Parallel Operations - Red-D-Arc EX350ie Operator's Manual

A-4 A-4
INSTALLATION
PARALLEL OPERATION
The EX350ie (CE) are operable in parallel in CC
mode. For best results, the currents of each machine
should be reasonably well shared. As an example,
with two machines set up in parallel for a 400 amp
procedure, each machine should be set to deliver
approximately 200 amps, not 300 amps from one and
100 amps from the other. This will minimize nuisance
shutdown conditions. In general, more than two
machines in parallel will not be effective due to the
voltage requirements of procedures in that power
range.
To set machine outputs, start with output control pots
and arc control pots in identical positions. Use the
output control pots to balance the currents and main-
tain the desired current. The arc control pots should
be kept identical on the two machines.
EX350ie (CE) (RED-D-ARC)