En 2.6.1 Welding Current Regulation And Remote Control; Mma Welding Settings; Tig Welding Function; The Vrd Feature - Kemppi Minarc 220 Operating Manual

2.6.1 Welding current regulation and remote control
The welding current can be adjusted steplessly with the control knob, if panel
adjustment (PANEL) is selected.
If you want to adjust the welding current with the remote control, connect
the remote control to the machine and then select remote control with the
current adjustment selector (4). Supported remote control units are the R10
or the RTC10 of the TTV 220 GV TIG torch.

2.6.2 MMA welding settings

MMA welding is selected when the indicator next to either of the electrode
symbols is lit. The options are RUTILE or BASIC. If needed, press the process
selection button to select the MMA process (3). The machine automatically
sets suitable values to the ignition time, ignition pulse and arc dynamics
based on the rutile/basic selection.

2.6.3 TIG welding function

Select the TIG welding process by pressing the process selection button (3).
Ignition with switch control
(TTC 220 GV torch)
When using the TTC 220 GV torch, the TIG arc can be ignited with switch
control. Gently touch the work piece with the electrode, then press the torch
switch while quickly lifting the electrode off the work piece. This will ignite
the arc quickly and efficiently. To stop welding, release the switch, which will
stop the current and turn off the torch voltage.
Ignition by scratch-start
(other than TTC 220 GV torch)
You can also ignite a TIG arc with the scratch-start method. Gently touch the
work piece with the electrode and quickly lift the electrode from the work
piece to a suitable welding distance to ignite the arc. To stop welding, quickly
pull the electrode away from the work piece.
NOTE!
The torch voltage will remain on.

2.6.4 The VRD feature

The VRD model of the Minarc 220 contains a voltage reduction device, which
reduces the open-circuit voltage below 35 V. This reduces the risk of electric
shock in particularly dangerous environments, such as closed or damp
spaces.
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