Migatronic PILOT 1800, Instruction Manual

Page: 20 / 86

20
Pulse welding
This section contains functions for
pulse welding and is divided in two:
the above connects or disconnects
pulse welding, the below contains
the diffent pulse parameters.
Pulse cannot be connected or disconnected during
the welding process.
Pulse
Pulse welding has been selected.
No pulse
Welding without pulse has been selected. The
pulse parameters cannot be activated.
Pulse parameters
The pulse parameters can be both selected and
changed during pulse welding. The figure below
illustrates the meaning of the three pulse
parameters:
Set welding
current
Base current
pulse time
pause time
time
Amp
The pulse time
Reflects the time the machine is welding with
the pulse current. The pulse current is the adjusted
welding current. Time is adjustable between 0.01 and
10 seconds.
Pause time
Angiver den tid der svejses på grundstrøm.
Tiden kan indstilles mellem 0,01 og 10 se-
kunder.
Base amp
Is set as a percentage value between 1 and
99% of the current level set on the display (= pulse
current), although this percentage cannot be less
than a value that corresponds to 5 A.
Parameters for MMA welding
and TIG spot welding
Parameters can be both selected
and adjusted during welding.
Arc-power
The arc power function is used to stabilise the
arc in MMA welding. This can be achived by in-
creasing welding current by a percentage value when
metal droplets are short-circuited. The additional
current ceases when the short circuit is no longer
present.
Set welding
current
short-
circuit
Additional current
supply from the arc
power function
time
Amp
Arc power can be adjusted between 0 and 150% of
the welding current setting.
E.g. If the welding current is set to 40A and arc
power to 100% the additional current is 40 A
equals 80 A when doing arc power. If the arc
power is set to 150% the additional current is
60 A equals 100 A when doing arc power.
Hot start
Hot start is a function that helps to establish
the arc during MMA welding. This can be achieved
by increasing welding current (when the electrode is
applied to the workpiece) by a certain percentage
value in relation to the set value. This increased start
amp is maintained for half a second, after which it
decreases exponentially over a period of one second
to the set value of welding current.
Set welding
current
Welding
start
0,5 s
Additional
current supply
from hot-start-
function
time
Amp
The hot start value reflects the percentage value by
which initial current is increased, and can be set
between 0% and 100%.
Spot time
Spot time is the time for the production of a spot-
weld and can only be used with the TIG process. The
time includes any slope-up and slope-down times
and can be set only after spot trigger mode has been
selected on the keypad.
Set welding
current
slope-up
spot
welding time
slope-down
time
Amp
trig down ( ) / up ( )