OM-2240 Page 16
4-4. Duty Cycle And Overheating
210 167
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.
Y
Exceeding duty cycle can
damage unit and void
warranty.
130 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
150 A @ 60% Duty Cycle For TIG Process (Other Voltages)
90 A @ 100% Duty Cycle For 115 Volt Single-Phase Stick Process
100 A @ 100% Duty Cycle For 115 Volt Single-Phase TIG Process
0
50
100
150
200
250
10
100
% DUTY CYCLE
OUTPUT AMPERES
STICK
TIG
TIG (115V INPUT)
STICK (115V INPUT)
20
30
40
50 60 70 80 90
Continuous Welding
100%dutycycle
