If the Process Selector switch is in a dc output position, the choices are Start Only high frequency or Disabled high frequency.
10.When the desired choice is shown, press Right/In- crease to advance to the next display. The display shows:
# 0 X | P R E F L O W |
TI M E = X X .X
11.If applicable, define the program number (see Section
The range for preflow is 0.0 to 25.0 seconds, in incre- ments of 0.1 seconds.
12.Press Right/Increase, and the display shows:
# 0 X | S T A R T L E V E L |
TI M E = .X X X A M P S = X X X .X
13.Define the start level time and amperage as desired.
When properly used, start level eases arc starting by allowing the use of an amperage value that is higher than initial amperage for a short length of time.
The range for start level time is 0.0 to 15.0 seconds, in increments of 0.1 seconds. The range for start level amperage varies from 2.0 to 400 amperes, in incre- ments of 1.0 amperes.
14.Press Right/Increase, and the display shows: a. For
# | 0 X | I N I T I A | L |
T | I M E = X X .X A M P S = X X X .X | ||
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b.For
#0 X I N I T I A L
A M P S = X X X .X
15.Define the initial current level time (if applicable) and amperage as desired.
The range for initial current level time is 0.0 to 25.0 sec- onds, in increments of 0.1 seconds. The range for initial current level amperage varies from 2.0 to 400 am- peres, in increments of 1.0 amperes.
16.Press Right/Increase, and the display shows:
# 0 X I N I T I A L S L O P E
TI M E = X X .X
17.Define the initial slope time as desired.
The range for initial slope time is 0.0 to 25.0 seconds, in increments of 0.1 seconds.
18.Press Right/Increase, and the display shows:
* * P U L S E M O D E I S * *
>X X <
19.Pressing Parameter Select toggles the display be- tween pulse mode On and pulse mode Off. Three possibilities exist at this point, as follows:
Pulse mode On is desired and pulses are to be defined as time spent in peak current and background current (see Step 20).
Pulse mode On is desired and pulses are to be defined as a frequency, with peak current defined as a percent- age of the total period (see Step 20).
Pulse mode Off is desired (see Step 21).
20.To define pulse mode On, proceed as follows:
a.Be sure the desired means of defining pulse mode has been selected according to Section
b.Use the Parameter Select push button to select pulse mode On, and press Right/Increase to ad- vance to the next display while ”On” is displayed.
c.If pulses are being defined as time values, go to Section
If pulses are being defined as a frequency, go to Section
21.To define pulse mode Off, proceed as follows:
a.Use the Parameter Select push button to select pulse mode Off, and press Right/Increase while ”Off” is displayed. The display shows:
# 0 X | W E L D |
A M P S = X X X .X
b.Define the weld current as desired.
The range for weld current varies from 2.0 to 400.0 amps, in increments of 1.0 amperes.
c.Press Right/Increase. Go to Section
B.Procedure With Pulse Mode On, Pulses Defined In Time Values
1.The display shows:
# 0 X P U L S E | A p K | = X X X .X |
P U L S E | A b K | = X X X .X |
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2.Define the ApK and AbK values as desired.
ApK defines the peak current during pulsing. AbK defines the background current.