manual - Zika Industries LTD
Contents
1. Sticking spatter is much and caustic electrode of is difficult Electrode is connected wrong exchange grounding cable and handle cable USER S MANUAL 23 I TIG200DC2. ZIKH OWNER S MANUAL of cE Ay 0 I TIG200DC I TIG200DC Table of contents 1 Safety instruction and cautions TS MO Soi et ha ees ood 2 al este dees sca Me Ao uaien dada A A EAEE ss 2 2 Introduction instruction 2 1 How to Use this mantlali2 aaa bois ba 5 2 2 Confirmation of g ipmente terih asetet le idee dene anid cde tai de 5 2 3 Acceptance Of QUIM eskescededeeseacesh ath a a cence tndadecasacscisiacajdasascaecdsdecasdssesdenaaadzcaddesapsiaadiaptagd aastace 5 2 4 Description of production 6 2 5 SNN lS P N A gg 7 2 6 External characteristio iia A A Ad AA n 8 2 7 Operating principle block diagram Of circuit u LE EEE narrar 9 2 8 Means of TAS Mueve ied ple a e eine ara ei da 9 3 Equipment installation 9 1 Work environment a m o e ee 10 E A EEE 10 3 3 Electrical input connection and requirement distrilbUt On EEE kk kk kk kK KRA ARA 10 3 4 Input pOwer SOUICE Tal DN eeeee o o ee DeDe eAePePePePeeeeeebbbbb bb b bbbbbm brbrbbbrbrbV 11 SiOr Duty la aa 11 3 0 Specific N N NM eecoggg rnszranrnnrmnmnan 11 4 Technical parameters table 4s 4y4xlk 1 ix n ri d n l v en le naki nen a a ba CER MAMA kaka rl CEWER AY SAJ E ZE La 12 5 InStallatl n ln StIrUGti n lt y 1444 45132xxra xl ein ens Ani en i seed ee ee 13 6 Panel function instruction 6 1 Description O Panels ica dk heir ite tl bn oneness i ae ade ante cee ety 15 6 2 Oper
3. 60 No load loss 40 Arcing way High frequency arc ignition Efficiency 80 Power factor 0 73 Insulation grade F Hosing protection grade IP21 Weight kg 9 Dimensions mm 371x153x232 voltage and the specific working environment of user USER S MANUAL I TIG200DC INSTALLATION INSTRUCTION 5 Installation Our welding machine is equipped with power source voltage compensation system so it still can work normally when the power source voltage varies within the range of 15 rated voltage When long cable is necessary to be used the larger section cable is advised to be used to decrease line loss of voltage when the connecting cable is overlong it may impose great affect on arc starting performance of welding machine and other performance of system so we advice you use the recommended cable length 1 Confirm that the ventilation opening of cutting power source are not covered or blocked to ensure the cooling system effective Reliably ground the housing case through wire with conducting sectional area not less than 6mm2 connect the ground terminal on the back of welding machine to grounding device or ensure the grounding terminal of electric outlet has already independently grounded reliably Both methods can be used simultaneously to ensure safety Connect to shielding gas source Air fed channel should include gas cylinder argon gas pressure reduction flow meter and gas hose
4. and process demand 5 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 Function description of manual electric arc welding 1 Switch TIG MMA change over switch to MMA 2 Turn on power switch the fan begins rotating Hold the welding electrode with electrode holder and start welding 3 Select proper welding current according to welding thickness of work piece working station and welding process USER S MANUAL 16 I TIG200DC MAINTENANCE AND SERVICE 7 1 Caution and Precautions Operating condition 1 2 Welding operation should be performed in a relatively dry environment with air humidity not more than 90 generality Ambient temperature should be within the range of 10 Cto 40 C Rh 0 Do not carry out welding work in dust region or environment containing corrosive gas Do not weld in sunlight or rain to prevent the water or rainwater seep in welding machine 5 Do not perform gas shielded welding operation in the environment with strong air flow Key point of safety Our welding machine is furnished with over voltage over current and overheating protection circuit When mains voltage output current and internal temperature exceed the set standard welding machine will automatically stop but overuse such as over voltage
5. it may result in unconformity between output current value and setting value when power supply voltage is lower than rated value the maximum output current of welding machine also may be lower than rated value The current is unstable in operating process of welding machine This instance may be related to the following factors 1 Power grid voltage has changed 2 The serious interference from power grid or the other utilization equipment Tungsten pin has severe burnt Oversize duty ratio regulation makes the workpiece emit electron to tungsten pin for overlong time which result in tungsten pin overheating When weld aluminum the oxidation film can not be broken 1 Select wrong welding shift 2 Undersize duty ratio regulation 3 Some field tubes are damaged in secondary inverter Abnormity indicator is on 1 The indicator will light when abnormal occurs in welding machine When the indicator lights please turn off the power switch After the indicator extinguishes restart up the machine and continue to weld 2 When the indicator lights repeatedly please call send for professional or manufacturer to carry out inspection and repair USER S MANUAL 18 I TIG200DC 7 Black welding spot This indicates that welding spot is oxidized due to not be protected effectively please carry out the following inspection 1 Confirm whether the valve of argon gas cylinder has already been opened and the pressure is adequa
6. person 1 1 Safety in Welding A Warning Touch the parts bearing electricity may cause fatal shock and severe burnt Once starting up output terminal and working circuit always are electrified when turn on the input power source input circuit and interior circuit are also electrified Welding electrode and all of metal components that contacting welding electrodes and electrode holder are electrified too Therefore the improper installation and wrong grounding are dangerous 1 Do not contact electrified parts 2 Please wear dry glove and protective clothing and safety helmet 3 Lay out the working space carefully to ensure you workpiece and floor are insulated reliably 4 In installation and maintenance of equipment make sure the machine is powered off or shutdown Please lockup the air switch or remove the fuse to prevent power switch closing accidentally 5 Carry out installation and grounding according to manufacturer s safety advice national standard and local code and regulation 6 Please cut off the power when not use the equipment When the equipment is not watched over or is repaired or scrap the power supply circuit should be disconnected 7 Make sure to use electrode holder with excellent insulation do not cool the electrode holder in water or place it on ground and work piece At the same time do not touch the connection point of electrode holder of the two equipments do not USER S MANUAL 2 I TIG200DC touch other
7. striking can not be heard wiping welding can not strike arc Positive and negative electrodes of VH 07 insert component voltage should be about DC308V from power panel to MOS board 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 connector is poor contact Check control circuit and find out reasons or connect with seller Check if control cable of torch is broken USER S MANUAL 21 I TIG200DC Abnormal indicator is not on sound of HF arc striking can be heard but 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 inner machine Abnormal indicator is not lit sound of HF arc striking can not be heard wiping welding can strike arc Primary cable of arc striking transformer is not connected to power panel firmly tighten it again 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 Some of HF arc striking circuit components are damage find out and replace it Abnormal indicator is lit but there is no welding output Maybe it is overheated protection please close m
8. achine first then restart the machine after abnormal indicator is out Maybe it is overheated protection wait for 2 3 minutes argon arc welding does not has overheated protection function 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 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 1 If abnormal indicator is still lit some of MOSFET of MOS board is damaged find out and replace it with same model 2 If abnormal indicator is not lit rise transformer of HF arc striking circuit is damaged replace it 3 If abnormal indicator is not lit 4 Maybe transformer of middle board is damage measure inductance value and Q value of main transformer by inductance bridge L 0 9 1 6mH Q gt 35 If value is too low please replace it 5 Maybe secondary rectifier tube of transformer is damaged find out faults and replace rectifier tube with same model 5 Maybe feedback circuit is broken USER S MANUAL 22 I TIG200DC 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 contacted specially inserts etc please check it
9. ation and CONO 54sal tds eagle ede iat anon lade ee 16 7 Maintenance and service 7 1 Caution and preCautionsics 23n asi dete a antic iaa ia 18 7 2 Common problem in welding and settlement Measures uEEiEEEE EEE kk k kk kk kk kk kK A KK KK Ak KARA KA kk KA A AA 19 7 3 Routine Maintenance iii A et 20 8 Troubleshooting e liMaltenancetool a lee al 21 8 2 TroubleshdotIng ita RR rrr 22 USER S MANUAL 1 I TIG200DC SAFETY INSTRUCTION AND CAUTION Warning Protect other people and yourself from the potential personal injury Children should keep away from the working place The heart pacemaker wearer should keep away from the working place according to doctor s orders Before installation debugging or repair please read this manual carefully Please keep this manual safely to avoid missing Failing to observe safety regulations and accident preventive measures both arc welding equipment and welding process may cause grievous personal injury even life safety or other equipment s damage and property loss Safety habits is formed in the past welding and cutting operation experience These practical experience has to be acquired through hard study and training and can be used in operating the equipment People who have never been trained in welding and cutting practice do not attempt to perform welding All installation debugging and maintenance ie maintenance service should be carried out by professional
10. connecting cable of workpiece and welding cable may have broken insulation layer somewhere which may cause electric shock and fire 8 Do not let welder to thaw out the frozen pipe USER S MANUAL 4 I TIG200DC 9 Remove the electrode from the welding holder when not welded INTRODUCTION INSTRUCTION 2 1 How to Use This Manual Please carefully read instruction for safety in operation and chapter about warning to ensure reliable installation and operation Pay most careful attention to the content under the title of warning caution and remark etc These special annotations are easy to understand A Warning Warning means matters that have the potential to cause personal injury Caution mean matters that have potential to damage the equipment Remark means matters that provide helpful operating instruction 2 2 Confirmation of Equipment Please check and confirm whether the model of received equipment is correct the accessories and parts accompanying the equipment the specification guarantee repair card certificate of conformity and packing list are complete the serial number or ex factory No is one to one correspondent and correct After confirmation record the result in relative forms for reference 2 3 Acceptance of Equipment Please confirm the received equipment is complete and in good condition In the event that something has been damaged please notify the post personnel your just claim as well as provide the recorde
11. connection joint of gas hose should be tightened with hose clamp or other objects to prevent argon gas leakage and air admission Reliably ground the housing case through wire with conducting sectional area not less than 6mm2 connect the ground terminal on the back of welding machine to grounding device Plug the quick plug of circuit cable into the quick socket on the panel of welding machine and screw it in clockwise clamp the work piece with the ground wire clip on the other end When use feet switch control connect the two pin aviation plug and three pin aviation plug of feet switch to the two pin aviation socket and three pin aviation socket on the panel of welding machine respectively Connect the power wire to distributor box of corresponding voltage grade according to input voltage grade of welding machine and make sure not connect to voltage wrongly Moreover ensure the voltage error is within the allowable ran In manual electric arc welding mode hand welding tongs should be installed according to the figure When the above work has been finished the installation work of welding machine is completed and the welding can be carried out Connect the power wire to distributor box of corresponding voltage grade according to input voltage grade of welding machine and make sure not connect to voltage wrongly Moreover ensure the voltage error is within the allowable range USER S MANUAL 13 I TIG200DC I TIG200DC installation instruc
12. d detailed information about the equipment damage and transport error as the evidence in support of your rights and interests The equipment should be stored in a proper and safe place with reasonable care after acceptance USER S MANUAL 5 I TIG200DC 2 4 Description of Product Our welding machine is equipped with advanced rectifier designed based on advanced inverter technology The inverter arc welding equipment is based on the appearance of inverter power source theory and parts Inverter arc welding source converts 50 60Hz industrial frequency to high frequency more than 100KHz through high power parts MOSFET field effect tube transfer electrical energy through high frequency transformer and magnetic coupling mode and reduce the voltage and then rectify And output powerful direct current required by welding technology through pulse width modulation technology PWM High frequency of inverter switch makes the weight and volume of main transformer considerable small The conversion efficiency of transformer has also improved remarkably by 30 The appearance of inverter welding machine is praised as a revolution in welding machine industry Our inverter argon arc welding machine has the following characteristics easy arc ignition concentrated electric arc air feed in advance air shut delay automatic welding current attenuation time continuously adjustable device pulse selection adjustable pulse frequency adjustable peak current adju
13. king Environment TIG series welding machine should be used in recommended environment Insulation work must be done in advance when the following or similar instance exists a When the operator s action is limited by environment such as only work on bended knees on foot or lay it must avoid directly contacting the current carrying part on equipment with body b In the event the operating environmental space is very narrow and small so that the operator can not step aside the current carrying conductor or in humid environment the operators easy to sweat which make them in great electric shock risks 3 2 Working Place Ensure the welding machine is placed according to the following instructions 1 Dry and dust environment Ambient temperature within 0 C 40 C Without oil sludge water vapour and corrosive gas No vibration and strike In rainproof and shade place 9 9 More than 300mm to wall to ensure cooling air flow not be blocked and excellent ventilation 3 3 Electrical Input Connection and Distribution Requirement A Warning Electric shock may cause death High voltage direct current still exists in equipment after power off please do not touch the current carrying part of equipment Shutoff welding machine power remove fuse and stick red warning mark on disconnecting switch A Warning Do not connect the power line red white wire to ground terminal Do not connect the ground wire
14. lass light Less than 25mm 3 to4 Oxy acetylene welding and cutting dark Over 150mm 5 to6 medium 25mm 150mm 4 to5 light Less than 3mm 4 to5 Gas shielded welding dark Over 12mm 6 to8 medium 3mm 12mm 5 to6 Less than 4mm 10 Manual electrode welding 4mm 6 4mm 12 Over 6 4mm 14 A Warning Welding is easy to cause fire and explosion Welding may generate spark splash jumping fire and hot metal splash heated work piece and heating equipment may cause fire and skin burnt Accident short circuit open circuit or contacting metal may cause overheat of wire cable or generate sparkle which may cause fire 1 Ensure you and other not be injured by splash spark and hot metal 2 Do not weld in the place where the spark can reach the combustible substance 3 Move the combustible substance 35FT 10 7m away from electric arc lf condition is limited please use the proper sheathing to cover them closely 4 Please watch out to prevent the spark and hot metal in welding course reach the neighbor area through narrow gap and opening 5 Place fire extinguisher and closely watch out You must be aware of that when welding on ceiling floor partition plate or folding screen the fire may occur on the back of them where it is not easy to be found 6 Do not weld on the closed tanks such as tank groove or cylinder barrel etc 7 Due to long distance power transmission in welding location the
15. may damage welding machine so you should pay attention to the following notes Ensure excellent ventilation Our welding machine is mini type welding machine There has great working current passing in working so natural ventilation could not satisfy the cooling requirement of welding machine therefore a built in fan is provided to cool the welding machine effectively to make it work steadily The operator should make sure the ventilation not be covered and coated or blocked up the distance between the welding machine and objects around should not be less than 0 3m User should always pay attention to keep excellent ventilation which is vital to preferable working and long service life of welding machine Overload is forbidden The operator should observe and check the maximal permissible load current from time to time relative to the selected load duration factor to ensure the welding current not exceed the maximal permissible load current Current overload may shorten the service life of welding machine remarkably even cause burnt of welding machine Over voltage is forbidden The supply voltage is listed in main performance parameter table In general the electric voltage automatic compensation circuit in welding machine will ensure the welding current within the allowable range When the supply voltage exceeds allowable value the welding machine may be damaged The operator should fully realize this instance and take correspondi
16. ng preventive measures When the welding machine exceeds the standard duty cycle in work it may enter into protection mode and pause which indicates that welding machine has exceeded standard duty cycle and the excessive heat energy will activate the temperature detecting switch TDS to make welding machine stop at the same time the red indicator on front panel will light Under this circumstances power plug need not to be unplugged so that the cooling fan can work on to cool the welding machine When the red indicator extinguishes it indicates that the temperature has dropped to standard range and the welding can restart USER S MANUAL 17 I TIG200DC 7 2 Common Problem in Welding and Settlement Measures The phenomena listed here may be related to the your used parts welding material environmental factor and power supply state please take measures to improve environment to avoid these matters occurring 1 Arc starting is difficult and arc easy break 1 Check and confirm whether the quality of tungsten electrode used is good The discharge efficiency of poor quality tungsten electrode can not meet the requirements 2 The tagging tungsten electrode can not start are and cause arc flare 3 When use the lengthen cable it will make excessive electric voltage drop at output terminal therefore the cable length is as shorter as better Output current not reach rated value When power supply voltage deviates from rated value
17. olivine wire to power line Welding equipment is powered by single phase or three phase 50 60Hz AC power source For the input voltage and fluctuation range please see the parameters listed on nameplate Please select power supply voltage strictly according to nameplate Caution Improper power supply voltage may damage equipment Remark This equipment is furnished with electric outlet which must be correctly connected by qualified electrician according to specification USER S MANUAL 10 I TIG200DC 3 4 Input Power Efficiency Each welding source has soft startups circuit and input EMC When main power switch is turned on soft startups circuit will provide pre charge for input capacitance and when the input capacitance is full about 5s power source will close the input relay Caution Please select the power source according to the nameplate of equipment improper input power source may cause welding machine can not work normally The power source with more or less voltage than that listed on nameplate may damage welding source Remark Fusing current can not exceed 200 rated current of welding source ARC series welding power source can be powered by oil electric engine In general oil electric engine with input power be twice of welding source input power For further details please contact local dealer who will propose the reasonable selection of oil electric engine 3 5 Duty Cycle Duty cycle means the working hours pe
18. or circuit connection of welding machine to confirm whether the connection is correct and the connection point is fast especially the plug in connection or component In the event rust and loose are found polish it with sandpaper to remove the rusty layer or oxidation film then reconnect and fasten it Prevent water or water vapor entering into welding machine or else carry out drying process and then measure the insulation condition with megameter include between connections and connection point and housing case The welding work can keep on only it is confirmed that there is no abnormal situation In the event that the welding machine is not used for a long time it should be replaced in original package and stored ina dry place USER S MANUAL 19 I TIG200DC TROUBLESHOOTING 8 1 Maintenance Tool The following is the schematic diagram of the required maintenance tool WARNING Connected welding machine to dynamotor directly will damage machine The heavy voltage pulse which is produced by dynamotor will burn out machine when machine connected to dynamotor only can use asynchronous dynamotor whose frequency and voltage both are steady Because of connecting welding machine to dynamotor directly lead to damage and malfunction which is not in guarantee USER S MANUAL 20 I TIG200DC 8 2 Troubleshooting Note the following operation requires the operator must have adequate electric professional kno
19. people electrode holder connection point and current carrying electrode 8 Do not use the cable which is used broken with small nominal section and unfirm terminal 9 Do not let the welding cable enwind human body 10 Grounding the work piece reliably 11 When connecting ground wire do not touch electrode 12 In maintenance must use perfect maintenance equipment 13 The AC arc welding machine without voltage reducing device VDR can not be used when welding is performed in narrow small and humid space We recommend using direct current arc welder to ensure personal safety 14 Please fasten your safety belt when working high above the ground or on unflat ground A Warning Arc light may injure your eyes and skin the noise may do harm to your hearing Welding process may generate high heat and strong ultraviolet radiation which have potential to cause eye injury and skin burnt and some working process may generate Heavy noise which harms your hearing 1 In welding and cutting course please wear qualified helmet which can filter the radiation to protect your eyes and face 2 Please wear a pair of standard goggles see table 1 1 3 Protect other people with folding screen or fencing not affecting by arc light and splash and warn do not look at electric arc 4 Please wear heat proof and fireproof clothing and protective shoes 5 Please wear qualified earplug or earcap in place where has great noise intensity A Wa
20. rcentage of equipment in 10 minutes work cycle when welding current decreases the duty cycle will increase when welding current increase it will decrease When output exceeds duty cycle grade the temperature in equipment will rise at this moment the protective circuit will start to work and disconnect output the equipment will not resume work until it cools to normal temperature Caution Persistent overload work may damage welding source The damaged caused by this does not be guaranteed 3 6 Specification We will improve the welding source continuously therefore the product may be optimized and upgraded our Company will not inform user and dealer in advance about this improvement Remark The characteristic electric voltage capacity volume and outline dimension etc are approximate value due to the manufacture condition therefore it is required correct installation debugging use maintenance and service USER S MANUAL 11 I TIG200DC TECHNICAL PARAMETERS TABLE 4 Technical parameters table of TIG200DC The above listed in table are only universal specification In fact these parameters will vary according to the distribution Model TIG200DC Parameter 1 phase Power voltage V rey 15 Frequency Hz 50 60 Rated input current A MMA TIG 43 28 Current range A 10 200 No load voltage V 56 Rated output voltage V MMA TIG 2918 Arc force adjustment C Duty cycle
21. rning Fume may do harm to health The smog and gas generated in welding process may do harm to your health after inhalation 1 Keep head out of fume and never inhale it 2 Indoors it is required to install ventilating device or exhaust fan to expel the fume and gas 3 Please use air filtering respirator when the ventilation is poor 4 Read material s security manual MSDSS and manufacturer s specification for metal material consumption material bedding and clothing and cleaning methods 5 When welding in narrow and small space please always ensure ventilation is excellent or wear air filtering respirator The air filtering respirator can filter the harmful gas which may cause health hazard and even personal death to ensure the air you inhaled is safe 6 Please do not perform welding in the location where the grease removal washing or spray working are carried out The welding process may generate arc light and heat which can activize extremely toxic substance and irritative gas USER S MANUAL 3 I TIG200DC 7 The welding machine can not be used to weld galvanized aluminized and cadmium plated steel plate unless the coating metal in welding area has been removed The welding location should be well ventilated If it is necessary please wear air filtering respirator Metal surface coating and any metal may generate toxic gas Cutting and welding arc light protection selection Welding and cutting Electrode size Filter g
22. stable valley current auto control arc starting and arc stop stable welding etc which make both welding seam and internal quality reach optimal effect and suitable for the welding which has special requirements for welding seam Our inverter argon arc welding machine can be used to weld stainless steel alloy steel carbon steel copper and other non ferrous metal In general the power source conversion efficiency of welding machine may exceed 85 Welcome friends from all walks of life use our products and offer your valuable advice we will commit ourselves to make our product and service more perfect USER S MANUAL 6 I TIG200DC 2 5 Symbol Table The following symbols are of universal identifier of welding only part of them may be used in our equipment A Ampere current Volt electric pressure lt Hertz frequency Second time sec Percentage an DC Direct Current AC Alternating Current ak TIG torch A Remote control Welding output negative Welding output positive USER S MANUAL 7 I TIG200DC 2 6 External Characteristic Description TIG series welding power source has the gradual closing characteristic with decent output The curve indicates the maximum output voltage and minimum welding current of welding source You can adjust the welding current within the minimum welding current and maximum welding current through current regulation turn bu
23. te In general when the pressure in cylinder is less than 0 5MPa it is necessary to recharge it again Check whether the argon gas flow is opened and adequate In order to save gas you can select different flow according to the welding current but undersize flow may result in insufficient shielding gas which can not cover the welding spot completely We recommend the argon gas flow not be less than 3I min no matter how small the current is Feel the nozzle with hand to examine whether it has gas flow out and examine whether the gas channel of welding torch is blocked When the gas channel is not sealed well or the gas is not pure it may cause poor welding quality When the air flow in working environment is too strong it may degrade welding quality 7 3 Routine Maintenance Routine maintenance means the periodical examination for cleaning according to operating condition examination period depends on the service condition Warning Before routine maintenance always make sure the power switch has been turned off Wait for 5 minutes to make primary side electrolytic capacitor in machine discharge completely Periodically remove the dust with dry and clean compressed air Dedust the welding machine everyday if it is used in environment with dense smoke and serious air pollution Compressed air pressure should reach a reasonable level to prevent damaging the small component part of welding machine Periodically check the interi
24. tion Power Supply 1 phase AC220V Argon Meter ce a Lo A I TIG200DC AA Connect to ground Electrode Holder A Warning Do not use fine wire or non welding cable as welding grounding wire USER S MANUAL I TIG200DC PANEL FUNCTION INSTRUCTION 6 1 Description of Panel I TIG200DC panel instruction 2 3 Li 6 1 Power switch 2 Power indicator led 3 Abnormal indicator led 4 Welding current adjustment 5 Positive output terminal 6 Torch switch socket 7 Gas electricity system output terminal 8 Negative output terminal 9 MMA TIG change over switch USER S MANUAL 15 I TIG200DC 6 2 Operation Control Warning When arc welding source is connected to power grid the circuit in power source has already carried about 240V voltage to ground therefore touch alive part is quite dangerous All connection operation should be carried out after confirming that the power source has been disconnected The correct order is connect weld line and ground wire to welding machine and confirm the connection is reliable and no loose then insert the power plug into power socket Caution When inserting cable plug into the power source socket if the connection is not tight it will cause severe heating of connection which may result in plug and socket burnt out and adhering together Positi
25. tton Figure 2 1 external characteristic curve of TIG series welding power source i Voltage output juaJno Buipjam unipau qns uaJIno BuIp am winipey juaJino Buipjam unuIxeu qns fuan u pjeM wnuwixey juaJ1n9 u pjem uJnuJ u jy j Current output En USER S MANUAL 8 I TIG200DC 2 7 Operating Principle Block Diagram of Circuit Grid input DC reactor current high frequency sensor control circuit inverter da secondary Primary pa rectifying Input rectify output voltage ah high frequ secondary arc ency inverter ignition filtering transforme switch device OUT r assembly temper OUT ature sensor PWM control Auxiliary Power PWM control waveform Supply generator control circuit 2 8 Means of Transportation A Warning crash down may cause equipment damage or personal injury Refer to transporting and placing methods marked on the external packing of equipment Handle the equipment with trolley or similar handling equipment which has adequate carrying capacity When handle the equipment with fork truck please fix it firmly to prevent it from slipping USER S MANUAL 9 I TIG200DC EQUIPMENT INSTALLATION A Warning Improper installation and connection will cause the equipment damage and personal injury Advice The electric connection of equipment must be performed by qualified electrician holding qualification certificate 3 1 Wor
26. ve terminal welding source output positive is connected to welding cable through this port When install insert the cable plug into power source socket and screw it in clockwise tightly to ensure connection firm Negative terminal Negative terminal welding source output negative is connected to welding cable through this port When install insert the cable plug into power source socket and screw it in clockwise tightly to ensure connection firm Switch once switch is closed arc welding source is connected to the power grid and the inverter can get electrical power from power grid Function description of argon arc welding 1 Turn on the power switch of front panel digital current meter is normal fan begins to run 2 Turn on argon switch and adjust gas pressure to rated value Refer to flow table 3 Press switch of torch electromagnetic valve is started You will hear the sound of electricity releasing HF sparkle and at the same time argon gets out the torch NOTES If the first time welding you should press switch for a few seconds before welding until all the air in the gas passage is removed and then start to weld When you stop welding argon will still flow out for a few seconds which is designed to guarantee that weld spot is protected before cooling down So when the electric arc stops keep the welding position for a while and then move the torch 4 Set suitable welding current according to the thickness of work piece
27. wledge and overall safety common sense and the operator should hold the valid qualification certificate to support his competence and knowledge We recommend you contact our Company first and gain approval before performing inspection and repair I TIG200DC Faults and Remedy Fault symptom Remedy 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 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 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 Turn off machine 2 3 minutes then restart the machine 3 Cable is loosed from switch to power panel tighten them again Turn on and turn off power switch constantly in short time cause machine is in protection circuit Turn off machine 2 3 minutes then turn on it again 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 Fan is working indicator is not lit and sound of HF arc
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