Riland MMA 120GDM User Manual
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Riland MMA 120GDM User Manual

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USER MANUAL
MMA 120GDM/140GDM/160GDM

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Summary of Contents for Riland MMA 120GDM

  • Page 1 USER MANUAL MMA 120GDM/140GDM/160GDM...
  • Page 2 USER MANUAL - 0 - YF-29C A3...

  • Page 3: Table Of Contents

    CONTENTS SAFETY WARNING............................3 PRODUCT DESCRIPTION.........................8 TECHNICAL PARAMETERS........................9 INSTALLATION INSTRUCTION........................10 PANEL FUNCTION ILLUSTRATION......................13 OPERATION PARAMETER RECOMMENDATION...................16 CIRCUIT DIAGRAM...........................17 ATTENTIONS & PREVENTIVE MEASURES....................18 POTENTIAL OPERATING PROBLEMS....................20 DAILY MAINTENANCE..........................21 TROUBLESHOOTING AND FAULT FINDING..................22 DAILY CHECKING.............................23 USER MANUAL - 1 - YF-29C A3...
  • Page 4 USER MANUAL - 2 - YF-29C A3...

  • Page 5: Safety Warning

    SAFETY WARNING ● Please read this manual carefully before using it. ● The safety notes listed in this manual is to ensure correct use of the machine and to keep you and other people from being hurt. ● The machine is safety considered designed, please refer to the safety warning listed in the manual when using it in case of bad accidents.
  • Page 6 people with safety knowledge and technique to operate the machine. Danger! Please follow the rules below in case of electric shock: ＊Any contact of electric parts may cause fatal electric shock or burnt. 1. Don’t touch any electric parts. 2. Ask professional person to connect the machine and workpiece to the ground. 3.
  • Page 7 Danger! Please follow the below notes to avoid accidents like fire and explode: ＊Spark and hot workpiece can cause fire. ＊It may cause fire if the cable is not connected well or when the current circuit of the steel or other workpiece are not connected completely. ＊Do not weld on the case of tinder stuff, or it may cause explode.
  • Page 8 5. Do not put the cylinder under high temperature and sunshine. 6. Do not put your face close to the gas cylinder exit when opening it. 7. Put on the gas shield when not use. 8. Do not put the torch on the gas cylinder or touch the electrode. Notes! Any touch of the switch part will cause injury, please pay attention to the below notes: ＊...
  • Page 9 Notes for electromagnetism disturb: 1. It may need extra preventive measures when the power is used in some partial space. 2. Before the installation, please estimate the potential electromagnetism problems of the environment as follows: 1) Upper and down parts of the welding equipments and other nearby power cable, control cable, signal cable and phone cable.

  • Page 10: Product Description

    PRODUCT DESCRIPTION MMA 120GDM/140GDM/160GDM,with its MMA and LIFT TIG function, is a multi-function welding machine that applies the most advanced inversion technology in the world. The appearance of the invert TIG machine comes after the appearance of invert power theory and parts.

  • Page 11: Technical Parameters

    TECHNICAL PARAMETERS Type MMA120GDM MMA 140GDM MMA 160GDM Item Power voltage (V) 1 phase 1 phase 1 phase 230V  15% 230V  15% 230V15% Frequency (Hz) 50/60 50/60 50/60 Rated input current (A) 23.2 Output current adjustment (A) 40-120(MMA) 40-140(MMA) 40-160(MMA) 20-120(TIG)

  • Page 12: Installation Instruction

    Both ways can be used together for better security. MMA 120GDM/140GDM/160GDM Installation Procedures： 1、Correct Installation of LIFT TIG： 1) Connect the shielded-gas source correctly. The gas supplying route shall include gas cylinder, argon decompression flow meter and gas pipe.
  • Page 13 made, it will cause unstable arc, more spatters and conglutination. If such problems occur, please change the polarity of the fastened plug. It should adopt negative connection when welding with alkaline electrode, while positive connection when welding with acid electrode. This procedure shall be operated by electrician! Connect proper power cable to the distribution box with corresponding capacity according to the input voltage and current (See technical parameter table).
  • Page 14 Explanatory drawing for Installation of MMA 120GDM/140GDM/160GDM(LIFT TIG): Gas meter Power Supply ( 1 phase~AC230V) Argon cylinder Connect to ground Earth clamp Work piece TIG torch Explanatory drawing for Installation of MMA 120GDM/140GDM/160GDM (STICK): Gas meter Power Supply (1 phase~AC230V)

  • Page 15: Panel Function Illustration

    PANEL FUNCTION ILLUSTRATION Front panel instruction： ① Over-current/over heat indicator light ② Multifunctional data adjusting knob (coarse adjustment by pressing the knob and turning it, the regulating range is big and speed is high; fine adjustment by turning the knob only:, the regulating range is small and speed is low) ③...
  • Page 16 【 Welding current display 】 shows the preset current“080 ”, its unit is ampere(A),and the current adjustment range is 10A-120A for MMA 120GDM, 10A-140A for MMA 140GDM, while 10A-160A for MMA 160GDM. Operation instruction under LIFT TIG mode. When welding stops, press the【STICK/LIFT TIG switch key】,the LIFT TIG indicator lights up, and it turns into LIFT TIG mode, the front panel displays as Chart 3.
  • Page 17 until the internal temperature above 45°C. And it will stop working when the temperature is less than 35°C. Malfunction display： Malfunction display of overheating protection The panel displays as Chart 6 when overheating, and the 【 multifunctional data display 】 flashes continuously, the machine can not work normally.

  • Page 18: Operation Parameter Recommendation

    OPERATION PARAMETER RECOMMENDATION 1：Generally, welding current is adequate to welding electrode according with as following. Electrode φ2.5 φ3.2 φ4.0 φ5.0 specification welding current 70-100A 110-140A 170-230A 230-280A 2： Welding variables when use TIG. TIG welding specifications of stainless steel as follows Thickness Tungsten Wire diameter...

  • Page 19: Circuit Diagram

    CIRCUIT DIAGRAM - 17 - USER MANUAL YF-29C A3...

  • Page 20: Attentions & Preventive Measures

    ATTENTIONS & PREVENTIVE MEASURES Environment 1） The machine works in environment where air conditions are dry with a dampness level of max 90%. 2） Ambient temperature should be between -10 to 40 degrees centigrade. 3） Avoid welding in sunshine or raining. Avoid water entering the machine 4）...
  • Page 21 power plug since the internal fan can work to cool down the machine. When the over heat indicator stops, the temperature has been lowed down to standard range, operator is able to starting working again. No over voltage！ 3） Power voltage can be found in diagram of parameters. Automatic compensation circuit of voltage will assure that welding current keeps is in allowable range.

  • Page 22: Potential Operating Problems

    POTENTIAL OPERATING PROBLEMS The phenomenon listed below may happen due to relevant accessories used, welding material, surroundings and power supply. Pleas improve surroundings and avoid these problems.. 1. Arc starting difficulty. Arc interruption happens easily。 1) Examine whether grounding wire clamp contacts with the work pieces well. 2) Examine whether each joint has improper contact.

  • Page 23: Daily Maintenance

    DAILY MAINTENANCE WARNING! The power shall be cut off completely before all maintenance, repairing works. Make sure to pull out power plug before opening the case. 1. Remove dust regularly with dry compressed air. If the welding machine is used in surroundings with heavy smoke and polluted air, it is necessary to remove dust at least one time one month.

  • Page 24: Troubleshooting And Fault Finding

    TROUBLESHOOTING AND FAULT FINDING Notes: The following operations must be performed by qualified electricians with valid certifications. Before maintenance, you are suggested to contact local distributor to verify qualification. Malfunctions and solutions of MMA 120GDM/140GDM/160GDM: Malfunctions Solution The meter shows nothing;...

  • Page 25: Daily Checking

    DAILY CHECKING WELDING POWER Position Checking keys Remarks Operation 1.Operation, conversion and installation of the Lead to unstable arc and wire sending control board switch 2.Check the state of the power indicator light Cool-down fan Check if the fan state and the sound is normal of Clean the residue and check the reason and solve it Power part...

This manual is also suitable for:

Mma 160gdmMma 140gdm

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