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
V
O
LTA
G
E
AMPERES
300
Summary of Contents for Axcess E 300
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Page 63: ...Trouble OM 244 814 Page 59 Notes ...
Page 68: ...OM 244 814 Page 64 Figure 14 2 Circuit Diagram For Axcess E 300 2 Of 2 ...
Page 69: ...Circuits OM 244 814 Page 65 248 763 E Part 2 Of 2 ...
Page 70: ...OM 244 814 Page 66 Figure 14 3 Circuit Diagram For Axcess E 450 1 Of 2 ...
Page 71: ...Circuits OM 244 814 Page 67 245 131 F Part 1 Of 2 ...
Page 72: ...OM 244 814 Page 68 Figure 14 4 Circuit Diagram For Axcess E 450 2 Of 2 ...
Page 73: ...Circuits OM 244 814 Page 69 245 131 F Part 2 Of 2 ...
Page 74: ...OM 244 814 Page 70 Figure 14 5 Circuit Diagram For Axcess E 675 1 Of 2 ...
Page 75: ...Circuits OM 244 814 Page 71 250 570 C Part 1 Of 2 ...
Page 76: ...OM 244 814 Page 72 Figure 14 6 Circuit Diagram For Axcess E 675 2 Of 2 ...
Page 77: ...Circuits OM 244 814 Page 73 250 570 C Part 2 Of 2 ...
Page 78: ...OM 244 814 Page 74 Figure 14 7 Circuit Diagram For Axcess E Module ...
Page 79: ...Circuits OM 244 814 Page 75 250 571 C ...
Page 80: ...OM 244 814 Page 76 Notes ...
Page 106: ...Notes ...