Youly Electric YL Powership MMA-250FI Manuals

1 Operator’s Manual MMA-160FI MMA-250FI Inverter DC MMA Welder IMPORTANT: This operational manual kindly show you how to install, dedug, operate and maintain the welder. Read this instructions carefully and you will understand how to use it to reduce the risk of error operation. Warning! This machine should be operated and maintained by full-time staffs or professionals. You are not allowed to operate and repair it unless read this manual 2 CONTENT 1 Brief Introduction ----------------------------------------------------------------------------------------- 3 2 Safety --------------------------------------------------------------------------------------------------------- 3 2.1 Self-Protection --------------------------------------------------------------------------------------------- 3 2.2 Cautions ---------------------------------------------------------------------------------------------------- 4 2.3 Safety Precaution for Installation and Location ------------------------------------------------------ 4 2.4 Security Check -------------------------------------------------------------------------------------------- 5 3 Technical Description ------------------------------------------------------------------------------------- 5 3.1 Environment ----------------------------------------------------------------------------------------------- 5 3.2 Input Power ------------------------------------------------------------------------------------------------ 6 3.3 Equipment Principle -------------------------------------------------------------------------------------- 6 3.4 Equipment Structure -------------------------------------------------------------------------------------- 6 3.5 Guide for Marking Models ------------------------------------------------------------------------------ 7 3.6 Parameter --------------------------------------------------------------------------------------------------- 7 3.7 Standard ---------------------------------------------------------------------------------------------------- 8 3.8 Symbol Chart ---------------------------------------------------------------------------------------------- 8 4 Installation -------------------------------------------------------------------------------------------------- 8 4.1 Connection ------------------------------------------------------------------------------------------------- 8 4.2 Power Source Connection ------------------------------------------------------------------------------ 9 4.3 Electrode Polarity ---------------------------------------------------------------------------------------- 9 4.4 Workpiece Connection ---------------------------------------------------------------------------------- 10 5 Operation Instruction ----------------------------------------------------------------------------------- 10 5.1 Procedure ------------------------------------------------------------------------------------------------- 11 5.2 Electrode Replacement --------------------------------------------------------------------------------- 11 5.3 Slag Removal -------------------------------------------------------------------------------------------- 12 5.4 Maintenance ---------------------------------------------------------------------------------------------- 12 6 Basic Trouble Shooting ---------------------------------------------------------------------------------- 13 7 Parts List --------------------------------------------------------------------------------------------------- 14 8 Interconnection Diagram ------------------------------------------------------------------------------- 15 9 Accessories ------------------------------------------------------------------------------------------------- 15 10 Transportation and Storage -------------------------------------------------------------------------- 16 11 Quality Warranty --------------------------------------------------------------------------------------- 16 3 1 Brief Introduction INARC welder uses imported IGBT as main electric components. It is supplemented by a specially developed main PCB board. In addition, the uniform regulation of welding current has been designed to guarantee the arc reach good welding process adaptability. What’s more, its perfect dynamic protection features ensure that it is safe and reliable when use. It is ideal for using low carbon steel, alloy steel etc. INARC Features:  60% high duty cycle.  Lower cost operation, more portable, more compact, superior output.  Excellent arc properties and solution droplet transfer.  With the protections of over-heating, over-current.  Digital display function.  Plastic handle makes it beautiful and easy to carry.  Convenient quick connection for the output makes it quick, safe, simple and stable. NOTES: The above description may be modified without prior notice such as omissions, unclear statements about this welder. 2 Safety 2.1 Self-Protection * The user must comply with occupational safety and health rules and wear appropriate labor protective equipment. Try to avoid injury on eye and skin. * It is safe to cover your head with face mask while welding, only do the observation on the arc through the window of the mask. * Don’t expose any part of the body at the same time to the welding positive and negative output terminals without insulated protection. 4 2.2 Cautions * INARC Inverter DC Arc welder is a kind of electronic product which makes its components more easily damaged. While replacing or modulating, the strength should not be too much in order to avoid causing damage to the device. * Check the connection to see if it is correct or reliable each time before working. Besides, ensure the grounding outlet device correct. * While using, as smoke is harmful to human’s health, the operation must be carried out in the ventilation and exhaust facilities. * Prohibit non-professionals to change or replace the welder. * Since the welder owns strong electromagnetic and radio frequencies, the people with cardiac pacemakers affected by the interference electromagnetic, electrical frequency are not allowed to stay nearby. * When it works, please pay attention to its rated duty cycle. Do not overload. 2.3 Safety Precaution for Installation and Location * In some areas, where something may fall from the sky, personal safety precaution should be taken. * In some areas around construction site, something like the dust, acid, corrosive gases or other substance in the air cannot exceed the standard value except those generated while welding. * It is should be equipped in the open air where there is no direct sunlight, anti-rain, temperature range from -10℃ to +40℃ and low humidity place. * 50cm space is needed to ensure good ventilation. * No metal impurities are tolerant inside the welder. * In some areas, there is no severe vibration. * Make sure no interference will be caused to the surrounding in the welding area. * Whether the power supply capacity is sufficient to allow the welder to work normally or not. And a safety protection device should be equipped in the input power. * Prevent it from dumping if the welder is put in the place of over 10°incline.