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Troubleshooting
Related Manuals for LOKERMANN GRAND TIG 200 DC
Summary of Contents for LOKERMANN GRAND TIG 200 DC
- Page 1 USER MANUAL INVERTER Based Welding Machines GRAND T I G 2 0 0 D C IMPORTANT: Read this OPERATOR MANUAL together with PRESCRIPTION AND COMPLIANCE MANUAL before to use this equipment. In case of loss one of two parts contact immediately your dealer. Allow the operator to consult this manual.
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Page 2: Table Of Contents
CONTENT 1 INSTALLATION WARNING 2 OVERVIEW 2.1 Features 2.2 Technical Data 2.3 Brief Introduction 2.4 Duty cycle and Over-heat 2.5 Working Principle 2.6 Volt-Ampere Characteristic 3 INSTALLATION & OPERATION 3.1 Layout for the front and rear panel 3.2 Power supply input Connection 3.3 Installation &... -
Page 3: Installation Warning
INSTALLATION WARNING Installation This machine is certified according to 60974-10:2014 Arc Welding Equipment Part 10: Electromagnetic compatibility (EMC) requirement and the EUT belongs to Group 2 Class A. warning WARNING: This Class A equipment is intended for industrial use and it is not intended for use in residential locations where the elctrical power is provided by the public low-voltage supply system. -
Page 4: Overview
Equipped with temperature, phase loss protection; voltage and current sensors for high protection. Weight Extremely low weight and versatility. Generator friendly Designed to work with diesel generators and to avoid failures due to its voltage spikes. Technical Models GRAND TIG 200 DC Parameters Data Power Supply Voltage (V) 1~220V/230V/240V±10% Frequency(HZ) 50/60... -
Page 5: Brief Introduction
Brief Introduction GRAND TIG 200 DC adopts the latest Pulse Width Modulation (PWM) technology and the Insulated Gate Bipolar Transistor (IGBT) power modules. It uses switching frequencies in the 20KHz-50KHz ranges so as to replace the traditional line-frequency transformer type welding machines. Thus, machines are characterized with portability, small size, lightweight, low energy consumption and noise, etc. -
Page 6: Working Principle
Working Principle The working principle of GRAND TIG 200 DC is shown in the following figure. Single-phase 220V line frequency AC is rectified into DC (about 315V), then is converted to medium frequency AC (about 40KHz) by inverter device (IGBT), after reducing voltage by medium transformer (the main transformer) and rectified by medium frequency rectifier (fast recovery diode), and is outputted by inductance filtering. -
Page 7: Installation Operation
Installation （1） “-” Output terminal. & （2） TIG torch remote connection socket. Operation （3） TIG torch gas connector. （4） “+” Output terminal. （5） Power switch: control the power Supply on and off. Layout for （6） Input power cable. the front （7）... -
Page 8: Installation & Operation For Mma Welding
Installation & Connection of Output Cables Two sockets are available on this welding machine. For MMA welding the electrode holder is shown be connected to the positive socket, while the earth lead (work piece) is Operation connected to the negative socket, this is known as DCEP. However various electrodes require a different polarity for optimum results and careful attention should be paid to the polarity, refer to the for MMA electrode manufacturers information for the correct polarity. -
Page 9: Operation For Mma Welding
3.3.2 Operation for MMA According to the above method to install is correct, turn the power switch, so that the power switch is “ON” position, then the power indicator light, the fan comes on, the device work properly. Welding Select the MMA function with the 4T/2T/MMA selector switch. Set the required output current by turning the current control knob . -
Page 10: Mma Welding Trouble Shooting
The covering on a shielded metal arc welding electrode is called Flux. The flux on the electrode performs many diferent functions. These include: ● producing a protective gas around the weld area ● providing fluxing elements and deoxidizer ● creating a protective slag coating over the weld as it cools ●... -
Page 11: Installation & Operation For Tig Welding
Installation & Operation for TIG Welding 3.4.1 Set up installation for TIG Switch the ON/OFF Switch (located on the rear panel) to OFF. Welding Connect the earth lead to “+”, tighten clockwise; Connect the earth clamp to the work piece. Contact with the work piece must be firm contact with clean, bare metal, with no corrosion, paint or scale at the contact point. -
Page 12: Tig Gun Control
3.4.3 TIG GUN TIG GUN (TIG-17) Control 12 Pin Remote Plug Connection 3.4.4 Tig Welding Techniques DC TIG Welding The DC power source uses what is known as DC (direct current) in which the main electrical component known as electrons flowin only one direction from the negative pole (terminal) to the positive pole (terminal). - Page 13 The intensity of the arc is proportional to the current that flows from the tungsten. The welder regulates the welding current to adjust the power of the arc. Typically thin material requires a less powerful arc with less heat to melt the material so less current (amps) is required, thicker material requires a more powerful arc with more heat so more current (amps) are necessary to melt the material.
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Page 14: Electrodes
3.4.5 Electrodes Tungsten Preparation Always use DIAMOND wheels when grinding and cutting. While tungsten is a very hard material, the surface of a diamond wheel is harder, and this makes for smooth grinding. Grinding without diamond wheels, such as aluminium oxide wheels, can lead to jagged edges, imperfections, or poor surface finishes not visible to the eye that will contribute to weld inconsistency and weld defects. -
Page 15: Tig Welding Trouble Shooting
3.4.6 TIG Welding trouble The following chart addresses some of the common problems of TIG welding. In all cases of equipment malfunction, the manufacturer’s recommendations should be strictly adhered shooting to and followed. Trouble Possible Reason Suggested Remedy Use pure Argon. Check cylinder has Incorrect Gas or No Gas gas, connected, turned on and torch valve is open... -
Page 16: Operation Notices
Operation Notices ▲ Read Section PRESCRIPTIONS AND COMPLIANCE carefully before starting to use this equipment. ▲ Connect the ground wire with the machine directly. ▲ Ensure that the input is single-phase: 50/60Hz, 230V ±10%. ▲ Before operation, none concerned people should not be around the working area and especially children. -
Page 17: Troubleshooting
Troublesho- Before the welding machines are dispatched from the factory, they have already been tested and oting calibrated accurately. It is forbidden for anyone who is not authorized by our company to do any change to the equipment! Maintenance course must be operated carefully. If any wire becomes flexible or is misplaced, it maybe potential danger to user! Only professional maintenance staff that isauthorized by our company could overhaul the machine! Be sure to shut off the Main Input Power before doing any repair work on the welding machine! -
Page 18: List Of Error Code
List of error code Error Type Error code Description Lamp status Yellow lamp(thermal Over-heating(1st thermal relay) protection) always on Yellow lamp(thermal Thermal relay Over-heating(2nd thermal relay) protection) always on Yellow lamp(thermal Over-heating(Program in default) protection) always on Yellow lamp(thermal Phase loss protection) always on Yellow lamp(thermal Under voltage... -
Page 19: Electrical Schematic Drawing
Electrical schematic drawing... - Page 20 LOKERMANN Srl, Via Produzione 16/18, 37044, Cologna Veneta, (VR)-Italy, Tel: +39 0442 1722469 lokermann@lokermann.eu - www.lokermann.eu...