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Newarc WFU12-4C
Operational Manual
NA9910616

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Summary of Contents for NewArc WFU12-4C

  • Page 1 Newcastle Upon Tyne Powered by Tel. 0191 295 0111 sales@newarc.co.uk ® Newarc WFU12-4C Operational Manual NA9910616...
  • Page 2 The RoHS Directive 2011/65/EU, entering into force 2 January 2013 Type of Equipment Wire feeder Brand name or trade mark Newarc Type designation etc. WFU12-4C Manufacturer or his authorised representative established within the EEA Name, address, telephone no Newarc Newcastle upon Tyne Phone: +44 (0)191 295 0111...
  • Page 3 Never use broken or faulty welding helmets. Always ensure there are adequate protective screens or barriers to protect others from flash, glare and sparks from the welding area. Ensure that there are adequate warnings that welding or cutting is taking place. WFU12-4C WFU12-4C...
  • Page 4 In the case of electromagnetic problems, it is the responsibility of the user to resolve the situation. It may be necessary to shield the equipment and fit suitable filters on the mains supply. WFU12-4C...
  • Page 5 BE AWARE OF SPARKS AND SPATTER DO NOT TOUCH THERMAL COMPONENTS! Wear protective clothing, such as leather Thermal components may cause severe burns gloves, Flame retardant overalls, boots and when in contact with unprotected skin. eyewear. WFU12-4C...
  • Page 6: Table Of Contents

    Contents Preface General Introduction Technical Specifications Overview of Panel MF34 Overview of Panel MF37 Overview of Panel MF34 Installation Operation Fault Finding MF34/MF34P Fault Codes MF37/MF37P Fault Codes MF33 Fault Codes Maintenance Warranty Electrical Diagram Parts WFU12-4C...
  • Page 7: Preface

    This operating manual contains important information on the use, maintenance and safety of your Newarc product. Please read the manual carefully before using the equipment for the first time. For your own safety and that of your working environment, pay particular attention to the safety instructions in the manual.
  • Page 8: Introduction

    1.2 Introduction The WFU12-4C wire feed unit is designed to work in conjunction with the Newarc range of inverter based power sources. This powerful four roll drive wire feed system boasts electronic stabilization for precise wire speed control. The large digital display allows for easy reading in low and high ambient light conditions;...
  • Page 9: Technical Specifications

    1.3 Technical Specifications Newarc WFU12-4C Current Rating 450 amps @ 60% 350 amps @ 100% Wire Diameter 0.8mm - 2.0mm Max Wire Spool Size 30cm / 12” Wire Speed Range 0 - 23 m/min Input Voltage 24 - 36V AC...
  • Page 10: Overview Of Panel Mf34

    4T but with a delay time of 1 second before it latches menu. on allowing a quick tack feature. 2:1 Wire feed scale (WS scale) *(Only available on programmable version) 2.2 Auto arc voltage correction (AutoDem) ** ** (Only available on Vref version) WFU12-4C...
  • Page 11 The time in seconds that the gas remains on after ON) therefore wire speed is a locked value and it only welding has stopped. allowing the voltage (U) to be adjusted by +-1V. Or (PLck OFF) allows programs to be fully adjustable once loaded. WFU12-4C...
  • Page 12: Overview Of Panel Mf37

    Note: Any settings that are changed are saved after a The last digit of the display indicates a letter to show the option mode selected. 3 second period. NOTE! Any settings that are changed are saved after a 3 second period. WFU12-4C WFU12-4C...
  • Page 13 4T but with a delay time of 1 seconds before it latches on allowing a quick tack feature. 3:1 Slow-Start (S) The length of time up to 1 second for the wire speed to be at 50% of the set wire speed value at the start of welding. WFU12-4C...
  • Page 14: Overview Of Panel Mf34

    (if fitted), wire feed and gas flow until the required welding condition is achieved. When used with the Newarc power sources all the controls can be adjusted whilst welding without dam- aging the machine.
  • Page 15 (if fitted), wire feed and gas flow until the required welding condition is achieved. When used with the Newarc power sources all the controls can be adjusted whilst welding without damaging the machine.
  • Page 16: Installation

    • For straight polarity welding, connect the power in connector on the rear of the wire-feeder to the +ve connector on the power source. • Connect the welding earth lead to the -ve connector onthe power source and attach the earth clamp to the workpiece. WFU12-4C...
  • Page 17 Do not over-tighten this connection. NOTE! The pressure regulator should be set between approximately 3 and 5 bar for normal use. WFU12-4C...
  • Page 18: Operation

    WFU12-4C nnected directly to the welding work and must remain connected in order to ensure accurate reading of arc voltage.
  • Page 19: Fault Finding

    Power source set to MMA (constant current), either change power source to MIG (constant voltage) or set wire-feeder to constant current setting. When using the Wire-feeder in constant current mode, especially with flux-cored wires, it improves the welding characteristic if reverse polarity is used (torch -ve). WFU12-4C...
  • Page 20: Mf34/Mf34P Fault Codes

    Motor drive main supply error Call service Err 8 Motor drive aux supply error Call service Err 9 Motor unit not detected Check wiring to motor Err 10 Motor unit not working Check wiring to motor Temperature sensor supply Call service WFU12-4C...
  • Page 21: Mf33 Fault Codes

    Check motor gearbox Motor driver fault Call service Temperature sensor fault Call service Motor drive main supply error Call service Motor drive aux supply error Call service Motor unit not detected Check wiring to motor Motor unit not working Call service WFU12-4C...
  • Page 22: Maintenance

    Annually As per the three monthly schedule, plus: • Have the wire-feeder calibration checked, if necessary have the machine re-calibrated by a Newarc trained technician. WFU12-4C...
  • Page 23: Warranty

    Newarc Ltd warrants that its goods and services are guaranteed to meet the specific performance under the stated conditions of use. Newarc cannot be held responsible for general wear and tear or for failure occurring due to misuse or abuse arising out of circumstances outside the stated condi-tions of use.
  • Page 24: Electrical Diagram

    7. Electrical Diagram SECTION 6 — ELECTRICAL DIAGRAMS 6.1 - System Diagram WFU12-4C WFU12-4C...
  • Page 25: Parts

    8. Parts SECTION 7—PARTS BREAKDOWN 7.1 - Component Locations WFU12-4C WFU12-4C...
  • Page 26 WFU12-4C...
  • Page 27 EW3350PPW Panel Mounted Dix Plug Feet NAM01720 NAM01630 Knob NAM01609 Knob NAM70049 Rocker Switch LEM current transducer NAM60249 NAM91134 Remote socket to motor drive PCB harness NAM91186 Ribbon cable (with Voltage reference PCB fitted) NAM91098 Ribbon cable (standard version) WFU12-4C...
  • Page 28 Unit 1, Whitehouse Industrial Estate, Whitehouse Road Newcastle upon Tyne NE15 6LN Tel: +44 (0)191 295 0111| Email: sales@newarc.co.uk | www.newarc.co.uk Powered by WFU12-4C www.newarc.co.uk ®...

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