Lincoln Electric IM10062 FLEXTEC 450 - Manual (Page 10)

A-4 INSTALLATION A-4
ELECTRIC SHOCK can kill.
ONLY A QUALIFIED ELECTRICIAN
SHOULD CONNECT THE INPUT
LEADS TO THE FLEXTEC™ 450.
CONNECTIONS SHOULD BE MADE IN ACCOR-
DANCE WITH ALL LOCAL AND NATIONAL
ELECTRICAL CODES AND THE CONNECTION
DIAGRAM LOCATED ON THE INSIDE OF THE
RECONNECT/INPUT ACCESS DOOR OF THE
MACHINE. FAILURE TO DO SO MAY RESULT
IN BODILY INJURY OR DEATH.
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WARNING
INPUT CONNECTION
(See Figure A.1)
For codes 11941 and below
Use a three-phase supply line. A 1.40 inch (36 mm)
diameter access hole for the input supply is located on
the case back. Connect L1, L2, L3 and ground
according to the Input Supply Connection Diagram
decal located on the internal horizontal panel.
To access the reconnect/input supply connection
blocks, remove the 8 screws that secure the case top
of the welder and remove the case top.
FLEXTEC™ 450
RECONNECT TERMINAL BLOCK
• Reconnects auxiliary transformers
for the proper input voltages POWER SUPPLY TERMINAL BLOCK
• Line Cord/Cable attaches here.
• A ground terminal marked with the symbol shown
is provided separate from this block for connecting the ground
lead of the line cord. (See your local and national electrical
codes for proper grounding methods.)
POWER SUPPLY ACCESS HOLE
• Route input power cable through this hole.
RECONNECT TERMINAL BLOCK
FIGURE A.1
INPUT VOLTAGE SELECTION
For codes 11941 and below
Welders are shipped connected for 460 Volt input
voltage. To move this connection to a different input
voltage, see the diagram located on the inside panel
in the reconnect/input connection area, illustrated in
Figure A.1. If the Auxiliary lead (indicated as ʻAʼ) is
placed in the wrong position and power is applied to
the machine, the machine will protect itself and dis-
play an error message:
• "Err" "713" or “714” will be shown on the display.
• The control board and switch boards will blink out
error "713" or “714” on their status leds.
• The weld output will be turned off and the control
board will force itself into an idle state.
• The machine will need to have the misconnect con-
dition removed before it will recover.