Weiro WM250FI Operation Manual

Co2 / mig / mag automatic welding machine

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CO² / MIG / MAG AUTOMATIC WELDING MACHINE

OPERATION MANUAL

(Read the manual carefully before installation, operation and maintenace)

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

THROUGHOUT. And, most importantly, think before you act and be

careful.

Jln. Arief Rahman Hakim 51 Komplek Ruko 21 Klampis Blok D-1

WM – 350FI

W E I R O

Safety Depends on You

THE

SAFETY

C V . A N U G R A H D U T A N I A G A

Telp. 031 – 5990089, 5997259 (Hunting)

Fax. 031 – 5966099

Email :

adn_office@yahoo.com

PRECAUTIONS

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Summary of Contents for Weiro WM250FI

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,...
Page 2: Table Of Contents
Appendix A: EMC Suggestion for installation and use of welder….….(17) Appendix B: Feedback Form…………………………………………...(19) This operating manual can be fit for MIG-FI (including WM250FI/350FI/500FI) series welding machines. The technical data are measured with power supply 3 phase 380V, the data will be changed when you use different voltage or frequency.
Page 3: Principle &Technical Data
Principle & Technical data MIG-FI Series Block diagram of principle shown as Figure 1 Input (3~380V/50Hz) Output 3 phase Rectifier & Rectifier Inverter Transformer Filter Control circuit Figure1: Block diagram of principle This series welding machines apply IGBT soft switch inverter technology. 3-phase input volt 380V are rectified by rectifier, inverted into HF AC, reduced by HF transformer, rectified and filtered by HF rectifier, then output DC power suitable for welding.
Page 4 1. Main technical parameters Items WM250FI WM350FI WM500FI Rated input voltage (V) 3-phase 380±10% /50 /frequency (Hz) Rated input capacity (KVA) Rated input current (A) Power factor 0.95 Rated duty cycle Open load voltage (V) Welding current range (A) 40～250 60～350...
Page 5 2. Main Circuit diagram Figure 3 : Main circuit diagram - 4 -...
Page 6: Features & Applications
Features & Applications This inverter CO2/MAG welders are high-quality performers that can be used for all-purpose, semi-automatic CO2 gas shield welding with solid or flux-cored wire (Ф0.8-Ф1.6mm)for welding mild steel and low alloy steel work pieces. This series welder enjoys reasonable static characteristic and sound dynamic characteristic.
Page 7: Installation Guide
Installation Guide 1． Pre-installation 1.1 Installation Environment The MIG-E series welding machines are 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  Input volt must be standard sine wave, effective value 380V±10%, frequency 50Hz.  Unbalance degree of 3-phase volt must be no more than 5%.  Power supply: Model WM250FI WM350FI WM500FI Power supply 3 phase AC 380V Power network...
Page 9 1.5. Machine Assembling Guide: This series welder is small, light and portable. They will be more convenient if place them on the trolleys. Ensure the location where to place the welder is even. Figure 4: Connection Chart for MIG-E Series Preparation prior to operation procedure: (1) Connect the welder’s terminal plug (-) to the work piece by work lead.
Page 10 2. Operating procedure: Reset the circuit breaker on the switchboard, then the welder’s indicator lamp will turn on, and the cooling fan will spin. Press on the “Inch feeding” button on the feeder’s controller, the feeder begin to feed wire. Preset the process parameters by regulating the controller, tuning the knob, and flipping the switch to proper location on the front panel of the welder.
Page 11: Operating Instruction
Operating Instruction 1. Panel l illustration and parts number reference 1. 1 Front panel illustration and parts number reference Front panel is illustrated below, other models are little different from this. WM350FI Figure 5: Front panel (1) “Output Amp” meter Display relative feeding speed while in open load, and display practical value of current while in welding.
Page 12 (5) “Inductance” regulation knob Altering welding stability, penetration and spatter volume. Recommend value is 5-7. (6) “4-step /2-step” mode switch Switch to “2-step”, perform welding when push torch switch, stop welding when release the switch. This mode is suitable for short weld. To “4-step”, after successfully starting arc by push torch switch, then you can perform welding by release the switch, when you push torch switch again, torch will turn into crater-filling situation which was preset by stop- arc knobs on the front panel.
Page 13 2. The rear panel and parts number reference Figure 6: Rear panel (1) Circuit breaker The function of circuit breaker is to protect welding machine by automatic trip to turn-off power supply while in machine overload or failure. Normally, the switch flipped to upward which means power-on.
Page 14 3. Controller This controller is fixed on the panel of wire feeder. Panel illustration and parts number reference Figure 7: Controller Control panel (1) Current regulation knob Adjusting welding current (2) Volt regulation knob Adjusting welding volt 4. Sub-menu operation Enter the Sub-menu by pressing “2 step /4 step”...
Page 15: 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 16 3. Procedure for regular checking prior to maintenance  Check if all front panel switches are on the proper positions.  Check if the input volt has the phase missing, and range are between 340~420V.  Check if the input cable is connected correctly and firmly with the power source. ...
Page 17 TROUBLE CAUSES WHAT TO DO № (1)Phase missing (1)Check power supply Indicator lamp does not light (2)Circuit breaker is damaged (2)Replace on when machine switches (3)Fuse is broken (3)Replace (1)Circuit breaker is collapsed. (1)Replace (2)IGBT module is damaged (2)Replace IGBT module (3)3-phase rectifier bridge is and drive board damaged.
Page 18: Error Code
Error Code During the event of failure, the welder will automatically display the error code: CODE DESCRIPTION CAUSES WHAT TO DO The output terminals (+) Over-current and (-) is in short circuit Check the output cables or protection or exceed the rated reduce the welding current value welding current Welding machine is too...
Page 19: Appendix A: Emc Suggestion For Installation And Use Of Welder
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 20 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. 2) Maintenance of the arc welding equipment The arc welding equipment should be routinely maintained according to the manufacturer’s recommendations.
Page 21: 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. - 20 -...

This manual is also suitable for:

Wm350fi Wm500fi