Lincoln Electric Vantage LE500X Operator's Manual page 17

VANTAGE 441X/LE500X
®
CABLE INDUCTANCE AND ITS EFFECTS ON
WELDING
Excessive cable inductance will cause the welding performance to
degrade. There are several factors that contribute to the overall
inductance of the cabling system including cable size and loop
area. The loop area is de ned by the separation distance between
the electrode and work cables and the overall welding loop length.
The welding loop length is de ned as the total of length of the
electrode cable (A) + work cable (B) + work path (C) (See Figure
A.5).
FIGURE A.5
C
To minimize inductance always use the appropriate size cables,
and whenever possible, run the electrode and work cables in close
proximity to one another to minimize the loop area. Since the most
signi cant factor in cable inductance is the welding loop length,
avoid excessive lengths and do not coil excess cable. For long
work piece lengths, a sliding ground should be considered to keep
the total welding loop length as short as possible.
Electrode Voltage Sensing
The remote electrode sense lead (67) is built into the 5-pin
ArcLink control cable and is always connected to the wire drive
feed plate when an ArcLink wire feeder is present. Enabling or
disabling electrode voltage sensing is application speci c, and
automatically con gured by the active weld mode.
Voltage sense leads requirements are based on the weld process
(See Table A.3)
TABLE A.3
Process
GMAW
FCAW
GTAW
SMAW
(1) The electrode voltage sense lead (67) is automatically enabled
by the weld process, and integral to the 5 pin ArkLink control
cable.
B
A
Electrode Voltage Sensing (1)
67 lead
67 lead
Voltage sense at studs
Voltage sense at studs
CONTROL CABLE CONNECTIONS
General Guidelines
Genuine Lincoln control cables should be used at all times (except
where noted otherwise). Lincoln cables are speci cally designed
for the communication and power needs of the engine driven
welder and Power Feed ® systems. Most are designed to be
connected end to end for ease of extension. Generally, it is
recommended that the total length not exceed 200 ft (61 m). The
use of non-standard cables, especially in lengths greater than 25
feet, can lead to communication problems (system shutdowns),
poor motor acceleration (poor arc starting), and low wire driving
force (wire feeding problems). Always use the shortest length of
control cable possible, and DO NOT coil excess cable.
Regarding cable placement, best results will be obtained when
control cables are routed separate from the weld cables. This
minimizes the possibility of interference between the high currents
owing through the weld cables, and the low level signals in the
control cables.
Connection Between Vantage
ArcLink Compatible Wire Feeders
®
The 5-pin ArcLink ® control cable connects the Vantage
LE500X to the wire feeder. The control cable consists of two
power leads, one twisted pair for digital communication, and one
lead for voltage sensing. The 5-pin ArcLink
Vantage 441X/LE500X is located on control panel. The control
®
cable is keyed and polarized to prevent improper connection. Best
results will be obtained when control cables are routed separate
from the weld cables, especially in long distance applications. The
recommended combined length of the ArcLink
network should not exceed 200 ft (61 m).
CROSSLINC TECHNOLOGY
This machine features CrossLinc technology, which allows for
remote control of the welding output via the weld cables rather
than a control cable. As result, the control cable is no longer
needed when connected to a CrossLinc compatible wire feeder or
remote control.
This machine will function with all CrossLinc compatible wire
feeders except for the oldest LN-25X models. Incompatible models
include:
Code # 12432
Code # 12504
A-9
INSTALLATION
441X/LE500X and
®
® 441X/
connection on the
®
® control cable