Download TIG160S/180S/200S TIG180A/250A/400A Instruction Manual

OWNER`S MANUAL
TIG160S/180S/200S TIG180A/250A/400A
INSTRUCTION MANUAL
PRODUCTS INTRODUCE
Tig160S/180S/200S are single process argon-arc welding.
Tig180A/250A/400A are two processes of sticking and argon-arc welding(choose it by
function switch).
As sticking , outer characteristics of welding machine are continue current and arc drive
controlling .It is constant current characteristics when arc voltage is normal ,it makes that welding
current will not be changed with arc length .Current will become higher and higher with arc
voltage down-slope ,when arc voltage is too low ,it makes that arc length will return into normal
range (it is arc driving). When arc voltage is too low to support arc, voltage will down slope
immediately in order to protect from splashing which is caused by short circuit .
Arc welding characteristic is continue current ,welding current will not change arc length ,so
current is very stabilizing .When electrode circuit is short ,current will declined to 0 automatically
in order to protect tungsten ad work piece .
TIG160S/180S/200S/180A/250A/400A MAIN TECHNICAL DATA
Model
TIG160S
TIG180S
TIG200S
TIG180A
TIG250A
TIG400A
Item
Power
voltage(v)
AC200v±15%
50/60
AC200v±15%
50/60
AC200v±15%
50/60
AC200v±15%
50/60
Three phase
AC380v±15%,
50/60
Three phase
AC380v±15%,
50/60
Input
current(A)
160
180
200
180
250
400
No-load
voltage(V)
42
55
42
55
75
82
Output current
adjustment
range (A)
10~160
10~180
10~200
10~180
10~250
25~400
Rate
work
voltage(V)
16.4
17
18
17
20
26
Driving
adjustment
range (A)
--
--
--
--
0~100
0~100
Duty cycle
60%
60%
60%
60%
60%
60%
loss
35
40
35
40
60
100
Pilot arc model
HF
HF
HF
HF
HF
HF
Efficiency
85%
85%
85%
85%
85%
85%
Power factor
0.93
0.93
0.93
0.93
0.93
0.93
Insulation class
B
B
B
B
B
B
Protection class
IP21
IP21
IP21
IP21
IP21
IP21
Weight(kg)
8
9
9
8
13
22
Overall
Dimensions
371x155x287
371x152x287
371x155x287
371x152x290
423x205x357
473x330x360
No-load
(W)
INSTALLATION
When use longer cable ,please choose cable of bigger section in order to protect voltage from
stepping down .If torch cable is too long ,it maybe effect to function of arc-striking and other
function of system .So we suggest that user must use coordinated length which is recommended
by manufacturer .
Input Cable Connection
1. Every welding machine has disposed a once power cable, power cable must be connected
to corresponding voltage in compliance with input voltage .If single phase 220v DC
power cable is connected to 380v AC power cable by carelessness ,it makes power is in
over-voltage protection position . Please turn power supply off first ,then connect to
power cable of 220v and open machine again .
Input voltage of TIG160/180/200 is single phase 220v .
Input voltage of TIG250/400 is three phase 380v .
2. Make sure that power cable is connected to power switch or connector firmly and
prevent from oxidizing .
Check if the power voltage is inside waved range .
Output Cable Connection
1. Argon-arc welding:TIG160S/180S/200S
1) Connect to gas source : Make sure that argon tube is connected to copper tip tightly .Supply
gas circuit must includes gas cylinder ,argon flow meter and gas tubes .Tubes must be tied
firmly by laryngeal hoop or something else in order that gas is leaked and air come into .
2) Make sure that mantle has been grounded by cable whose section is min 6 square millimeter
in order to prevent static electricity and leaking .The cable is connected to the ground plug pin
behind machine .
3) Connect welding torch according to diagram .Electrify integration connector of welding torch
and air plug are installed to coordinated connectors then tighten firmly .
4) Mobile plug of return circuit cable is inserted in mobile socket of positive electrode then
tightened it clockwise rotation firmly , another terminal of grounding pincer clamps work
piece .
2.Sticking And
(TIG180A/250)
Argon-arc
Welding
Two
Processes
Machine
When use argon-arc welding ,please connect as aforementioned .When use sticking ,pay attention
as following:
1) Every machine has a pair of mobile plugs ,cable of welding handle is connected to black
mobile plug ,another terminal of grounding pincer is connected to red mobile plug ,then they
must be tightened .
Make sure secondary cables (handle cable and grounding cable) are connected to mobile plug
reliably .
2) Insert the mobile plug in mobile socket , then tighten it .Or the plug and socket will be burned
up if current is too high or working time is too long .
Pay attention the electrode of connection cable ,There are two methods of connection that are
positive connection and negative connection .Positive connection is that work piece is
connected to positive electricity and torch handle is connected to negative electrode ,
negative connection is that work piece is connected to negative electricity and torch handle is
connected to positive electrode .
OPERATION
TIG160S/200S Control Panel Description
1. Argon-arc Welding
1) Make sure the power switch is on “on” position ,and the indicator will be lit .
2) Open the valve of argon cylinder ,adjust the volume of flow meter and make it is
adequate to welding .
3) Inter axial-flow fan begins to work ,press the control knob of torch ,the electromagnetic
valve will start ,user can hear sound of HF arc-striking ,at the same time torch tip will
flow out argon .
4) Knob of arc-striking push is use to adjust welding function ,specially in low current
arrange ,that is cooperated with knob of welding current adjustment ,they may adjust
current of arc-striking and be out of control of knob of welding current adjustment .So
machine can grain powerful energy and push current can achieve effect that may imitate
DC welder revolving .
5) It is 2-4 mm from welding tungsten electrode to work piece ,press control knob of
torch ,burn and strike arc , sound of HF arc-striking will be diminished .The welding
machine can be operated now .
2. Sticking Description
1)
2)
3)
4)
Open the power switch of front control panel ,fan starts to working .
Make sure the function switch is on “down” position .
Set the welding current is adequate to thickness of work piece .
Adjust welding characteristic by drive knob (TIG250/400) .
NOTE: Do not touch any cable and connector when the machine is working ,it will damage to
health of people and machine .
Stainless steel sheet tungsten sticking data (for reference only)
Thickness
(mm)
Connection
model
Tungsten
electrode
diameter(mm)
Wire
diameter
(mm)
Current
type
Welding
current
(A)
Argon
flow
(L/min)
Welding
speed
(cm/min)
1.0
1.2
1.5
Connect
directly
2
2
2
1.6
1.6
1.6
DC
positive
connect
7~28
15
5~19
3~4
3~4
3~4
12~47
25
8~32
Titanium and titaniferous-alloy tungsten sticking data (for reference only)
Thickness
Slope
Number
Tungsten
Wire
Welding
Air flow
Tip inter-
(mm)
model
of
electrode
diameter
current
(L/min)
diameter
welding
diameter
layer
0.5
I shape
1
1.5
1.0
30~50
8~10
6~8
14~16
10
1.0
1
1.0
1.0~2.0
40~60
8~10
6~8
14~16
10
1.5
1
2.0
1.0~2.0
60~80
10~12
8~10
14~16
10~12
2.0
1
2.0~3.0
1.0~2.0
80~110
12~14
10~12
16~20
12~14
2.5
1
2.0~3.0
2.0
110~120
12~14
10~12
16~20
12~14
3.0
Y shape
1~2
3.0
2.0~3.0
120~140
12~14
10~12
16~20
12~14
4.0
2
3.0~4.0
2.0~3.0
130~150
1212~
12~14
20~25
18~20
5.0
2~3
4.0
3.0
130~150
14~14
12~14
20~25
18~20
6.0
2~3
4.0
3.0~4.0
140~180
12~14
12~14
25~28
18~20
7.0
2~3
4.0
3.0~4.0
140~180
12~14
12~14
25~28
20~22
8.0
2~4
4.0
3.0~4.0
140~180
12~14
12~14
25~28
20~22
10
Double
4~6
4.0
3.0~4.0
160~200
14~16
12~14
25~28
20~22
20
Y shape
12
4.0
4.0
200~240
12~14
10~12
20
18
22
12
4.0
4.0~5.0
230~250
15~18
18~20
18~20
20
25
15~16
4.0
3.0~4.0
200~220
16~18
20~26
26~30
22
30
17~18
4.0
3.0~4.0
200~220
16~18
20~26
26~30
22
Aluminium and aluminium alloy tungsten electrode sticking data (for reference only )
Thickness
Slope
Number of
Tungsten
Wire
Preheat
Welding
(mm)
model
welding
electrode
diameter
temperature
current
layer(positive
diameter
Argon
flow
(L/min)
Tip interdiameter
(mm)
/reversal)
(mm)
50~80
50~80
7~9
8~12
8
8~12
(℃)
1.5
I
1/0
2
1.6~2.0
2
shape
1/0
2~3
2~2.5
---
3
4
5
8
10
12
16
20
Y model
1/0
3
2~3
--
15~180
8~12
8
1~2/1
4
3
--
180~200
10~15
8~12
1~2/1
4
3~4
--
180~240
10~15
8~12
2/1
5
4~5
100
260~320
16~20
10~12
3~4/1~2
5
4~5
100~150
280~340
16~20
14~16
3~4/1~2
5~6
4~5
150~200
300~360
18~22
14~16
4~5/1~2
6
5~6
200~220
340~380
20~24
16~20
4~5/1~2
6
5~6
200~260
360~400
25~30
20~22
16~20
Double
2~3/2~3
6
5~6
200~260
300~380
25~30
16~20
22~25
Y shape
2~3/2~3
6~7
5~6
200~260
360~400
30~35
20~22
Stainless steel impulse tungsten electrode argon-arc welding data
Thickness
(mm)
0.3
0.5
0.8
Current (A)
Sustained time (s)
Impuls
e
cardinal volume
impulse
Cardinal
volume
Impulse
frequency
(Hz)
20~22
55~60
85
5~8
10
10
0.06~0.
08
0.08
0.06
0.06
0.08
8
7
5
Welding speed
(cm/min)
50~60
55~60
80~100
TIG180P/TIG200P/TIG315P(IGBT)
PRODUCTS INSTUCTION
TIG180P/200P/315P are impulse inverter DC argon-arc welding and sticking two processes
machines ,They are new type welding machines ,specially TIG315P is developed by advantaged
electron switch device (IGBT) of 90`s. It has functions as follow:
1) Supply gas beforehand .
2) Current is up slope .
3) Current is down slope .
4) Shut gas off relayed .
5) Control arc- striking automatic .
6) Collect arc .
7) Impulse current frequency .
8) Impulse current empty rate .
9) Impulse cardinal volume etc..
TIG180P/TIG200P/TIG315P(IGBT) MAIN TECHNICAL DATA
Model
TIG315(IGBT)
TIG200P
TIG180P
Input voltage(v)
Three phase
380v±10%,50/60Hz
220v±15%,50/60Hz
380v±10%,50/60Hz
Input current(A)
12.7
20
20
Rate output voltage(v)
22.6
18
17
Rate output current(v)
5-315
10-200
10-180
No-load voltage(v)
54
42
55
Polite arc model
HF
HF
HF
Duty cycle
60%
60%
60%
Cardinal volume
current(A)
5-315
20-180
18-162
Current up-slope time
0-10(S)
--
--
Current down-slope time
0-10(S)
--
--
LF: 0.5-5
MF: 25-250
LF: 0.5-5
MF: 50-200
MF:0-250
10-90(%)
--
--
Primary current(A)
5-315
--
--
Collect arc current(A)
5-315
--
--
Post flow(S)
1-10
--
--
Weight(kg)
35
9
8
540X285X445
423X205X357
347X152X290
Item
Impulse frequency(Hz)
Impulse wide
Dimension(wxdxh)mm
INSTALLATION
1. Connect to gas source : Make sure that argon tube is connected to copper tip tightly .Supply
gas circuit must includes gas cylinder ,argon flow meter and gas tubes .Tubes must be tied
firmly by laryngeal hoop or something else in order that gas is leaked and air come into .
2. Mantle must be grounded reliably by cable whose section is min 6 square millimeter .Make
sure the grounding terminal of power socket is single grounded reliably .
3. Connect torch or welding pincer according diagram ,If user uses sticking ,make sure cable is
connected to torch and mobile plug firmly .The way is that mobile plug should be inserted in
mobile socket of negative electrode then tighten them clockwise rotation .If user uses impulse
argon-arc welding ,make sure electrify integration connector is installed to interface of board
and tightened them clockwise rotation by spanner then insert air plug of torch in coordinated
interface of board and tighten its screw .
4. Insert mobile plug of cable in mobile socket of positive electrode and tighten them clockwise
rotation , ground cable pincer of another extremity holds work piece .
5. Insert power plug in socket of coordinated model .Make sure supply power voltage is AC
220v and its error is inside allowable arrange .
TIG180P/TIG200P/TIG315P(IGBT) OPERATION INTRODUCE
1. Argon-arc Welding Introduce
TIG180P/TIG200P
1) Open power switch of front panel ,at this time indicator of power switch will turn
on ,inter axial-flow fan begins to work .
2) Open argon cylinder valve ,adjust flow and make it is adequate to welding.
3) Make sure the welding change-over switch of front panel is on “top” position(TIG) .
4) If impulse change-over switch is on “down” position that indicate no impulse ,if switch is
on “medium” position that indexes MF impulse(frequency is seen data diagram) ,if
switch is on “top ” position that indicate LF impulse(frequency is seen data
diagram) .User can choose freely according to welding requirement .Choose suitable
impulse frequency by adjust impulse knob .
5) Current can be down-slope by current down-slope time knob ,if current need not be
down-slope ,current down-slope time knob is revolved counter clockwise to end .
6) Make sure crest and volley current (when impulse switch is on “down” position ,there is
no volley current.) are adequate to thickness of work piece .
7) Press control knob of torch , electromagnetic valve is starting and sound of HF
arc-striking can be heard .At the same time argon is flowing out from torch burner .
8) It is 2-4 mm from tungsten electrode to work piece .Once torch knob is pressed and arc is
burned ,sound of arc-striking is extinguished .Welding machine can be operated now .
TIG315P(IGBT)
1. Open power switch ,fan is beginning to work .
2. Open the valve of argon cylinder and adjust the flow .
3. Make sure the welding change-over switch of front panel is on “up” position that is argon-arc
welding(TIG) .
4. If impulse choose switch is on “down” position that indexes no impulse ,if switch is on
“medium” position that indexes HF impulse ,if switch is on “up ” position that indicate LF
impulse .User can choose freely according to welding requirement .Choose suitable impulse
frequency by impulse adjustment knob .
5. Choose suitable welding pattern (2T/4T) :2T is normal impulse argon-arc welding ,4T is all
functions welding .Operation description as following :
1) Adjust arc-striking current ,current up-slope time ,welding current ,cardinal volume
current ,current down-slope time ,collect arc current and supply gas time .
2) It is 2-4 mm from tungsten electrode to work piece .Press switch of torch and burn
arc ,then loose grip .At this time current slopes up to crest current ,user can operate
normally .When work piece is finished welding ,press down hand switch and current
slope down to collect arc current ,loose grip after the concave of welding spot is be
smoothed .
6. Make sure crest and valley current are adequate to thickness of work piece( when impulse
switch is on “down” position ,that is no valley current .)
7. Press control knob of torch , electromagnetic valve is started and sound of HF arc-striking can
be heard .At the same time argon is flowing out from torch burner .
8. It is 2-4 mm from tungsten electrode to work piece .Once torch knob is pressed and arc is
burned ,sound of arc-striking is diminished .Welding machine can be operate .
STICKING DESCRIPTION
1. Open power switch of front panel ,fan is beginning to work .
2. Make sure function switch of front panel is on “down” position that is sticking . Impulse
change-over switch and knob of current down-slope time will not work .
3. Make sure welding current is adequate to thickness of work piece .
QUESTION IS BE RUN INTO IN WELDING
Fittings ,gas ,environment factor ,supply power 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. 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 be low 0.5Mpa .
2. 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 .
6. Empty rate is set too low .
B. Arc-striking is difficult and easy to pause .
1. Make sure quality of tungsten electrode is high .
2. 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. Current is not stabilizing when machine is been operating.
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 .
NOTES OR PREVENTIVE MEASURES
1. Environment
1) The machine can perform in environments where conditions are dry with a
dampness lever of max 90% .
2) Ambient temperature is between –10 and 40 degrees centigrade .
3) Do not place the machine in positions where the air flow through the cooling
air slots is obstructed or limited .
4) Avoid to weld in sun shine or drippings .
5) Do not use the machine in environment where condition is polluted with
conductive dust on the air or corrosiveness gas on the air .
2. Safety norms
Riland welding machine has installed protection circuit of over voltage and current and
heat .When voltage and output current and temperature of machine is exceed 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 !
Riland welding is powerful machine ,when it is being operated ,it generated by
high currents ,natural wind will not satisfy machine cooled demands .So there are
two axial-flow fans in inter-machine to cool down machine .
Make sure two ends of fan and front shutter are 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 very important to machine .
2) Do not over-load !
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 exceed allowable arrangement limited ,it is
damage to components of machine .
4) There is a grounding screw behind welding machine ,there is
grounding marker on it .Mantle must be grounded reliably with cable
which section is over 6 square millimeter in order to prevent from
static electricity and leaking .
5) 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 .
MAINTENANCE
1. 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 .
2. Pressure of compressed air must be inside the reasonable arrangement in order to prevent
damaging to small components of inter-machine .
3. Check inter circuit of welding machine regularly and make sure the cable circuit is connected
correctly and connectors are connected tightly (specially insert connector and components ).
If scale and loose are found ,please give a good polish to them ,then connect them again
tightly .
4. Avoid water and steam enter into inter-machine ,if them enter into machine ,please dry
inter-machine then check insulation of machine (include between connectors and mantle ,
between connectors and connectors )
5. If welding machine will not be operated long time ,it must be put into packing box and store
in dry environment .
THECK FAULT
1. Maintenance or repairs performed by technical assistance centers not authorized by Riland
will immediately render null and void the manufacturer warranty .
2. If user want to operate machine as following ,the operator must be a personnel in a specific
field of electrify and safety .
TIG160S/180S/200S/180A/180P/200P
Faults
Resolvable Methods
1.Power indicator is 1. Power switch is out of work .
not lit ,fan does not 2. Check if electrify wire net (which is connected to input cable )is in
work and no welding
work. .
output
3. Check if input cable is out of circuit .
2.Power indicator is
lit ,fan does not work
or revolve several
circles ,no welding
output
1. Maybe connect wrong to 330v power cause machine is in protection
circuit ,connect to 220v power and operate machine again .
2. 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.
3. Cable is loosed from switch to power panel ,tighten them again .
4. Open and close power switch constantly in short time cause machine is
in protection circuit Close machine 2-3 minutes then open it again .
5. Main circuit 24v relay of power panel is not close or has
damaged .Check 24v power source and relay .If relay has damaged
replace it with same model.
3. Fan is working ,
indicator is not lit and
sound
of
HF
arc-striking can not be
heard ,wiping welding
can not strike arc.
1.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 .
2.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 .
3.Check if connectors is poor contact .
4.Check control circuit and find out reasons or connect with seller.
5.Check if control cable of torch is broken.
4.Abnormal indicator
is not on ,sound of HF
arc-striking can be
heard ,but there is no
welding output .
1. Check if torch cable is broken .
2. Check if grounding cable is broken or not connected to welding piece .
3. Output terminal of positive electrode or torch electrify is loosed from
inter-machine .
5.Abnormal indicator
is not lit ,sound of HF
arc-striking can not be
heard ,wiping welding
can strike arc .
1. Primary cable of arc-striking transformer is not connected to power
panel firmly ,tighten it again.
2. 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 .
3. Switch(sticking/argon-arc welding) is damaged ,replace it .
4. Some of HF arc-striking circuit components is damage ,find out and
replace it .
6.Abnormal indicator
is lit but there is no
welding output .
1. Maybe it is overheated protection ,please close machine first ,then open
the machine again after abnormal indicator is out .
2. Maybe it is overheated protection ,wait for 2-3 minutes (argon-arc
welding does not has overheated protection function .)
3. 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.
(1) 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. If abnormal indicator is still lit ,some of fieldistor of MOS
board is damaged ,find out and replace it with same model .
b. If abnormal indicator is not lit , rise transformer of HF
arc-striking circuit is damaged ,replace it .
(2) 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 .
7.Output current is not
stabilizing or out of
potentiometer control
and
sometime
is
high ,sometime is low .
1. 1K potentiometer is damage ,replace it .
2. All kinds of connectors are poor contact ,specially inserts etc. ,please
check it .
8.Sticking spatter is
much and
caustic
electrode
of
is
1.Electrode is connected wrong ,exchange grounding cable and handle
cable .
difficult .
TIG250/400
Faults
Resolvable Methods
1.Fan does not work
and numerical screen is
not indicating , there is
no welding output .
1. Make sure air switch is closed .
2. Make sure electrify wire net of output cable can supply power .
3. Some of heat-variable resistors (four) of power panel is damaged ,when
it happen ,general DC24v relay is open or connectors is poor contact .
4. Power panel (bottom board )is damaged ,DC537v voltage can be
output .
(1) Silicon bridge is broken or connector of silicon bridge is poor
contact .
(2) Power panel has been burned up .
(3) Check contact and insert cable from air switch to power panel are
poor contact ,check contact and insert cable from power panel to
MOS board are connected reliably .
5. Auxiliary power of control panel is in fault .
2.Fan works ,abnormal
indicator
is
not
lit ,there is no sound of
HF arc-striking ,wiping
arc welding can not
strike arc.
1. Check if all kinds of cables of inter-machine are poor contact .
2. There is some fault in control panel ,find out reason and connect with
seller .
3. Control cable of torch is broken .
3.Abnormal indicator
is not lit ,sound of HF
arc-striking can be
heard ,there is no
welding output .
1. Torch cable is broken .
2. Grounding cable is broken or not connected to welding piece.
3. Positive electrode terminal or torch electrify terminal is loosed from
inter-machine .
4.Abnormal indicator
is not lit ,there is no
sound
of
HF
arc-striking
,wipe
welding can strike arc.
1. Primary cable of arc-striking transformer is not connected to
arc-striking panel reliably ,tighten it again .
2. 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 .
3. Switch(sticking/argon-arc welding) is damaged ,replace it .
4. Some of HF arc-striking circuit components is damage ,find out and
replace it .
5.Abnormal indicator
is lit and there is no
welding output .
1. Maybe it is overheated protection ,please close machine first ,then open
the machine again after abnormal indicator is not lit .
2. Maybe it is overheated protection ,wait for 2-3 minutes (argon-arc
welding does not has overheated protection function .)
3. Maybe inverter circuit is in fault ,please pull up the supply power plug
(VH-07 insert which is near the fan) near the transformer which is on
MOS board then open the machine again.
(1) If abnormal indicator is still lit ,close machine and pull
up supply power plug of HF arc-striking power source
(which is near the VH-07 insert of fan ),then open machine :
a. If abnormal indicator is still lit ,some of fieldistor
of MOS board is damaged ,find out and replace it
with same model .
b.
If abnormal indicator is not lit , up-slope
transformer of HF arc-striking circuit is
damaged ,replace it .
(2) 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.
Primary inductance and Q volume of TIG250 main
transformer L=0.9-1.6mH Q>35.
Primary inductance and Q volume of TIG400 main
transformer L=1.2-2.0mH Q>35 .
b. Maybe secondary rectifier tube of transformer is
damaged ,find out and replace rectifier tube with
same model .
4. Maybe feedback circuit is broken .
6.Welding current is 1. Secondary cable is too long and slander ,short length and increase
not
enough
section of secondary cable .
high
,current 2. If there is remote control device ,it is in remote control station .
adjustment is out of 3. Maybe current adjustment potentiometer is damaged .
control.