iWeld TIG200P AC Assembly instructions
WELDING MACHINE IWLED – TIG200P AC /DC
32
WELDING MACHINE IWLED – TIG200P AC /DC
1
WELDING MACHINE IWLED – TIG200P AC /DC
2
Thank you and congratulation for your purchasing our product, the high quality and high
technology MMA Welding machine, which easy to use, supply constant current and arc, light
weight, easy to move and install. We are please to welcome your suggestion, comments to improve
our product to maximize our customers satisfaction.
WELDING MACHINE IWLED – TIG200P AC /DC
31
/ Faults
/ Resolvable Methods
If abnormal indicator is not lit ,
a. Maybe transformer of middle board is damage
,measure inductance volume and Q volume of main
transformer by inductance bridge(L=0.9-1.6mH Q>35)
.If volume is too low ,please replace it .
b. Maybe secondary rectifier tube of transformer is
damaged ,find out faults and replace rectifier tube with
same model .
4.
Maybe feedback circuit is broken .
.
When welding aluminum, can not break oxidized film
1.
Wrong welding value
2. Pulse / Pulse duty too low
3. MOSFET
Twice inverter MOSFET broken
8.
Stick is burnt out
Pulse Pulse duty is too
high, reduce it.
WELDING MACHINE IWLED – TIG200P AC /DC
30
/
Faults
/
Resolvable Methods
().
HF arc-striking (
VN-07 ) :
If abnormal indicator is still lit ,close machine and pull
up supply power plug of HF arc-striking power source
(which is near the VN-07 insert of fan ),then open
machine :
a.
MOS
If abnormal indicator is still lit ,some of fieldistor of
MOS board is damaged ,find out and replace it with
same model .
b.
HF arc-striking
If abnormal indicator is not lit , rise transformer of HF
arc-striking circuit is damaged ,replace it .
().
a.
Q
(L=.-
.mH Q>)
b.
WELDING MACHINE IWLED – TIG200P AC /DC
3
/Content
/Warranty conditions 4
/Technical Data 5
/Machine Descriptions 6
/Safety 7-9
/ Front Panel Function And Instruction 10-12
Installment 13-14
Operation 15-17
Attached Relative value for electrode and current 18
Maintenance 18-23
Check Fault TIG 200P AC/DC 23
WELDING MACHINE IWLED – TIG200P AC /DC
4
/Warranty conditions
.
. ,, , ,
.
.
.
.
.
,
.Any unauthorized modification and dismantle on the machine or part of the machines will result
in void of warranty.
.All integrated accessories including wear and tear parts are not under warranty such as TIG
Torches. Earth clamp, Power cables and etc.
3. Our company will not be liable for all consequential losses and damaged.
4. Any damage and loss caused by misused and any usage not in accordance to the scope of usage
Mentioned in the manual will not be under warranty condition.
5. Any damage to the machine caused by careless and improper usage by the user will not be under
warranty.
6. Any damage and loss caused by incompatible input power electric will not be under warranty.
7. Any damage to the machine caused by negligence of maintenance and proper care described in
user manual will result in void of warranty.
WELDING MACHINE IWLED – TIG200P AC /DC
29
/
Faults
/
Resolvable Methods
Arc-striking tip is oxidized or too far ,give a good
polish to it or change it is about 1 mm between arc-
striking tip
. (-)
Switch(sticking/argon-arc welding) is
damaged ,replace it .
. HF arc-striking
Some of HF arc-striking circuit components is damage
,find out and replace it .
.
Abnormal indicator is lit but there is no welding output
.
.
Maybe it is overheated protection ,please close machine
first ,then open the machine again after abnormal
indicator is out .
.
2-3 (-
)
Maybe it is overheated protection ,wait for 2-3 minutes
(argon-arc welding does not has overheated protection
function .)
.
MOS (VH-07 )
Maybe inverter circuit is in fault ,please pull up the
supply power plug of main transformer which is on
MOS board (VH-07 insert which is near the fan)then
open the machine again.
WELDING MACHINE IWLED – TIG200P AC /DC
28
/ Faults
/ Resolvable Methods
There is a green indicator in auxiliary power of MOS
board ,if it is not on ,auxiliary power is out of work
.Check fault spot and connect with seller.
.
Check if connectors is poor contact .
.
Check control circuit and find out reasons or connect
with seller.
.
Check if control cable of torch is broken.
. HFarc-striking
Abnormal indicator isnot on ,sound of HF arc-striking
can beheard ,but there is no welding output . there is no
welding output .
.
Check if torch cable is broken .
.
Check if grounding cable is broken or not connected to
welding piece .
.
Output terminal of positive electrode or torch electrify
is loosed from inter-machine . inter-machine .
.
HF arc-striking
Abnormal indicator is not lit ,sound of HF arc-striking
can not be heard ,wiping welding can strike arc .
. arc-striking
Primary cable of arc-striking transformer is not
connected to power panel firmly ,tighten it again.
. arc-striking
.
arc-striking
WELDING MACHINE IWLED – TIG200P AC /DC
5
1. / Technical Data
Mode
l
TIG 200P AC/DC
Parameters
Power voltage
/
Frequency (HZ)
1ph AC220V±15%
/
50/60
Output current (A)
TIG 10
-
200
MMA 10
-
160
No
-
load voltage TIG/MMA (V)
60/79
Rated duty voltage (V)
TIG 18
MMA 26
Input current max (A)/K
VA
31/6.8
Gas
per
flow
(s)
0
-
2
Start current (A)
10
-
200
Welding current (A)
10
-
200
Background (A)
10
-
200
Pulse frequency（Hz）
0.5
-
5
Pulse width（%）
10
-
90
AC Balance（%）
20
-
80
Down slope time(s) [4T]
0
-
10
Gas post
flow(s)
1
-
10.
Remote control
(Option)
Y
es
2T/4T
Y
es
Arc initiation way
HF
Efficient（%）
85
Duty cycle（%）
40
Power factor
0.85
Insulation grading
F
Protection grading
IP21S
Weight（kg）
20.3
Dimensions（mm）
330×500×368
Max. thickness（mm）
10
Electrode diameter
(mm)
2.6
-
4.0
Dimensions Carton（mm）
4
30
x
6
4
0 x 4
30
Gross Weight（kg）
26
Power cable
3G*2.5mm2 L;2.5
WELDING MACHINE IWLED – TIG200P AC /DC
6
./Machine Descriptions
/Tig torch /Electrode Holder
/
Earth Clamp
WELDING MACHINE IWLED – TIG200P AC /DC
27
/
Faults
/
Resolvable Methods
.
2-3
Open and close power switch constantly in short time
cause machine is in protection circuit Close machine 2-
3 minutes then open it again .
.24
Main circuit 24v relay of power panel is not close or
hasdamaged .Check 24v power source and relay. If
relay has damaged replace it with same model
.
3.
HF
Fan is working ,indicator is not lit and sound of HF
arc-striking can not be heard ,wiping welding can not
strike arc.
. VH-07
DC308V
MOS
(.)
(.) ( 470UF/450V)
Positive and negative electrodes of VH-07 insert
component voltage should be about DC308v from
power panel to MOS board .
(1.) If circuit is broken and silicon bridge is poor
contact .
(2.) If some of four high electrolytic(about
470UF/450V) of power panel capacitor is
leaking .
.
MOS
WELDING MACHINE IWLED – TIG200P AC /DC
26
10. / CHECK FAULT
/ Faults
/ Resolvable Methods
.
Power indicator is not lit ,fan does not work and no
welding output
.
Power switch is out of work .
. ()
Check if electrify wire net (which is connected to input
cable )is in work. .
3.
Check if input cable is out of circuit .
.
Power indicator is lit ,fan does not work or revolve
several circles ,no welding output.
.
Maybe connect wrong to 380v power cause machine is
in protection circuit ,connect to 220v power and
operate machine again .
.
( )
2-3
220v power is not stable,(input cable is too slender)or
input cable is connected to electrify wire net cause
machine is in protection circuit .Add the section of
cable and tighten input connector firmly .Close
machine 2-3 minutes then open it again.
.
Cable is loosed from switch to power panel ,tighten
them again .
WELDING MACHINE IWLED – TIG200P AC /DC
7
3. / SAFETY
Welding is dangerous, and may cause damage to you and others, so take good protection
when welding. For details, please refer to the operator safety guidelines in conformity with the
accident prevention requirements of the manufacturer.
-
-
Professional training is needed before operating the
machine.
- Use labor protection welding supplies authorized by
national security supervision department.
-Cut off power before maintenance or repair.
-
- /
-
-
Electric shock—may lead to serious injury or even
death.
- Install earthing device according to the application criteria.
- Never touch the live parts when skin bared or wearing wet
gloves/clothes.
- Make sure that you are insulated from the ground and
workpiece.
- Make sure that your working position is safe.
-
-
Smoke& gas—may be harmful to health.
- Keep the head away smoke and gas to avoid inhalation of
exhaust gas from welding.
- Keep the working environment in good ventilation with
exhaust or ventilation equipment when welding.
WELDING MACHINE IWLED – TIG200P AC /DC
8
Arc
-
-
Arc radiation—may damage eyes or burn skin.
- Wear Suitable welding masks and protective clothing to
protect your eyes and body.
- Use suitable masks or screens to protect spectators from
harm.
-
-
-
-
Improper operation may cause fire or explosion.
-
Welding sparks may result in a fire, so please make sure
no combustible materials nearby and pay attention to fire
safety.
- Have a fire extinguisher nearby, and have a trained person
to use it.
- Airtight container welding is forbidden
- Pipe thaw with this machine is forbidden.
-
-
Hot workpiece may cause severe scalding.
- Don’t contact hot workpiece with bare hands.
- Cooling is needed during continuous use of the welding
torch.
WELDING MACHINE IWLED – TIG200P AC /DC
25
It has something with factors as following:
1.
Electric wire net voltage has been changed .
2.
There is harmful interference from electric wire net or other equipment .
E. / Stick is burnt out：
：：
：
Pulse
Pulse duty is too high, which lead to over heat of stick.
F. / When welding aluminum, can not
break oxidized film：
：：
：
1. / Wrong welding value
2. / Pulse duty too low
3. MOSFET / Twice inverter MOSFET broken
WELDING MACHINE IWLED – TIG200P AC /DC
24
5L/min
Check if the flow meter is opened and has enough flow .User can choose different flow
according to
welding current in order to save gas .But too small flow maybe cause black welding spot
because preventive gas is too short to cover welding spot .We suggest that flow of argon must
be kept min 5L/min.
3.
Check if torch is in block .
4.
If gas circuit is not air-tight or gas is not pure can lower welding quality .
5.
If air is flowing powerfully in welding environment ,that can lower welding quality .
B. / Arc-striking is difficult and easy to pause
1.
Make sure quality of tungsten electrode is high .
2. strike arc
Grind end of the tungsten electrode to taper .If tungsten electrode is not grinded ,that will be
difficult to strike arc and cause unstable arc .
C. / Output current not to rated value：
：：
：
When power voltage departs from the rated value, it will make the output current not matched
with rated value; When voltage is lower than rated value, the max output may lower than rated
value.
D. /Current is not stabilizing when machine is been
operating：
：：
：
WELDING MACHINE IWLED – TIG200P AC /DC
9
-
Magnetic fields affect cardiac pacemaker.
-Pacemaker users should be away from the welding spot
before medical consultation.
-
- ,,,
Moving parts may lead to personal injury.
- Keep yourself away from moving parts such as fan.
- All doors, panels, covers and other protective devices
should be closed and in place.
-
-
Machine fault—seek professional help when
encountering any difficulties.
- Consult the relevant contents of this manual If you
encounter any difficulties in installation and operation.
- Contact the service center of your supplier to seek
professional help If you still can not fully understand after
reading the manual or still can not solve the problem
according to the manual.
WELDING MACHINE IWLED – TIG200P AC /DC
10
4
.- / FRONT PANEL- BACK PANEL FUNCTION AND INSTRUCTION
/ FRONT SIDE
Check Welding Machine connecting point and connect Welding Torch ,Return Cable,
etcaccrding to its symbols as details as follows.
1. POWER SWITCH /-
/Use for turn on/off machine
2. ABNORMAL INDICATOR/
/LED high temperature alarm
3. CUREENT METER/
/Current display
4. TIG/MMA SWITCH/ TIG/MMA
TIG/MMA/Switch to choose function TIG/MMA
WELDING MACHINE IWLED – TIG200P AC /DC
23
There is a grounding screw behind welding machine, there is grounding marker on it
Mantle must be grounded reliable with cable which section is over 6 square millimeter I
order to prevent from static electricity and leaking.
5)
ON
If welding time is exceeded duty cycle limited, welding machine will stop working for
protection. Because machine is overheated, temperature control switch is on ON position
and the indicator light is red. In this situation, you dont have to pull the plug, in order to let
the fan cool the machine. When the indicator light is off, and the temperature goes down to
the standard range, it can weld again.
/ QUESTIONS TO BE RUN INTO DURING WELDING
Fittings, welding materials, environment factor, supply powers maybe have something to do with
welding. User must try to improve welding environment.
A. / Black welding spot
Welding spot is not prevented from oxidizing .User may check as following :：
1.
0.5Mpa
Make sure the valve of argon cylinder is opened and its pressure is enough. argon cylinder
must be filled up to enough pressure again if pressure of cylinder is below 0.5Mpa .
2.
WELDING MACHINE IWLED – TIG200P AC /DC
22
.
welding machine is powerful machine, when it is being operated, it generated by high
currents, and natural wind will not satisfy machine cool demands. So there is a fan in inter-
machine to cool down machine. Make sure the intake is not in block or covered, it is 0.3
meter from welding machine to objects of environment. User should make sure the working
area is adequately ventilated. It is important for the performance and the longevity of the
machine.
2) / Do not over load！
！！
！
()
The operator should remember to watch the max duty current (Response to the selected
duty cycle). Keep welding current is not exceed max duty cycle current. Over-load current
will damage and burn up machine.
3) / No over voltage！
！！
！
Power voltage can be found in diagram of main technical data. Automatic compensation
circuit of voltage will assure that welding current keep in allowable arrangement. If power
voltage is exceeding allowance arrangement limited, it is damaged to components of
machine. The operator should understand the situation and take preventive measures.
4)
WELDING MACHINE IWLED – TIG200P AC /DC
11
5.
AC/DC SWITCH/ AC/DC
/Switch for choose current AC/DC
AC , /AC function for aluminum, magnesium
DC , ,,, , /DC function for steel,
stainless, copper, brass, silver, titanium
6.
2T/4T SWITCH/ 2T/4T
/ Switch for choose function 2T/4T
T /T : hold the switch to start, release to stop
4T /T : press and release to start,
press and release again to stop
7.
PLUSE ON/OFF SWITCH/ / PLUSE
- PLUSE /Switch for turn on,off Pulse system
8.
REMOTE SWITCH/
/ Switch for choose
mode Normal,Remote
9.
START CUREENT ADJUST (4T)/ (4T)
4T /Function to support when start welding
(only for 4T system)
10.
WELDING CUREENT ADJUST/
- -A /Knob for
adjust welding amp.
11.
BACKGROUND CUREENT ADJUST/
PULSE -A /Knob for adjust
welding amp (for pulse system, 10A-200A)
12.
CUREENT DOWN SLOPE TIME ADJUST/ DOWN SLOPE
/Knob for adjust time for delay
welding amp
13.
POST FLOW/
TIG
TIG / Knob for adjust gas flow after TIG welding
14.
AC BALANCE/
/ Knob for help cleaning
oxide surface ( for aluminum only )
WELDING MACHINE IWLED – TIG200P AC /DC
12
15.
PULSE WIDTH/
Pulse
PULSE / Knob for help
Pulse system for height and depth ( Only focus in current )
16.
PULSE FREQUENCY/
TIG / Knob for adjust frequency
17.
GAS PREFLOW/ TIG
TIG / Knob for adjust gas preflow
18.
WELDING HANDLE/
TIG / Connector for welding handle
19.
WELDING TORCH TIG/
20.
TORCH SWITCH/ TIG
21.
FOOT SWITCH/
22.
EARTH CONNECTION/
/ Connector for ground
/ BACK SIDE
WELDING MACHINE IWLED – TIG200P AC /DC
21
/ NOTES OR PREVENTIVE MEASURES
1. /Environment
1.1 %
The machine can perform in environment where conditions are dry with a dampness
lever of max 90%.
1.2
Ambient temperature is between 10 to 40 degrees centigrade.
1.3
Avoid welding in sunshine or drippings.
1.4
Do not use the machine in environment where condition is polluted with conductive
dust on the air or corrosiveness gas on the air.
1.5
Avoid gas welding in the environment of strong airflow.
2. / Safety norms
Welding machine has installed protection circuit of over voltage and current and heat. When
voltage and output current and temperature of machine are exceeding the rate standard, welding
machine will stop working automatically. Because that will be damage to welding machine,
user must pay attention as following.
1) / The working area is adequately
ventilated！
！！
！
WELDING MACHINE IWLED – TIG200P AC /DC
20
Pressure of compressed air must be inside the reasonable arrangement in order to prevent
damaging to small components of inter-machine.
.
(
) Check inter circuit of welding machine regularly and make sure the cable Circuit is
connected correctly and connectors are connected tightly (especially insert connector and
components). If scale and loose arefound, please give a good polish to them, then connect them
again tightly.
.
Avoid water and steam enter into inter-machine, if them enter into machine, please dry inter-
machine then check insulation of machine.
.
If welding machine will not be operated long time, it must be put into packing box and store in dry
environment.
/BEFORE CHECKING
/WARNING
Blind experiment and careless repair may lead to more problem of the machine that will make formal check and
repair more difficult. When the machine is electrified, the naked parts contain life-threatening voltage. Any
direct and indirect touch will cause electric shock, and severe electric shock will lead to death.
:
Notice: In the period
of guarantee maintenance, if user makes wrong check and repair for the induction power without permission,
the free maintenance guarantee offered by the supplier will be invalid.
WELDING MACHINE IWLED – TIG200P AC /DC
13
23.FAN/
24.
POWER CABLE /
25. NAME PLATE /
26. GROUND /
27.GAS IN /
/Indicator function
.
-
Overheat protection indicator: When machine works for a continuous, long time and at big current,
in order to prevent component from burning out, the over heat protection function is set. When the
indicator is lit, work must be stopped, but no need to turn off the machine. After 2-3 minutes it will
resume.
.
Abnormal indicator: The indicator is lit when there is anything abnormal inside the machine. When
it is lit, please turn off the power switch and restart the machine after the indicator is off. It can
continue to work if machine gets normal. If indication occurs again, please have it checked by
professionals or manufacturer.
WELDING MACHINE IWLED – TIG200P AC /DC
14
./ INSTALLMENT
± 15%
Equipment with power voltage compensation equipment. When power voltage moves
between±15% of rated voltage, it still can work normally. When use long cable, in order to prevent
voltage form going down, bigger section cable is suggested. If cable is too long, it may affect the
performance of the power system. So we suggest you to use configured length.
1.
Make sure intake of the machine not blocked or covered, lest cooling system could not work.
2. ,
Make good connection of shielded gas source. Gas supply passage includes cylinder, argon
decompress flow meter and pipe. Connecting part of pipe should used hoop or other things
to fasten, lest argon leaks out and air gets in.
3. Connector +
Put the loop cable fastening plug to the fastening socket at + polarity of the panel, turn
clock wise fasten, clamp at the other side clamps the work piece.
4. Connector -
Put the tig torch fastening plug to the fastening socket at "-" polarity of the panel, turn
clock wise fasten, torch at the other side use to weld the electrode
5.
WELDING MACHINE IWLED – TIG200P AC /DC
19
. Attached :Relative value for electrode and current
Thickess
(mm)
Tungsten electrode
diameter
DC
Welding Current DC
(Amp)
Nozzle
(No.)
Argon flow (L/min)
(min)
1.0
2.0
3.0
4.0
5.0
1.6
1.6
1.6-2.4
2.4
2.4-3.2
15
-
80
70-150
150-250
150-250
250-400
4.0
4.0-6.0
6.0
6.0-8.0
6.0-8.0
5
-
6
5-6
5-6
6-7
7-8
1.6
2.0
2.4
3.0
3.2
/Warning:
It is forbidden to pull out or put in the cable or connector during the process of welding, which
will threat life safety and damage the machine.
/CAUTZION
：
：：
：
Before Maintenance and checking, power must be turned off, and before Opening the housing,
make sure the power plug is pulled off.
./MAINTENANCE
.
Remove dust by dry and clean compressed air regularly, if welding machine is operating in
environment where is polluted with smokes and pollution air, the machine need remove dust
everyday.
.
WELDING MACHINE IWLED – TIG200P AC /DC
18
When current goes from work piece to stick, it is down side current. At this moment, it can clean
oxide at the surface of work force, which
Improves welding result. But the stick may be burnt out because of heat, the knob is for
adjusting time ratio of positive and reversed current. When at O position, the ratio is 50% to
50%; at 5 position, ratio is 80%, and at -5 position, ratio is 20%; Turn towards clockwise,
up side current gets short, down side current gets long. When turn counter-clockwise, it is
opposite.
3. -
Operating as the6-8 step above.
/Notice:
（1） A %
A 50%
big current should use small pulse duty; above 200A, use pulse duty below 30%.At small
current, usebig pulse duty; below 100A, use pulse duty above 50%.
（2） AC TIG ARC A
When at AC TIG welding, the smallest current is not easy for arc initiation, please set the current
to 20A.
MMA/ MMA WELDING
. Down AC/DC
Put the welding switch to Down position, at this time, AC/DC switch are out of work, only welding
current knob can use.
.
Set the welding current according to the work piece thickness.
WELDING MACHINE IWLED – TIG200P AC /DC
15
According to input voltage grade, connect power cable with power supply box of relevant
voltage grade. Make sure so mistake and make sure the voltage difference among
permission range. After the above job, installment is finished and welding is available.
WELDING MACHINE IWLED – TIG200P AC /DC
16
./OPERATION
DC TIG / DC TIG WELIDNG
1.
Turn on power switch, fan begins to wheel.
2. (
) Open argon switch, and adjust gas flow to rated standard.( refer to flow table)
3. TIG WELDING
Put the welding switch to upper position is TIG WELDING.
4. DC DC ARC
When put the switch to DC position, it is DC arc welding which can be for stainless steel,
iron, copper and other metals.
5. OFF
ON
Set handwork/pedal switch according to needs. Put the switch to OFF position, current is
adjusted by panel knob. Put the switch to ON position, current is adjusted by pedal.
6. HF
Press torch switch and electromagnetic valve starts, you will hear the sound of Electricity-
releasing HF sparkles and at the same time, argon gets out the torch.
7. - .
HF
keep 2-4mm space between tungsten pole and work piece, press torch control switch, between
electrode and work piece HF electricity is released; After arc initiation, HF sparkle disappears
soon and can start to work.
8. 2T 4T 2T
4T
WELDING MACHINE IWLED – TIG200P AC /DC
17
In spot welding or continuous welding you can choose 2T or 4T state. Switching on 2T state
the starting arc current does not work, only welding current can be adjusted. switching on 4T
Pressing the torch switch the starting arc current can be adjusted, and releasing the torch switch
the welding current can be adjusted, and pressing the torch switch the welding current begin
falling-off slowly until the welding current to be minimum, and then releasing the torch switch
the welding current disappear, the moment gas start delay which protect welding surface,
welding end.
9.
In metals lamella and small scaled steels welding, you need to switch on pulse state.
AC TIG / AC TIG WELDING
1. AC AC
When put the switch to AC position, it is AC arc welding, which can be for aluminum
materials.
2. AC arc
O
% % 5 % -5
%
Pulse duty knob: During AC arc welding, current transfers between up side and down side
continuously. When current goes from tungsten stick to work piece, it is positive current time. At
this moment, stick heats slightly and quantity of heat is concentrated, which is good for welding.
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