OM-244 814 Page 24
6-3. Duty Cycle And 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.
NOTICE − Exceeding duty cycle
can damage unit and void warranty.
Overheating
0
15
A/V
OR
Reduce Duty Cycle
Minutes
duty1 4/95 − 206 789-A
Continuous Welding
100% Duty Cycle At 675 Amperes
% DUTY CYCLE
10 20 30 40 50 60 70 80 90 100
100
200
300
400
500
600
700
800
900
1000
WELD AMPERES
6-4. Volt-Ampere Curves
va_curve1 4/95 − 221 502-A
Volt-ampere curves show minimum
and maximum voltage and
amperage output capabilities of
unit. Curves of other settings fall
between curves shown.
. This volt-ampere curve
represents the dynamic output
of the unit with a static load.
0
10
20
30
40
50
60
70
80
0 100 200 400 500 600 700 800 900 1000
CV MODE
VOLTA GE
AMPERES
300
To Next Page
Loading...
