INSTALLATION |
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 applications do not necessarily dictate the use of remote work voltage sense leads, but they are strong- ly recommended.
If Sense Leads ARE NOT Used:
•Avoid common current paths. Current from adja- cent arcs can induce voltage into each others cur- rent paths that can be misinterpreted by the power sources, and result in arc interference.
If Sense Leads ARE Used:
•Position the sense leads out of the path of the weld current. Especially any current paths common to adjacent 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.
•For longitudinal applications, connect all work leads at one end of the weldment, and all of the work volt- age sense leads at the opposite end of the weld- ment. Perform welding in the direction away from the work leads and toward the sense leads.
(See Figure A.7)
FIGURE A.7
DIRECTION
OF TRAVEL
CONNECT ALL SENSE LEADS AT THE END OF THE WELD.
CONNECT ALL WORK LEADS AT THE BEGINNING OF THE WELD.
POWER WAVE® S350