79
Tucker GmbH,
Mail / Post:
Max-Eyth-Str.1, 35394 Gießen, Germany
Stud welding unit N1500i
As of: Aug 12.2021
Manual part number: BE 1221
6.10
Pulse Welding (in main current)
The welder normally welds with a constant DC current during main arc. For some
applications, it is desirable to pulse the main current. Potential benefits are the ability
to cut through mill-scale, galvanized or contaminated workpiece surface, more arc
stiffness and directional control in corner, angle iron or out of position, and reduced
heat input with less backside marking.
Four parameters are needed to configure square wave pulse welding: peak current,
peak time, background current and background time. Pulse welding is enabled by
enabling F49. The background current level is set by the front panel current (same as
constant current welding). Pulse high level is set in F50. Pulse current high time is set
in F51, and low time in F52. Example below shows a pulse high level of 930A, low
530A and 20ms high and 20ms low pulse welding.
Due to low circuit inductance, it is possible to see current regulation errors when the
pulse low current is too low, or the gap between high and low levels is too big. Use
long and coiled cable around ferrous material can increase circuit inductance. By
default pulse main arc current is disabled.
F49 = ON (Enabled)
F51
F52
F50
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