Contents
Notes on the use of these operating instructions
099-005084-EW501
22.09.2011
3
1
Contents
1
Contents.................................................................................................................................................. 3
2
Safety instructions................................................................................................................................. 5
2.1
Notes on the use of these operating instructions .......................................................................... 5
2.2
Explanation of icons....................................................................................................................... 6
2.3
General .......................................................................................................................................... 7
2.4
Transport and installation ............................................................................................................ 11
2.5
Ambient conditions....................................................................................................................... 12
2.5.1
In operation................................................................................................................... 12
2.5.2
Transport and storage .................................................................................................. 12
3
Intended use ......................................................................................................................................... 13
3.1
Applications.................................................................................................................................. 13
3.1.1
MIG/MAG standard welding ......................................................................................... 13
3.2
Overview of device types............................................................................................................. 13
3.2.1
Multi-voltage machine (MV).......................................................................................... 13
3.3
Documents which also apply ....................................................................................................... 14
3.3.1
Warranty ....................................................................................................................... 14
3.3.2
Declaration of Conformity ............................................................................................. 14
3.3.3
Welding in environments with increased electrical hazards......................................... 14
3.3.4
Service documents (spare parts and circuit diagrams) ................................................ 14
4
Machine description – quick overview .............................................................................................. 15
4.1
Front view .................................................................................................................................... 15
4.2
Rear view ..................................................................................................................................... 16
4.2.1
Inside view.................................................................................................................... 17
4.3
Machine control – Operating elements ........................................................................................ 18
4.3.1
Mira 151........................................................................................................................ 18
4.3.2
Mira 221 MV ................................................................................................................. 19
4.3.3
Mira 251........................................................................................................................ 20
4.3.4
Mira 301........................................................................................................................ 21
5
Design and function............................................................................................................................. 22
5.1
General ........................................................................................................................................ 22
5.2
Installation.................................................................................................................................... 23
5.3
Machine cooling ........................................................................................................................... 23
5.4
Workpiece lead, general .............................................................................................................. 23
5.5
Mains connection ......................................................................................................................... 24
5.6
Mira 151 ....................................................................................................................................... 24
5.6.1
Mira 221 MV ................................................................................................................. 25
5.6.1.1
Connection with 230 V mains voltage........................................................... 25
5.6.1.2
Connection with 400 V mains voltage........................................................... 26
5.6.2
Mira 251, 301................................................................................................................ 27
5.7
Welding torch and workpiece line connection ............................................................................. 28
5.8
Shielding gas supply .................................................................................................................... 30
5.8.1
Connecting the shielding gas supply............................................................................ 31
5.8.2
Setting the shielding gas quantity................................................................................. 32
5.9
Inserting the wire electrode.......................................................................................................... 33
5.9.1
Inserting the wire spool ................................................................................................ 33
5.9.2
Changing the wire feed rollers...................................................................................... 34
5.9.3
Inching the wire electrode ............................................................................................ 35
5.9.4
Spool brake setting....................................................................................................... 37
5.9.5
MIG/MAG operating point............................................................................................. 38
5.10
MIG/MAG functional sequences / operating modes .................................................................... 38
5.10.1
Explanation of signs and functions............................................................................... 38
5.10.2
Non-latched operation .................................................................................................. 39
5.10.3
Latched operation......................................................................................................... 39
5.10.4
Spot welding ................................................................................................................. 40
5.10.5
Interval.......................................................................................................................... 41