Lincoln Electric POWER WAVE R500, Руководство оператора, Страница: 12 / 56

RECOMMENDED WORK CABLE
SIZES FOR ARC WELDING
Connect the electrode and work cables between the appropriate
output studs of the POWER WAVE
® R500 per the following guide-
lines:
• Most welding applications run with the electrode being positive
(+). For those applications, connect the electrode cable
between the wire drive feed plate and the positive (+) output
stud on the power source. Connect a work lead from the nega-
tive (-) power source output stud to the work piece
• When negative electrode polarity is required, such as in some
Innershield applications, reverse the output connections at the
power source (electrode cable to the negative (-) stud, and
work cable to the positive (+) stud).
Negative electrode polarity operation WITHOUT
use of a remote work sense lead (21) requires the
Negative Electrode Polarity attribute to be set.
See the Remote Sense Lead Specification section
of this document for further details.
-------------------------------------------------------------
For additional Safety information regarding the electrode and
work cable set-up, See the standard “
SAFETY INFORMA-
TION ” located in the front of this Instruction Manual.
General Guidelines
• Select the appropriate size cables per the
“Output Cable Guidelines” below.
Excessive voltage
drops caused by undersized welding cables and poor connec-
tions often result in unsatisfactory welding performance.
Always use the largest welding cables (electrode and work)
that are practical, and be sure all connections are clean and
tight.
Note: Excessive heat in the weld circuit indicates undersized
cables and/or bad connections.
• Route all cables directly to the work and wire
feeder, avoid excessive lengths and do not coil
excess cable.
Route the electrode and work cables in close
proximity to one another to minimize the loop area and there-
fore the inductance of the weld circuit.
• Always weld in a direction away from the work
(ground) connection.
Table A.1 shows copper cable sizes recommended for different
currents and duty cycles. Lengths stipulated are the distance
from the welder to work and back to the welder again. Cable
sizes are increased for greater lengths primarily for the purpose
of minimizing cable drop.
A-6
INSTALLATION POWER WAVE ® R500
CAUTION
Amperes
200
250
300
350
400
450
500
550
Percent Duty
Cycle
100
100
100
100
100
100
60
40
0 to 50 Ft.
2
1
2/0
2/0
3/0
3/0
2/0
2/0
50 to 100 Ft.
2
1
2/0
2/0
3/0
3/0
2/0
2/0
100 to 150 Ft.
2
1
2/0
3/0
3/0
4/0
3/0
3/0
150 to 200 Ft.
1
1
2/0
3/0
3/0
4/0
3/0
3/0
200 to 250 Ft.
1/0
1/0
3/0
4/0
4/0
2-3/0
4/0
4/0
CABLE SIZES FOR COMBINED LENGTHS OF ELECTRODE AND WORK CABLES [RUBBER COVERED
COPPER - RATED
167°F (75°C)]
**
OUTPUT CABLE GUIDELINES
(Table A.1)
** Tabled values are for operation at ambient temperatures of 104°F (40°C) and below. Applications above 104°F (40°C) may require cables larger
than recommended, or cables rated higher than 167°F (75°C).