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Summary of Contents for YATO YT-81351
- Page 1 SUMMARY YT-81351...
- Page 2 SUMMARY Inverter DC MMA Arc Welding Machine IMPORTANT: Read this Owner’s Manual Completely before attempting to use this equipment. Save this manual and keep it handy for quick reference. Pay particular attention to the safety instructions we have provided for your protection. Contact your distributor if you do not fully understand this manual.
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Page 3: Table Of Contents
SUMMARY CONTENT §1 SAFETY ............................. 1 §1.1 Signal Explanation ........................1 §1.2 Arc Welding Damage ........................1 §1.3 The knowledge of Electric and Magnetic Fields ................4 §2 Summary ............................5 §2.1 Brief Introduction ........................5 §2.2 Working Principle ........................5 §2.3 Volt-Ampere Characteristic ...................... -
Page 4: Safety
SUMMARY §1 SAFETY §1.1 Signal Explanation The above signals mean warning! Notice! Running parts and getting an electric shock or thermal parts will take damage for your body or others. The corresponding notices are as follows. It is quite a safe operation after taking several necessary protection measures. §1.2 Arc Welding Damage ... - Page 5 SUMMARY In semiautomatic or automatic wire welding, the electrode, electrode reel, welding head, nozzle or semiautomatic welding gun are also electrically “hot”. Always be sure the work cable makes a good electrical connection with the metal being welded The connection should be as close as possible to the area being welded.
- Page 6 SUMMARY of your helpers from the arc rays. Protect other nearby personnel with suitable, non-flammable screening and /or warn them not to watch the arc nor expose themselves to the arc rays or to hot spatter or metal. SELF-PROTECTION ...
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Page 7: The Knowledge Of Electric And Magnetic Fields
SUMMARY Connect the work cable to the work as close to the welding area as practical. Work cables connected to the building framework or other locations away from the welding area increase the possibility of the welding current passing through lifting chains, crane cables or other alternate circuits. -
Page 8: Summary
IGBT——Insulation Gate Bipolar Transistor; §2.2 Working Principle The working principle of YT-81351 welder is shown as the following figure. Double phase 100V-120V±10%, 220V-240V±10% work frequency (50/60 Hz) AC is rectified into DC (about 300V), then is converted to medium frequency AC (about... -
Page 9: Volt-Ampere Characteristic
SUMMARY feedback control technology to insure current output stably. Meanwhile, the welding current parameter can be adjusted continuously and steplessly to meet with the requirements of welding craft. Medium Medium Single phase, AC Rectify Inverter frequency frequency Hall device 220/230V 50/60Hz transformer rectify Current positive-... -
Page 10: Installation & Adjustment
(10 minutes). The rated duty cycle The relation between duty cycle and welding current for YT-81351,230V means the proportion of the time that a machine can 100％ work continuously within 10 minutes when it outputs the rated welding current. -
Page 11: Welding Polarity Connection Way
INSTALLATION AND ADJUSTMENT §3.3 Welding polarity connection way §3.3.1 MMA YT-81351 Welding holder electrode workpiece DCEP Connection DCEP is only supported. -
Page 12: Operation Control And Connectors
OPERATION CONTROL AND CONNECTORS §4 Operation control and connectors §4.1 Layout for front & rear panel A-MMA L-Lift Tig H-Hot Start F-Arc Force V-VRD 110/230 1) Alarm lamp Over-heat or over-current. 2) VRD lamp VRD parameter indicator lamp. 3) Value display Display the pre-setting and realtime parameter value. -
Page 13: Parameters Adjustment
OPERATION CONTROL AND CONNECTORS §4.2 parameters adjustment Welding current range is 20A～160A. Hot start current range is 0%~99%. Arc force value range is 0%~99%. YT-series welder has the pre-setting function of welding current, hot start current, arc force value. Before welding, pitching the parameter options by pressing encoder key and adjusting parameter values by turn the knob, the parameter values will be show on the display. -
Page 14: Manipulation Of Electrode
OPERATION CONTROL AND CONNECTORS §4.4.2 Manipulation of electrode In MMA welding, there are three motions to being matched in the end of electrode: the electrode moving to the molten pool along axes; the electrode swing right and left; the electrode moving along welding way. The operator can choose the manipulation of electrode based on welding joint sharp, welding position, electrode spec, welding current and operation skill, etc. -
Page 15: Arc Welding Defect And Prevent Method
OPERATION CONTROL AND CONNECTORS the hydrogen of the molten pool and welding seam, and avoiding the blowhole and cold crack. In the welding process, the arc must not be too long; otherwise, it will cause unstable arc burning, large spatter, light penetration, undercut, blowhole, etc. If the arc is too short, it will cause electrode stick. -
Page 16: Operation Environment
OPERATION CONTROL AND CONNECTORS Defect name Caused reasons Prevent methods Welding The groove angle is not proper Choosing the proper groove angle & assembly seam doesn’t The root face and assembly gap is not equal gap, improve the assembly quality meet the Welding technics parameters are unreasonable Choosing the proper welding parameters... -
Page 17: Operation Notices
OPERATION CONTROL AND CONNECTORS §4.7 Operation Notices ·Read §1 §4.2 carefully before attempting to use this equipment. ·Connect the ground wire with the machine directly. ·Input power must be AC as one phase, 50Hz, 220/240V or 100/120V. Forbid working in lacking any phase。 ·In case closing the power switch, no-load voltage may be exported. -
Page 18: Maintenance & Troubleshooting
MAINTENANCE AND TROUBLESHOOTING §5 Maintenance & Troubleshooting §5.1 Maintenance In order to guarantee that arc welding machine works high-efficiently and in safety, it must be maintained regularly. Let customers understand the maintenance methods and means of arc welding machine more , enable customers to carry on simple examination and safeguarding by oneself, try one's best to reduce the fault rate and repair times of arc welding machine, so as to lengthen service life of arc welding machine .Maintenance items in detail are in the following table. -
Page 19: Troubleshooting
MAINTENANCE AND TROUBLESHOOTING Check up the bolt in arc welding machine, if it is loose, please screw down it. If it is skid, please replace. If it is rusty, please erase rust on bolt to ensure it works well. Whether the actual current accords with the displaying value. If they do not Quarter- accord, they should be regulated. - Page 20 If there are some simple troubles of YT-series welding machines, you can consult the following overhauling chart: Troubles Reasons Solutions The power light damaged or Test and repair the inside Turn on the power source, and fan works, connection is not good circuit of power light Pr3 but the power light is not on.
- Page 21 Over welding Induce the welding current Over heat current output protection Working time Induce the duty cycle (interval The alarm light is on too long work) Unusual Over current Test and repair the main circuit current in the protection and drive PCB (Pr1) main circuit...
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Page 22: Electrical Principle Drawing
§5.3 Electrical principle drawing...
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