INPUT VOLTAGE SETUP
CAUTION
DO NOT ATTEMPT TO POWER THIS UNIT FROM THE AUXILIARY POWER SUPPLY OF AN ENGINE WELDER.
•Special protection circuits may operate, causing loss of output.
•The supply from engine welders often has exces- sive voltage peaks because the voltage waveform is usually triangular shaped instead of sinusoidal.
•If voltage peaks from the engine welder exceed 380V, the input circuits of this machine protecting the filter capacitors, FETS and other components
from damage will not be energized .
Recommended Fuse Sizes Based On The U.S.
National Electrical Code And Maximum
Machine Outputs
| Input Volts(1) | Fuse Size in Amps |
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3 phase | 208 | 60 |
50/60 Hz | 230 | 60 |
| 460 | 40 |
1 phase | 208(2) | 85 |
50/60 Hz | 230(2) | 80 |
| 460 | 50 |
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3 phase | 575 | 30 |
60 Hz |
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(1)Input voltage must be within ±10% of rated value.
(2)When operating on these inputs, at outputs exceeding 200A/60% or 165A/100%, the input line cord should be changed to an input conductor of 6 AWG or larger.
RECONNECT PROCEDURE
1.BE SURE POWER SWITCH IS OFF.
2.CONNECT LEAD ’A’ TO DESIRED INPUT VOLTAGE RANGE.
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.Disconnect input power before inspecting or servicing machine.
.Do not operate with wraparound removed.
.Do not touch electrically live parts.
. Only qualified persons should install, 
use or service this equipment.
IF MACHINE CEASES TO OPERATE (NO METER, NO FAN) AND THERE IS NO OTHER KNOWN FAILURE: CHECK FUSE; REPLACE WITH A 3 AMP SLOW BLOW ONLY.
CONNECTION OF WIRE FEEDERS TO THE INVERTEC
(Note: IEC units do not have 110 VAC auxiliary power).
LN-25 Connection Instructions
3. POSITION SWITCH TO DESIRED INPUT VOLTAGE RANGE. |
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THE LINCOLN ELECTRIC CO. CLEVELAND, OHIO U.S.A. | 9 - 11 - 92 |
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POWER CORD CONNECTION
A 10 ft. (3.0m) power cord is provided and wired into the machine. Follow the power cord connection instructions. Incorrect connection may result in equip- ment damage.
BLACK
GREEN
RED
WHITE
Single Phase Input
1.Connect green lead to ground per U.S. National Electrical Code.
2.Connect black and white leads to power.
3.Wrap red lead with tape to provide 600V insula- tion.
Three Phase Input
1.Connect green lead to ground per U.S. National Electrical Code.
2.Connect black, red and white leads to power.
Install in accordance with all local and national electric codes.
1.Turn the Invertec power switch “off”.
2.Connect the electrode cable to the output terminal of polarity required by electrode. Connect the work lead to the other terminal.
3.
4.Place the
LN-7 Connection Instructions
1.Turn the Invertec power switch “off”.
2.Connect the K480 control cable from the
3.Connect the electrode cable to the output terminal of polarity required by electrode. Connect the work lead to the other terminal.
4.Place the
– 8 – | – |