Lincoln Electric INVERTEC 170TX Service Manual
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Lincoln Electric INVERTEC 170TX Service Manual

Lincoln Electric INVERTEC 170TX Service Manual

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SVM 2050
Rev.04 10-2017
®
INVERTEC
170TX/TPX & 220TPX
For use with machines having code numbers: 52111, 52112, 52104
LINCOLN ELECTRIC EUROPE
www.lincolnelectric.eu

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  • Page 1 SVM 2050 Rev.04 10-2017 ® INVERTEC 170TX/TPX & 220TPX For use with machines having code numbers: 52111, 52112, 52104 LINCOLN ELECTRIC EUROPE www.lincolnelectric.eu...

  • Page 2: Table Of Contents

    INDEX OF CONTENTS INDEX OF CONTENTS ............................. 2 TECHNICAL SPECIFICATIONS AND ACCESSORIES ................... 3 ACCESSORIES ................................. 4 SAFETY ..................................5 INSTALLATION AND OPERATOR INSTRUCTIONS ....................6 MAINTENANCE ..............................21 MAJOR COMPONENTS LOCATION ........................23 THEORY OF OPERATION ............................. 24 TROUBLESHOOTING AND REPAIR SECTION ....................33 HOW TO USE TROUBLESHOOTING GUIDE .......................

  • Page 3: Technical Specifications And Accessories

    TECHNICAL SPECIFICATIONS AND ACCESSORIES ® Invertec 170TX/TPX INPUT Input Voltage U EMC Class Frequency 230Vac ± 15% 50/60 Hz cosφ Input Line Input Power at Rated Cycle Input Amperes I 1max 100% 3.2KW (Stick) 35% Stick 35% Stick 100% (TIG) 2.5KW 230Vac 35% (Stick)

  • Page 4: Accessories

    ® Invertec 220TPX INPUT Input Voltage U EMC Class Frequency 115 - 230Vac ± 15% 50/60 Hz cosφ Input Line Input Power at Rated Cycle Input Amperes I 1max 100% 2.6 kW (Stick) 100% (TIG) 2.3 kW 115Vac 28.3 A 0.997 35% (Stick) 3.3 kW...

  • Page 5: Safety

    Read and understand the following explanations of the warning symbols. Lincoln Electric is not responsible for damages caused by improper installation, improper care or abnormal operation.

  • Page 6: Installation And Operator Instructions

    Installation and Operator Instructions General Description Input Supply Connection Invertec 170TX/TPX and 220TPX are constant current, continous control arc welding power sources for stick The machines are a wide input voltage range: before and tig process. They provide superior and reliable installing and turning it on, check the supplied input starting characteristics and arc stability.

  • Page 7: Controls And Operational Features

    used. An input gas line and the required fittings are also Stick Welding (MMA) included in the package. Connect the TIG torch trigger to the trigger connector (A) on the front of the machine. This machine does not include a MMA welding kit cables, but may be purchased separately.

  • Page 8: Front Panel Indicators And Controls

    “A” LED (placed on the middle of the synoptic) This indicator will turn on when a Remote command is with one of the LED of the Welding “MODE” connected to the machine via the remote control command. This is the minimum condition: connector.
  • Page 9 This machine is provided by VRD (Voltage Reduction SEL Pushbutton: Device) function: this reduces the voltage at the output leads. The VRD function is enabled by factory default only on machines that meet the AS 1674.2 Australian The SELect pusbutton is used to scroll the TIG welding Standards.
  • Page 10 See “Operating Instruction” section for a detailed Output Current Knob: description of the functions described by these indications. Operating Instruction Stick (SMAW) Welding To select Stick welding: It is used to set the Output Current used during welding. Action Visualization This knob is also a multi-purpose command: see the “Operating Instruction”...
  • Page 11 To switch between Soft and Crisp: Spot TIG (GTAW welding) The Spot TIG feature is selectable only if the “option 10” is previously enabled in the Setup Menu. Action Visualization At idle, before welding Current/Voltage To select Spot TIG welding: Press SEL Action Visualization...
  • Page 12 CRATER This function controls the final current value after Tig Welding Sequences (only model the Downslope. For an explanation of the Crater 220TPX-170TPX) operation, refer to the trigger sequences explained At each pressure of the SEL below. pusbutton the LEDs lights up in the POSTFLOW following order: In the TIG welding modes, this function controls...
  • Page 13 DOWNSLOPE output of the machine is turned ON. At this time In the TIG welding modes, this function controls the arc is started according to the selected welding the linear decrease of the current from Set to Crater mode. After the arc is started the output current Current.
  • Page 14 4-Step Trigger Sequence To select 4-Step sequence: Action Visualization Press several times until the LED above lights up With the 4-step trigger mode and a TIG welding mode selected, the following welding sequence will occur. Press and hold the TIG torch trigger to start the sequence as described above.
  • Page 15 As shown here, after the TIG torch trigger is As shown here, after quickly pressed and the TIG torch trigger is released from step 3A, quickly pressed and it is possible to press released from step 3A, and hold the TIG torch it is possible to press trigger another time to and hold the TIG torch...

  • Page 16: Setup Menu

    ON again. If the error remains, a maintenance is required. Please contact the nearest technical service center or Lincoln Electric and report now is shown the option number “00” the error code displayed on the meter of the Front Panel.

  • Page 17: Maintenance

    Maintenance WARNING For any maintenance or repair operations it is recommended to contact the nearest technical service center or Lincoln Electric. Maintenance or repairs performed by unauthorized service centers or personnel will null and void the manufacturers warranty. The frequency of the maintenance operations may vary in accordance with the working environment.
  • Page 18 List of parameters and Factory stored programs List of parameters and Factory Configuration program: Displayed value Selectable Value Range Parameter Factory Configuration Preflow 0.3s 0 - 5s (step 0.1s) Current selected value (s) Lift TIG 2-step: 22A Not adjustable Lift TIG 4-step: 30% Start Current Current selected value (A) HF TIG 2-step: 30%...

  • Page 19: Electromagnetic Compatibility (Emc) For 170Tx/Tpx

    Lincoln Electric. The Class A equipment is not intended for use in residential locations where the electrical power is provided by the public low-voltage supply system.

  • Page 20: Electromagnetic Compatibility (Emc) For 220Tpx

    Lincoln Electric. The Class A equipment is not intended for use in residential locations where the electrical power is provided by the public low-voltage supply system.

  • Page 21: Maintenance

    MAINTENANCE WARNING INPUT DC BUS CAPACITORS DISCHARGE PROCEDURE ® Remove input power to Invertec 170TX or 170TPX or 220TPX machine ELECTRIC SHOCK can kill Remove the cover following the instruction available in this Service manual. Have an electrician install and service this equipment Obtain a high resistance and high wattage resistor ( 25- Turn the input power off at the fuse box before working on 1000 ohms and 25 watts minimum ).

  • Page 22: Routine Maintenance

    DC - DC + Figure 2 – 220TPX Boost Board ROUTINE MAINTENANCE THERMAL PROTECTION Keep the welding area around the machine clean and Thermal detection device protect the machine from free of combustible materials. No debris should be excessive operating temperatures. Excessive temperatures allowed to collect which could obstruct air flow to the may be caused by a lack of cooling air or operating the machine...

  • Page 23: Major Components Location

    MAJOR COMPONENTS LOCATION ® INVERTEC 170TX/TPX 1. Input Board 6. HF board 2. Inverter Board 7. HF transformer 3. Fan 8. Dinse connector 4. Mains switch 9. Solenoid valve 5. Control board 10. Sensor hall ® INVERTEC 220TPX 1. Boost Board 6.

  • Page 24: Theory Of Operation

    THEORY OF OPERATION ® INVERTEC 170TX-170TPX - SCHEMATIC DIAGRAM Page24...
  • Page 25 ® INVERTEC 220TPX - SCHEMATIC DIAGRAM Page25...

  • Page 26: General Description

    INPUT SECTION (170TX-TPX) the input switch, the following activities will be GENERAL DESCRIPTION managed by the input board W05X1545: ® The Invertec 170TX, 170TPX are inverter based  the auxiliary power supplies (+24V, +15V, +5V, welding power sources that offer multi-mode (TIG and -5V) are generated.
  • Page 27 INPUT SECTION (220TPX) GENERAL DESCRIPTION via the ON/OFF switch, the following activities will be ® The Invertec 220TPX has the same functionalities of managed boost board W05X1347 the 170TX and TPX but the machine can be operated W05X1656: from 115Vac to 230Vac single phase input voltage thanks to the boost circuit.

  • Page 28: Inverter Board

    INVERTER BOARD INVERTER, MAIN TRANSFORMER and OUTPUT RECTIFIER CIRCUIT The 325VDC or 380VDC created by the Input Board or The main transformer, part of the inverter board, Boost Board is filtered and applied to an IGBT insulate the primary circuit from the secondary controlled full wave bridge inverter that is located on (welding) circuit;...
  • Page 29 HF BOARD HF BOARD, HF TRANSFORMER The HF Board generates a set of 40-60Hz pulses of about 800V-900V. These pulses are applied to the high frequency transformer that is located in the negative welding output leg of the machine and are amplified to about 10KV. This high frequency/voltage pulse is transferred to the TIG torch via the high frequency transformer.

  • Page 30: Control Board

    CONTROL BOARD Control Board (User Interface) The control board receives status and analog feedback signals from the inverter board, input board or boost board and various sensors. It receives also commands from the user-operated controls that are on the control board. The push buttons and encoder allow the operator to set the output of the machine.

  • Page 31: Overload Protection

    Excessive temperature may be caused by a lack of OVERLOAD PROTECTION cooling air or by operating the machine beyond the duty cycle and output rating. If excessive operating ® Invertec 170TX, TPX, 220TPX are electrically temperature should occur, the Thermal LED indicator protected from producing higher than normal output on the control board, will turn ON and the thermostat currents.

  • Page 32: Insulated Gate Bipolar Transistor (Igbt) Operation

    INSULATED GATE BIPOLAR TRANSISTOR (IGBT) OPERATION Drawing B shows the IGBT in an active mode. An IGBT is a type of transistor. IGBTs are When the gate signal, a positive DC voltage semicon-ductors well suited for high frequency relative to the source, is applied to the gate switching and high current applications.

  • Page 33: Troubleshooting And Repair Section

    TROUBLESHOOTING AND REPAIR SECTION  How to use troubleshooting Guide  Troubleshooting Guide  Case cover removal and capacitor discharge procedure  Input Board Test 170TX/TPX  Input Boost Board Test 220 TPX  Inverter board resistance test  Inverter board voltage test ...

  • Page 34: How To Use Troubleshooting Guide

    HOW TO USE TROUBLESHOOTING GUIDE Service and repair should be performed by only Lincoln Electric Factory Trained Personnel. Unauthorized repairs performed on this equipment may result in danger to the technician and machine operator and will invalidate your factory warranty. For your safety and to avoid Electrical Shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 35 WARNING NOTE: Allow the machine to heat up so that all electrical components can reach their operating temperature. 5. Remove the replacement PC board and ELECTRIC SHOCK can kill substitute it with the original PC board to recreate the original problem. ...

  • Page 36: Troubleshooting

    TEST* * This tests and repair should only be performed by Lincoln Electric Factory Trained Personnel. Unauthorized repairs performed on this equipment may result in danger to the technician and machine operator and will invalidate your factory warranty. For your safety and to avoid Electrical Shock, please observe all safety notes and precautions detailed...

  • Page 37: Case Cover Removal And Dc Link Capacitor Discharge Procedure

    DISCHARGE PROCEDURE WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel.Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 38 ® INVERTEC 170TX-TPX & 220TPX - CASE COVER REMOVAL Procedure: 1. Turn on/off switch to off position. 2. Disconnect Input Power from the machine ! 3. Remove the 12 screws of the rear and front plastic handle (4xA & 8xC) 4.

  • Page 39: Dc Bus Capacitors Discharge Procedure

    DC BUS CAPACITORS DISCHARGE PROCEDURE WARNING INPUT DC BUS CAPACITORS DISCHARGE PROCEDURE ELECTRIC SHOCK can kill ® 1. Remove input power to Invertec 170TX or 170TPX or 220TPX machine Have an electrician install and service this equipment 2. Remove the cover following the instruction Turn the input power off at the fuse box before working available in this Service manual.
  • Page 40 DC - DC + Figure 2 – 220TPX Input/Boost Board Page 40...

  • Page 41: Input Board Test - 170Tx/Tpx

    INPUT BOARD TEST – 170TX/TPX WARNING Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 42 INPUT BOARD TEST 170TP/TPX (continued) LED1 LED6 Diode LED3 bridge B1 PTC1 LED4 LED5 Diode bridge DC + DC - Figure 1 – W05X1545 – Input Board 170TP/TPX Page 42...

  • Page 43: Test Procedure

    TEST PROCEDURE Use always electrically insulate gloves during this test procedure ® 1. Remove main input power to the INVERTEC 170TP or 170TPX. 2. Perform the Discharge procedure 3. Locate the input board W05X1545 on the right side of the machine. 4.

  • Page 44: Input Boost Board Test - 220Tpx

    INPUT BOOST BOARD TEST – 220TPX WARNING Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty.
  • Page 45 INPUT BOOST BOARD TEST 220TPX (continued) LED D11 +15V/1 LED D46 LED D50 LED D1 LED D48 -5V/1 +15Vdrv LED D16 LED D14 +15V +24V DC - DC + LED Live LED SSWon LED TH-IP LED BSTon LED TH-IGBT Figure 2 – W05X1347 or W05X1656 – Input Boost Board 220TPX TEST PROCEDURE Use always electrically insulate gloves during this test procedure ®...
  • Page 46 INPUT BOOST BOARD TEST 220TPX (continued) Table 7 - Input Boost Board LEDS Description Indicates Normal Light Status Color LED D36 Thermal located on Input diode Bridge “TH-IP” LED D39 Thermal located on Input diode Bridge “TH-IGBT” LED D33 Boost is operating “BSTon”...

  • Page 47: Inverter Board Resistance Test

    INVERTER BOARD RESISTANCE TEST WARNING Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 48 INVERTER BOARD RESISTANCE TEST (continued) DC - DC + Output Diodes D21-D22-D43 IGBT IGBT Z3-Z4 Z1-Z2 IGBT IGBT Z7-Z8 Z5-Z6 Output Diodes D18-D19-D20 Figure 3 – W05X1348-2 Inverter Board 170TP/TPX W05X1348 Inverter Board 220TPX Output IGBT Diode pinout IGBT and pinout Output diode heatsink...
  • Page 49 INVERTER BOARD RESISTANCE TEST (continued) TEST PROCEDURE Use always electrically insulate gloves during this test procedure ® 1. Remove main input power to the INVERTEC 170TP/TPX or 220TPX. 2. Perform the Discharge procedure 3. Locate the Inverter Board W05X1348 on the left side of the machine. 4.

  • Page 50: Inverter Board Voltage Test

    INVERTER BOARD VOLTAGE TEST WARNING Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 51 INVERTER BOARD VOLTAGE TEST (continued) LED D44 DC - DC + OUT - terminal OUT + terminal LED D48 LED D36 LED D37 LED D10 LED D8 LED D14 LED D45 Figure 4 – W05X1348-2 Inverter Board 170TP/TPX W05X1348 Inverter Board 220TPX Page 51...
  • Page 52 INVERTER BOARD VOLTAGE TEST (continued) TEST PROCEDURE Use always electrically insulate gloves during this test procedure ® 1. Carefully apply 230Vac +/- 15% input voltage via the input cable to the INVERTEC 170TP/TPX or 220TPX 2. Switch to ON position the mains switch located on the back of the machine and wait till the power LED on front panel is stady green.
  • Page 53 If +5Vdc is present = I out max = 170A Max Iout setting for Invertec 170A and 220A SGND SGND Secondary GND power supply Test Table 17 - J3: Current sensor (only Invertec 170TX/TPX) Pin# Description Use pin 4 as GND ref. Notes...

  • Page 54: Hf Board Test - W05X1331

    HF BOARD TEST - W05X1331 WARNING Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 55 HF BOARD TEST - W05X1331 (continued) Figure 5 – W05X1331 HF Board 170TP/TPX – 220TPX HV & HV-RTN to Input Bd (to the HF transformer) TEST PROCEDURE Use always electrically insulate gloves during this test procedure ® 1. Carefully apply 230Vac +/- 15% input voltage via the input cable to the INVERTEC 170TP/TPX or 220TPX 2.

  • Page 56: Hf Board Test - W05X1615

    HF BOARD TEST - W05X1615 WARNING Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 57 HF BOARD TEST - W05X1615 (continued) HV-RTN to Input (to the HF transformer) (to the HF transformer) Diode D9 control Board Figure 19 – W05X1615 HF board test points TEST PROCEDURE Use always electrically insulate gloves during this test procedure ®...

  • Page 58: Control Board Test

    CONTROL BOARD TEST WARNING Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 59 CONTROL BOARD TEST (continued) Figure 6 – W05X1419 Control Board 170TPX – 220TPX W05X1419-2 Control Board 170TX TEST PROCEDURE ® 1. Carefully apply 230Vac +/- 15% input voltage via the input cable to the INVERTEC 170TP/TPX or 220TPX 2. Turn the machine input swith to ON position, and wait till the power LED on front panel is stady green. 3.
  • Page 60 CONTROL BOARD TEST (continued) Test Table 19 - J23: Control/Remote connector Pin# Description Value (use GNDA as 0V ref.) Notes  +15Vdc = trigger is released TRIGGER Remote trigger signal  0Vdc = trigger pushed TRIGGER Remote trigger return signal POTW From 0 VDC to 7,5Vdc Remote Potentiometer Wiper...

  • Page 61: Removal Procedure

    DISASSEMBLY OPERATIONS INPUT BOARD 170TX/ REMOVAL AND REPLACEMENT PROCEDURE WARNING Disconnect input power before servicing. Do not operate with covers removed. Do not touch electrically live parts. Only qualified persons should install, use ELECTRIC SHOCK or service this equipment. CAN KILL J1,J5,J6,J7 connectors (DC+)
  • Page 62 Page 62...
  • Page 63 DISASSEMBLY OPERATIONS INPUT BOOST BOARD 220TPX REMOVAL AND REPLACEMENT PROCEDURE WARNING Disconnect input power before servicing. J1,J5,J6,J7 Do not operate with covers removed. Do not touch electrically live parts. connectors Only qualified persons should install, use ELECTRIC SHOCK or service this equipment. CAN KILL (DC-) (DC+)
  • Page 64 Only qualified persons should install, use ELECTRIC SHOCK or service this equipment. CAN KILL (DC-) (DC+) Figure 9 - Invertec 170TX/TPX - 220TPX Inverter board REMOVAL PROCEDURE Necessary tools: - Phillips screwdriver PH02 - A small flat bladed screwdriver ®...
  • Page 65 Only qualified persons should install, use ELECTRIC SHOCK or service this equipment. CAN KILL HV & HVRTN Figure 10 - Invertec 170TX/TPX - 220TPX HF board REMOVAL PROCEDURE Necessary tools: - 2 mm Allen wrench ® 1. Remove main input power to the INVERTEC 170TX/TPX - 220TPX 2.
  • Page 66 CAN KILL Use the 2mm Allen wrench to loosen the know screw Figure 11 - Invertec 170TX/TPX - 220TPX Control board REMOVAL PROCEDURE Necessary tool: 5,5 mm short nutdriver or wrench 2 mm Allen wrench ®...

  • Page 67: Retest After Repair

    RETEST AFTER REPAIR Should a machine under test be rejected for any reason requiring the removal of any mechanical part that could affect the machine’s electrical characteristics, or if any electrical components are repaired or replaced, the machine must be retested.

  • Page 68: Electrical Diagrams

    ELECTRICAL DIAGRAMS ® INVERTEC 170TX/TPX Page 68...
  • Page 69 ELECTRICAL DIAGRAMS ® INVERTEC 220TPX Page 69...

  • Page 70: Note

    NOTE Page 70...

This manual is also suitable for:

Invertec 170 tpxInvertec 220 tpx

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