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MMA 315G/400G WELDING MACHINE

USER MANUAL

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Summary of Contents for MMA 315G

Page 1: ...MMA 315G 400G WELDING MACHINE USER MANUAL ...

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Page 3: ... hurt or property lose if it is not followed The words after this sign means there is potential risk which may cause equipment fault or break if it is not followed Version Version YF TAE 0036 A3 Released on 08th Feb 2017 The contents of this manual are updated irregularity for updating of product The manual is only used as operation guide except for other promises No warranties of any kind either ...

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Page 5: ...E 10 INSTALLATION INSTRUCTION 12 OPERATION INSTRUCTION 14 PANEL FUNCTION INSTRUCTION 15 NOTES OR PREVENTIVE MEASURES 16 QUESTIONS TO BE RUN INTO DURING WELDING 17 MAINTENANCE 18 TROUBLESHOOTING AND FAULT FINDING 19 APPENDIX Ⅰ CIRCUIT DIAGRAM 20 APPENDIX Ⅱ COMPONENT AND LIST 21 ...

Page 6: ... cause choke Spark and hot workpiece after welding may cause fire Bad connected cable may cause fire Incompletion connection of workpiece side circuit may cause fire Never weld on the case of tinder stuff or it may cause explode Never weld airtight containers such as slot pipe etc or it may break Arc ray may cause eye inflammation or skin burnt Spark and residue will burn your eyes and skin Toppli...

Page 7: ... user manual for safety Please follow the rules below to avoid electric shock Keep away from any electric parts Earth the machine and workpiece by professional personnel Cut off the power before installation or checking and restart 5 minutes later The capacitance is chargeable device Please ensure it has no voltage before start again even if the power source is cut off Do not use wire with inadequ...

Page 8: ...facilities to prevent hurt or poisoning by gas and other powder please To prevent oxygen deficiency air out the gas filled room which is full of CO2 and argon on the bottom When operating on trunks boilers cabins etc Please accept the supervisor s inspection when operating in narrow space Air the room and wear breathe preventive facilities Never operate in degrease washing or spray space Using bre...

Page 9: ...l operate check and maintain the machine by professional person Keep your fingers hair clothes etc away from the switch parts such as the fan The wire end may deal damage please note the following Never look into the electric conduction hole when checking the wire feeding is normal or not or the shooting wire may stab your eyes and face Keep your eyes face or other naked parts away from the end of...

Page 10: ...ise of industrial equipments e Health of people around Such as personnel using the heart pacemaker or audiphone f Equipments for adjustment and measurement g Anti disturb capability of other used equipments Users should ensure these equipments and the environment are compatible which may need extra preventive measures h Practical state of the welding and other activities Users should observe the f...

Page 11: ...softer or harder The welding machine has the following characteristics effective power saving compact stable arc good welding pool high no load voltage and good capacity of force compensation and multi use It can weld stainless steel alloy steel carbon steel copper and other color metal It can apply to electrode of different specifications and materials including acidity alkalescency and fibre It ...

Page 12: ...se AC 440V 15 Frequency Hz 50 60 50 60 50 60 Rated input current A 19 7 18 17 No load voltage V 60 73 74 Output current A 40 315 Rated output voltage V 32 6 Force range A 0 100 Duty cycle 40 No load loss W 80 Efficiency 85 Power factor 0 93 Insulation grade F Housing protection grade IP21 Weight Kg 15 Dimensions mm 425 212 357 ...

Page 13: ...y Hz 50 60 50 60 50 60 Rated input current A 27 7 25 3 24 No load voltage V 62 68 72 VRD voltage V 15 Output current A 40 400 Rated output voltage V 36 Force range A 0 100 Duty cycle 40 No load loss W 80 Efficiency 85 Power factor 0 93 Insulation grade F Housing protection grade IP21 Weight Kg 22 Dimensions mm 508 244 423 ...

Page 14: ...e 4 Put the fastening plug of the cable to fastening socket of polarity at the front panel fasten it clockwise and the earth clamp at the other terminal clamps the work piece 5 Please pay attention to the connecting polarity DC welding machine has two connecting ways positive connection and negative connection Positive connection holder connects with polarity while work piece with the polarity Neg...

Page 15: ...side 35mm2 50mm2 Earth cable 2 5mm2 4mm2 Electrode holder Electrode holder above 500A is suggested Electrode holder above 500A is suggested If distance of work piece and machine is too far 500 100m and the cables torch cable and earth cable are too long please choose cable of bigger section to minimize the reduction of the voltage ...

Page 16: ...ng 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 5 If the anti shock device is installed in the machine When the switch of back panel is put ON position the VRD indictor is lit and when the switch is put OFF position the VRD indicator is off then the no load voltage is 60 70V Switch of VRD is put inside...

Page 17: ...t 3 2 1 4 5 6 7 8 9 1 VRD switch 2 VRD indicator 3 Abnormal indicator 4 Current meter 5 Current adjustment knob 6 ARC force adjustment knob 7 Hot start adjustment knob 8 Positive output terminal 9 Negative output terminal The images shown here are indicative only ...

Page 18: ...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 Welding current should not exceed max duty cycle current Over load current will damage and burn up the machine 3 No over voltage Power voltage can be found in diagram of main tech...

Page 19: ...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 C Current is not stabilizing when machine is being operated This may be caused by the following factors 1 Electric wire net voltage has been changed 2 There is harmful interference from electric wire net or other equipment D Too much spa...

Page 20: ...nts If scale and rust are found please clean it and connect again tightly 4 Prevent water and steam from entering into the machine If that happens please blow it dry and check insulation of machine 5 If welding machine will not be used for long time it must be put into the packing box and stored in dry and clean environment WARNING Connected welding machine to dynamotor directly will damage machin...

Page 21: ... damaged contact with the supplier or manufacturer Abnormal indicator is on fan is working meter is normal 1 IGBT is damaged 2 Rectifier of quick recovery is damaged 3 Control board is broken 4 The feedback circuit is in fault Please contact with the supplier or manufacturer Too much spatter during MMA welding Output terminal polarity connection is wrong So please change the polarity Erratic weldi...

Page 22: ...20 APPENDIX Ⅰ CIRCUIT DIAGRAM ...

Page 23: ...21 APPENDIX Ⅱ COMPONENT AND LIST l MMA 315G ...

Page 24: ...of right side 1 10 back top protection angle of right side 1 36 Reactor 1 11 back top protection angle of left side 1 37 Reactor pad 1 12 air switch 1 38 ring transformer 1 13 Angle support 1 39 Polyester capacitor 1 14 copper connector of switch 3 40 quick socket 2 15 connector support 1 41 Reactor 1 16 Power frequency transformer 1 42 Machine bottom 1 17 control board 1 43 plastic foot 4 18 cove...

Page 25: ...23 l MMA 400G ...

Page 26: ... protection angle of right side 1 39 Front bottom panel 1 12 Air switch 1 40 Front bottom protection angle of right side 1 13 Angle support 1 41 Ring transformer 1 14 Back top protection angle of left side 1 42 Output reactor 1 15 clapboard 1 43 Quick socket 2 16 Rubber ring 4 44 Remote control output teminal pad 1 17 Rubber ring 1 45 Hall 1 18 Capacitor plate 1 46 Upper board 1 19 Heat sink plate...

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