Advertisement
Advertisement
Related Manuals for WARPP LGK-40
Summary of Contents for WARPP LGK-40
- Page 1 DC INVERTER AIR PLASMA CUTTING MACHINE LGK-40 Instruction Manual M/s WARPP ENGINEERS PVT. LTD. B-1005, WESTERN EDGE II, NEAR METRO MALL, OFF.WESTERN EXPRESS HIGHWAY, BORIVALI (E), MUMBAI-400 066. Tel:91-22-28542272/73/74. Fax: 91-22-28542275. Email:sales@warpp.co.in Website:www.warpp.co.in...
- Page 2 Introduction The cutting machine applies the advanced technology of inversion. Its principle is making the 50/60Hz line frequency inverted to high frequency (more than 100 kHz) with the V-MOSFET high power binistor, and then stepping down and rectifying to attain high power DC source through the pulse width modulation (PWM) technology.
-
Page 3: Table Of Contents
CONTENTS 1. MAJOR TECHNICAL PARAMETERS ................... 1 2. INSTALLATION ......................... 2 3. OPERATION ..........................3 4. PRECAUTIONS .......................... 4 5. MAINTENANCE ........................6 6. TROUBLESHOOTING ......................7... -
Page 4: Major Technical Parameters
1. Major Technical Parameters Model LGK-40 Parameters Input voltage（V） AC220V±10% Input power supply capacity （KVA） No-load voltage（V） Current adjustable range（A） 10-40 Rated output voltage（V） Rated duty cycle（%） ≥ 85 Efficiency Power factor cosø 0.93 Insulation level Casing protection level IP21... -
Page 5: Installation
2.2．Connection of the output lines power source abnormity indicator cutting current knob integrated electro-gas output cutting torch output terminal terminal to cutting torch switch connector to workpiece Figure 1. Control panel of LGK-40... -
Page 6: Operation
1. Connect the output terminal of the compressor and the input terminal (IN) of the pressure reducing valve with a gas pipe; there should be closed butt joint between the output terminal (OUT) and the copper tube on the back of the machine. -
Page 7: Precautions
5. Contact the copper nozzle of the cutting torch with the workpiece (if the copper nozzle carries with pilot arc, the distance between the nozzle and the workpiece is approximately 2mm), and press down the button on the cutting torch to ignite arc. Properly raise the cutting torch, making it about 1mm from the workpiece, and then cutting can be started. - Page 8 4. There is a ground terminal on the back of each welding machine, whose symbol is the earthing mark. Before working starts, connect the casing of the machine with the ground with a wire whose sectional area is 10mm to avoid static electricity or electric leakage that can cause failure.
-
Page 9: Maintenance
The electrode and nozzle should be replaced when: (1) The consumption depth of the hafnium wire of the electrode is over 1.5mm; (2) The diameter of aperture of the nozzle is irregularly out of shape; (3) The cutting speed obviously slows down and green flare emerges in the arc; (4) It is hard to strike arc;... -
Page 10: Troubleshooting
Note: The following operation requires that the operator have enough professional knowledge on electricity and overall elementary knowledge of safety. The operation should have the qualification certificate that can prove his ability and knowledge. Troubleshooting for LGK-40: Faults Correction actions The power LED shines Overvoltage protection.