Kemppi Kempact 251R Operating Manual

Also see for KEMPACT 181A: Quick guide Service manual

EN5. USING CONTROL PANELS5.1 Regular control panelDYNAMICS UW0061692T / 4TGAS MIGHOT SPOTSPOT /CYCLEPOST GASmminMANUAL4TV1. 2. 3.4. 5. 6. 7.8.9.10.Models featuring the regular (R) control panel offer the following control functions andfeatures.1. Control knob for welding dynamics2. Control knob for wire feed speed3. Control knob for welding voltage4. Shielding gas button5. Timer button for spot welding and cycle arc welding6. 2T/4T gun switch latching button7. Selection for MIG/MAG or HOT SPOT function8. Parameter display9. Overheating indicator10. WireLine service indicator1. Control knob for welding dynamicsDynamics function controls the rate of rise of current when the filler wire is in short circuitwith the welding plate. This control adjustment is necessary due to the alternative weldingparameters, materials, wire sizes, gas types and current values used.The welding dynamics scale is –9 to +9. Negative values make the rise of current slower, whichresults in a hotter and more fluid weld characteristic. Positive values make the rise of currentfaster, which results in a colder welding condition. This can result in more spatter duringwelding depending on the filler wire size and type used.How to find the optimal dynamics setting?Start by setting ‘0’ and make a test weld after selecting the correct wire feed speed andvoltage values. Fine tune the welding arc by trying different values in the negative (-) andpositive (+) sides of the dynamics scale.2. Control knob for wire feed speedThis control knob increases and reduces the speed of filler wire delivery to the welding arc.The scale is regulated in meters per minute. There is also a graphical display bar indicating theproportion of motor speed selected.Kempact 251R, 253R, 323R, 181A, 251A, 253A, 323A18