Kemppi Minarc 150 Service Manual
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Also See for Minarc 150:
- Operating manual (22 pages) ,
- Operation instructions manual (11 pages) ,
- Operating instructions manual (11 pages)
Table of Contents
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Table of Contents
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Summary of Contents for Kemppi Minarc 150
- Page 1 Service Manual Service Manual Ver. 1.1 Ver. 1.1 150 150 150 150 ...
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Page 2: Table Of Contents
Contents Contents Technical Technical data………………………….………… data………………………….……………... …... Operation Operation principle………………………………… principle……………………………………. …. 4 - 6 4 - 6 Main Main circuit…………………………… circuit…………………………………….……... ……….……... Troubleshooting diagram………………………...…… Troubleshooting diagram………………………...…… Main ciruit Main ciruit diagrams………………………… diagrams…………………………………. ………. Block Block diagram…………………………… diagram………………………………….…….. …….…….. Operational tests / measurings…………...……... Operational tests / measurings…………...……... -
Page 3: Technical Technical Data
Technical data Minarc 150 Minarc 150 Minarc 151 Supply voltage, 1~ 50/60 Hz 230 V ± 15% 230 V ± 15% 110 V ± 15% Loadability 35% ED (MMA) 140 A (7,5 kVA) 140 A (7,5 kVA) 140 A (7,5 kVA) -
Page 4: Principle
5 3 , 1 5 9 3 R C C C C , 2 C 2 0 V 1 , C 1 2 V T 0 1 V , 9 V , 8 V Primary circuit connection, Minarc 150/150 VRD. - Page 5 X11/14 3 6 2 1 V C X11/15 4 7 9 7 6 9 4 1 1 1 2 3 2 2 C C C R R R R 5 2 2 2 R V Secondary circuit connection, Minarc 150/151.
- Page 6 3 6 2 1 V C X11/15 4 7 9 7 6 9 4 1 1 1 2 3 2 2 C C C R R R R 5 2 2 2 R V Secondary circuit connection, Minarc 150 VRD.
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Page 7: Circuit
General This machine may be repaired only by authorized repair shops and persons! The visual check must be done first, to find possible damages; loose wires, breaks and signs of overheating. Troubleshooting diagram DISTURBANCE POSSIBLE CAUSE REMEDY Power source doesn´t start; OCV Cooling fan M001 Disconnect the fan connector X20 ~ 0 V;... -
Page 8: Diagrams
Main circuit diagrams Minarc 150/150 VRD Minarc 151... -
Page 9: Diagram
Block diagram Z001 A001 Power stage Controller (PWM) EMI-filter Gate buffer DC-link charging Set value circuit Aux. voltages Voltage watch Voltage reserve circuit MMA ignition OCV controller MMA dynamics Overvoltage protection Temperature control Supply voltage watch Auxiliary voltage watch TIG-locking TIG-scaling Z002 Relaycard... -
Page 10: Operational Tests / Measurings
Operational tests / measurings Measuring point A. Main transformer T001 primary voltage Measuring point B. Main transformer T001 secondary voltage Measuring point C. Voltage after seconday rectifier Measuring point D. Aux. coil voltage Measuring point E. Fan M001 voltage Measuring point F. Pole voltage... - Page 11 Measuring points on main circuit card Z001 (Minarc 150) Main transformer T001 primary Main transformer T001 secondary After the rectifier Main transformer auxiliary coil Fan M001...
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Page 12: Main Transformer T001 Prim. Voltage
Measuring point A. Main transformer T001 primary voltage Main transformer T001 primary voltage, min. (MMA) Main transformer T001 primary voltage, max. (MMA) -
Page 13: Main Transformer T001 Sec. Voltage
Measuring point B. Main transformer T001 secondary voltage Main transformer T001 secondary voltage, min. (MMA) Main transformer T001 secondary voltage, max. (MMA) -
Page 14: Voltage After Sec. Rectifier
Measuring point C. Voltage after secondary rectifier Voltage after secondary rectifier, min. (MMA) Voltage after secondary rectifier, max. (puikko) -
Page 15: Auxiliary Coil Voltage
Measuring point D. Auxiliary coil voltage Auxiliary coil voltage, min. (MMA) Auxiliary coil voltage, max. (MMA) -
Page 16: Fan M001 Voltage
Measuring point E. Fan voltage Idling Min. load Max. load Measuring point F. Pole voltage on idling Power adj. Potentiometer, min. Power adj. Potentiometer, max. -
Page 17: Measuring Points In The Flat Cable
Measuring point on the flat cable X1/1 X1/2 Current info from primary X1/3 X1/4 Gate control, upper IGBTs X1/5 Gate control, lower IGBTs X1/6 X1/7 Supply voltage watch X1/8 Temperature watch (PTC:t) X1/9 X1/10 Auxiliary voltage (+20…30 V) X1/11 Signal lamp H2 control / VRD X1/12 Auxiliary voltage from DC-link X1/13... -
Page 18: Gate Control, Upper Igbts
Measuring point G. Gate control, upper IGBTs Gate pulse, min. (MMA) Gate pulse, max. (MMA) -
Page 19: Gate Control, Lower Igbts
Measuring point H. Gate control, lower IGBTs Gate pulse, min. (MMA) Gate pulse, max. (MMA) -
Page 20: Aux. Voltage In Dc-Link
Measuring point I. Auxiliary voltage from DC-link Measuring point J. Signal lamp H2 control / VRD ON... -
Page 21: Main Circuit Card Z001 Connectors
Main circuit card Z001 connectors (Minarc 150) X16 X17 X1, X3 Supply voltage Protective earth X6, X8 Main transformer T001 sec. Sec. Choke L001 (+) X004 (-) X003 (+) Connection, A001 X12, X13 Main transformer T001 primary X14, X15 Main transformer T001 auxiliary... -
Page 22: Main Circuit Card Z001 Layout
Main circuit card Z001 layout (Minarc 150) Main transformer r s t o i c S a e p c a o c d g a i n r y h t r o e o c t m i ... -
Page 23: Layout
Control card A001 layout N1 Voltage regulator (+ 20 V) N2 PWM-circuit MMA/TIG N3 Max. current adjustment Comparator Min. current adjustment Current adjustment ON / VRD ON N4 Overheat Comparator protection... -
Page 24: Structure
Structure A001 Z001 3 mm T10 T15... - Page 25 Structure Extracting the control card A001...
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Page 26: Igbt-Transistor Testing
IGBT-transistor testing Discrete-IGBTs (50 A, 600 V) can be tested with an IGBT tester. When changing damaged IGBTs, the whole series must be changed, plus the gate resistors (10 Ω Discrete-IGBT´s tightening torque to the heatsink is 0,6…1,2 Nm! 1 / 6 2... -
Page 27: Notes
Notes...
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