Summary of Contents for HUAYUAN ELETRIC ZX7-250 SERIES
- Page 1 ZX7-MA operator’s manual ZX7-250、315、400MA SERIES MA INVERTER DC ARC WELDING MACHINE OPERATOR’S MANUAL (PLEASE READ CAREFELLY BEFORE OPERATION). CHENGDU HUAYUAN ELETRIC EQUIPMENT CO., LTD. - 1 -...
- Page 2 ZX7-MA operator’s manual Safety Depends on You Huayuan arc 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 on your part. DO NOT INSTALL, OPERATE OR REPAIR THIS EQUIPMENT WITHOUT READING THIS MANUAL AND THE SAFETY PRECAUTIONS CONTAINED THROUGHOUT.
- Page 3 ZX7-MA operator’s manual a. Remove fire hazards from the welding area. If this is not possible, cover them to prevent the welding sparks from starting a fire. Remember that welding sparks and hot materials from welding can easily go through small cracks and openings to adjacent areas.
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Page 4: Table Of Contents
ZX7-MA operator’s manual CONTENTS 1. Summery -------------------------------------------------------5 2. Work conditions & environments--------------------------5 3. Product Specifications ---------------------------------------6 4. Constructions and Functions Description----------------6 -Installations------------------------------------------------------8 5. Operations------------------------------------------------------9 6. Maintenance---------------------------------------------------9 7. Troubleshooting & repair-----------------------------------10 8. List of packing-------------------------------------------------10 9. Diagram of the main electric principle -------------------11 - 4 -... -
Page 5: Summery
ZX7-MA operator’s manual 1. Characteristics 1.1General Description ZX7–MA Series MA inverter AC arc welding machines can use all types of welding electrode, especially suitable for low-hydraulic electrode to weld carbon steel and mid-carbon steel. , which is mainly used in electric power build, chemical industry, oil field construction, etc. -
Page 6: Product Specifications
ZX7-MA operator’s manual 2.2.3Around working location, dust, corrosive gas and materials don’t exceed the normal content. 2.2.4Should be used in the place where the sea level is less than 1000m. 2.2.5 Wind speed must be less than 1m/s at working location 2.2.6Keep in dry and ventilation, avoid directly sunshine and rain. - Page 7 ZX7-MA operator’s manual 4.2 Electric theory block diagram Input High Inverter rectified Filter 3~380V Output frequency frequency circuit Choke rectifier transformer Pulsed Losing voltage, Auxiliary Amplifying driving over heat circuit transfor circuit short load circuits Arc force Givin circuit circuit Figure 1.
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Page 8: Installations
ZX7-MA operator’s manual 4.4 Spare parts list Name Model Note MDS35-14 ZX7-250MA 3-phase bridge MDS50-14 ZX7-315MA rectifier MDS75-12 ZX7-400MA MA tube IKW40N120T2 ZX7-250、315MA V2～V3 MA module GD75HFV120C1S ZX7-400MA MMF300ZB040DK1 ZX7-250MA V4、V5 diode MMF200ZB040DK1 ZX7-315、400MA ZX7-250、315、 Hall sensor TKC500BR 400MA DZ47-63/3P D25 ZX7-250、315MA Air switch DZ47-40/3P D40... -
Page 9: Operations
ZX7-MA operator’s manual 6. Operations 1、数显表 2、过热指示灯 3、欠压指示灯 4、电源指示灯 过热 欠压 电源指示 5、焊接电流调节旋钮 OVERLOAD LOWINPUT POWER 6、推力电流调节旋钮 7、引弧电流调节旋钮 华远焊机 HUAYUAN WELDER 焊接电流 推力电流 引弧电流 Welding current Arc force Hot current Panel instruction: 1. Digital meter 2. Over heat indicator 3. Lack-voltage indicator 4. -
Page 10: Troubleshooting & Repair
ZX7-MA operator’s manual 8. Troubleshooting & Repair TROUBLE (SYMPTOMS) CAUSE WHAT TO DO 1.welder turn on power, 1.Three phase rectifier was damaged 1. change the rectifier； the power switch trips 2.the capacitor which parallel the 2.change the damaged capacitor. three phase rectifier was damaged. 2 .no output current 1. -
Page 11: Diagram Of The Main Electric Principle
ZX7-MA operator’s manual ＋ - 11 -...
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