Lincoln Electric INVERTEC IM526-B - Manual (Page 11)

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OPERATING INSTRUCTIONS
DUTY CYCLE
The Invertec is rated at 300 amps, 60% duty cycle for
3 phase inputs (based on a 10 minute cycle). It is also
rated at 250 amps, 100% duty cycle.
CONTROL FUNCTION / OPERATION
Power Switch - Place the lever in the “ON” position to
energize the machine. When the power is on, the digi-
tal meter will activate and the fan will operate.
ELECTRIC SHOCK can kill.
• Do not touch electrically live parts or
electrode with skin or wet clothing.
• Insulate yourself from work and
ground.
• Always wear dry insulating gloves.
------------------------------------------------------------------------
FUMES AND GASES can be danger-
ous.
• Keep your head out of fumes.
• Use ventilation or exhaust to remove
fumes from breathing zone.
------------------------------------------------------------------------
WELDING SPARKS can cause fire or
explosion.
• Keep flammable material away.
• Do not weld on closed containers.
------------------------------------------------------------------------
ARC RAYS can burn eyes and skin.
• Wear eye, ear and body
protection.
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See additional warning information at
front of this operator’s manual.
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WARNING
Output Control - This controls the output voltage in
the CV modes and output current in the CC modes.
Control is provided over the entire output range of the
power source with 1 turn of the control knob. This con-
trol may be adjusted while under load to change
power source output.
Local/Remote Switch - Place in the “LOCAL” posi-
tion to allow output adjustment at the machine. Place
in the “REMOTE” position to allow output adjustment
at the wire feeder or with a remote control option
package.
Digital Meter Switch - Select either “A” for amps or
“V” for volts to display welding current or voltage on
the meter.
When welding current is not present, the meter will
display the set current for the CC modes or the set
voltage for the CV modes. This set reading is an indi-
cation of machine control setting. For a more precise
process reading, read meter during actual welding.
Mode Switch
GTAW Optimized for both scratch start and Hi-
Freq kit use.
CC SOFT Best for EXX18 thru EXX28 stick elec-
trodes.
CC Crisp Use this mode for stick welding with
EXX10 thru EXX14 electrodes. Non-
welding applications such as resistive
heating or output tests with resistive
loads should be done in this mode with
Arc Force Control set to minimum.
OFF
OUTPUT
REMOTE