LOTOS TECHNOLOGY Plasma Cutter LT5000D www.uwelding.
Lotos Technology LT5000D Quick Setup Instructions Power plug wiring identification: For either 110 or 220VAC, the GREEN wire with the yellow strip is ground wire. The other two wires are hot wires. 1. Wear a proper helmet (Figure 1.1) to protect your eyes from harmful plasma cutting arc radiation. Wear safety gloves to protect your hands during operation. Figure 1.1 2. Connect the machine gas inlet (on the back of the machine, Figure 1.2) to an air compressor (Figure 1.3 & 1.
. Connect your plasma cutting torch and ground cable to the front panel of the machine (Figure 1.5) . Air/Power Output 3-pin Switch Plug Ground Cable Figure 1.5 4. Attach the ground clamp to the metal work piece that you plan to cut. Grind the metal to make sure the clamp is securely attached. Press the trigger of the torch and make sure there is air flow. Finally, move the torch head to the work piece and enjoy cutting!! 5. Change your consumables (tip, electrode, and cup) when they become worn out.
LOTOS Plasma Cutters User Manual Version: 2.0, May 2014 copyright @ Lotos Technology www.uwelding.
Table of Contents Introduction 3 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Safety Precautions 4 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction Overview Dear Valued Customer: Thank you for purchasing a Lotos Technology plasma cutter! Feel free to check out our other products at www.uwelding.com. The User Manual documents policies and procedures for proper operation of the equipment. IMPORTANT: Be sure to review the contents of this manual before attempting to operate the equipment. This manual should be located where it can be easily referenced by all users of the machine.
Safety Precautions - Read Before Using Overview Protect yourself and others from injury — read and follow these precautions. Caution Recommendations CAUTION: Welding and arc cutting can cause bodily injury. • Do NOT switch off the machine while machine is in operation for internal circuitry can be damaged. • Connect the machine to a UL-approved outlet only. Do not hard wire the machine directly to the power source. • Wear safety goggles at all times.
Welding or Cutting can cause Fire or Explosion. Welding, cutting, and allied processes can cause fire or explosion if precautionary measures are not followed. • Remove combustible materials from a sphere with a minimum radius of 35 feet around the work area or move the work to a location well away from combustible materials. • Develop adequate procedures, and use proper equipment to do the job safely. Burn Protection: HOT PARTS can cause serious burns. The work piece and equipment get hot.
Equipment General Overview The LT5000D employs state of the art inverter technology. 50/60Hz frequency is inverted to high frequency (over 100 KHz) by V-MOSFET followed by step down voltage and rectification current. Using Pulse-Width-Modulation (PWM) technology, the inverter power supply generates powerful DC welding currents. By applying switch power inverter technology, the dimensions and weight of the main transformer is significantly reduced; while efficiency is increased by 30%.
Torch Type Torch Type Model Amperage 3 prong LCON cutting torch CL0103 50 Extended 3 prong LCON cutting torch CL0203 50 Consumable Type LCON0120 LCON0140 LCON0190 LCON0220 LCON0240 LCON0290 Consumables Package Part Number Nozzle Electrode Shield Cup Swirl Ring Package Type Total Pieces LCON0120 LN01 LE01 LC01 LR01 LN01 x 10, LE01 x 10 20 LR01 LN01 x 10, LE01 x 10, LR01 x 10, LC01 x 10 40 90 LCON0140 LN01 LE01 LC01 LCON0190 LN01 LE01 LC01 LR01 LN01 x 40, LE01 x 20, LR01 x
Production Cut Chart Material Mild Steel Stainless Steel Aluminum Thickness* Current inches mm amps 10 gauge 3 50 1/4 3/8 1/2 5/8 10 gauge 1/4 3/8 1/2 1/8 1/4 3/8 1/2 6 10 12 16 3 6 10 12 3 6 10 12 50 50 50 50 50 50 50 50 50 50 50 50 *Production cut thickness are the results of Lotos’ laboratory testing. Production speeds are approximately 80% of maximum. For optimum cut quality, cutting speeds may vary based on different cutting applications.
Cutting Current Adjust Power Switch Problem Indicator LED Power & Air Output Switch Plug Ground Connection Power Cable Figure 2.1: Adjustor Diagram Gas Inlet Figure 2.2: Power Cord Plug Connection Figure 2.
Ground Air Compressor Filter Air/ Power Output Ground Clamp 3-pin Switch Plug Work Piece Torch Figure 2.
Installation Power Cord Plug Connection (Figure 2.2) 1. Be sure to connect the power cord plug to the appropriate power voltage and use a proper hookup to avoid damage to internal circuitry. Typically, the ground wire is GREEN with a YELLOW stripe. 2. Ensure that the power cord is properly connected to the power switch to prevent oxidation. Make sure the power voltage is within the specified safety range. 3.
Operating the Plasma Cutter 5. Adjust the air pressure on your air compressor to 60 – 65 psi for the machine. 6. Bring the torch tip into direct contact with your work piece edge or, for thicker cutting, over a pre-drilled pilot hole. Press the button on the torch to start cutting. 7. Ensure that the cutting current is appropriate and adequate for the machine based on the rated thickness of the cutter. Note: Below is the consumable assembly on the torch head (Figure 3.1).
Instruction Notes Cutting Environment 1. The cutting machine can perform in an environment where conditions are particularly harsh: it can withstand outside temperatures between 14 and 104 degrees Fahrenheit and a humidity level of up to 80%. 2. Please try to keep machine dry. Safety 1. Working area MUST be adequately ventilated. 2. No over-load! Your machine can be damaged by over-loading. 3. No over-voltage! Internal circuitry can be damaged by over-voltage. 4.
The following trouble shooting guide is for your reference only. Lotos Technology will NOT take any liability or responsibility for any injury or damage caused in such action(s). Always turn off electrical power and air supply before performing inspection and reconnection. CAUTIONS: Only qualified technicians are authorized to undertake the repair of this equipment in the case of machine failure. Faults Possible Causes/Solutions 1. The power pilot light is off, 1. The power switch is broken.
Plug Wiring Instruction Do not attempt to wire or handle high voltage without proper training. Contact an electrician to help you install an electrical outlet or connect an electrical plug to your machine. Regardless of which machine you have, it will require power to operate properly. Do not assume you know which wires to connect until you read this manual completely as colors may be deceiving. All of our machines are either 110VAC or 220VAC.
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