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Hyundai

08

MMA-

100/120/140/160/180/200

Welding parameters table (for reference only)

Electrode dia. (mm)

Recommended welding current (A)

Recommended welding voltage (V)

1.0

20~60

20.8~22.4

1.6

40~84

21.76~23.36

2.0

60~80

22.4~24.0

2.5

80~120

23.2~24.8

3.2

108~148

23.32~24.92

4.0

140~180

24.6~27.2

5.0

180~220

27.2~28.8

6.0

220~260

28.8~30.4

Working Environment

1) Welding should be carried out in dry environment with its humidity of 90% or less.
2) The temperature of the working environment should be between -10°C to 40°C.
3)  Avoid welding in the open air unless sheltered from sunlight and rain. Keep it dry anytime and do not place 

it on wet ground or in puddles.

4) Avoid welding in dusty area or environment with corrosive chemical gas.
5) Gas shielded arc welding should be operated in environment without strong airflow.

Safety Tips

Over-current/over-voltage/over-heating protection circuit is installed in this machine. If the input voltage or the 
output current is too high or machine inside temperature over heating inside, the machine will stop automati-
cally. However, excessive use (e.g. too high voltage) of machine may also damage machine, so please note:
1) 

 

Ventilation 

        

High current passes when welding is carried out, thus natural ventilation can not satisfy the machine’s 
cooling requirement. Maintain good ventilation through the louvers of the machine. The minimum distance 
between the machine and any other objects in or near the working area should be 30cm. Good ventilation 
is of critical importance for the normal performance and lifespan of the machine.

2)  Welding operation is forbidden while the machine is overload. 

 

    

Remember to observe the max load current at any moment (refer to the corresponding duty cycle). Make 
sure that the welding current should not exceed the max load current. Overload could obviously shorten 
the machine’s lifespan, or even damage the machine.

3) 

 

Over-voltage 

is 

forbidden. 

       

Regarding the power supply voltage range of the machine, please refer to “Main Parameters” table. This 
machine is of automatic voltage compensation, which enables the maintaining of the voltage range within 
the given range. In case that the input voltage exceeds the stipulated value, it would possibly damage the 
components of the machine.

4)  A sudden halt may occur while the machine is of overload status. Under this circumstance, it is unneces-

sary to restart the machine. Remain the built-in fan working to lower the temperature inside the machine.

7. Caution

Summary of Contents for MMA series

Page 1: ...DC INVERTER MMA WELDER MMA 100 120 140 160 180 200 User Manual For Your Safety Read and understand this manual before use Keep this manual for future reference EN...

Page 2: ...r therefore some parts of this welder may be changed in order to achieve the better quality but the main functions and operations will not be alternated and changed Your understanding would be greatly...

Page 3: ...200 Safety General Description Main Parameters Electric Block Diagram Operation Control and Description Installation Debugging and Operation Caution Maintenance Troubleshooting Exploded Drawing 2 3 4...

Page 4: ...earing wet gloves clothes Make sure that you are insulated from the ground and work piece Make sure that your working position is safe Smoke gas may be harmful to health Keep the head away from smoke...

Page 5: ...eek professional help if you still cannot fully understand after reading the manual or still cannot solve the problem according to the manual Advanced DC inverter technology High inverter frequency gr...

Page 6: ...VA 3 8 4 7 5 6 6 6 7 7 9 Rated Input Current A 17 21 26 30 35 41 Rated Output Current Voltage 100A 24 0V 120A 24 8V 140A 25 6V 160A 26 4V 180A 27 2V 200A 28 0V Output Current A 10 100 10 120 10 140 10...

Page 7: ...Hyundai 05 MMA 100 120 140 160 180 200 4 Electric Block Diagram...

Page 8: ...model optional 4 Power LED To indicate the power Power LED on indicates that the power switch of the machine is on 5 Overheating LED To indicate overheating Overheating LED on indicates that the temp...

Page 9: ...d for safety purpose The connection as mentioned above in 6 1 4 and 6 1 5 is DCEP connection Operator can choose DCEN connection according to work piece and electrode application requirement Generally...

Page 10: ...e machine so please note 1 Ventilation High current passes when welding is carried out thus natural ventilation can not satisfy the machine s cooling requirement Maintain good ventilation through the...

Page 11: ...including that between the connections and that between the connection and the enclosure Only when there are no abnormal phenomena anymore then the machine can be used 5 Check periodically whether th...

Page 12: ...ne If any reconnect Turn on the machine the power LED is on the fan works but no welding output 1 Check if any loose contact exists inside the machine 2 Open circuit or loose contact occurs at the joi...

Page 13: ...3 Output current adjustment knob 4 Power LED Overheating LED Indicator 5 Quick Connectors 6 Front Panel 7 PCB 8 Back Panel 9 Cable Fastener 10 Power Switch 11 Plastic Cover Optional only for Plastic...

Page 14: ...R MMA WELDER MODEL MMA 100 120 140 160 180 200 Satisfies the requirements of the Council Directives EC Low voltage directive 2014 35 EU EC Directive of Electromagnetic Compatibility 2014 30 EU RoHS Di...

Page 15: ......

Page 16: ...HYUNDAI Corporation 25 Yulgok ro 2 gil Jongno gu Seoul 03143 Korea Post Code 03143 82 2 390 1114 www hyundaicorp com Copyright 2016 HYUNDAI Corporation All rights reserved Made in P R C...

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