemaker
recipients. Consult your doctor before going near welding equipment/
operations.
– The UV and IR radiation generated by welding is highly damaging to the eye,
causing burns. This can also affect the skin. Protect the eyes and face.
– The face and eyes shall be protected by suitable welding shields equipped with
appropriate ocular protection filters.
– Where environments are subject to pedestrians and traffic ensure a protective
screen is used to avoid accidental arc glare.
- Do not weld in the vicinity of children or animals and ensure no one is looking
before striking up.
– In the welding environment, damaging levels of noise can exist. Wear hearing
protection if the process dictates.
– Do not touch hot equipment or metal. Allow the weld time to cool, use the
correct tool and wear protective welding gauntlets.
– Wear flame retardant clothing (leather, wool, etc.).
– Take care when adjusting or maintaining the torch that it has had time to cool
sufficiently and is disconnected.
– The arc generates:
• ultra-violet radiation (can damage skin and eyes).
• visible light (can dazzle eyes and impair vision).
• infra-red (heat) radiation (can damage skin and eyes).
– Such radiation can be direct or reflected from surfaces such as bright metals
and light coloured objects.
Gas cylinders
– Gas cylinders should be located or secured so that they cannot be knocked

over.
– Shield gas containers can explode if damaged. Take care when handling.
– Ensure gas cylinders are shut-off when not in use and between operations.
– Take care that no build-up of gas is permitted to form in confined areas.
– Cylinders must be in an upright position at all times during use and storage.
– The gas cylinder must never come in contact with the electrode.
– Follow the manufacturer’s instructions for handling, storing, and using the gas
bottle correctly and safely.
– Use the correct equipment to connect the gas bottle to the welding torch.
Limitations
– Do not use for:
• operations in severe conditions (e.g. extreme climates, freezer applications,
strong magnetic fields, etc).
• operations subject to special rules (e.g. potentially explosive atmospheres,
mines, etc).
• operations that require ingress protection greater than IPX0, e.g. in rain or snow,
etc.
General
– Training should be sought out in:
• the safe use of this equipment;
• the processes;
• the emergency procedures;
– Welding power sources are not to be used for pipe thawing.
– Take precautions against toppling over, if the power source shall be placed on
a tilted plane.
– All equipment should be kept in good working condition, inspected and, when
defective, promptly repaired or withdrawn from service - All equipment should be
placed so that it does not present a hazard in passageways, on ladders, or
stairways, and should be operated in accordance with the manufacturer’s
instructions.
– In the vicinity of an arc, non-reflective curtains or screens shall be used to
isolate persons from the arc radiation. A warning, e.g. a symbol for eye
protection, should refer to the hazard of arc radiation.

3. TECHNICAL DESCRIPTION
(1) Current adjustment control
(2) LED amperage display
(3) Thermal overload indicator
(4) Power ON indicator
(5) MMA electrode holder connection
(6) MMA earth clamp connection
(7) Carry handle
(8) Power ON/OFF switch
(9) Power supply cable
(10) Face mask
(11) MMA electrode holder
(12) MMA earth clamp
(13) Brush/hammer

4. UNPACKING AND CHECKING
Carefully remove the product from the packaging and examine it for any sign of
damage. Check contents against the parts shown in Fig A. If any part is damaged
or missing, please contact the seller. Do not attempt to use the product!
Contents:
1x MMA Inverter Welder, 200A,
1 x 250A electrode holder with 1.8M cable,
1 x 300A grounding clamp with 1.3M cable,
1 x mask ,
1 x chipping hammer/wire brush

5. INSTALL CONDITIONS
Install it in the place where temperature is during -10 to 40 ℃;
Use it in a dry condition with the air humidity less than 90%.
Do not use it under strong sunshine or rain. Do not let the water flow into
inner side of machine.
Do not use it under the condition in dust or in corrosive gas.
Do not use it at where there is a strong air flow.
Safety measures
Welding machines have the protection function of over-voltage, over-current and
over-heat. It will stop working if its voltage, output current or temperature
exceeds its pre-set parameters. It will also be burned if it is used with a high
voltage. So, please pay attention to the following points:
Keep good Ventilation condition
This machine is for industrial use. There is a big current flow when it works so
the natural wind cannot cool down the machine. Please keep the fan work well.
It is a necessary that kept 30cm always from the other objects. It is also very
important to keep a good ventilation condition so that it can work well and work
in a long life.
Over-duty forbidden
It will suddenly stop working and be in the protected status if its using duty cycle
exceeds its design. It shows that it is over-heat and temperature switch start to
work and red indicator lights. If so, do not pull out the power plug out so that
cooling fan can work and machine can be cooled down. It will work again when
the red indicator lights and the temperature return to a normal range.
Over-current forbidden
Keep machine working in its rated current (reference to its duty cycle).
Over-current will short its life even burn it.
Over-voltage forbidden
Usually, the voltage automatic compensation circuit will keep the welding
current in the normal range. But, it will be burned if it is used in excess of rated
range.
Grounding
Be sure machine has been grounded to avoid the leakage accident.
Warning
Do not use the welding power source for pipe thawing.

6. ASSEMBLING THE MMA WELDER
CONNECTION TO THE POWERSUPPLY
. Connection to at least a 32Amp fused supply is recommended. Seek the advice
of a qualified electrician for connection to a suitable supply.
CONNECTING THE EARTH CLAMP
With the lug on the pin at top, push the connector fully into the right-hand (–) port
then turn clockwise 180° to lock, hand tight only.
ATTACHING THE ELECTRODE HOLDER
The electrode holder is connected into the left hand connection port (+) unit in
the same way as the earth clamp.
7. SETTING THE MMA WELDER
RATING PLATE

IP21S
Unit’s protection
class rating.
European conformity.
MMA welder
U0:65V
Secondary no-load
voltage
Semiconductor
diode rectifier.
U1:230V
Rated supply voltage.
1~50Hz
Power supply
identifier, e.g.
socket with 3
poles.
X%
Rated duty cycle.
Direct Current
(DC) delivery.
I2
Welding current (AMPS)
Inverter frequency
conversion stage.
U2
Welding current (VOLTS)
Transformer.
I1 max : 41A
Unit’s maximum absorbed
current (AMPS).
Indoor use only.
Do not expose to
rain.
I1 eff :31.7A
Unit’s effective absorbed
current (AMPS).
Class H
Insulation rating.
EN IEC
60974-1:2018
/A1:2019
European reference safety
standard.

Set power equipment capacity and connect cable sectional area which must be
accorded with welding machine capacity.
Shielding gas must be set with flow volume adjuster, and choose proper air
stream volume according to the welding current.
If necessary, please install water cooling equipment.
Be sure to set creepage proof equipment.
While welding at indoor environment, it may produce electromagnetic wave
radiation which will disturb other home equipment. Please be sure your
equipment capacity and choose the correct cable sectional area:
Item
Parameter
Equipment capacity
Over 20KVA
Electronical match case capacity
OVER 20KVA
Input cable
OVER 14mm²
Output cable
OVER 30mm²
8. OPERATION
BASIC MMA/ARC WELDING PROCESS OVERVIEW
During the MMA welding process, the arc created between the work piece and
the consumable electrode rod melts the parent metal and the filler metal in a
weld pool. The electrode’s flux coating reacts during this process and develops
into a shield gas protecting the weld bead. Part of this reaction leaves a trail of
slag which solidifies behind the weld pool protecting the weld as it cools. The
most common varieties of electrodes are cellulosic, rutile and basic, the latter two
being the most general purpose. Selection of the appropriate specification
electrode is important to achieve a good quality weld. Seek guidance if unsure of
selection.
MMA MACHINE OPERATION
Prepare the joint(s) to be welded. − Insert the electrode suitable for the
application into the electrode holder (1) while pressing lever (2).
− With the earth clamp and electrode holder connected, connect the machine to
the power supply. The power display will illuminate as confirmation. Set the
amperage appropriate to the selected electrode size.
− Secure the earth clamp to a clean sound section of the parent metal in the

vicinity to the intended weld.
− With all safety equipment in place and personal protective clothing on begin
welding.
− Lower the electrode down toward the parent metal and strike the arc.
− The position of the electrode is critical to the arc and the end result.
− Achieving a good weld will take practice. For more detailed information refer to
a industry standard welding publication and/or seek training on the subject.
Notice: Electronic voltage should be consistent with input voltage.
9. TROUBLE SHOOTING
The following phenomena may caused by welding environment, accessories,
gas, and power supply. Please try to improve the welding condition so that it can
avoid those bad results.
1It is difficult to arc and easy to be broken.
Be sure the tungsten is in a good quality.
Be sure the tungsten has been milled.
2 Welding Current is unstable
Power system is unstable
It is interfered by power system or other electrical equipments
1
2

10. MAINTENANCE
Possible Faults and Solutions
Possible Faults
phenomenon
Causes and Solutions
Electric source indicator
doesn’t light. Fan doesn’t
run.
1. Power switch is bad
2. No input
3. Check if it is short circuit.
Electric source indicator
lights but the fan doesn’t
run or stop. No output.
1. Connect with incorrect electric source. Change the
connection into single 230V and repower on it.
2. The 230V power system is unstable.
3. Power off or power on continuously in a short time and
cause the over-voltage protection.
4. Connecting wire between switch and electrical source is
loose. Fix it again.
5. The 24V relay on main circuit is damaged or no suction.
Check the relay and replace it if it is damaged.
Fan runs but abnormal
indicator doesn’t light. No
arcing
1. There is an auxiliary power supply on IGBT card. If the
indicator isn’t light that shows the auxiliary power
doesn’t work. Check where the fault is.
2. Check whether all connecting wires of inner side the
machines are connected well.
Indicator doesn’t light.
There is no output.
1. Grounding wire is short circuit or doesn’t be connected
with welding plug-ins.
2. The connection is loose between terminal of positive
output & gas output and electrical source.
Welding output is unstable
or can not been controlled
by potentiometer.
1. Potentiometer is bad;
2. Some connecting terminals aren’t fixed well.
The abnormal indicator
lights but no output.
1. Over-current protected. Power off firstly and power on
again.
2. Over-heat protected. I will get normal after waiting for 2
minutes to 3 minutes.
3. It might be the malfunction of inverter circuit. Plug out
the power supply plug of main transformer on igbt card.
Power on again.
4. Feedback circuit is opening.
Welding current is low and
the current adjustment is
out of control.
1 The second wire is too long or too small.
2 It is in the status of remote controlling if there is any
remote control equipment.
3 Amperage adjustment (potentiometer) is bad.
Additional:
When the insulation resistance is less than 0.5 MΩ that
shows welding machine is wetted. Dry it by suitable means.

Safety Warning
unless specially required, all maintenance work should be going
under the condition that all power supply are off. If not, it may
cause a grave accident such as electric shock and burn.
Periodic maintenance is to check and repair the interior of the welder, including the
examination and cleaning of the interior of the power supply.
Usually, the splash and oil dust can be stacked in half a year. It should be
cleaned every three months. If it works in a bad working environment, it should
be clean everyday with dry compressed air. The compressed air should be in
suitable value or it will damage small parts in machines.
Check the all connections inner side of machine regularly. Be sure they are
correct and well connected.
When it has been powered on, do not close to the charged components (such as
fan) by your hands, hair, and tools.
Avoid the water enter into inner side of machine. Please dry it if it is wetted and
test the insulation status. It can work only all parameters are normal.
If it won’t be used for a long time, Please pack it and put it in a dry condition.
11. DISPOSAL
At the end of the machine’s working life, or when it can no longer be repaired,
ensure that it is disposed of according to national regulations.
– Contact your local authority for details of collection schemes in your area.
In all circumstances:
• Do not dispose of power tools with domestic waste.
• Do not incinerate.
• Do not dispose of WEEE* as unsorted municipal waste.

12. SYMBOLS

13. EXPLODED VIEW

No.
Description
No.
Description
1
Handle
17
heat sink for rectifier tube
2
Housing
18
heat sink for IGBT
3
front panel
19
blinder
4
quick connection
20
heat sink for rectifier tube
5
quick connection
21
heat sink for IGBT
6
digital display
22
base plate
7
over-load indicator
23
cooling fan
8
power indicator
24
power switch
9
potentiometer
25
power source cable
10
power source transformer
26
fan cover
11
relay
27
rubber foot
12
dirving transformer
28
rectifier tube
13
main transformer
29
Rectifier module
14
rectifier tube
30
IGBT
15
IGBT
31
electrolytic capacitor
16
control PCB
32
main PCB
CANNON TOOLS LTD
Add: 20 station road, Rowley Regis, west midlands,B65 0JU.U.K.
Made in China