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USER'S MANUAL 990-929
Rev. 5
March 2014
OPERATOR MANUAL
FOR THE
LF SERIES LASER

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Summary of Contents for Miyachi LF Series

  • Page 1 USER’S MANUAL 990-929 Rev. 5 March 2014 OPERATOR MANUAL FOR THE LF SERIES LASER...
  • Page 2: Revision Record

    Copyright © 2014, Miyachi America Corporation The engineering designs, drawings and data contained herein are the proprietary work of MIYACHI AMERICA CORPORATION and may not be reproduced, copied, exhibited or otherwise used without the written authorization of MIYACHI AMERICA CORPORATION.
  • Page 3: Table Of Contents

    General Operator Safety ........................3-1 Starting the Laser ..........................3-1 Section II. Operation Control Panel ....................... 3-2 Prepare Processing Point and Set the Weld Schedule ..............3-2 Schedule Screen ..........................3-2 Status Screen ............................ 3-5 Trouble Screen ..........................3-6 LF SERIES FIBER LASER 990-929...
  • Page 4 Section V: Parts List ..........................4-11 Consumable Parts .......................... 4-11 Section VI: Repair Service ........................4-12 Appendix A. Technical Specifications ....................A-1 Appendix B. Electrical And Data Connections .................B-1 Appendix C. External RS-232 Communication ................C-1 LF SERIES FIBER LASER 990-929...
  • Page 5: Contact Us

    CONTACT US Thank you for purchasing a Miyachi Unitek LF Series Fiber Laser. Upon receipt of the laser, please thoroughly inspect it for shipping damage before you install it. If there is any damage, contact the shipping company immediately to file a claim,...
  • Page 6: Safety Precautions

    Procedures described in this manual must be performed as detailed by qualified and trained personnel. NOTE: For the rest of this manual, all models of LF Series Fiber Laser will simply be referred to as “the Laser,” except in specific instances where unique descriptions are required such as specifications, connections, etc.
  • Page 7 Never expose eyes or skin to laser irradiation. Exposure to direct or scattered laser light is extremely hazardous. Direct exposure of the eye to laser beams may result in blindness. LF SERIES FIBER LASER 990-929...
  • Page 8 If you detect a burning smell, abnormal sounds, abnormal heat, smoke, etc. from the Laser, turn the power OFF immediately to prevent fire or electric shock. Contact Miyachi America or your distributor for help. Ground the Laser.
  • Page 9 Make sure there is a fire extinguisher in or near the Laser shop in case of fire. Regularly inspect and maintain the Laser. Regular inspection and maintenance is essential for safe operation and long life of the Laser. If you see any damage, make necessary repairs before operating the Laser. LF SERIES FIBER LASER 990-929...
  • Page 10 Applying excessive force or using the tip of a screwdriver, pen, or other instrument may damage the Laser. Operate only one switch or button at a time. Attempting to operate several at a time may damage the Laser. LF SERIES FIBER LASER 990-929...
  • Page 11 IEC60825-1 Edition1.2 “Safety of laser products Part1: Equipment Classifications, requirements and user's guide.” ● Miyachi America Laser Safety Manual (Part Number 990-502) Warning Labels The Laser Welder carries the following labels. Read and follow the label instructions to ensure correct use.
  • Page 12 LF SERIES FIBER LASER 990-929...
  • Page 15: Chapter 1. System Description

    SYSTEM DESCRIPTION Section I: Features For the rest of this manual the LF Series Fiber Laser will simply be referred to as “the Laser,” except in specific instances where unique descriptions are required such as specifications, connections, etc. Drawing on Miyachi America's extensive experience in laser micro welding, this laser provides a platform for small welding applications.
  • Page 16  Excellent power stability. Fine micro welding applications require high stability of the laser source for reliable welding. The LF series fiber lasers offer excellent power and pulse-to-pulse stability with an internal air-to-water cooling mechanism which maintains stability irrespective of the ambient air temperature.
  • Page 17: Section Ii: System Components

    A closed loop cooling system to maintain consistent laser output. The front of CHILLER UNIT this chiller unit has a temperature controller and chiller status indicator lights. The process supply connections and power input are located on the back of this unit. LF SERIES FIBER LASER 990-929...
  • Page 18: Fiber Laser Controller

    HMI PANEL DISPLAY This switch stops the laser immediately. Use this function only in EMERGENCY STOP SWITCH an emergency. This switch turns system power on/off. NOTE: Main breaker must be POWER SYSTEM SWITCH ON position. LF SERIES FIBER LASER 990-929...
  • Page 19: Fiber Laser Supply System

    This indicator is amber when the targeting laser is ON, and not indicating when the targeting laser is OFF. “LFxxxA” The “xxx” value is the maximum output of the Fiber Laser, MODEL NUMBER LABEL in watts. LF SERIES FIBER LASER 990-929...
  • Page 20: Chiller (Thermoelectric Type)

    The set value will scroll in tenths of degrees and then change to full degree increments. The Menu button allows the chiller to be set to the proper temperature. Press this button MENU until the display reads ‘Set Temperature’. LF SERIES FIBER LASER 990-929...
  • Page 21: Chiller (Refrigerant Type)

    Port to add coolant to the chiller. FILLER CAP Port to drain coolant from the chiller for storage or replacement. DRAIN Contains the chiller power switch, the system run indicator, alarm indicators, CONTROL PANEL and the temperature controller. LF SERIES FIBER LASER 990-929...
  • Page 22: Chapter 2. Installation And Setup Section I: Planning

    Appendix A, Technical Specifications for details. Figure 2-1. Ventilation  The humidity should be 85% or less (non-condensing). The area should have no sudden temperature fluctuations. LF SERIES FIBER LASER 990-929...
  • Page 23: Section Ii: Installation

    Make sure the keyswitch on the laser is in the ON position whenever the system power is ON. (This is the key behind the front door) 10. Power up, program, and use the Fiber Laser as needed. LF SERIES FIBER LASER 990-929...
  • Page 24: Power Requirements

    Connection to Workstation Emergency Stop. E-STOP Connection to Workstation I/O. WORKSTATION I/O Connection to Workstation Interlock WORKSTATION INTERLOCK Connection to fiber laser engine. LASER RS232 COM Connection to fiber laser Controller. CONTROLLER RS232 COM ETHERNET LF SERIES FIBER LASER 990-929...
  • Page 25: Section Iii: Connections Reference

    Any unauthorized changes may damage the equipment and void your warranty. only NOTE: Rear panel should opened when performing the necessary procedures described in Chapter 4, Maintenance. Figure 2-3. Rear Door LF SERIES FIBER LASER 990-929...
  • Page 26: Fiber Laser Controller

    Connection to Workstation Emergency Stop E-STOP Connection to Fiber Laser I/O LASER I/O Connection to Fiber Laser MODULATION (OUT) MOD INPUT TTL SET PWR (IN) TRIGGER (OUT) POWER LEVEL (OUT) PHOTO DIODE (OUT) Powers Ethernet switch +24V INPUT LF SERIES FIBER LASER 990-929...
  • Page 27: Fiber Laser Supply System

    This rear panel connection is for integration with an external safety INTERLOCK CONNECTOR interlock circuit. This is connected to the Laser Controller connector LASER INTERLOCK LF SERIES FIBER LASER 990-929...
  • Page 28 This is connected to the Laser Controller connector. LASER KEY Main power input from the distribution block to the laser power supply. AC INPUT Fiber Laser Power Switch / Breaker CIRCUIT BREAKER LF SERIES FIBER LASER 990-929...
  • Page 29: Chiller (Thermoelectric Type)

    There must be a minimum of 6” clearance and free path for airflow at the rear of this unit. Warmer coolant supply return from laser to the chiller. COOLANT RETURN Closed loop coolant supply out of the chiller and to the laser. COOLANT OUT LF SERIES FIBER LASER 990-929...
  • Page 30: Chiller (Refrigerant Type)

    Output of chiller coolant from the closed chilled water loop. This supply to the COOLANT OUT laser provides consistent operation. AC power input to chiller from chassis power distribution blocks. AC INPUT Cycles as needed during operation to provide airflow to the chiller unit COOLING FAN LF SERIES FIBER LASER 990-929...
  • Page 31: Chapter 3. Operating Instructions Section I. Welding Preparation

    Starting the Laser 1. Turn the Laser switch ON. MAIN POWER 2. When prompted, turn the keyswitch to the ON position. Once any of the operating screens appear, the Laser is ready for welding. LF SERIES FIBER LASER 990-929...
  • Page 32: Section Ii. Operation Control Panel

    (focus head). Select the field to be modified by lightly touching this field. When the keypad appears, enter the desired value. Pressing enter will exit this field. Schedule Screen Figure 3-1. Schedule Screen LF SERIES FIBER LASER 990-929...
  • Page 33 0.00ms to 99.9ms inclusive. The power output for a cool segment is always fixed to 000%. NOTE: The flash 1 time has a minimum value of 00.1ms. It can not be set to zero). LF SERIES FIBER LASER 990-929...
  • Page 34 Laser & Chiller This indicates Laser and Chiller status. GREEN indicates the laser or chiller is running without problems. Schedule & Status This allows you to toggle between Schedule and Status Screens. LF SERIES FIBER LASER 990-929...
  • Page 35: Status Screen

     Pump ON/OFF Temperature Status This shows measurements of the temperature to Laser engine and Chiller. Alarm Status This display shows active error. Note: Use message display from the Trouble Screen to see all errors. LF SERIES FIBER LASER 990-929...
  • Page 36: Trouble Screen

    UP and DOWN buttons could be used to view. Change DISP Order Changes the list order from the one specified internally, to one that is timed based. LF SERIES FIBER LASER 990-929...
  • Page 37: Section Iii. External I/O

    Shutdown through External I/O Open all I/O connections by turning the high voltage OFF. Turn the Control key switch to the OFF position. Turn the main power switch on the back panel of the laser OFF. LF SERIES FIBER LASER 990-929...
  • Page 39: Chapter 4. Maintenance Section I: Precautions

    Keep the exterior of the Laser clean. Use a dry or slightly dampened cloth to clean. If heavily soiled, use a cloth moistened with a mild detergent or alcohol. Do not use paint thinner, benzene or acetone. LF SERIES FIBER LASER 990-929...
  • Page 40: Section Ii. Trouble Read Messages

    Press trouble reset button on OUTPUT POWER Laser output power is too Internal laser fault; no panel. If alarm does not clear, corrective action possible requires service visit; please ALARM! contact factory. LF SERIES FIBER LASER 990-929...
  • Page 41 Reconnect external I/O CONNECTOR NOT panel after error condition INSTALLED ON detached connector has been corrected. COOLING UNIT Internal cooling system No corrective action by Requires service visit. Please COOLING UNIT FAILURE failure operator contact factory. LF SERIES FIBER LASER 990-929...
  • Page 42: Section Iii: Routine Maintenance Schedule

    Make sure that the interior of the enclosure is clean and dry.  Place panel back flush to the rear of the Laser. Make sure studs clear thru open slot then push down to end of travel. Figure 4-1. Open Rear Door LF SERIES FIBER LASER 990-929...
  • Page 43: Section Iv: Maintenance Procedures

    80% distilled water and 20% corrosion inhibited Glycol: Use for set temperature below 5 deg. C only. Materials must be approved for exposure to aluminum. Replace every 90 days. only NOTE: These are the approved coolants to be used and covered under warranty. LF SERIES FIBER LASER 990-929...
  • Page 44: Filling The Coolant, Priming, And Draining Instructions

    12. Remove the tube from the rear of the chiller system. Secure the rear panel of the laser FILL enclosure. The system is now ready for normal operation. LF SERIES FIBER LASER 990-929...
  • Page 45: Cleaning The Air Filter

    1. If the chiller front panel display indicates , simultaneously press the Up and CONFIG. ERROR Down arrows. This will restore the chiller to factory configuration. 2. Reset the desired temperature setpoint. 3. Contact the factory if this error continues to appear. LF SERIES FIBER LASER 990-929...
  • Page 46: Refrigerant Type

    1. The recommended coolant is distilled water instead of tap water. Corrosion inhibitors are recommended where conductivities are above 240 microsiemens/cm. 2. The only approved fluids are water, distilled water, Ethylene Glycol, or Propylene Glycol. The coolant and particle filter should be changed every 90 days. LF SERIES FIBER LASER 990-929...
  • Page 47: Draining The System Fluid

    6. Attach the short drain hose to the front of the unit. Drain as much fluid as possible. 7. Close the system and reconnect the hoses to the laser. The system is now ready for DRAIN transport in cold climates. LF SERIES FIBER LASER 990-929...
  • Page 48: Replacing The Water Filter

    5. Place a new filter in the clear bowl and screw back onto the blue filter housing. 6. Turn the power to the chiller and the laser ON. 7. Verify that the coolant level is between the marks. HIGH LF SERIES FIBER LASER 4-10 990-929...
  • Page 49: Section V: Parts List

    Consumable Parts Name Part Number Cooling water (Distilled water) 900-241 Water filter (for Thermoelectric type chiller) 318-048 Fan fuse, 0.5A 250V 330-024 Controller fuse, 5A 250V 330-213 Water Filter Cartridge (for Refigerant type Chiller) 318-021 LF SERIES FIBER LASER 990-929 4-11...
  • Page 50: Section Vi: Repair Service

    CONTACT US manual. Miyachi America Corporation 1820 South Myrtle Ave. Monrovia, California 91017-7135 Phone: (626) 303-5676 FAX: (626) 358-8048 E-mail: info@miyachiamerica.com LF SERIES FIBER LASER 4-12 990-929...
  • Page 53: Appendix A. Technical Specifications

    1070 nm Positioning Guide Beam Built-in visible laser (red) Output Power Stability ±2% Repetition Rate 1 – 50,000 Hz, CW 200-240 V +/- 10% V AC 50-60 Hz single Voltage phase Current 18 A RMS LF SERIES FIBER LASER 990-929...
  • Page 54 0.02 - 99 CW, 1 - 50,000 Hz LF500A-MM 500 Multi 15.0** 0.02 - 99 CW, 1 - 50,000 Hz LF500A-SM Single 0.02 - 99 CW, 1 - 50,000 Hz * Air **100μ core Cooled LF SERIES FIBER LASER 990-929...
  • Page 57: Appendix B. Electrical And Data Connections

    #35 -- Input COM #17 -- External Signal COM #36 -- Input COM #18 -- HV ON/OFF (In) #37 -- Input COM #19 -- TROUBLE RESET ( In) Figure B-1. EXT. I/O (1) D-SUB 37-Pin Configuration LF SERIES FIBER LASER 990-929...
  • Page 58 Each SCHEDULE number is selected by a combination of the schedule signals 1, 2, 4, 8 and 16. For the SCHEDULE number and the combinations of signals, see SCHEDULE 4 the table below. SCHEDULE 8 SCHEDULE 16 LF SERIES FIBER LASER 990-929...
  • Page 59                        Input pin COM circuit closed. Blank = Input pin COM circuit open. LF SERIES FIBER LASER 990-929...
  • Page 60 APPENDIX B: ELECTRICAL AND DATA CONNECTIONS External Input Signal Connections Figure B-3. When External Inputs are Contacts LF SERIES FIBER LASER 990-929...
  • Page 61 APPENDIX B: ELECTRICAL AND DATA CONNECTIONS Figure B-4. When External Inputs are NPN Transistors Figure B-5. When External Inputs are PNP Transistors Figure B-6. When External Power Source is Supplied LF SERIES FIBER LASER 990-929...
  • Page 62 High Voltage ON. When the high voltage is enabled, the circuit is closed and the signal stays active until the HV is turned off. Trouble. If trouble arises, the circuit is opened until it is reset. Connection of External Output Signals Figure B-7. EXT I/O(1) Connector LF SERIES FIBER LASER 990-929...
  • Page 63 Emergency Stops may damage the Laser. Figure B-8. EMERGENCY STOP Input When the Laser is in an condition, the internal circuit between Pins 1 and 6 are EMERGENCY STOP opened. Figure B-9. EMERGENCY STOP Output LF SERIES FIBER LASER 990-929...
  • Page 64 This connection is designed to interface with a door interlock, chamber interlock, or other similar interlock switch. If multiple Interlock switches are used, connect them in series. The two pins on the supplied metal plug are short- circuited for shipment. Figure B-10. EMERGENCY STOP Output LF SERIES FIBER LASER 990-929...
  • Page 65: Appendix C. External Rs-232 Communication

    Factory Settings: Baud Rate  Start bit: 1 9600bps Data bit: 8 • start bit Stop bit: 2 • (8) data bits Data Format Parity bit: Even • stop bits • Even Parity Character Code: ASCII LF SERIES FIBER LASER 990-929...
  • Page 66 If the transmitted data is valid an [ACK] will be returned. If not, a [NAK] will be returned. The Laser accepts data from the host PC only when in communication line control mode. The Laser returns a NAK in any other mode. LF SERIES FIBER LASER 990-929...
  • Page 67 –Fiber Laser: Data Fields that are not used/supported should be set to 0 (see data tables 84 and 85) 5. If the transmitted data is valid an [ACK] will be returned. If not, a [NAK] will be returned. LF SERIES FIBER LASER 990-929...
  • Page 68 Settings other than 0 or 2 Settings other than 0 or 2 Other than 0 or 2 are ignored (no change) are ignored (no change) Ignored Ignored 3: Maintenance Not available (no change) LF SERIES FIBER LASER 990-929...
  • Page 69 (0: OFF 1: ON : No change is made.) change is made 6. The Laser accepts data from the host PC only when in communication line control mode. The Laser returns a NAK in any other mode. Fiber laser: Not supported; Returns NAK LF SERIES FIBER LASER 990-929...
  • Page 70 2. SH1 and SH0 represent the schedule number (SH1 = tens, SH0 = ones) Available data range is 00 to 31. Enter the number of the Schedule you want to read. Use 2 spaces ( ) to keep the current Schedule number. LF SERIES FIBER LASER 990-929...
  • Page 71 3. There is usually a delay in returning the BCC (checksum) from the laser. When performing this command, wait for the BCC (checksum) before issuing another command. Fiber laser: Not supported; Returns Beamsplitter (Timeshare Shutter) Status Read Code: R M LF SERIES FIBER LASER 990-929...
  • Page 72 4. The Laser accepts data from the host PC only when in communication line control mode. The Laser returns a NAK in any other mode. Fiber laser: Not supported; Returns NAK Laser Stop Command Code: $ 9 Host Computer Side Laser Side LF SERIES FIBER LASER 990-929...
  • Page 73 2. After receiving the command, the laser unit resets the total counter to zero. 3. The Laser accepts data from the host PC only when in communication line control mode. The Laser returns a NAK in any other mode. Fiber laser: Not supported; Returns NAK LF SERIES FIBER LASER 990-929...
  • Page 74 If no error has occurred, the read error will be 00. 3. There is usually a delay in returning the BCC (checksum) from the laser. When performing this command, wait for the BCC (checksum) before issuing another command. LF SERIES FIBER LASER 990-929 C-10...
  • Page 75 Watt on the (Program Box) screen 0000 – 2000 (x 0.1%) Point 20 SCHEDULE on the (Program Box) screen. Reads the POWER MONITOR 0000 – 9999 (x 0.1J) approximate laser output energy of the set waveform. LF SERIES FIBER LASER 990-929 C-11...
  • Page 76 Point 10 Time on the (Program Box) SCHEDULE screen 000 – 999 (x 0.1ms) [~] on the (Program Box) POWER MONITOR screen. Reads the 0000 – 9999 (x 0.1J) approximate laser output energy of the set waveform. LF SERIES FIBER LASER 990-929 C-12...
  • Page 77 Reads the approximate laser output energy of the set waveform. TIME on the screen. 000-999 (x 0.1ms) 000-999 (x 0.1ms) COOL 1 SCHEDULE TIME on the screen. 000-999 (x 0.1ms) 000-999 (x 0.1ms) COOL 2 SCHEDULE LF SERIES FIBER LASER 990-929 C-13...
  • Page 78 Power monitor waveform display on the (Program Box) Fixed to 0 0 – 1 POWER MONITOR screen 0: OFF 1: ON REFERENCE SET on the (Program Box) POWER Fixed to 000 000 – 100 (x 1%) MONITOR screen LF SERIES FIBER LASER 990-929 C-14...

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