Kjellberg SmartFocus 300 Short Instruction Manual page 79

Pos : 17.77 /Str omquellen/Smartfoc us/Ein- und Aussc halten des Plas mabrenners @ 13\mod_1411993720014_19.doc x @ 205559 @ @ 1
Switch ON and OFF of the plasma torch
The pilot arc will be established by the "torch ON"-signal from the guiding system (X102:B2-B3) or when
pressing the ON-button of the remote control FB after the gas preflow. The successful ignition of the pilot arc
is potential free released through the signal "current flows" (X102: A3-A4). This signal is from ignition until
down slope.
The arc time is limited to approx. 10 s. After contacting the workpiece the main arc automatically becomes
ignited and the cutting process starts. The signal "main arc ON" (X102: A1 A2) transmitted potential free the
achieved cutting power according to the current nominal value
The plasma arc extinguishes if there is no "torch ON"- signal from the CNC control of the guiding system or
the "OFF"-button on remote control is activated or when overrunning the workpiece.
Pos : 17.78 /Str omquellen/Smartfoc us/flieg.Ansc hnei den @ 13\mod_1411996268710_19.doc x @ 205578 @ @ 1
Flying cutting start
Flying cutting is only possible with switch position 3 of the tumbler switch S7 "technology" (4).:
• switch ON torch (ignite pilot arc) 10 to 20 mm before the edge of the workpiece
• move plasma torch toward the workpiece
• as far as the pilot arc contacts the workpiece the main arc establishes
• at thin sheet metal the starting speed should be reduced
• the height between swirl gas cap and workpiece should be in a range of 1.0 to 4.0 mm. The respective
torch distances are given in the cutting starts.
Pos : 17.79 /Ü bersc hriften/unterstrichene Ü bersc hrift/Lochs tec hen @ 0\mod_1203340131237_19.doc x @ 3741 @ @ 1
Hole piercing
Pos : 17.80 /Warnung, Vorsic ht, Verbot, Gebot, Hi nweis /War nung (or ang e) / R ettungszeic hen (grün)/Gefährdung durch hoc hs pritzendes Material @ 0\mod_1201867373864_19.doc x @ 3510 @ @ 1
Upcoming hot material can lead to endangerments (risk of burns and fire)!
Pos : 17.81 /Str omquellen/HiFocus /HiFocus 280i/360i/440i/Loc hstec hen @ 0\mod_1201785167962_19.doc x @ 3364 @ @ 1
• when hole piercing above the workpiece the height for ignition has to be adjusted, depending on the plate
thickness (values are given in the cutting chart)
• after the ignition of the pilot arc the main arc establishes immediately
• the torch should start movement simultaneously with the ignition to reduce the danger of damaging torch
parts. Upcoming material can effect nozzle, swirl gas nozzle or nozzle gas
• for thicker materials the following procedure is recommended:
- adjust ignition height acc. cutting chart (1.2 - 2 x cutting height)
- pierce delay acc. cutting chart
- lift torch during main arc slightly to avoid that spatter can damage the torch head
- after the material is pierced through the torch returns to the optimum cutting height
Pos : 17.82 /Steuer module--------------- Seitenumbr uch --------------- @ 0\mod_1197390577023_19.doc x @ 1454 @ @ 1
Power source Smart Focus 300
WARNING
63