Miller Electric OM-842 - Manuel (Page 34)

OM-842 Page 30
# 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, and go to Section 5-4D.
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
2. Define the ApK and AbK values as desired.
ApK defines the peak current during pulsing. AbK
defines the background current.
The ranges for both ApK and AbK are 2.0 to 400 am-
peres, in increments of 1.0 ampere.
3. Press Right/Increase, and the display shows:
# 0 X P E A K T I M E = X .X X
B A C K T I M E = X .X X
4. Define the peak time and background time as desired.
Peak time is the length of time the pulse is at the peak
level. Background time is the length of time the pulse is
at the background level.
The ranges for both peak and background times are
0.5 to 5.0 seconds, in increments of 0.5 seconds.
5. Press Right/Increase, and the display shows:
# 0 X F R E Q U E N C Y =
X X .X X P U L S E S / S E C O N D
6. This display is for informational purposes. It indicates
the calculated frequency of pulses per second.
7. Press Right/Increase, and go to Section 5-4D.
C. Procedure With Pulse Mode On, Pulses Defined
As A Frequency
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
2. Define the ApK and AbK values as desired.
ApK defines the peak current during pulsing. AbK
defines the background current.
The ranges for both ApK and AbK are 2.0 to 400 am-
peres, in increments of 1.0 ampere.
3. Press Right/Increase, and the display shows:
# 0 X P U L S E S / S E C = X X .X
P U L S E P E A K % = X X
4. Define the pulse frequency per second and the per-
centage of pulse time to be spent in pulse peak as
desired.
The range for pulse frequency is 0.1 to 10.0 pulses per
second, in increments of 0.1 pulses per second.
The range for percentage of pulse time to be spent in
pulse peak is 5% to 95%, in increments of 1%.
5. Press Right/Increase, and go to Section 5-4D.
D. Procedure Following Pulse Mode Definition
1. The display shows:
# 0 X P O S T F L O W
T I M E = X X .X
2. Define the shielding gas postflow time as desired.
The range for postflow is 0.0 to 25.0 seconds, in incre-
ments of 0.1 seconds.
3. Press Right/Increase, and the display shows:
C U R R E N T C O N T R O L
< X X X X X X X >
4. Pressing Parameter Select toggles the display be-
tween Panel and Remote. When Remote is defined,
weld amperage can be varied by a remote amperage
control device up to the user-defined weld current level.
When Panel is defined, weld amperage is the value de-
fined as weld current.
Whichever option is showing when this display is ex-
ited will be in effect. Use the Parameter Select push
button to display the desired option (Panel or Remote).
5. Press Right/Increase. The microprocessor control will
enter the Ready condition.
6. In the Ready condition the microprocessor control is
ready to have another program entered or to execute a
program. For information on executing a program, see
Section 6.