© ESAB AB 2010
-22-
bp12a1
Connections for parallel installation of two EPP-360 power sources with both power
sources in operation:
EPP-360 EPP-360
Supplemental power source Primary power source
work electrode work electrode
(+) (-) (+) pilot arc (-)
Control
cable to
water cooler
P/S parallel control cable
CNC control
cable
2-4/0 600 V
positive leads
to workpiece
1 - 14 AWG 600V
lead to pilot arc connection in
arc starter
box (h.f. generator)
2 - 4/0 600V
negative leads
in arc starter box
(h.f. generator)
The EPP-360 does not have an ON/OFF switch. The main power is controlled
through the line (wall) disconnect switch.
DO NOT OPERATE THE EPP-360 WITH COVERS REMOVED.
HIGH VOLTAGE COMPONENTS ARE EXPOSED INCREASING
SHOCK HAZARD. INTERNAL COMPONENTS MAY BE DAMAGED
BECAUSE COOLING FANS WILL LOSE EFFICIENCY.
ELECTRIC SHOCK CAN KILL!
EXPOSED ELECTRICAL CONDUCTORS CAN BE HAZARDOUS!
DO NOT LEAVE ELECTRICALLY “HOT” CONDUCTORS
EXPOSED. WHEN DISCONNECTING THE SUPPLEMENTAL
POWER SOURCE FROM THE PRIMARY, VERIFY THAT THE
CORRECT CABLES WERE DISCONNECTED. INSULATE THE
DISCONNECTED ENDS.
WHEN TWO POWER SOURCES ARE CONNECTED IN
PARALLELL AND ONE OF THE TWO IS NOT POWERED, OR IF
THE PARALLELING CABLE DOES NOT CONNECT THE TWO,
THE NEGATIVE ELECTRODE CONDUCTOR MUST BE
DISCONNECTED FROM THE SUPPLEMENTAL POWER SOURCE
AND THE PLUMBING BOX. FAILURE TO DO THIS WILL LEAVE
THE SUPPLEMENTAL ELECTRICALLY “HOT”.
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