rECOMMEndEd WOrk CaBLE sIZEs FOr arC
WELdIng
Connect the electrode and work cables between the appropriate
output studs of the POWER WAVE
®
R450 per the following
guidelines:
• 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 negative (-) 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 INFORMATION” 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 connections 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 therefore 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.
CAUTION
A-9
INSTALLATION
POWER WAVE
®
R450
** 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).
TABLE A.1 - RECOMMENDED CABLE SIZES - RUBBER COVERED COPPER - RATED 167°F (75°C)**
AMPERES
PERCENT DUTY
CYCLE
CABLE SIZES FOR COMBINED LENGTHS OF ELECTRODE AND WORK CABLES
0 TO 50 FT.
50 TO 100 FT.
100 TO 150 FT. 150 TO 200 FT. 200 TO 250 FT.
200
100
2
2
2
1
1/0
250
100
1
1
1
1
1/0
300
100
2/0
2/0
2/0
2/0
3/0
400
100
3/0
3/0
3/0
3/0
4/0
450
100
3/0
3/0
4/0
4/0
2-3/0
500
60
2/0
2/0
3/0
3/0
4/0
550
40
2/0
2/0
3/0
3/0
4/0
Summary of Contents for POWER WAVE R450
Page 47: ...F 4 NOTES L16215 A 01 13 94 22 45 27 43 6 00 18 35 24 76 ...
Page 48: ...F 5 NOTES ...
Page 49: ......
