Miller Maxstar 200 DX, Owner'S Manual

Page: 23 / 94

OM-2226 Page 17
4-5. Duty Cycle And Overheating
ST-189 770-A
Duty Cycle is percentage of 10 min-
utes that unit can weld at rated load
without overheating.
If unit overheats, output stops, a
Help message is displayed (see
Section 7-3), and cooling fan runs.
Wait fifteen minutes for unit to cool.
Reduce amperage or voltage, or
duty cycle before welding.
NOTICE − Exceeding duty cycle
can damage unit and void warranty.
150 A @ 60% Duty Cycle For Stick Process (Other Voltages)
6 Minutes Welding 4 Minutes Resting
Overheating
0
15
A or V
OR
Reduce Duty Cycle
Minutes
175 A @ 60% Duty Cycle For TIG Process (Other Voltages)
90 A @ 100% Duty Cycle For 115 Volt Single-Phase Stick Process
125 A @ 100% Duty Cycle For 115 Volt Single-Phase TIG Process