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Weiro WT – 315 DI Operation Manual

Wt-di series ac / dc pulse tig welding machine
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THANKS FOR PURCASHING OUR PRODUCT
WT – 315 DI
AC / DC PULSE TIG WELDING MACHINE
W E I R O
OPERATION MANUAL
(Read the manual carefully before installation, operation and maintenace)
Safety Depends on You
WEIRO are welding and cutting equipment is designed and built with safety in mind.
However, your overall safety can be increased by proper installation... and thoughtful
operation in your part. DO NOT INSTALL, OPERATE OR REPAIR THIS
EQUIPMENT WITHOUT READING THIS MANUAL AND THE SAFETY
PRECAUTIONS CONTAINED THROUGHOUT. And, most importantly, think
before you act and be careful.
C V . A N U G R A H D U T A N I A G A
Jln. Arief Rahman Hakim 51 Komplek Ruko 21 Klampis Blok D-1
Telp. 031 – 5990089, 5997259 (Hunting)
Fax. 031 – 5966099
Email :
adn_office@yahoo.com

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Summary of Contents for Weiro WT – 315 DI

  • Page 1 (Read the manual carefully before installation, operation and maintenace) Safety Depends on You WEIRO are welding and cutting equipment is designed and built with safety in mind. However, your overall safety can be increased by proper installation... and thoughtful operation in your part. DO NOT INSTALL, OPERATE OR REPAIR THIS EQUIPMENT WITHOUT READING THIS MANUAL AND THE SAFETY PRECAUTIONS CONTAINED THROUGHOUT.

  • Page 2: Table Of Contents

    Index 1. Principle &Technical data……………………………………………(1) 2. Features & Applications…………………………………………..(4) 3. Installation Guide……………………………………………….……(5) 4. Operating Instruction …………...………………………………..(8) 5. Repair & Maintenance…………………………………………..…..(17) Appendix A: EMC Suggestion for installation and use of welder……..(20) Appendix B: Feedback Form…………………………………………….(23) -１-...

  • Page 3: Principle &Technical Data

    Principle & Technical data WT-DI Series Block Diagram Of Principle: 3~380V/50Hz 3 phases Hi-frequent Hi-frequent Rectifier Hi-frequent & filter Rectifier inverter transformer inverter Inverter Control circuit Figure 1: Block diagram of principle This series welding machines apply IGBT HF inverter technology. Inputted line frequency 3-phase 380V are rectified by rectifier, inverted into HF AC, reduced by HF transformer, rectified and filtered by HF rectifier, then output DC volt or 50Hz AC square wave volt suitable for welding by second invert.
  • Page 4 1. Main technical parameters Item WT315DI WT500DI WT630DI Rated input volt 3 phase 380V/50Hz 9.3KVA 18.2KVA 30KVA Rated input capacity 14.4A 29.7A Rated input current 5-315A 20-500A 20-630A Constant current 5-315A 20-500A 20-630A Peak current 20-315A 20-500A 20-630A Welding current for SMAW Arc force current for SMAW 10-200A 5-315A...
  • Page 5 2. Main circuit diagram 1) WT315DI P1(1) P3(3) P2(2) Figure 4: Main Circuit Diagram for WT315DI -４-...

  • Page 6: Features & Applications

    Features & Application WT-DI series inverter multifunctional welding machines can be divided into three types (315DI, 500DI and 630DI). They can perform DC constant current TIG welding, DC pulse TIG welding, square wave AC constant current TIG welding, square wave AC pulse TIG welding, which are used for carbon steel, copper, titanium, aluminum as well as aluminum-magnesium alloy welding.

  • Page 7: Installation Guide

    Installation Guide 1． Pre-installation 1.1 Installation Environment The WT-DI is designed for use in adverse environments. Examples of environments with increased adverse conditions are:  In locations in which freedom of movement is restricted, so that the operator is forced to perform the work in a cramped (kneeling, sitting or lying) position with physical contact with conductive parts;...
  • Page 8 1.3 Power Source Connections Warning Thermal Arc advises that this equipment be electrically connected by a qualified electrician. ELECTRIC SHOCK can kill; SIGNIFICANT DC VOLTAGE is present after removal of input power. DO NOT TOUCH live electrical parts.  SHUT DOWN welding power source, disconnect input power employing lockout/tagging procedures.
  • Page 9 2. Installation:  The input power of this series welding machines is three phase AC 380V/50Hz. Operator must use the properly disconnected switchboard or switch box(not provided by our company) which is equipped circuit breaker, and should ground the welder safely and firmly. ...

  • Page 10: Operating Instruction

    Operating Instruction 1． Function introduction 1.1 Front panel illustration and parts number reference Figure 6: Model WT315DI Figure 7: Model WT500DI/630DI (1) Control panel Set the welding parameters. (2) TIG socket Connect the TIG torch or foot pedal switch when processing TIG welding. (3) Terminal socket (+) Connect to electrode holder when in SMAW mode;...
  • Page 11 1.2 Foot pedal switch with adjustable welding current Figure 8: Foot pedal switch Foot pedal switch can be used for arc start control and welding current regulation of model 315. Welder will switch automatically to foot pedal control after the control plug is connected to welder’s control cable socket.
  • Page 12 The function of circuit breaker is to protect welding machine by automatic trip to cut the power supply while in machine is during overload or failure. Use switch on the switch box to start or stop welding machine. Don’t use this circuit breaker as power switch. (2) Input power cable It is 4-pin cable.
  • Page 13 1.4 Control panel The control panel is shown as Figure 7, which is used to select welder functions and to set up parameters. The control panel is consisting of digital displayer, regulation knobs, and LED indication lights. Figure 11: Control panel ...
  • Page 14  Constant current TIG/Pulse TIG /SMAW -１３-...
  • Page 15 1.4.1 Glossary: 1. Pre-gas flow: Time elapse of gas flow before welding 2. Arc-start: Min current of start arc 3.Up-slope: Time elapse of welding current slopes up 4.Constant current: welding current on output constant current 5.Oxide clean ratio: time ratio of output clean current While in AC TIG, regulate clean width and penetration to obtain optimum welding quality.
  • Page 16 12. Down –slope: Time of welding current slopes down 13. Crater filling: Welding current of crater filling. 14.Post-gas flow: Time of gas flow after ending welding Figure 13: Parameters Setting Knob Function selection knob: Used for shifting modes illustrated previously. Tuning clockwise can select modes orderly from left to right, while select reversely by tuning counter-clockwise.
  • Page 17 2. Suggested welding parameters setting： Diameter Sheet/ Wire Welding plate Welding Argon flow Preheat Tungsten diameter layer Remark thickness current(A) rate/L.min temperature electrode face/back (mm) (mm) Flange 40-60 welding Flange welding or single side 50-80 1.6-2.0 butt Face 1 welding Butt 90-120 2-2.5...

  • Page 18: Repair& Maintenance

    Repair& Maintenance WARNING: Have a qualified electrician do the maintenance and trouble shooting work. Turn the input power off, using the disconnect switch at the fuse box before working inside the machine. 1. Cautions:  Rivet equipment name tag on the specified area of the case, otherwise the inside parts will possibly be damaged.
  • Page 19  Check if the input volt has the phase missing. (Input power 3 phase 380V/50HZ)  Check if the input cable is connected correctly and firmly with the power source.  Check if the ground lead is connected correctly and firmly. ...
  • Page 20 № TROUBLE CAUSES WHAT TO DO (1)Inspect power source Indicator light does (2)Inspect fan, transformer (1)Phase missing not light on and ZKB/QDB (2)Fuse size（2A）breaks doesn’t work when control board are in good (3)Input cable break down machine switches on. condition or not (3) Inspect cable following components...
  • Page 21 Appendix A 1. General The user is responsible for installing and using the arc welding equipment according to the manufacturer’s instructions. If electromagnetic disturbances are detected, then it shall be the responsibility of the user of the arc welding equipment to resolve the situation with the technical assistance of the manufacturer.
  • Page 22 precautions such as filtering of the public supply system. Consideration should be given to shielding the supply cable of permanently installed arc welding equipment, in metallic conduit or equivalent. Shielding should be electrically continuous its length. The shielding should be connected to the welding power source so that good electrical contact is maintained between the conduit and the welding power source enclosure.

  • Page 23: Appendix B: Feedback Form

    Appendix B Feedback Form Name of Company Address Contact person Title Telephone No Fax No. Email Address Company’s filed of business Comments ： Thank you for taking the time to share your feedback. Your comments and suggestions will help us to serve you better.