3
EN-US
Table of contents
General Information 5
Foreword and safety instructions ............................................................................................................... 7
Safety.................................................................................................................................................... 7
Warning Notices on the Device............................................................................................................. 7
National Fronius Technical Support team (TSN) .................................................................................. 9
General ................................................................................................................................................. 9
Tools and measurement devices ............................................................................................................... 10
Tools Required...................................................................................................................................... 10
Measuring and inspection equipment ................................................................................................... 10
Auxiliary materials................................................................................................................................. 10
Troubleshooting guide 11
Measurement points .................................................................................................................................. 13
Measurement points ............................................................................................................................ 13
Replacing components 15
Replace components ................................................................................................................................. 17
Safety.................................................................................................................................................... 17
ESD Guidelines..................................................................................................................................... 17
Opening the Housing ................................................................................................................................. 18
Opening the housing............................................................................................................................. 18
Replacing the BPS 170 / 190 PC Board .................................................................................................... 20
Removing the BPS 170 / 190 PC Board............................................................................................... 20
Installing the BPS 170 / 190 PC Board................................................................................................. 20
Replacing the HF 190 PC board ................................................................................................................ 22
Replacing the HF 190 PC board........................................................................................................... 22
Replacing the LC 1800 PC board .............................................................................................................. 23
Replacing the LC1800 PC board .......................................................................................................... 23
Replacing the secondary diode.................................................................................................................. 24
Replacing the secondary diode............................................................................................................. 24
Replacing the Fan...................................................................................................................................... 25
Replacingthe fan................................................................................................................................... 25
Replacing the Transformer ........................................................................................................................ 26
Removing the transformer .................................................................................................................... 26
Installing the transformer ...................................................................................................................... 26
Replacing the mains cable......................................................................................................................... 28
Replacing the mains cable.................................................................................................................... 28
Closing the Housing................................................................................................................................... 30
Closing the housing .............................................................................................................................. 30
Safety inspection 33
Safety inspection........................................................................................................................................ 35
Safety inspection................................................................................................................................... 35
Responsibility........................................................................................................................................ 35
Visual inspection ........................................................................................................................................ 36
General ................................................................................................................................................. 36
General conditions................................................................................................................................ 36
Welding torch / electrode holder / welding current return terminal........................................................ 36
Grid power supply and connection cables ............................................................................................ 36
Welding circuit....................................................................................................................................... 36
Housing and covers .............................................................................................................................. 37
Adjustment and display devices............................................................................................................ 37
Rating Plate and Warning Stickers ....................................................................................................... 37
Electrical Tests........................................................................................................................................... 38
Ground conductor resistance................................................................................................................ 38