Welding Task Selection - EWM T 4.00 - AC/DC Comfort 2.0 Operating Instruction

Welding procedure
TIG welding
4.1.2

Welding task selection

The setting of the tungsten electrode diameter has a direct influence on the machine functionality, TIG
ignition behaviour and minimum current limits. The ignition energy is controlled by the set electrode
diameter. Smaller electrode diameters requires less ignition current and less ignition current time than
greater electrode diameters. The set value should correspond to the tungsten electrode diameter. The
value can also be set to meet individual requirements, e.g. for thin panels a smaller diameter is
recommended to reduce the ignition energy.
The electrode diameter setting determines the minimum current limit, which in turn affects the ignition,
main and secondary current. The minimum current limits have a positive effect on the ignition behaviour
and ensure a very high arc stability for each electrode diameter selected. The minimum current limit
function is enabled ex works, but can be disabled with parameter
menu > see 4.7 chapter.
For foot-operated remote control mode, minimum current limits are disabled by default.
The following welding task is an example of use:
16
EXIT
4s
Figure 4-1
in the machine configuration
?
mm
inch
099-00T400-EW501
21.10.2016