Power Supply (Bpsu672F) Removal; Power Supply Replacement - Toshiba strata CT Installation & Maintenance Manual

Strata CT Installation

Power Supply (BPSU672F) Removal

1.
2.
3.
4.

Power Supply Replacement

➤
H
C
Figure 2-2 Power Supply Installation
2-8
Remove the front and right side covers
side covers of other cabinets as needed to disconnect wiring.
Turn the power supply Off, and disconnect the AC power cord, all ground wiring and
reserve power cabling that is connected to the power supply.
Disconnect the back plane DC OUT cable plug from the DC OUT connector.
Loosen the four mounting screws securing the power supply to the cabinet and remove
the power supply.
Install the replacement power supply per
Cabinet Support Post
B101 B102 S101 S102 S103
24V Circuit Breaker Assignments:
Base Cabinet
24V-1 S101, S102 24V-1
24V-2 S103, S104 24V-2
24V-3 S105, S106 24V-3
24V-4 S107, S108 24V-4
Power Factor (PF) alarm LED indicates
the cabinet PF was exceeded. Correct
the problem and press the RESET
button to clear the alarm.
DC Voltage Specification
+5V (+4.5 ~ +5.5), 4.0 amps
-5V (–4.5 ~ –5.5), 0.8 amps
Expansion Cabinet only
-24V (–26.3 ~ –27.8), 6.0 amps
1. Back Plane DC Voltage Plug must be plugged
into Power Supply when checking voltages.
2. On BPSU672, the BATT output is 0 volts
unless connected to good batteries.
DC Voltage Connector Plug Pin Wires
Yellow Blue White
-24 -5 +5
Yellow Yellow Yellow
-24 -24 -24
(Figure 2-4) from the cabinet. Remove the right
"Install Power Supply" on Page
Back Plane DC Voltage Connector
Back Plane DC Voltage Cable/Plug
DC OUT
-27V1
-27V2
BATT
+
-27V3
-
-27V4
POW
+5V
AC IN
-5V
P.F.
POWER
RESET
ON
EXP
BASE
OFF
FG
S104 S105 S106 S107 S108
Wire Clamp
Green/Green yellow wire
fastened with FG Screw
Mounting Holes
EXP. Cabinet
S_01, S_02
S_03, S_04
S_05, S_06, S_07 DC OUT
-24V1
S_08, S_09, S_10
-24V2
-24V3
-24V4
POW
+5V AC IN
-5V
P.F.
POWER
RESET
ON
EXP
BATT (Volts)
BASE
OFF
FG
+ 0
2
–
–26.3 ~ –27.8
Expansion/
Base Switch
FG Frame
Ground Screws
Green Green Green
0 0 0
Green Green Green
0 0 0
2-6.
5039
DC Voltage
Connector Jack
Battery Cable
Connector
BATT
+
-
AC Power
Cord Jack
Red
+5
Red
+5
Strata CT I&M Manual October 2000