Unitor UWI-230TP Скачать руководство пользователя

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PROBLEM

CASE

SOLUTION

Poor welding quality

Spattering occurs during MMA

welding.

The arc switches off while welding

Make sure welding polarity is correct, the earth

clamp is fixed correctly and check the hot-

start and arc-force values that have to be
decreased if they are too high.

The inversion board 0071 or the front panel

0015 must be replaced.

Содержание UWI-230TP

Страница 1: ...Ultima modifica Last Update 08 10 2015 Rev1 0 UWI 230TP ACDC Reparation Manual UWI 230TP AC DC...

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Страница 3: ...rd if it is damaged replace the power board Picture 2 You have to check if the LED on rear panel is on Picture 4 You have to check the value of the main power supply The protection devices of the line...

Страница 4: ...Picture 8 Replace it and if it is still not working replace the Power Board Replace Power Board 0070 The output voltage in MMA TIG is about 13 5V and the Machine doesn t weld The wires that connect th...

Страница 5: ...ent The remote control is damaged Check that the 4 pin connector picture 13 is correctly inserted on the front panel The Front Panel could be damaged Insert the wires into the connectors correctly and...

Страница 6: ...f while welding AC Make sure welding polarity is correct the earth clamp is fixed correctly and check the hot start and arc force values that have to be decreased if they are too high The inversion bo...

Страница 7: ...of the short circuit is very high they become an open circuit Picture 2 To check the PFC of the switching power supply unit carry the following measurements with a diode tester Should there be a short...

Страница 8: ...ou have to check the continuity with a diode tester between points D1 F1 and D2 F2 If there is no continuity you have to check the single parts Picture 4 If you see L1 ON the OVERCAT is working Check...

Страница 9: ...rectifier must be replaced Rheofore Probe Rheofore Probe F Rosso D1 D2 Nero F Rosso D1 D2 Nero F Nero D1 D2 Rosso F Nero D1 D2 Rosso Picture 6 To check the inverter carry out the following measuremen...

Страница 10: ...wo terminals of the thermal devices are well inserted in the 8 pin white connector on the power board 0070 Picture 8 Make sure that the fan cables 24 V are correctly inserted 2 pin connector on the po...

Страница 11: ...he Vout cable Red Probe Black Probe Measure Pin 4 of the amphenol Negative Socket OL Pin 8 of the amphenol Positive shocket OL Make sure that the output filter board 0074 cables are correctly inserted...

Страница 12: ...SX red UP DOWN black 0 3 SX black UP DOWN red OL DX red UP DOWN black OL DX black UP DOWN red 0 3 At the ends of the two transils see below positioned on the snubber board OL must always be measured C...

Страница 13: ...s MEMORY RESETTING Picture 12 Check continuity with a diode tester between points A Y of the power board and B X poles of the connector that goes to the front panel Connect the MINIFIT 4 PINS at the p...

Страница 14: ...ture 13 Checking the remote cable With a tester diode mode check the data table follow Probe red Probe black Misura C 9 OL D 4 OL E 3 OL Picture 14 Check if the flat cable has a good connection in the...

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