background image

17

base plate groove is too deep

change

the

shallow

plate groove

Slag
Inclusion

the former molten slag of welding bead is not cleaned

remove molten slag

small current, too much weld slowly deposition, to much
swing during welding

increase

the

current

and reduce the swing
during welding

Big spatter

welding current and voltage doesn’t match

Adjust the welding data

There is too much oil, rust or water on wire or work-piece

clean the wire and work
piece

wire is streching too long outside the nozzle

press the torch closer to
work-piece

too big diameter of the nozzle

Change

to

suitable

nozzle

Penetration
is

not

enough

welding current is too small

Increase

welding

current

wire is streching too long outside the nozzle

press the torch closer to
work-piece

groove is not good

too small angle

too small gap

change

the

welding

technology process

* Common Failure of welding machines and solution

No.

Failure

Failure reason

Solution

F1

Fan is not turing

Fan is broken

Change the fan

Loose connection

Check where is the loss connection
and tighten it

other

Contact the seller

F2

Protection LED is
on

overheat

of

the

internal

machine

Wait till the temperature is coming
down and light is off

Thermal relay is broken

Change thermal relay

other

Contact the seller

F3

Current

and

voltage no display

Current and voltage display is
broken

Change the display

Loose connection

Check where is the loss connection
and tighten it

Main control board is broken

Change the main control board

Other

Contact the seller

F4

When press the
torch button, the
torch is not on

Torch switch is broken

Change the torch switch

Cable

connection

is

not

connected

Contact the cable

Control board is broken

Change or repair the control board

F5

No gas

Gas hose is blocked

Connect the gas

Gas hose is press

Check the gas flow

Summary of Contents for INVERMIG 350III

Page 1: ...y and understand all ASSEMBLY AND OPERATION INSTRUCTIONS before operating Failure to follow the safety rules and other basic safety precautions may result in serious personal injury 2015VERSION OWNER S MANUAL WELDING AND CUTTING TOTAL SOLUTION ...

Page 2: ...AFETY RULES Product Description Safety Operation Technical Specifications Installation and commissioning Operation Trouble Shooting List of Spare Parts Schematic Circuit Diagram Complete Set Specifications Transport Storage ...

Page 3: ...lding in free from flammable materials Always keep a fire extinguisher accessible to your welding environment Always have a qualified person install and operate this equipment Make sure the area is clean dry and ventilated Do not operate the welder in humid wet or poorly ventilated areas Always have your welder maintained by a qualified technician in accordance with local state and national codes ...

Page 4: ...f Danger Caution or Warning Electrical Shock Electric arc welders can produce a shock that can cause injury or death Touching electrically live parts can cause fatal shocks and severe burns While welding all metal components connected to the wire are electrically hot Poor ground connections are a hazard so secure the ground lead before welding Wear dry protective apparel coat shirt gloves and insu...

Page 5: ... flammable gaseous or liquid combustibles in them Welding creates sparks and heat that can ignite flammable and explosive materials Do not operate any electric arc welder in areas where flammable or explosive materials are present Remove all flammable materials within 35 feet of the welding arc If removal is not possible tightly cover them with fireproof covers Take precautions to ensure that flyi...

Page 6: ...ic application Do not look into the valve when opening it Use protective cylinder cap whenever possible 1 5 Proper Care Maintenance and Repair Always have power disconnected when working on internal components Do not touch or handle PC board without being properly grounded with a wrist strap Put PC board in static proof bag to move or ship Do not put hands or fingers near moving parts such as driv...

Page 7: ...tput voltage strong ability of power supply compensation Continuous welding voltage adjustment accurate match to the different welding current Unified mode according to the welding current automatic matching of the corresponding welding voltage Specially designed dynamic characteristic control circuit little spatter good welding surface higher efficiency Arc ending ball cutting soft wire feeding A...

Page 8: ...ccess the job site The welder must be installed in the place where it can not be exposed to sun and rain Also it must be stored in less humid place with the temperature range at 10 40 There should be 50 space about for the welding machine to have good ventilation Make sure that there is no metal like foreign body to enter the welding machine No violent vibration in the welder s surrounding area Ma...

Page 9: ... III series IGBT welder adopts movable case structure the upper part of front panel includes digital current meter voltage meter arc ending welding current adjusting knob arc ending welding voltage adjusting knob inductance control adjusting knob welding function selector press button gas ending arc mode selector press button wire diameter adjusting knob protectd gas selector press button Auto Uni...

Page 10: ...ing Green light on yellow light on The machine is overheated The machine will go back to working condition if the inner temperature of machine returns to the allowed level ITEM INVERMIG 350IIII INVERMIG 400IIII INVERMIG 500IIII Power voltage V 380 400 415 380 400 415 380 400 415 Frequency Hz 50 60 Rate input current A 25 5 29 41 8 Rate input capacity KVA 16 8 20 5 27 5 OCV V 70 73 75 70 73 75 70 7...

Page 11: ...the difficulty to the next welding The burn back is set in the machine to solve this problem The machine will keep output voltage during certain time to keep wire burning 3 12 Waveform control It means electronic reactor It can adjust wire burning power by changing the current changing speed and reduce the spatter 3 13 Ball cutting Usually there is a big droplet at the end of wire after welding An...

Page 12: ...l area should not be less than that of input power cable 4 1 Connection to power supply The welder must be loaded in the place where is less dust no chemical erodible inflammable or explosive gas and goods around the welding site The welder should be installed in the place where it can not be exposed to sun and rain Also it must be stored in less humid place with the temperature range 10 40 mm The...

Page 13: ...vice 4 5 Connection work piece Connect quick connector male of earth cable to the socket on the front panel of welding machine and twist the quick connector male clockwise to ensure the tight connection The other end clamps work piece 4 6 Connection of cables For solid wire connect wire feeder to the output of machine connect earth cable to output of machine For flux core wire connect wire feeder ...

Page 14: ...3phase XXXV 50HZ 5 Heat power socket AC36V connecting heater coil of CO2 gas regulator 6 Power fuse 3A High voltage when changed should be cutting the power 7 Air auto switch When the machine overload or power off suddenly it is can protect the machine 8 Nameplate 9 Socket Connecting earth cable to work piece 10 Fan 11 Hoop 5 2Controller of wire feeder 1 Current adjustment knob for the current 2 M...

Page 15: ...th is from 30 to 30 and 0 is recommend 8 Gas checking 9 Protective gas option button CO2 or MIX 10 Wire diameter button φ1 0 φ1 2 φ1 6 350 φ0 8 φ1 0 φ1 2 11 Welding function button MMA MIG MAG 12 Ending arc current adjustment knob Under MMA is used for adjustment welding current under MIG MAG is used for ending current wire speed 13 Ending arc voltage adjustment knob Under MMA is used for adjustme...

Page 16: ...nt and independent adjustment The adjusting indication of waveform is not quantitative value it is adjusting direction 5 6 Maintenance and service As a Hi Tech machine the INVERMIG III series welding machine employs many advanced electronic parts Proper operation maintenance conducted by qualified personnel can assure it of good performance and prolong its operating life Only the qualified personn...

Page 17: ...ad to wire deformation adding the feeding resistance and accelerating the friction of gear if pressed over firmly ATTENTION The welder voltage is always higher so the safety precaution should be taken before repair to avoid Accidental shock Under no circumstance can anyone except the professionally trained personnel open the case of the machine Switch off the power source each time when removing d...

Page 18: ...o small gap change the welding technology process Common Failure of welding machines and solution No Failure Failure reason Solution F1 Fan is not turing Fan is broken Change the fan Loose connection Check where is the loss connection and tighten it other Contact the seller F2 Protection LED is on overheat of the internal machine Wait till the temperature is coming down and light is off Thermal re...

Page 19: ...er lose phase Check and get the normal input power Power switch is broken Change the power switch Fan is broken Change or repair the fan Connection cable is broken or lose Check and repair F9 No OCV Overheat of internal machine Change F2 Power switch is broken Change the power switch F10 Machine or cable is over heating socket is overheating Torch power is too small Change the bigger power torch C...

Page 20: ...er plate WELDMATIC 500I pcs 1 7 11010050298 Mounting plate INVERMIG 350WII pcs 1 8 20070430166 Fast recovery tube radiator NB 500E 200 200 100 IGBT pcs 1 9 11020015851 cylinder baffle TekMaster MIG 250 pcs 1 10 20040300009 Outside force type cable fixed head EG 21 PG21 pcs 1 11 11110270033 Power input wiring harness INVERDELTA 400E pcs 1 12 20070570126 Two core socket DCZ 02 pcs 1 13 20070520004 T...

Page 21: ...50WII pcs 1 33 11020015822 screen printing plate INVERMIG 500E pcs 1 34 20050050654 plastic panel INVERMIG 500E pcs 1 35 11020015862 The connection line INVERMIG 350W pcs 1 36 11020015850 output bus INVERMIG 350W pcs 1 37 11020015273 output reactor NB500E PM500 10 24D33 8 2 pcs 1 38 12010100373 output rectifier board assembly NB500E pcs 1 39 11020013349 Fast recovery radiator mounting bracketNB500...

Page 22: ...21 Schematic Circuit Diagram The circuit diagram is for reference ...

Page 23: ...made according to customer s requirements 3 Consumables parts description Torches wire feeder liner rollers and carbon brushes are consumables parts and not covered by warranty terms Transport Storage The machine shall used indoor and during transportation the machine shall be protected from rain and snow During transportation the handling shall performed according to warning The warehouse shall b...

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