Hyundai MMA-160 Manuale utente
DC INVERTER MMA WELDER
MMA-160
User Manual
For Your Safety
Read and understand this manual
before use. Keep this manual for future
reference.
EN
HYUNDAI
01 MMA-160
MMA-160
We are still constantly improving this welder, 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 appreciated.
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02 MMA-160
Safety ............................................................................................................................................................
General Description .....................................................................................................................................
Main Parameters ..........................................................................................................................................
Electric Block Diagram ..............................................................................................................................
Operation Control and Description .............................................................................................................
Installation Debugging and Operation ........................................................................................................
Caution .........................................................................................................................................................
Maintenance .................................................................................................................................................
Troubleshooting ............................................................................................................................................
Exploded Drawing ........................................................................................................................................
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5
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Table of Contents
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Welding is dangerous, and may cause damage to you and others, so take good protection when welding. For
details, please refer to the operator safety guidelines in conformity with the accident prevention requirements
of the manufacturer.
Professional training is needed before operating the machine.
● Use labor protection welding supplies authorized by national security supervision department.
● The operator must be qualified personnel with a valid “metal welding (OFC) operations” operation certificate.
● Cut off power before maintenance or repair.
Electric shock—may lead to serious injury or even death.
● Install earth device according to the application criteria.
● Never touch the live parts when skin bore or wearing 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 and gas to avoid inhalation of exhaust gas from welding.
● Keep the working environment in good ventilation with exhaust or ventilation equipment when welding.
Arc radiation—may damage eyes or burn skin.
● Wear suitable welding masks and protective clothing to protect your eyes and body.
● Use suitable masks or screens to protect spectators from harm.
Improper operation may cause fire or explosion.
●
Welding sparks may result in a fire, so please make sure no combustible materials nearby and pay attention
to fire hazard.
● Have a fire extinguisher nearby, and have a trained person to use it.
● Airtight container welding is forbidden
●
Must not use the machines for other purposes except welding, such as pipe thawing, battery charging,
heating.
1. Safety
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Hot work piece may cause severe scalding.
● Do not contact hot work piece with bare hands.
● Cooling is needed during continuous use of the welding torch.
Magnetic fields affect cardiac pacemaker.
● Pacemaker users should be away from the welding spot before medical consultation.
Moving parts may lead to personal injury.
● Keep yourself away from moving parts such as fan.
● All doors, panels, covers and other protective devices should be closed during operation.
Please seek professional help when encountering machine failure.
● Consult the relevant contents of this manual if you encounter any difficulties in installation and operation.
●
Contact the service center of your supplier to seek professional help if you still cannot fully understand after
reading the manual or still cannot solve the problem according to the manual.
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Advanced DC inverter technology
● High inverter frequency greatly reduces the volume and weight of the welder.
●
Great reduction in magnetic and resistance loss obviously enhances the welding efficiency and energy saving effect.
● Switching frequency is beyond audio range, which almost eliminates noise pollution.
Leading control mode
●
Advanced control technology meets various welding applications and greatly improves the welding performance.
● It can be widely used in acid and basic electrode welding.
● Easy arc starting, less spatter, stable current and good shaping.
Features of MMA series
●
Efficiency, energy saving, portable, stable arc, high no-load voltage, and with good compensation of arc
force, are able to meet various welding requirements in field work.
2. General Description
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3. Main Parameters
Technical parameters table:
Model MMA-160
Rated Input Voltage (V) 1P AC 230V, 50Hz
Rated Input Power (KVA) 6.8
Rated Input Current (A) 31
Rated Output Current & Voltage 160A/26.4V
Output Current (A) 20~160
No-load Voltage (V) 65±5
Rated Duty Cycle (%) 40
Efficiency (%) 85
Power Factor (cosø) 0.73
Protection Class IP21S
Insulation Class F
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4. Electric Block Diagram
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5. Operation Control and Description
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Warning
Please install the machine strictly according to the following steps.
The protection class of this machine is IP21S, so avoid using it in rain.
Before using, please make sure the input voltage is in voltage range (200V-240V). Otherwise, the machine will
be damaged.
● The electrode holder and earth clamp are easily connected to the machine by inserting the quick connector
and rotating it clockwise. Always ensure a correct connection and pay attention to the connection polarity.
● This welder has the function of DCEP(straight polarity) and DCEN(reverse polarity). DCEN means the weld-
ers electrode holder can be connected in the “-” output terminal while the earth clamp is connected to the
“+” output terminal. However, we recommend you to use the DCEP. If DCEN is connected,
it will cause an unstable arc, spatter, and the electrode to stick. If these symptoms occur,
change the polarity.
● Turn on the machine with power switch located on the rear of the machine.
●
Set output power control switch according to the type
and size of electrode.
Remark: this table is mainly for low-carbon steel electrode.
Please consult with the supplier if operator welds other material of electrode.
6. Installation Debugging and Operation
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 44~84 21.76~23.36
2.0 60~100 22.4~24.0
2.5 80~120 23.2~24.8
3.2 108~130 23.32~24.92
4.0 160~210 24.6~27.2
5.0 260~270 26.4~29.2
6.0 260~300 26.4~32.2
Indice
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