General Description; Recommended Processes And Equipment - Lincoln Electric IDEALARC DC-600 Service Manual

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GENERAL DESCRIPTION

The IDEALARC DC-600 is an SCR controlled three
phase welding and cutting power source. It uses a sin-
gle range potentiometer to control:
• Submerged Arc Semi-Automatic or Automatic
Welding
• Open Arc Semi-Automatic or Automatic Welding
• Stick Welding (Standard on All Machines)
• Air/Carbon Arc Cutting (Carbon Rod Sizes up to
3/8" Diameter)
The IDEALARC DC-600 has a three-position Welding
Mode Switch to enable the user to operate in one of
three modes:
• Constant Voltage (CV) Innershield
• Constant Voltage (CV) Submerged Arc
• Variable Voltage (VV - Constant Current)
Submerged Arc
The IDEALARC DC-600 can be easily connected to
wire feeding equipment, including:
• Semi-automatic wire feeders LN-7, LN-8, and
LN-9
• Automatic wire feeders NA-3 and NA-5
• Tractors LT-56 and LT-7
The optional Multi-Process Switch allows the user to
switch between semi-automatic or automatic welding
and stick welding or air/carbon arc cutting without dis-
connecting the wire feeder equipment control, elec-
trode, and work leads.
RECOMMENDED PROCESSES AND
EQUIPMENT
The IDEALARC DC-600 is recommended for the fol-
lowing welding or cutting processes within its output
capacity of 70 amps to 850 amps in the Constant
Voltage mode and 90 amps to 850 amps in the
Variable Voltage (Constant Current) mode:
• Submerged Arc Semi-Automatic or Automatic
Welding
• Open Arc Semi-Automatic or Automatic Welding
• Stick Welding (Standard on All Machines)
• Air/Carbon Arc Cutting (Carbon Rod Sizes up to
3/8" Diameter)
OPERATION
OPERATIONAL FEATURES AND
CONTROLS
The IDEALARC DC-600 comes with the following
standard controls:
• ON/OFF PUSH BUTTON
• OUTPUT CONTROL POTENTIOMETER
• OUTPUT CONTROL SWITCH (Remote or
Machine Control)
• WELDING MODE SWITCH
• CONTROL CIRCUIT POLARITY SWITCH
• POWER SOURCE PILOT LIGHT
• DC AMMETER (OPTIONAL)
• DC VOLTMETER (OPTIONAL)
DESIGN FEATURES AND
ADVANTAGES
The following list of design features will help you
understand the machine's total capabilities and how
you can take advantage of them to get maximum use
of your machine.
• Excellent arc characteristics for optimum constant
voltage submerged arc and Innershield welding
performance.
• A control circuit designed to provide good starting
for a large variety of processes and procedures.
• Output Control Potentiometer that provides easy
single range continuous control.
• Output Control Switch that provides simple switch-
ing from local to remote control.
• Red neon pilot light to confirm that the Input
Contactor is energized.
IDEALARC ® DC-600
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