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Table of Contents
Troubleshooting
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Summary of Contents for WELDPRO MMA160GDsv
- Page 1 MMA160GDsvMMA200GDsv LINLONG LIMITED Operator’s Manual www.weldpro.com...
- Page 2 Introduction This manual contains the description of the hardware and the operating instructions of the equipment. For your safety and that of others, please read this manual carefully. Attention Pay attention to the words following the signs below. Sign Description The word following this sign means that there is great potential danger, which may DANGER cause a major accident, damage or even death, if the instructions are not followed.
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Page 3: Table Of Contents
CONTENTS 1 SAFETY WARNING........................ 2 PRODUCT DESCRIPTION....................... 3 TWO YEAR WARRANTY......................4 TECHNICAL PARAMETERS....................5 INSTRUCTIONS FOR THE INSTALLATION................6 OPERATING ......................... panel layout ........................ Operating instructions ....................Welding environment and safety ................. Troubleshooting during welding ................... 7 DAILYMAINTENANCEANDCHECKING ................. 8 TROUBLESHOOTING...................... -
Page 4: Safety Warning
SAFETY WARNING The safety notes contained in this manual are to ensure correct use of the machinery and to prevent injury to the user or other persons. The welding machine was designed and manufactured with safety in mind. Please refer to the safety warning contained in the manual to avoid accidents. - Page 5 DANGER Please observe the following rules to avoid serious accidents • Never use the equipment for purposes other than welding. • Follow related regulations regarding the characteristics of the power source, choice of place, usage of high- pressure gas, storage, configuration, safe-keeping of the workpiece after welding and disposal of waste, etc. •...
- Page 6 WARNING The gases and fumes are hazardous to health, please wear personal protective equipment according to regulations • Wear exhaust equipment and respiratory protective equipment to prevent gas poisoning or choke. • Use suggested exhaust ventilation system and respiratory protective equipment to prevent injuries or poisoning by gas or dust.
- Page 7 ATTENTION For better work efficiency and power source maintenance, please note the following: • Take precautions to prevent toppling. • Never use welding equipment to unfreeze a pipe. • Lift the power source from side when using a forklift to avoid toppling. •...
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Page 8: Product Description
PRODUCT DESCRIPTION The MMA series welding machines are equipped with the world’s most advanced inverter technology. The appearance of the inverter arc welding machines is based on the power inverter theory and components. The inverter’s working principle is that the 60Hz power line frequency is transformed to direct current and inverted to a high frequency (33KHz) using a high power IGBT device. -
Page 9: Two Year Warranty
Weldpro will not be responsible in the event of a product failure, for lost time in operation or use of said product. Rather it will honor solely the product itself only. -
Page 10: Technical Parameters
TECHNICAL PARAMETERS Model MMA160GDsv MMA200GDsv Parameters 1 phase 1 phase 1 phase 1 phase Supply voltage (V) 115V±15% 230V±15% 115V±15% 230V±15% Frequency (Hz) Rated input current (A) Opencircuit voltage (V) Output current (A) 15-160 15-160 15-120 15-200 Output voltage (V) 20.6-24.8... -
Page 11: Instructions For The Installation
(mma) welding with basic electrodes. Check welding rod manufacturer specs for proper polarity. When TIG welding with the optional TIG torch and cable assembly available through Weldpro, your TIG torch should always be connected to the minus connection on the welder, electrode negative. -
Page 12: Operating
OPERATION 1 panel layout • Front panel VRD indicator FAULT indicator Current adjustment knob MMA indicator TIG indicator MODE switch Press MODE button for 5 seconds to control VRD function open and close • Back panel Power supply input Power switch Persiennes The images shown here are indicative only. -
Page 13: Operating Instructions
2 Operating instructions Turn on the power switch, the power indicator light comes up and the fan starts running. Set the welding current according to the requirements of the welding work. Usually, the necessary welding current for the electrode welding is as follows: Specification 3/32’’... -
Page 14: Troubleshooting During Welding
4 Troubleshooting during welding The below listed occurrences may happen due to the accessories used, the welding material, the environment or the power supply. Improve the working environment to prevent these issues. • Difficult arc starting. The arc is constantly interrupted: Check if the grounding clamp is properly connected to the workpiece. - Page 15 • Daily checking WELDING MACHINE Component To check Remarks May result in unstable arc and Operation, conversion and switch installation. poor wire supply. Operation control board Check the status of the power indicator light. Clean the residue, find out the reason of the problem and Check if the fan works properly, and if the sound emitted Cooling fan...
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Page 16: Troubleshooting
The indicator lights function The overheat protection may be activated. Wait 2-3 minutes until the abnormally machine starts working again. Do not turn off the power supply. There may be a malfunction in the inverter circuit (contact your dealer). LINLONG LIMITED www.weldpro.com...
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