CWS
−
D100
−
B Welding System
Operation
2005 Swagelok Company, all rights reserved
September 2005
3-3
Current Control Switches
The current control switch group determines the
characteristics of the current output of the power supply
during a weld cycle. See Figure 3-2. The controls
function as follows:
D
IMPULSE
(High Amps) sets the maximum current output
used during the weld cycle. The impulse setting affects
the depth of penetration of the weld profile.
D
MAINTENANCE
(Low Amps) sets the minimum current
output used during the weld cycle. This is the current
level required to
D
maintain the arc
D
provide enough background heat to maintain the
weld puddle.
D
IMPULSE
RATE
(Pulses/Sec) sets the number of changes
per second between the Impulse and Maintenance
current levels during the weld cycle.
D
IMPULSE
WIDTH
(% of Impulse) sets the percentage of
time the current is at the Impulse current level for each
Impulse/Maintenance cycle.
D
ARC
START
(Amps) sets the output current during the
duration period. This current level
D
helps stabilize the initiated arc
D
develops the weld puddle.
Figure 3-2 Current Controls