Lincoln Electric IM318 IDEALARC DC1500 - Manual (Page 8)

A-1 INSTALLATION
IDEALARC ® DC-1500
A-1
LOCATION
Install the welder in a dry location where there is free cir-cula-
tion of air in through the louvers in the front and out through
the louvers in the back of the case. A location which minimizes
the amount of smoke and dirt drawn into the machine
reduces the chance of dirt accumulation that can block air
passages and cause overheating.
INPUT WIRING
Failure to fuse the input lines per the specifications
in this manual will constitute customer abuse and
void the warranty.
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Be sure the voltage, phase and frequency of the input power is
as specified on the welder nameplate.
Have a qualified electrician remove the lower right side case
panel and connect 3 phase AC power to terminals L
1
, L
2
and
L
3
of the input contactor in accordance with the Na-tional
Electrical Code, all local codes and the wiring diagram located
inside the machine.
The frame of the welder must be grounded. A stud marked
with the symbol located on the fan shroud is provided for
this purpose. See the U.S. National Electrical Code for
details on proper grounding methods.
Recommended Input Wire, Grounding Wire and
Fuse Sizes
Based on National Electrical Code For 60 Hertz,
3 Phase Welders at 100% Duty Cycle
NOTE: The standard machines are designed to oper-
ate on 460 volt-60 Hertz, 440 volt-50 Hertz and 380
volt-50 Hertz input power systems. However, to use
the machines on 380 volt-50 Hertz power, reconnect
the transformer input leads in accordance with the
connection diagram pasted to the inside of the lower
right side case panel.
OUTPUT CONNECTION
(Turn Power Source Off)
1. Output Studs
The “Positive” and “Negative” output studs are
located on the front panel. Two of each are provid-
ed to simplify connecting multiple electrode or
work cables as suggested in the table below.
Connect the electrode cables to the “Positive”
studs for electrode positive (DC+) polarity or to
the “Negative” stud for electrode negative (DC-)
polarity as required by the welding procedures.
Connect the work cables to the other set of studs.
Tighten the nuts with a wrench.
2. Auxiliary Power
This machine supplies the 1000 volt-amperes of
115 volt, AC power needed for the automatic wire
feeders. The power is available from terminals
#31 and #32 on the terminal strip.
3. “NL Option” (K783)
Installation of an NL option is required when con-
necting a DC-1500 to LAF-3, NA-2, LT-3 or LT-34
wire feeding systems. See the section on page 9
entitled “NL Option Kit” for full information.
4. Wire Feeder Connection — Without NL Option
Turn the welder off. Remove the screw and lift the
hinged door on the front of the control panel to
expose the terminal strips. Connect the leads of
the wire feeder input control cable to the terminal
strip exactly as spec-ified in the appropriate con-
nection diagram included in the wire feeder
Operating Manual. Attach the control cable to the
panel at the right of the terminal strip using the
clamp attached to the control cable. Close the
door and replace the screw.
To connect the DC-1500 to wire feeders not cov-
ered in available connection diagrams, write to
the factory for instructions giving complete name-
plate information for the DC-1500 and wire feed-
er.
Copper Wire Size
Type 75° In Conduit
Input Amps 3 Input Grounding Super Lag Fuse
Volts Input Wires Conductor Size in Amps
460 184 000 3 300
Suggested Copper Cable Sizes — 80% Duty Cycle
Below 1000 amps Two 4/0
1000 to 1200 amps Three 4/0
Up to
1200 to 1500 amps Four 4/0
200’
WARNING
FALLING
EQUIPMENT can
cause injury.
• Do not lift this machine using lift
bale if it is equipped with a
heavy accessory such as a trailer
or gas cylinder.
• Lift only with equipment of
adequate lifting capacity.
• Be sure machine is stable when
lifting.
WARNING
ELECTRIC SHOCK
can kill.
• Have an electrician install and
service this equipment.
• Turn the input power off at the
fuse box before working on
equipment.
• Do not touch electrically hot
parts.