8
FROM MAIN TRANS-
FORMER
3.8
CoNNECTINg ESP-50 for 400/460 VaC INPuT
The ESP-50 power source with 400/460 vac, -phase input capability is factory set
for 460 vac input. If using 400 vac input, the ESP-50 must be reconnected as follows
before connecting to your input power:
1. Remove cover from the ESP-50 power source.
. Locate the Input Bridge (IBR) and TB5 terminal block (see Figure .5.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
.5.B). Disconnect and swap leads X and X from the main transformer. For
400 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 cover and connect the ESP-50 to 400 vac input power.
figure 3-5. original factory Setup for 460 Vac Input on
Power Source with 400/460 Vac Input Power Capability
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
T1-X
TB
T1-X
X1
+
~
~
~
OUTPUT BRIDGE
(D1)
figure 3.5.B
R
R
S G
T
+
(IBR)
INPUT
BRIDGE
400
VAC
figure 3.5.a
1
2
3
TB5
460
VAC
400
VA
C
INPUT
460 VAC
INPUT
GRY
BLU
WHT
SECTIoN 3
INSTallaTIoN
Содержание ESP-50
Страница 4: ...TABLE OF CONTENTS...
Страница 32: ...32 section 4 operation...
Страница 53: ...53 section 7 replacement parts...
Страница 54: ...54 notes...
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