Duty Cycle - Miller Maxtron 450 Owner's Manual

4-2. Process Switch
Settings
0
Shielded Metal Tungsten Inert Gas Metal Arc
Gas Metal Arc
Arc (SMAW) Gas (GTAW) (GMAW)
(GMAW)
Welding;
Panel
Welding; Remote Welding; Remote
Welding
With 60M
Amperage Control Amperage Control
Voltage Control
Series Wire Feeder
L~A
X~JA
g g g
g
~J~ii ~1~J~ii
O~J~~
O~J~17
14 14
14
14
c~
~
c~ ~c-
I ~
o~ ~-o~
I
~
o
I
~
17 17 17
17
For
remote For panel control, For panel control
control, place
AN
place
A/V switch
of voltage, place
switch in Remote in Panel
position,
A/V switch in
14 position, and and Output Panel
position.
Output (Contactor) (Contactor) switch
switch in Remote in On
position.
14/17 position.
4-3. Duty Cycle
And Overheating
Ref. ST-165 852-B
,--
503
(.1)
~
w
w
_____
n~
303
<
2~Q
Ci
~
203
a
-J
U
~
153
U)
1) 15 20 2530 40S) W705)13)tO
Z
DUTY CYCLE
Overheating
Duty Cycle is
percentage
of 10
minutes that unit
can
weld at rated
load without
overheating.
If unit overheats,
thermostat(s)
opens,
output stops,
and cooling
fan
runs.
Wait fifteen minutes for
unit to cool. Reduce
amperage or
duty cycle before welding.
A Exceeding duty cycle
can
damage unit and void
war
ranty.
Example:
100%
Duty Cycle
=
Continuous
Welding
dutyl 4/95 / ST-175 981
OM-167 302
Page 14