Messer Cutting & Welding K4 Operations Instructions Page 4

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Table of contents Page
Contents/1
4 Description of controls M200, M210....................................................................................... 4/1
4.1 Definition of MIG/MAG welding tasks .............................................................................. 4/1
4.1.1 MIG/MAG welding task selection and operating point adjustment
(without option M210 / program operating mode, one-dial operation)................... 4/2
4.1.2 MIG/MAG welding task selection and operating point adjustment
(without option M210 / manual operating mode, two-dial operation)..................... 4/3
4.2 Non latched, latched, spot operating mode selection ...................................................... 4/3
4.3 Choke setting ................................................................................................................... 4/3
4.3.1 Settings for the standard choke ............................................................................. 4/3
4.3.2 Settings for the electronic choke (WEGA 400 MIG E only) ................................... 4/4
4.4 Signal lights for error messages....................................................................................... 4/4
4.4.1 Error message: Pre-selected welding speed too high / too low............................. 4/4
4.4.2 Error message: Short-circuit .................................................................................. 4/4
4.4.2.1 Short-circuit when the machine is switched on ................................. 4/4
4.4.2.2 Short-circuit during initial welding operation...................................... 4/4
4.4.2.3 Short-circuit any welding operation
(remote ignition)................................................................................. 4/5
4.5 Wire feed speed correction .............................................................................................. 4/5
4.5.1 Wire feed speed correction via remote control (optional) ...................................... 4/5
4.5.2 Wire feed speed correction via remote control on
welding torch (optional).......................................................................................... 4/5
4.6 M210 (optional): digital V / A meter with hold and preset function................................... 4/6
4.6.1 Operating point setting before welding with option M210...................................... 4/7
4.6.1.1 Operating point setting using welding current ................................... 4/7
4.6.1.2 Operating point setting using welding voltage................................... 4/7
4.6.1.3 Operating point adjustment using the material thickness ................. 4/7
4.6.1.4 Operating the operating point using the wire feed speed.................. 4/7
4.6.2 Welding data display during welding process (actual values) ............................... 4/8
4.6.2.1 Welding current – actual value .......................................................... 4/8
4.6.2.2 Welding voltage – actual value.......................................................... 4/8
4.6.2.3 WF speed – actual value................................................................... 4/8
4.6.2.4 Wire feed motor armature current – actual value.............................. 4/8
4.6.3 Welding data display after welding “Hold function”................................................ 4/9
4.6.3.1 Welding current – actual value .......................................................... 4/9
4.6.3.2 Welding voltage – actual value.......................................................... 4/9
4.6.3.3 WF speed – actual value................................................................... 4/9
4.6.3.4 Wire feed motor armature current – actual value.............................. 4/9
4.6.4 Choke tapping specification ................................................................................... 4/9
4.6.5 Error messages on M210 display unit ................................................................ 4/10
4.6.5.1 Short-circuit fault in welding torch / workpiece ................................ 4/10
4.6.5.2 General error messages.................................................................. 4/10
4.7. M110 (optional) digital V / A meter with hold function.................................................... 4/10
4.7.1 Display of actual values during and after welding................................................ 4/10
4.8 Other functions .............................................................................................................. 4/11
4.8.1 Wire burn-back..................................................................................................... 4/11
4.8.2 Gas post-flow time ............................................................................................... 4/11
4.8.3 Current-less gas test............................................................................................ 4/12
4.8.4 Inching the wire electrode.................................................................................... 4/12
4.8.5 Wire creep............................................................................................................ 4/12
4.8.6 Gas pre-flows....................................................................................................... 4/13
4.8.7 Ignition control...................................................................................................... 4/13
4.8.8 Automatic shut-off ................................................................................................ 4/13
4.8.9 Short-circuit monitoring ........................................................................................ 4/13
4.9 Function sequence in operating modes ......................................................................... 4/14
4.9.1 Explanation of signs and functions ...................................................................... 4/14
4.9.2 Non-latched MIG function sequence.................................................................... 4/15
4.9.3 Latched MIG function sequence .......................................................................... 4/16
4.9.4 MIG spot welding function sequence................................................................... 4/17
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