Kemppi MinarcTig 180MLP Manuale utente

Service manual

MinarcTig 180MLP

Version 1.0

180MLP

MinarcTig

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................................................................................... 13

Setup....................................................................................................14

Setup functions....................................................................................15-17

Error codes...........................................................................................18

Structure.............................................................................................. 19

Power semiconductors testing and replacing...................................... 20

Programming.......................................................................................21

Troubleshooting...................................................................................22

Technical data

Mains voltage 1 ~230 V ±15%, 50 / 60 Hz

TIG

MMA Max. 6,7 kVA (180 A / 17,2 V)

Max. 7,0 kVA (140 A / 25,6 V)

180 A / 17,2 V

120 A / 14,8 V

140 A / 25,6 V

100 A / 24 V

Supply current, I1max TIG

MMA 29 A (180 A/17,2 V)

31 A (140 A/25,6 V)

Fuse 16 A delayed

TIG 35 % ED 180 A/17,2 V

100 % ED 120 A/14,8 V

MMA 35 % ED 140 A/25,6 V

100 % ED 100 A/24 V

Welding range TIG

MMA 5 A/10,2 V-180 A/17,2 V

10 A/20,4 V-140 A/25,6 V

Idle Power TIG

MMA -

25 W

MMA welding electrodes MMA Ø1,5-3,25 mm

Load capacity

Supply current, I1eff TIG

MMA 18 A (120 A/14,8 V)

22 A (100 A/24,0 V)

Connection cable / fuse 3 x 2,5 mm² - 3 m Euro Schuko

Open circuit voltage 95 V

Power ratio at max. current TIG / MMA 0,62 / 0,63

Efficiency at max. current TIG / MMA 0,75 / 0,81

Spark voltage 7-13 kV

External dimensions(L x W x

H) (400 x 180 x 340) mm

Weight 7,8 kg (8,4 kg with supply cable)

Degree of protection IP 23 C

Operating temperature range - 20 °C…+ 40 °C

Recommended generator > 7 kVA

TIG 35 % ED

100 % ED

MMA 35 % ED

100 % ED

Rated power

Load capacity

Main circuit diagram

Solenoid valve, Y001 Fan, M001

Main switch, S1

Spark transformer, T003

Choke, L002Main transformer, T001

Aux. transformer, T002

Shunt resistor, R001

PTC, 140 °C

PTC, 120 °C

Control card

Main circuit card

Spark generator card, A002

Panel card, P001

Block diagram

Control card A001

Aux. Voltage development

Undervoltage monitoring

Over voltage monitoring

Temperature monitoring

Solenoid valve control

Fan control

Power supply control

Main circuit card Z001

Net over voltage protection

DC-link charging

EMI-filter

Primary rectifier

Energy reserve

”Dual-forward”-inverter

Main transformer

Secondary rectifying

Panel card P001

Adjustment potentiometer

Parameters selection

Overheat protection signal light

Main switch signal light

Spark generator card A002

” Spark voltage generator

(=voltage multiplier)

Spark voltage adjustment

Main circuit card Z001

Secondary rectifier

Current transformer,

DC-link charging,

resistors and relay

EMI-filter

IGBTs, gate

resistors, return

current diodes

Main transformer,

T001

Smoothing capasitors

Primary rectifier

Connector to A001

Operating diagram

- Net over voltage

protection

- DC-link charging

-EMI-filter

- Primary rectifier

-Energyreserve

- Dual-forward-inverter

- Main transformer

- Secondary rectifier

Z001

Connectors

X16 X5 X1

X12

X11

X15

X14

X13

X10

X1 Power supply voltage 230 Vac

X2 Connector A001

X3 Power supply voltage 230 Vac

X4 Shunt resistor, (-)

X5 Machine body, equipment earth

X9 Aux. transformer T002 supply voltage ~230 Vac

X10 Aux. transformer T002 supply voltage ~230 Vac

X11 Supply voltage to spark generator card A002

Z001 connectors

X12 Supply voltage to spark generator card A002

X13 Secondary choke L002, (+)

X14 PTC, main transformer

X15 PTC, main transformer

X16 Machine body, equipment earth

Measuring point A. X1, X3

Measuring point B. X2/6, X2/12

Measuring point C Primary rectifier

Measurings

Measuring point A.

Supply voltage, main circuit card Z001 Measuring point B.

Gate control pulse (X2/6, X2/12), no load

Measuring point C.

DC-link charging (primary rectifier)

Control card A001

X13X14

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

Connectors

X1/1 I2 measure

X1/2 U2 measure

X1/3 D1 data

X1/4 D1 data

X1/5 D1 data

X1/6 Torch potentiometer

X1/7 Remote potentiometer

X1/8 Current control

X1/9 D2 data

X1/10 D2 data

A001 / X1

X1/11 D2 data

X1/12 Dynamics

X1/13 Powersource type

X1/14 Pedal start

X1/15 + 5 V

X1/16 GND

X2/1 GND

X2/2 Relay + 24 V

X2/3 -

X2/4 PTC

X2/5 -

X2/6 Gate control

X2/7 Overvoltage, opto

X2/8 Relay on/off

X2/9 U2 measure

X2/10 PTC

A001 / X2

X2/11 -

X2/12 Gate control

X3/1 PTC

X3/2 PTC

A001 / X3

X5/1 GND

X5/2 -

X5/3 24 V

X5/4 Pedal start

X5/5 Remote pot

X5/6 -

X5/7 + 5 V

A001 / X5

X6/1 GND

X6/2 SW 1

X6/3 SW 2

X6/4 Start

X6/5 Potentiometer

X6/6 -

X6/7 + 5 V

A001 / X6

X8/1 21 Vac

X8/2 GND

A001 / X8

X9/1 I1 measure

X9/2 I1 measure

A001 / X9

X13/1 24 V

X13/2 GND

A001 / X13

X14/1 Spark on / off

X14/2 Solenoid valve (+)

X14/3 -

X14/4 Spark on / off

X14/5 Solenod valve (-)

X14/6 -

A001 / X14

H1 Aux. voltage + 5 V (LED)

H2 Aux. voltage + 24 V (LED)

Indice

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