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Table of Contents
Related Manuals for Kemppi MinarcTig 180MLP
Summary of Contents for Kemppi MinarcTig 180MLP
- Page 1 Service manual MinarcTig 180MLP Version 1.0 MinarcTig 180MLP...
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Page 2: Table Of Contents
Table of contents Technical data..................3 Main circuit diagram................4 Block diagram..................5 Main circuit card Z001 Operating diagram............... 6 Connectors................7 Measurings................8 Control card A001 Operating diagram............... 9 Connectors................10 Spark generator card A002 Connectors / operating diagram..........11 Panel card P001 Connectors / operating diagram..........12 Operating panel................... -
Page 3: Technical Data
Technical data 1 ~230 V ±15%, 50 / 60 Hz Mains voltage Rated power Max. 6,7 kVA (180 A / 17,2 V) Max. 7,0 kVA (140 A / 25,6 V) Load capacity 35 % ED 180 A / 17,2 V 100 % ED 120 A / 14,8 V 35 % ED... -
Page 4: Main Circuit Diagram
Main circuit diagram PTC, 140 °C Main transformer, T001 Choke, L002 Main switch, S1 PTC, 120 °C Main circuit card Aux. transformer, T002 Shunt resistor, R001 Spark transformer, T003 Spark generator card, A002 Control card Panel card, P001 Solenoid valve, Y001 Fan, M001... -
Page 5: Block Diagram
Block diagram Main circuit card Z001 Control card A001 Net over voltage protection Aux. Voltage development DC-link charging Undervoltage monitoring EMI-filter Over voltage monitoring Primary rectifier Temperature monitoring Energy reserve Solenoid valve control ”Dual-forward”-inverter Fan control Main transformer Power supply control Secondary rectifying Panel card P001 Spark generator card A002... -
Page 6: Main Circuit Card Z001
Main circuit card Z001 Secondary rectifier DC-link charging, resistors and relay Connector to A001 Main transformer, T001 EMI-filter Current transformer, IGBTs, gate Primary rectifier resistors, return current diodes Smoothing capasitors Operating diagram - Net over voltage protection - DC-link charging - EMI-filter Z001 - Primary rectifier... -
Page 7: Connectors
Connectors Measuring point A. X1, X3 Z001 connectors Power supply voltage 230 Vac Measuring point B. X2/6, X2/12 Connector A001 Measuring point C Primary rectifier Power supply voltage 230 Vac Shunt resistor, (-) Machine body, equipment earth Aux. transformer T002 supply voltage ~230 Vac Aux. -
Page 8: Measurings
Measurings Measuring point B. Measuring point A. Gate control pulse (X2/6, X2/12), no load Supply voltage, main circuit card Z001 Measuring point C. DC-link charging (primary rectifier) -
Page 9: Control Card A001
Control card A001 Operating diagram - Aux. Voltage development - PWM-control - Shunt amplifier - MMA dynamic control - Solenoid valve control - Fan control - Under voltage watch - Overvoltage watch - Overheat watch - Remote/foot control interface - TIG –torch interface - Panel interface - Filtering of control lines... -
Page 10: Connectors
Connectors A001 / X5 A001 / X1 X5/1 X1/1 I2 measure X5/2 X1/2 U2 measure X5/3 24 V X1/3 D1 data X5/4 Pedal start X1/4 D1 data X5/5 Remote pot X1/5 D1 data X5/6 X1/6 Torch potentiometer X1/7 Remote potentiometer X5/7 + 5 V X1/8... -
Page 11: Spark Generator Card A002
Spark generator card A002 Connectors A002 connectors Main transformer secondary Spark on / off Spark transformer primary Spark voltage adjustment Operating diagram - Spark voltage generator (=voltage multiplier) - Spark voltage adjustment... -
Page 12: Panel Card P001
Panel card P001 Connectors P001 Connectors Connector A001 Membrane panel connection X10 Program-/service channel Operating diagram - Micro controller (Renesas M30262) - Adjustment potentiometer - Parameters selection - Overheat protection signal light - Main switch signal light... -
Page 13: Operating Panel
Operating panel Standby Overheating indicator indicator Pulse cycle Minilog Downslope Upslope Postgas Pregas Pulse on/off Selection arrow keys Control knobb Process Panel / remote selection TIG / selector HF ignition ( LED on ) 2T / 4T function and Contact ignition ( LED off ) minilog... -
Page 14: Setup
Setup • You can enter the Setup mode by pressing both arrow keys ( 1 ) for at least five seconds. • The display will show the name of the parameter ( 2 ) and numerical value ( 3 ). •... -
Page 15: Setup Functions
Setup functions Name on Parameter Factory Description display value range setting 0 or 1 End current level selection. 1=5A, 0=15% 0 or 1 Open-circuit voltage selection. 1=30V (VRD), 0=95V 0 or 1 Forced stop during downslope with a brief pressing of the switch. 1=On, 0=Off 0,1,2 or 3 Alternative switch logic. - Page 16 Setup functions A = End current level selection With this function you can set the welding current level when the arc will be extinguished. 0 = 15% of the welding current that is used. 1 = minimum current, which is 5 amperes in this power source. B = Open-circuit selection With this function you can change the open-circuit voltage.
- Page 17 Setup functions h = Minimum setting for pre-gas time With this function you can set the pre-gas minimum time to the desired value in the range 0 – 2 seconds.The factory setting is 0 seconds. J = Minumum setting for post-gas time With this function you can set the post-gas minimum time to the desired value in the range 0 –...
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Page 18: Error Codes
Error codes E2: Power source undervoltage The machine has stopped because it has detected a mains undervoltage that disturbs welding. Check the quality of the supply network. E3: Power source overvoltage The machine has stopped the welding because it has detected momentary voltage spikes or continuous overvoltage dangerous to the machine in the electric network. -
Page 19: Structure
Structure Membrane panel Panel card, P001 Control card, A001 Main switch, S001 Solenoid valve, Y001 Fan, M002 Spark generator card, Aux. transformer, T002 A002 Main circuit card, Z001 Choke, L002 Spark transformer, T003 Shunt resistor, Main R001 transformer, T001... -
Page 20: Power Semiconductors Testing And Replacing
Power semiconductor testing and replacing A separate discrete-IGBTs can be tested only when disconnected from the board with IGBT-tester. When replacing damaged IGBTs, the whole set has to be replaced, including gate resistors!! Discrete-IGBT and secondary diodes tightening torque to the heat sink is 0,6…1,2 Nm. -
Page 21: Programming
Programming 1. Start DataMaster II and press Menu. 2. Select Renesas Programming using UART mode. 3. Use the up and down arrows to choose the program you want to download. 4. Press START on the DataMaster II keypad to start the updating process. 5. -
Page 22: Troubleshooting
Troubleshooting Problem Possible cause Remedy The power doesn’t start Aux transformer T002 Chech aux. Transformer T002 Panels signal light (green) is not ignited Secondary voltage between connectors X8/1-X8/2. (approx. 23 Vac) Control card A001 If aux. Transformer secondary voltage Is approx. 23 Vac, then replace control card A001 Th net fuses blow when starting Faulty primary circuit semiconductor...