Miller Axcess 675 Manual do Proprietário - Página 21

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SECTION 4 − RECOMMENDED SETUP PROCEDURES

4-1. Selecting Weld Cable Sizes*

Y ARC WELDING can cause Electromagnetic Interference.
To reduce possible interference, keep weld cables as short as possible, close together, and down low, such as on the floor.
Locate welding operation 100 meters from any sensitive electronic equipment. Be sure this welding machine is installed
and grounded according to this manual. If interference still occurs, the user must take extra measures such as moving
the welding machine, using shielded cables, using line filters, or shielding the work area.
Weld Output Terminals
Y Turn off power before con-
necting to weld output ter-
minals.
Y Do not use worn, dam-
aged, undersized, or poor-
ly spliced cables.
Positive
Positive
Negative
Negative
*
)
803 824-A
This chart is a general guideline and may not suit all applications. If cable overheating occurs, use next size larger cable.
*
**Cable should be sized for Peak Amperage (Apk) for pulse welding applications.
***Weld cable size (AWG) is based on either a 4 volts or less drop or a current density of at least 300 circular mils per ampere.
2
( ) = mm
for metric use
****For distances longer than those shown in this guide, call a factory applications representative at 920-735-4505.
.
In pulse welding applications using inverter power sources, peak currents can result in extreme voltage drops
producing poor welding characteristics with undersized cables. A recommendation for weld cable size is a
minimum of 2/0 for 300 ampere welding power sources and 4/0 for 450 ampere welding power sources when total
cable length is less than 100 ft (30m).
Weld Cable Size*** and Total Cable (Copper) Length in Weld Circuit Not Exceeding****
100 ft (30 m) or Less
10 − 60%
Welding
60 − 100%
Duty
Amperes**
Duty Cycle
Cycle
100
4 (20)
4 (20)
150
3 (30)
3 (30)
200
3 (30)
2 (35)
250
2 (35)
1 (50)
300
1 (50)
1/0 (60)
350
1/0 (60)
2/0 (70)
400
1/0 (60)
2/0 (70)
500
2/0 (70)
3/0 (95)
600
3/0 (95)
4/0 (120)
2 ea. 2/0
700
4/0 (120)
(2x70)
2 ea. 2/0
800
4/0 (120)
(2x70)
2 ea. 2/0
2 ea. 3/0
900
(2x70)
(2x95)
2 ea. 2/0
2 ea. 3/0
1000
(2x70)
(2x95)
2 ea. 3/0
2 ea. 4/0
1250
(2x95)
(2x120)
150 ft
200 ft
250 ft
(45 m)
(60 m)
(70 m)
10 − 100% Duty Cycle
4 (20)
3 (30)
2 (35)
2 (35)
1 (50)
1/0 (60)
1 (50)
1/0 (60)
2/0 (70)
1/0 (60)
2/0 (70)
3/0 (95)
4/0
2/0 (70)
3/0 (95)
(120)
4/0
2 ea. 2/0
3/0 (95)
(120)
(2x70)
4/0
2 ea. 2/0
3/0 (95)
(120)
(2x70)
4/0
2 ea. 2/0
2 ea. 3/0
(120)
(2x70)
(2x95)
2 ea. 2/0
2 ea. 3/0
2 ea. 4/0
(2x70)
(2x95)
(2x120)
2 ea. 3/0
2 ea. 4/0
3 ea. 3/0
(2x95)
(2x120)
(3x95)
2 ea. 3/0
2 ea. 4/0
3 ea. 4/0
(2x95)
(2x120)
(3x120)
2 ea. 4/0
3 ea. 3/0
(2x120)
(3x95)
2 ea. 4/0
3 ea. 3/0
(2x120)
(3x95)
3 ea. 3/0
4 ea. 3/0
(3x95)
(4x95)
300 ft
350 ft
400 ft
(90 m)
(105 m)
(120 m)
1 (50)
1/0 (60)
1/0 (60)
2/0 (70)
3/0 (95)
3/0 (95)
4/0
4/0
3/0 (95)
(120)
(120)
4/0
2 ea. 2/0
2 ea. 2/0
(120)
(2x70)
(2x70)
2 ea. 2/0
2 ea. 3/0
2 ea. 3/0
(2x70)
(2x95)
(2x95)
2 ea. 3/0
2 ea. 3/0
2 ea. 4/0
(2x95)
(2x95)
(2x120)
2 ea. 3/0
2 ea. 4/0
2 ea. 4/0
(2x95)
(2x120)
(2x120)
2 ea. 4/0
3 ea. 3/0
3 ea. 3/0
(2x120)
(3x95)
(3x95)
3 ea. 3/0
3 ea. 4/0
3 ea. 4/0
(3x95)
(3x120)
(3x120)
3 ea. 4/0
3 ea. 4/0
4 ea. 4/0
(3x120)
(3x120)
(4x120)
3 ea. 4/0
4 ea. 4/0
4 ea. 4/0
(3x120)
(4x120)
(4x120)
S-0007-E
OM-217 751 Page 17