Hwayuan Electric LGK-100GBT Operator's Manual
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Hwayuan Electric LGK-100GBT Operator's Manual

Inverter air plasma cutting machine
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LGK-100/160/200IGBT
INVERTER AIR PLASMA CUTTING MACHINE
OPERATOR'S MANUAL
(PLEASE READ IT CAREFULLY BEFORE OPERATION)
CHENGDU HUAYUAN ELECTRIC EQUIPMENT CO., LTD.

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Summary of Contents for Hwayuan Electric LGK-100GBT

  • Page 1 LGK-100/160/200IGBT INVERTER AIR PLASMA CUTTING MACHINE OPERATOR’S MANUAL (PLEASE READ IT CAREFULLY BEFORE OPERATION) CHENGDU HUAYUAN ELECTRIC EQUIPMENT CO., LTD.
  • Page 2 LGK-100.160.200IGBT OPERATOR’S MANUAL Safety Depends on You HUAYUAN arc welding and cutting equipments are designed and built with ample safety consideration. However, proper installing and operating can ensure your safety. DO NOT INSTALL, OPERATE OR REPAIR THIS EQUIPMENT CASUALLY WITHOUT READING THIS MANUAL THROUGHOUT.
  • Page 3 LGK-100.160.200IGBT OPERATOR’S MANUAL Caution s Arc and arc rays can hurt. All performing welding workers ought to have health qualification from the authority organization to prevent you and others from arc radiation and burn. It should be prevented for children to enter into dangerous area as well.
  • Page 4 LGK-100.160.200IGBT OPERATOR’S MANUAL 4 Spatter: Spatter can cause fire or explosion. Remove fire hazards from the welding area. Remember that spatter from welding can easily go through small cracks and touch fire hazards. Protect all kinds of lines going though welding area, including hydraulic lines in the wild. Where compressed gases are to be used in the field, special precautions should be used to prevent explosion.
  • Page 5 LGK-100.160.200IGBT OPERATOR’S MANUAL When engine is hot, it is forbidden to open the airtight cover of the radiator water tank to avoid hurt by the hot vapor. 8 Electromagnetic: Welding current going though any area can generate electromagnetic, as well as the welding equipment itself. Electromagnetic would affect cardiac pacemaker, the cardiac pacemaker users should consult one’s doctor first.

  • Page 6: Table Of Contents

    LGK-100.160.200IGBT OPERATOR’S MANUAL CONTENTS Summary …………………………………………………………… 6 Safety and Attention ………………………………………………… 6 Work Environment Conditions ……………………………………… 7 Technique Parameters ……………………………………………… 8 Working Principles ………………………………………………… 8 Panel and Functions ………………………………………………… 10 Protection function of the cutter …………………………………….12 Installation and Operation ………………………………………… 13 Maintenance …………………………………………………………...

  • Page 7: Summary

    LGK-100.160.200IGBT OPERATOR’S MANUAL Summary ◆ 1. Model description IGBT IGBT Inverter Rated cutting current Air plasma Cutting Plasma machine Characteristics LGK-100/160/200IGBT inverter air plasma cutting machine is a new generated cutter of our company. It has good characteristics as following: 1) This cutting machine adopts IGBT inverter technology which has high reliability and efficiency.

  • Page 8: Work Environment Conditions

    LGK-100.160.200IGBT OPERATOR’S MANUAL The cutter casing should ground reliably. Please make sure the grounding bolts of power ground reliably in case of electric shock. Cutter is the equipment with high voltage. Please wear insulated protective shield when cutting. When exchanging torch and wearing parts, please turn off the supply power first. Protective shield should be worn.

  • Page 9: Working Principles

    LGK-100.160.200IGBT OPERATOR’S MANUAL Rated input capability 17.8KVA 32.2KVA 46.5KVA Rated output current 100A 160A 200A Rated output voltage 120V 144V 160V Rated duty cycle 100% 100% 100% Open circuit voltage 275VDC 315VDC 315VDC Current adjusting range 30～100A 40～160A 40～200A Insulation level Quality cutting thickness（steel）...
  • Page 10 LGK-100.160.200IGBT OPERATOR’S MANUAL diode. This DC current is filtered through reactor, and the output cutting current is obtained. Control circuit can control output current by controlling driven pulse width. The real time cutting current, which is obtained through current sensor connected to output terminal in series, is used as negative feedback control signal.

  • Page 11: Panel And Functions

    LGK-100.160.200IGBT OPERATOR’S MANUAL controller Program control LGKAP1 broad Main control LGK7AP2 broad HF board WS(M)AP3 Arc striking board LGK7-AP6 GFR-200-08 LGK-100IGBT Air filter regulator GFR-300-10 LGK-160.200IGBT diagram 1 Common component list Panel and its functions （LGK-100 see Figure 3, LGK-160/200 see Figure 4） 1.
  • Page 12 LGK-100.160.200IGBT OPERATOR’S MANUAL 此 开 关 仅 作 保 护 用 弧压输 出 控制讯 号 请 另 配 电 源 开 关 ！ Arc Vol tage C ontr ol S ignal T hi s s wi tch is on l y us edfor Pro te ct i on ！ 指示灯...

  • Page 13: Protection Function Of The Cutter

    LGK-100.160.200IGBT OPERATOR’S MANUAL positive electrode. 15. Control signal connector: To control automatic cutting equipment 16. Power source switch: Control the ON/OFF of 3-phase power supply of cutter 17. Air pressure regulation filter：For adjusting work pressure of compressed air and filtrating water from air.

  • Page 14: Installation And Operation

    LGK-100.160.200IGBT OPERATOR’S MANUAL 1. Transport and Lift A. Power source should be shut off before moving the cutter. B. The cutter bottom should be kept downwards during transportation. It is forbidden to have cutter placed transversely or upended. C. When lifting, it must be lifted vertically. D.
  • Page 15 LGK-100.160.200IGBT OPERATOR’S MANUAL Gas pressure regulating valve Inlet pipe Hoop Draining water tip The compressed gas should meet the requirement mentioned in point “Plasma gas conditions”. Connect the gas pipe with the gas inlet of air filter on the back panel and hoop it tightly.
  • Page 16 LGK-100.160.200IGBT OPERATOR’S MANUAL Suitable current 20～ 30～ 40～ 70～ 80～ 110～ 140～ 180～ 220～ （A） Connection of air-cooled torch: first connect the torch cable connector M14 nut with the copper nozzle signed with Air& Power on the front panel, and screw down the nut; then connect the torch pilot wire to terminal signed with Pilot on the front panel and screw down the nut.
  • Page 17 LGK-100.160.200IGBT OPERATOR’S MANUAL Operation method a)Security Notes Operation strictly accordant with the following steps Notes Electric shock may Cutting may cause fire or explosion hurt or even kill •Splashes may ignite flammable materials nearby. Notice man. Those materials should be 10m away from the working place.

  • Page 18: Maintenance

    LGK-100.160.200IGBT OPERATOR’S MANUAL be pressed all the time during cutting. After loosening, the cutting comes to stop. At 4-Step point, press the torch switch and then loosen it, and cutting can start. User can make selection according to his operation habit. g) Checking the panel indicator lamps.
  • Page 19 LGK-100.160.200IGBT OPERATOR’S MANUAL material under the same thickness, the parameter should also be different. Nozzle selection The three main dimension of nozzle are the diameter of nozzleφ, the hole pass length ι and the compacted angle α, they all can affect the cutting. There should be a certain proportion ι...
  • Page 20 LGK-100.160.200IGBT OPERATOR’S MANUAL cutting speed include workpiece thickness, cutting current, air flux and nozzle aperture. A proper drag is allowed during cutting. The cutting speed should be increased as much as possible, but the incision quality must be guaranteed. Eliminate the cutting burr The characteristics of the incision burr The ordinary cutting surface is smooth and clean, but if the parameter selection is not suitable, and electrode centering is not good, then burr may be formed on the cutting...

  • Page 21: Troubleshooting And Repair

    LGK-100.160.200IGBT OPERATOR’S MANUAL the air blow force, and beneficial for eliminating burr. Adjust suitable air flux and cutting speed. If the air flux is too small, the blow force is not enough, while if too big, the plasma arc will be shorten, the incision will be “V” shape, the drag enlarge.
  • Page 22 LGK-100.160.200IGBT OPERATOR’S MANUAL 10) Open the machine top to check if the lead-typed fuse next to the control transformer has been fused； Ordinary trouble and repair as following diagram Trouble Reasons Solutions 1. When the power 1.Three-phase power misses phase 1.Check three-phase power source is switched on, the 2.Supply power switch is damaged...

  • Page 23: Accessories

    LGK-100.160.200IGBT OPERATOR’S MANUAL 1.fast recovery diode of secondary 1. change fast recovery diode under 8.no striking, rectifying is damaged. same model. guiding 2.current-limiting resistor 2. check and change the damaged R6,R7,R8 guiding current-limiting resistor of guiding arc. spraying out, there high damaged.
  • Page 25 The final explanation right is reserved to Huayuan Company! If there is any change in the manual, please forgive not to inform separately! Address: Wuhou National Science Park, Chengdu, China Postcode: 610045 Tel: 0086-28-85012443, 85011951, 85013964 Fax: 0086-28-85033444 E-mail: hy_sales@126.com http://www.hwayuan.com...

This manual is also suitable for:

Lgk-160gbtLgk-200gbt

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