Lincoln Electric IM10132 FLEXTEC 650 - Manual (Page 10)

A-4 INSTALLATION A-4
INPUT FUSE AND SUPPLY WIRE
CONSIDERATIONS
Refer to Specification in this Installation Section for
recommended fuse, wire sizes and type of the copper
wires. Fuse the input circuit with the recommended
super lag fuse or delay type breakers (also called
"inverse time" or "thermal/magnetic" circuit breakers).
Choose input and grounding wire size according to
local or national electrical codes. Using input wire
sizes, fuses or circuit breakers smaller than recom-
mended may result in "nuisance" shut-offs from
welder inrush currents, even if the machine is not
being used at high currents.
INPUT VOLTAGE SELECTION
Welders are shipped connected for 460 Volt input
voltage. To move this connection to a different input
voltage, see Figure A.1 which is illustrated below.
Refer to Auxiliary Reconnect Input Ranges table in
the Technical Specification Section. 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 display 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
condition removed before it will recover. Power
must be removed prior to changing reconnect posi-
tion.
ELECTRIC SHOCK can kill.
ONLY A QUALIFIED ELECTRICIAN
SHOULD CONNECT THE INPUT
LEADS TO THE FLEXTEC™ 650.
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.
----------------------------------------------------------------------
WARNING
INPUT CONNECTION
(See Figure A.1)
Use a three-phase supply line. A 1.75 inch (45 mm)
diameter access hole for the input supply is located on
the case back. Remove the reconnect access panel
located on the case back and connect W, V, U and
ground according to the Input Supply Connection
Diagram decal.
FLEXTEC™ 650
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.
• Strain relief required. See your local and
National Electrical codes for proper strain relief.
REMOVE FOUR SCREWS
AND ACCESS PANEL
• Reconnects auxiliary
transformer for the
proper input voltage.
RECONNECT TERMINAL BLOCK
FIGURE A.1