Input Fuse And Supply Wire Considerations; Input Voltage Change Over Procedure - Lincoln Power Wave 455 Operator's Manual

A-4
(K1761-1) FIGURE A.1 - CONNECTION DIAGRAM ON CONNECTION/INPUT ACCESS DOOR
INPUT SUPPLY CONNECTION DIAGRAM
WARNING
.
Disconnect input power before
inspecting or servicing machine.
.
Do not operate with covers
removed.
.
ELECTRIC
Do not touch electrically live parts.
SHOCK
Only qualified persons should install,
CAN KILL
use or service this equipment.
VOLTAGE=220-230V
200-208V
220-230V
380-415V
440-460V
(K1761-2) FIGURE B.1 - CONNECTION DIAGRAM ON CONNECTION/INPUT ACCESS DOOR
INPUT SUPPLY CONNECTION DIAGRAM
WARNING
Disconnect input power before
inspecting or servicing machine.
Do not operate with covers
removed.
ELECTRIC
Do not touch electrically live parts.
SHOCK
Only qualified persons should install,
use or service this equipment.
CAN KILL
VOLTAGE = 220-230V
200-208V
220-230V
440-460V
550-575V
NOTE: Turn main input power to the machine OFF before performing connection procedure. Failure to
do so will result in damage to the machine.
Connect L1, L2, L3 and ground according to the Input
Supply Connection Diagram decal located on the
inside of the input access door or refer to Figure A.1
on the following page.
INPUT FUSE AND SUPPLY WIRE
CONSIDERATIONS
Refer to the Technical Specifications at the beginning
of this Installation section for recommended fuse and
wire sizes. Fuse the input circuit with the recommend-
ed super lag fuse or delay type breakers (also called
"inverse time" or "thermal/magnetic" circuit breakers).
Choose an 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.
INSTALLATION
W / L3
V / L2
CR1
U / L1
VOLTAGE=380-415V
200-208V
220-230V
'A'
380-415V
440-460V
W / L3
V / L2
CR1
U / L1
VOLTAGE = 440-460V
200-208V
220-230V
'A'
440-460V
550-575V
INPUT VOLTAGE CHANGE OVER
(FOR MULTIPLE INPUT VOLTAGE
MACHINES ONLY)
Welders are shipped connected for the highest input
voltage listed on the rating plate. To move this con-
nection to a different input voltage, see the diagram
located on the inside of the input access door. If the
main reconnect switch or link position is placed in the
wrong position, the welder will not produce output
power.
If the Auxiliary (A) lead is placed in the wrong position,
there are two possible results. If the lead is placed in a
position higher than the applied line voltage, the
welder may not come on at all. If the Auxiliary (A) lead
is placed in a position lower than the applied line volt-
age, the welder will not come on, and the two circuit
breakers in the reconnect area will open. If this
occurs, turn off the input voltage, properly connect the
(A) lead, reset the breakers, and try again.
POWER WAVE 455/R
VOLTAGE=200-208V
200-208V
220-230V
380-415V
440-460V
VOLTAGE=440-460V
200-208V
220-230V
'A'
380-415V
440-460V
VOLTAGE = 200-208V
200-208V
220-230V
440-460V
550-575V
VOLTAGE = 550-575V
200-208V
220-230V
'A'
440-460V
550-575V
A-4
'A'
'A'
'A'
'A'