Miller Subarc DC 1000 소유자 매뉴얼 - 페이지 24
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3-2. Using Multiple Units: DC Lead Arc, One or More AC Trailing Arcs
With Separate Electrodes
Y ELECTRIC SHOCK can kill.
Do not touch live electrical parts.
Turn off welding power sources and disconnect input power before making any weld output con-
nections.
See ANSI Z49.1 and OSHA Title 29, Chapter XVII, Part 1910, Subpart Q (addresses at begin-
ning of manual).
Do not handle or come in contact with two live electrodes at the same time.
Y UNDERSIZED WELD CABLES can cause fire.
Work cable or electrode cable must be able to carry the weld output of the individual welding power
source (see Section 2-8).
Securely cover common connections with proper insulating material as shown in detail below.
Do not exceed duty cycle of welding power sources.
DC Output Unit
Connections
Y High weld output current hazard! Remove all metal jewelry, such as rings
OM-2221 Page 20
Y If there are any questions regarding
this procedure, contact the factory be-
fore connecting units.
To
DC Output Elec-
trode #1
First AC Output Unit
Connections
To Work
and watches, and be careful with tools near output terminals. High cur-
rent can cause severe burns from hot metal if touched to output terminals
and unit is On. ALWAYS turn Off welding power sources and disconnect
input power BEFORE making weld output connections.
To AC
Output
Electrode #2
Second AC Output Unit
(And Following Units)
Connections
To Work
Shielded Cable To
Terminal Strip TE4
Y Turn Off welding power
source and disconnect input
power before opening ac-
cess door.
To use a dc electrode positive lead
arc with one or more trailing ac arcs,
make connections as shown.
When running more than one ac
trailing arc, set up the ac units ac-
cording to Section 3-6 or 3-7, as ap-
plicable.
Y When using multiple arcs in
parallel, be sure to follow
unit setup instructions care-
fully. Severe damage to units
may occur if units are not
correctly connected for par-
allel operation.
To AC
Output
Electrode #3
To Next AC
Unit
To Work
ST-801 882-A