Connection Diagram - Lincoln Electric power wave ac/dc 1000 sd Operator's Manual

A-4
INPUT AND GROUND CONNECTIONS
MACHINE GROUNDING
The frame of the welder must be grounded. A ground
terminal marked with the symbol shown is located
inside the reconnect / input access door for this
purpose. See your local and national electrical codes
for proper grounding methods.
INPUT CONNECTION
WARNING
ELECTRIC SHOCK can kill.
• Only a qualified electrician should
connect the input leads to the
Power
should be made in accordance
with all local and National
Electrical
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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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. Connect L1, L2, L3 and ground
according to the Input Supply Connection Diagram.
FIGURE A.2 - INPUT SUPPLY CONNECTION FOR K2803-1 POWER WAVE
INPUT SUPPLY CONNECTION DIAGRAM
WARNING
ELECTRIC
SHOCK
CAN KILL
VOLTAGE=380-415V
380-415V
440-460V
500V
550-575V
INSTALLATION
Wave . Connections
®
Codes and the
Do not operate with covers removed
Disconnect input power before servicing
Do not touch electrically live parts
Only qualified persons should install,
use or service this equipment
VOLTAGE=440-460V
380-415V
440-460V
'A' 'A'
500V
550-575V
POWER WAVE
INPUT FUSE AND SUPPLY WIRE
CONSIDERATIONS
Refer to Specifications page for recommended fuse and
wire sizes. 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 fuses or circuit breakers smaller than
recommended 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 the highest input voltage
listed on the rating plate. To move this connection to a
different input voltage, see the diagram located on the inside
of the input access door, or the diagram shown below
(Figure A.2). If the Auxiliary lead (indicated as ʻAʼ) is placed
in the wrong position, there are two possible results.
a. If the lead is placed in a position higher than the applied
line voltage, the welder may not come on at all.
b. If the Auxiliary lead is placed in a position lower than the
applied line voltage, the welder may not come on, and
fuse in the reconnect area may open. If this occurs, turn
off the input voltage, properly connect the auxiliary
lead, replace the fuse, and try again.
W / L3
V / L2
CR1
U / L1
VOLTAGE=500V
380-415V
440-460V
'A'
500V
550-575V
® AC/DC 1000 ® SD
® AC/DC 1000 ® SD
VOLTAGE=550-575V
380-415V
440-460V
'A'
500V
550-575V
A-4