ESAB ESP-50, Instruction Manual

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7
T1-X
TB
T1-X
X1
+
FROM MAIN TRANS-
FORMER
~
~
~ OUTPUT BRIDGE
(D1)
figure 3.4.B
3.7 CoNNECTINg ESP-50 for 200(208) VaC INPuT
The ESP-50 power source with 00/0 vac, single-phase input capability is factory
set for 0 vac input. If using 00(08) vac input, the ESP-50 must be reconnected
as follows before connecting to your input power:
1. Remove the cover from the ESP-50 power source.
. Locate the Input Bridge (IBR) and TB5 terminal block (see Figure .4.A) on the
left side towards the rear panel. Disconnect the gray lead from TB5- and then
connect it to TB5-1.
. Locate the output bridge (D1) on left side towards the front panel (see Figure
.4.B). Disconnect and swap leads X and X from the main transformer. For
00(08) vac input, X is connected to TB and X is connected to terminal
of D1. Make sure the connections are firmly tightened.
4. Leave all other wires the same.
5. Reinstall the cover and connect the ESP-50 to 08 vac input power.
R
R
S G
T
+
(IBR)
INPUT
BRIDGE
08
VAC
GRY
figure 3.4.a
figure 3-4. original factory Setup for 230 Vac Input on
Power Source with 200/230 Vac Input Power Capability
1
2
3
ElECTrIC SHoCK CaN KIll! Pre-
cautionary measures should be
taken to provide maximum pro-
tection against electrical shock.
Be sure that all power is off by
opening the line (wall) discon-
nect switch and by unplugging
the power cord to the unit when
primary electrical connections
are made to the power supply.
WarNINg
Note: factory set for 230 VaC input.
for 208VaC move grY wire from TB5-2 to TB5-1, move T1-x2 to TB3 and T1-x3 to D1-3
BLK
TB5
BLK
0
VAC
08
VA
C
INPUT
0 VAC
INPUT
GRY
SECTIoN 3 INSTallaTIoN