Chapter 1 Product Overview 9
Ehave Series Full Digital IGBT CO
2
/MAG/MMA Multifunctional Inverter Welder User Manual
Bottom plate for
installation of the robotic
wire feeder
Bottom plate for
installation of the robotic
wire feeder
Welding power cable
on the workpiece side
Electrically-heated
gas regulator
You must prepare the following:
Shielding Gas
Prepare CO
2
or a mixed gas. (Refer to Section 2.7.6 "Welding Conditions".)
CO
2
: The purity must be at least 99.5% and the moisture must be less than 0.005%.
MAG: Ar (80%) and CO
2
(20%)
Welding Wire
Refer to Section 2.7.6 "Welding Conditions."
1.5 System Features
Duty Cycle
Rated duty cycle refers to the percentage of the time when the welder generates the rated
output in the 10-minute unit time. The rated duty cycle of Ehave CM250/350/350AR/500/500AR
is 60%. See Figure 1-5, which shows the duty cycle of Ehave CM500 as an example. The rated
duty cycle of Ehave CM500H is 100%. See Figure 1-6. The duty cycle of Ehave CM250 is
100% with the load lighter than 193 A. The duty cycle of Ehave CM350/350AR is 100% with the
load lighter than 271 A. The duty cycle of Ehave CM500/500AR is 100% with the load lighter
than 390 A.