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3. GENERAL NOTICE OF OPERATION
3.1 Rated Duty Cycle
CAUTION
⚫
Use this welding power source at or under the rated duty cycle. Exceeding the rated duty
cycle limitation may result in damage to the welding machine.
⚫
Built-up dust on the transistor or the cold plate on the rectifier may affect the
equipments. Take off the cover of the welding power source once a half year, and then
remove dust by blowing moisture-free compressed air on each part.
The rated duty cycle of the welding power source is the following:
CPTX-I 400 2W: 100% at 400A.
CPTX-I 500 2W: 100% at 500A
⚫
The duty cycle of the welding power source is also limited by the duty cycles of combined
accessories such as welding torches. Use the welding machine within the lowest rated duty cycle
of the accessories.
100%
Duty
Cy
cl
e (%
)
0
100
50
400
300
100
200
Welding Current (A)
CPTX-I 400 2W
usable range
100%
Duty
Cy
cl
e (%
)
0
100
50
500
400
300
100
200
Welding Current (A)
CPTX-I 500 2W
usable range
