Amada ML-5020BW Operation Manual

Amada ML-5020BW Operation Manual

Direct diode laser
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DIRECT DIODE LASER
ML-5020BW
OPERATION MANUAL
AA04OM1208535-06

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Summary of Contents for Amada ML-5020BW

  • Page 1 DIRECT DIODE LASER ML-5020BW OPERATION MANUAL AA04OM1208535-06...
  • Page 2: How To Use This Document

    How to Use This Document Thank you for purchasing our Direct Diode Laser ML-5020BW. This operation manual explains its method of operation and precautions for use. Before using, read this operation manual carefully; after reading, save it in a proper place for your future reference.
  • Page 3: Table Of Contents

    3. Functions of the ML-5020BW ........
  • Page 4 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 ML-5020BW...
  • Page 5: For Use In Safety

    This product incorporates parts containing gallium arsenide (GaAs). Do not look into or reach into the light path while the LD is turned on . Fluorescence emission can cause burn or blindness. Wear protective glasses while the LD is turned on. ML-5020BW...
  • Page 6 Those who use a pacemaker must not approach the Laser or walk around the processing shop while the Laser is in operation, without being permitted by his/her medical doctor. The Laser generates a magnetic field and has effects on the operation of the pacemaker while it is turned ON. ML-5020BW...
  • Page 7 Surface flash and expulsion can burn the skin if they touch the skin. Keep a fire extinguisher nearby. Keep a fire extinguisher in the processing shop in case of fire. Maintain and inspect the Laser periodically . Maintain and inspect the Laser periodically, and repair any damage before starting operation. ML-5020BW...
  • Page 8: Precautions For Handling

    * For other information on managing laser equipment or the MPE level, refer to the follow- ing standards. Japanese Industrial Standards JIS C 6802 “Safety of Laser Products” Notification by the Ministry of Labor No. 0325002 “Laser Damage Prevention Mea- sures” ML-5020BW...
  • Page 9: For Transportation

    For Disposal This product incorporates parts containing gallium arsenide (GaAs). At the time of disposal, separate it from general industrial waste or domestic waste and carry out the disposal in accordance with applicable laws and regulations. ML-5020BW...
  • Page 10: Cautions For Export

    For details, please visit the Security Export Control’s website or contact the Security Export Licensing Division, Ministry of Economy, Trade and Industry directly. Security Export Control’s website of Ministry of Economy, Trade and Industry http://www.meti.go.jp/policy/anpo/index.html Security Export Licensing Division, Ministry of Economy, Trade and Industry Phone: +81-3-3501-2801 ML-5020BW...
  • Page 13: Introduction Part

    When the output unit is provided with a CCD camera, cross lines are generally displayed on the monitor and the cross point of these cross lines is an irradiation point. In this laser, a red point appears on the workpiece when guide light is output. ML-5020BW...
  • Page 14: Mechanism Of The Direct Diode Laser

    Laser light can be transferred to a place remote from the main unit by opti- cal fiber, so that only the optical fiber and output unit can be mounted in the manufac- turing line for processing. Direct Diode Laser Configuration Optical fiber FC-LD Output unit Workpiece Power supply ML-5020BW...
  • Page 15: Functions Of The Ml-5020Bw

    3 . Functions of the ML-5020BW 3 . Functions of the ML-5020BW ⇒ Direct diode laser oscillation function ■ The laser is capable of processing workpieces under a small spot diameter. ■ The laser employs an LD, which significantly reduces the number of required maintenance operations.
  • Page 16: Product Composition

    For the latest parts information, contact a near- est sales office. Product name Model No . Q’ty Direcr Diode Laser ML-5020BW Cable with a round-type connector (2 m) *1 AS1178984 Protective glasses YL-717 Fiber Laser Operation manual...
  • Page 17 Main unit Provided with optical fibers. Model Specification Length of optical fiber ML-5020BW Simultaneous output to 2 fibers Output unit The output unit with the specification that you selected at the time of purchase is con- nected to the main unit.
  • Page 18 W 1 : 5 . 0 0 W 2 : 5 . 0 0 s e c W 1 : 1 1 . 5 0 A W 2 : 1 1 . 5 0 A CONTROL POWER CURR2 CURR1 LASER START/STOP MENU READY LASER ERROR Direct Diode Laser EMISSION ML-5020BW Output Unit FOCH-30C series ML-5020BW...
  • Page 19: Chapter 2 Name And Functions Of Each Section

    RESET (clockwise), the button is reset to STOP Button the initial state. (5) READY Lamp Lights up when laser is ready for outputting. (6) LASER Lamp Indicates that laser is being output. (7) ERROR Lamp Indicates that an error occurs. ML-5020BW...
  • Page 20: Control Panel

    If you press the button while the READY lamp is lighting up, laser light is START/STOP output. If the button is pressed again while laser light is output, the output (Button) is stopped. EMISSION When the LD is turned on, the EMISSION lamp comes on. ( Lamp) ML-5020BW...
  • Page 21: Name And Function Of Each Section On The Rear Side

    Outputs an analog signal input to the TH connector between 0 to 5 V. (BNC) nector (8) LDMON Con- BNC connector used to output an analog signal representing the LD current waveform. When viewing the current waveform, connect to an oscilloscope. nector (1 A = 0.33 V) ML-5020BW...
  • Page 25: Installation And Preparation Part

    For the power supply side, we earnestly recommend using a leakage breaker with the rated current of 5 A or more, which is applicable to harmonics and surg- ⇒ Perform class D grounding work (Ministry of Economy, Trade and Industry "Tech- nical Standards for Electric Equipment"). ML-5020BW...
  • Page 26: Space Required For Installation

    Avoid such a sudden temperature change if possible. When there is a possibility of condensation, turn ON the power supply of the laser. In about 2 hours, start to operate the laser. ML-5020BW...
  • Page 27: Fixing The Laser Equipment

    The L-shaped bracket at the right and left sides of the front of the laser main unit is for preventing displacement. The laser main unit cannot be supported with the L-shaped bracket only. Be sure to install the L-shaped bracket or the floor panel to receive. ML-5020BW...
  • Page 29: Chapter 2 Connections And Preparations Of Each Section

    5 .5 sq EXT. I/O RS-485(1) M A I N E-STOP RS-485(2) A C I N P U T ( 1 φ ,A C1 00 -2 20 V, 5 0 - 6 0 Hz ) THMON2 THMON1 LDMON2 LDMON1 ML-5020BW...
  • Page 30: Connecting The Optical Fiber

    (3) Turn the outer-side nut of the plug in the direction of the arrow to fix the optical fiber. ⇒ Tighten the nut by hand without using a tool. ⇒ The connector section cannot be bent. Take care not to give excessive force to this section. ML-5020BW...
  • Page 31 2 . Connecting the Optical Fiber Output unit Approx . 40mm Optical fiber Connector section ⇒ Keep the recover cap in a clean place in custody. If a dirty cap is mounted again, this will cause seizure. ML-5020BW...
  • Page 32: Connecting The Cable For The Heat Detector

    TH1 and that of the output unit connected to the fiber 2 to TH2. EXT. I/O RS-485(1) M A I N E-STOP RS-485(2) A C I N P U T ( 1 φ ,A C1 00 -2 20 V, 5 0 - 6 0 Hz ) THMON2 THMON1 LDMON2 LDMON1 ML-5020BW...
  • Page 35: Operating Part

    CTRL to PANEL on the SYSTEM screen. Control by External Input/Output Signals (EXT) When the PLC or the like is connected to the main unit and CTRL on the SYSTEM screen is set to EXT, the control by external input/output signals (EXT) is selected. ML-5020BW...
  • Page 36: Start And Stop

    How to Stop the Laser Operating Procedure (1) Turn OFF the LD. (2) Turn OFF the CONTROL keyswitch and pull out the key. (3) Turn OFF the MAIN switch. ⇒ The laser safety supervisor takes charge of the key of the CONTROL keyswitch. ML-5020BW...
  • Page 37: Chapter 2 Various Settings

    Pressing the MENU key switches the screen on the control panel over to the SCH screen, MONITOR screen, COUNTER screen, SYSTEM screen, and LD screen in this order. SCH 1 Screen When the MENU key is pressed SCH 2 Screen MONITOR Screen COUNTER Screen SYSTEM Screen LD Screen ML-5020BW...
  • Page 38: Sch 1 Screen

    Sets the down-sloping (the laser output becomes gradually weaker) for the last FLASH. Sets the LD current value for W1 in the range of 00.75 to 11.50 A. Sets the LD current value for W2 in the range of 00.75 to 11.50 A. LD current value LD current time ML-5020BW...
  • Page 39: Sch 2 Screen

    When the temperature change is large and hard to read, increase the setting to smooth the variation. Moving average Moving average Setting Setting time time 0.001 s 0.05 s 0.002 s 0.1 s 0.005 s 0.2 s 0.01 s 0.5 s 0.02 s 1.0 s ML-5020BW...
  • Page 40 ⇒ The time between the start signal and the LD current output is about 80 ms. However, it becomes 130 ms at the first shot after the power supply is turned on or after the sensor setting is changed. ML-5020BW...
  • Page 41 Temperature level sensor Current output is turned off by temperature upper limit alarm after WELD2. LD current output (LD1,LD2) UP SLOPE WELD1 SLOPE WELD2 DOWN SLOPE LD current 100ms Solder feeding signal * Similarly in CURR and STOP controls 100ms ML-5020BW...
  • Page 42: Monitor Screen

    GOOD Displays the appropriate number of laser light outputs. Move the cursor to the beginning of the value and press the + key for 3 seconds to reset the value. Displays the accumulated emission time of LD. ML-5020BW...
  • Page 43: System Screen

    Refer to page 53.) 1or2: LD2 in the external control (Refer to page 54.) GID1/GID2 Sets the guide light of LD1/LD2 to ON or OFF. When laser light is output with guide light ON, guide light is turned off automatical- ML-5020BW...
  • Page 44: Ld Screen

    (50.0 to 100.0%*) to adjust the output. * The lower limit should be more than 0.75 A. To measure the later output, install the power meter at the end of the output. ML-5020BW...
  • Page 45 2 reaches the target temperature 1or2 OK, stopping laser outputs from both LDs when either of the heat detector 1 LD1, LD2 and 2 reaches the target temperature KEEP CURR operation CURR operation 1&2 CURR operation 1or2 CURR operation ML-5020BW...
  • Page 46 Occurrence of an error for LD to which the heat detector is not connected, E12 when both LDs are connected 1&2 OK (independent control) LD1, LD2 1or2 OK, independent control when LD1 and LD2 are simultaneously used LD1, LD2 ML-5020BW...
  • Page 47: Chapter 3 Laser Processing By Control Panel (Panel)

    GID1/GID2 (guide light output) Screen PRE: ON (LD power supply ON) SCH 1/2 Screen SCHEDULE number input MONITOR Screen Pressing the LASER START/STOP button Laser light output MONITOR LD average current check Screen CONTROL keyswitch OFF MAIN switch OFF ML-5020BW...
  • Page 48: Control Panel Functions

    If you press the button while the READY lamp is lighting up, laser light is START/STOP output. If the button is pressed again while laser light is output, the output (Button) is stopped. EMISSION When the LD is turned on, the EMISSION lamp comes on. (Lamp) ML-5020BW...
  • Page 49: Operating Procedure

    It is convenient if you enter the set output schedules in the Appendix “Output Schedule Data Entry Table” in advance. ⇒ For the details of setting items, refer to “Welding Schedule Setting Screen” on page 37. ⇒ The unit of time setting depends on the setting of “TIME” on the SYSTEM screen. ML-5020BW...
  • Page 50   (6) Press the ENT key to establish the set value. <No te> The set welding schedule is not established until ENT key is presssed . When com- pleting setting, be sure to press the ENT key . ML-5020BW...
  • Page 51 Laser light is output. Guide light stops automatically. (8) Press the MENU key to display the MONITOR screen, and check the LD average current value (A) of the output laser light.      °    ML-5020BW...
  • Page 52 (3) Turn OFF the MAIN switch. The power supply is turned OFF and the POWER lamp goes out. ⇒ Return the key of the CONTROL keyswitch to the laser safety supervisor so that it can be kept in custody. ML-5020BW...
  • Page 53: Chapter 4 Laser Processing By External Input/ Output Signals (Ext)

    (PANEL) Switch the control method. Control by external input/output signals (EXT) Output schedule input Guide light output LD power supply ON Laser light output/stop (Emergency stop) End of operations CONTROL keyswitch OFF MAIN switch OFF ML-5020BW...
  • Page 54: Preparations For Operations

    E-STOP A-03376-001 ⇒ Prepare a program and its development environment for laser control on the cus- tomer side. ⇒ Do not connect the shielded portion to FG (frame ground) inside the laser equip- ment when using the shielded cable. ML-5020BW...
  • Page 55: Connector Functions

    (in) Laser output preparation command (in) Laser stop (in) Panel lock Solder feeding (out) Monitor trouble (out) (in) Schedule 16 (in) Schedule 8 End (out) (in) Schedule 4 (in) Schedule 2 Trouble (out) (in) Schedule 1 Ready (out) (in) Laser start ML-5020BW...
  • Page 56 0 V (pin No.17). 0 V OUT When using the internal power source, connect it to +24 V OUT (pin No.16). When using the external power source, connect it to +24 V. Input COM Input COM ML-5020BW...
  • Page 57 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ML-5020BW...
  • Page 58 Do not connect anything. Unused Do not connect anything. Unused Do not connect anything. Unused Do not connect anything. Output COM Output COM Type of output: Photo MOS relay output Rating of output: 24 V DC, 20 mA max. ML-5020BW...
  • Page 59 When the section between pin No.2 (emergency stop input) and pin No.7 (emer- gency stop input) is put in an open circuit, the laser is put in an emergency stop status and the power supply of the laser is cut off. E-STOP connector Inside of the laser Emergency stop +24V 15mA ML-5020BW...
  • Page 60 The section between pin No .2 and pin No .7 of the attached connector is short-circuit- ed by soldering before shipment . Be sure to mount the connector even when not us- ing the emergency stop input . E-STOP connector Inside of the laser 24V DC Contact rating 30 V DC, 3 A ML-5020BW...
  • Page 61: Example Connections Of External Input/Output Signals

    Example Connections of External Input/Output Signals An example of external input/output signal connections is explained below . Ex.: When using the internal power source Connect between 16 and 17. Inside of ML-5020BW +24V OUT (16) Ex.: When using the external power source...
  • Page 65: Maintenance Part

    ■ Turning ON the power supply for a operation check during maintenance puts the laser in oscillation . Take extreme care about it . ■ The operator and those who may receive laser light during maintenance must put on protective glasses . ML-5020BW...
  • Page 66: Cleaning The Cover Hole

    M A I N E-STOP RS-485(2) A C I N P U T ( 1 φ ,A C1 00 -2 20 V, 5 0 - 6 0 Hz ) THMON2 THMON1 LDMON2 LDMON1 Side (similarly also on the opposite side) ML-5020BW...
  • Page 67: Chapter 2 Inspection And Measure To Be Taken At Occurrence Of An Error

    The thermostat of the LD unit is actuated. Turn off the CONTROL keyswitch and turn it on LD OVER HEAT again to reset. If the trouble will continue even after the above measures, write down the error No. and consult us. ML-5020BW...
  • Page 68 The output voltage of the LD power supply 2 is 7 V or more. Turn off the CONTROL keyswitch and turn it on LDPS2 OUTPUT OPEN again to reset. If the trouble will continue even after the above measures, write down the error No. and consult us. ML-5020BW...
  • Page 69: Troubles Not Displaying Fault Code

    If the laser does not improve though the set- ting is adjusted, optical axis of resonator may Laser output decreases though monitor displays normal value. have been dislocated. For adjusting the axis, (When processing is not performed or weld strength is not consult us. enough.) ML-5020BW...
  • Page 73: Specifications

    4.9 m/s (0.5 G) max. Impact during transport 49 m/s (5 G) max. Vibration during operations 10 to 60 Hz: 0.98 m/s (0.1 G) max. Intermittent vibration during opera- Less than 2 Hz: 4.9 m/s (0.5 G) max. tions ML-5020BW...
  • Page 74 Dimensions Without rubber foot and rack mounting plate: 199 (H) × 420 (W) × 563 (D) mm Others A; Weighted equiva- lent continuous sound 75 dB (A) max. pressure level Noise level C; Sound pressure 0.3 Pa max. level ML-5020BW...
  • Page 75: Dimensional Outline Drawings

    CURR2 CURR1 LASER START/STOP MENU READY LASER ERROR EMISSION Rubber foot (detachable) Right side view 100(wiring area) 101.5 φ4.8 (outer dia. of protective tube) Fiber length: 5000mm Min. bending radius: R35 Fiber protective plate Slide rail mounting tap (2×3-M3) ML-5020BW...
  • Page 76: Timing Chart

    Laser start (2nd time or later) *1: At start-up of laser or when the setting related to temperature is changed: approx. 300 ms *2: 150 ms or more of the irradiation time. The next laser start is disabled dur- ing this period. ML-5020BW...
  • Page 77: Error Occurrence

    Timing Chart Error Occurrence Error occurrence External reser input Laser output preparation command input Laser output enabled Ready signal output Laser output disabled Error output ML-5020BW...
  • Page 78: Explanation Of Terminology

    Live. → P.29 LASER is an abbreviation of Light Amplification by Stimulated Emission of Radiation, which is Laser light artificially generated by laser oscillator. Laser is classified into solid laser, liquid laser, and gas laser by medium. ML-5020BW...
  • Page 79 Electric resistance generally used as a scale to indicate the hardness of current flow for a mate- Resistivity rial. Its unit is ohm (Ω). The value that indicates this resistance by unit volume (1 cm x 1 cm x 1 cm) is volume resistivity and its unit is ohm centimeter (Ωcm). ML-5020BW...
  • Page 80 This single phase is used as a 100 V power supply for electric lamps and plug sockets. Surge Abnormal overvoltage or overcurrent applied momentarily to the electric circuit. → P.29 Work distance Distance from the laser light output position to the target workpiece for laser processing. ML-5020BW...
  • Page 81: Output Schedule Data Entry Table

    Output Schedule Data Entry Table Output Schedule Data Entry Table ML-5020BW...
  • Page 82: Index

    TEMP 38 Temperature control method 40 TH Connector 21 GID 43 THMON Connector 21 GOOD 42 TIME 43 grounding work 25 TOTAL 42 KEEP 40 W2KP 41 LASER Lamp 19 Laser Light down-sloping 38 up-sloping 38 Laser Safety Supervisor 8 ML-5020BW...

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