Duty Cycle And Overheating; Volt-Ampere Curves - Miller Electric Auto Axcess 675 Owner's Manual

3-3. Duty Cycle And Overheating

Overheating

3-4. Volt-Ampere Curves

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0
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OM-201 540 Page 12
100% Duty Cycle At 675 Amperes
Continuous Welding
0
Minutes
CV MODE
300 400 500 600
AMPERES
15
OR
Reduce Duty Cycle
700 800 900 1000
Duty Cycle is percentage of 10 min-
utes 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.
NOTICE − Exceeding duty cycle
can damage unit and void warranty.
A/V
duty1 4/95 − 206 789-A
Volt-ampere curves show minimum
and maximum voltage and amper-
age output capabilities of unit.
Curves of other settings fall be-
tween curves shown.
.
This volt-ampere curve repre-
sents the dynamic output of the
unit with a static load.
va_curve1 4/95 − 221 502-A