Final Slope Control And Final Amperage Control; Spot Time Control - Miller Syncrowave 250 DX Technical Manual

4-19. Final Slope Control And Final Amperage Control

4-20. Spot Time Control

TM-359 Page 50
(CE Nameplate)
1
2
1
(CE Nameplate)
1 Final Slope Control
Indicator light is on when Final
Slope control function is active.
Note: Final Slope control function
1
is inactive when Spot Time func-
tion is active.
Use control to reduce amperage
over a set period of time (0−15
seconds) at the end of the weld
cycle when NOT using a remote
current control.
2 Final Amperage Control
Indicator light is on when Final
Amperage control function is ac-
tive.
Note: Final Amperage control
function is inactive when Spot
Time function is active (see Sec-
tion 4-20).
2
Final amperage is the amperage
to which weld amperage has
sloped down to (0−100% of am-
perage set on Amperage Adjust
control).
Application:
Final Slope should be used while
GTAW welding materials that are
crack sensitive, and/or the opera-
tor wants to eliminate the crater at
the end of the weld.
Note: This applies if the operator
is using an on/off only type control
to start and stop the welding pro-
cess.
Note: Do not use this function
with a foot or finger amperage
control.
NOTE: Function is enabled, when
LED is lit.
1 Spot Time Control
Indicator light is on when Spot
Time function is active. When
Spot Time function is active, Ini-
tial Time, Initial Amperage, Final
Slope, and Final Amperage
functions are inactive (see Sec-
tion 4-17).
Used with the (GTAW) TIG Spot
process, generally with a direct
current electrode
(DCEN) set-up.
Use control to select 0−15 sec-
onds of spot time.
Use Amperage Adjust control
1
(see Section 4-11) to set amper-
age.
Application:
TIG spot welding is used for join-
ing thinner materials that are in
close contact with the fusion
method. A good example would
be joining coil ends.
NOTE: Function is enabled,
when LED is lit.
Syncrowave 250 DX
negative