Voltage Sensing Considerations For Multiple Arc Systems - Lincoln Electric POWER WAVE S350 Service Manual

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VOLTAGE SENSING CONSIDERATIONS
FOR MULTIPLE ARC SYSTEMS
Special care must be taken when more than one arc is
welding simultaneously on a single part. Multiple arc ap-
plications do not necessarily dictate the use of remote
work voltage sense leads, but they are strongly recom-
mended.
If Sense Leads ARE NOT Used:
• Avoid common current paths. Current from adjacent
arcs can induce voltage into each others current
paths that can be misinterpreted by the power
sources, and result in arc interference.
INSTALLATION
If Sense Leads ARE Used:
• Position the sense leads out of the path of the weld
• For longitudinal applications, connect all work leads
(See Figure A.7)
FIGURE A.7
DIRECTION
OF TRAVEL
CONNECT ALL
WORK LEADS AT
THE BEGINNING
OF THE WELD.
POWER WAVE ® S350
current. Especially any current paths common to ad-
jacent arcs. Current from adjacent arcs can induce
voltage into each others current paths that can be
misinterpreted by the power sources, and result in
arc interference.
at one end of the weldment, and all of the work volt-
age sense leads at the opposite end of the weldment.
Perform welding in the direction away from the work
leads and toward the sense leads.
CONNECT ALL SENSE
LEADS AT THE END
OF THE WELD.
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