MODE SELECTOR AND OUTPUT
CONTROLS
In CC mode, machine output is at open circuit voltage.
The OUTPUT control presets amps in the 30 to 350 A
range and then adjusts actual welding current to match
the preset when welding. In CV mode, machine output
is at the voltage level set at the OUTPUT control. The
OUTPUT control presets volts, then adjusts the actual
arc voltage to match the preset when welding.
A HOT START control is provided to enhance arc start-
ing with an adjustable output “boost” in either CC or CV
mode. The ARC FORCE control (CC mode only) pro-
vides extra weld current to prevent electrode “stubbing”
An additional CC SLOPE switch improves “fast-freeze”
stick electrode performance during vertical pipe weld-
ing when set to the PIPE position.
E-5 E-5
THEORY OF OPERATION
MULTI-WELD 350
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NOTE: Unshaded areas of Block Logic Diagram are the subject of discussion.
