Toshiba 4400 Series, Installation And Operation Manual

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36 4400 Series Installation and Operation Manual – 64527-008
TABLE 8.5: 50KVA UPS COMPONENT LOCATION AND
IDENTIFICATION (CONT.)
No. Description
13 PCB 4 – Charger Board
14 PCB 1 – Control Board
15 PCB 5 – Bypass Driver Board
16 AC Output Fuses
17 PCB 2 – Converter Board
18 PCB 3 – Inverter Board
19 AC Input Fuses
20 (This Number Not Used)
21 DC Capacitor Bank
22 DC Power supply for PCB-9A (Display Control
Board)
23 Primary Input Contactor
24 AC Input EMI Filter
25 AC Output EMI Filter
26 TB1 with Primary Input, Output, and Backup DC
Supply Box Lugs
27 (Optional) TB4 with Secondary Input Power
Box Lugs
28 TB3 – Terminals for Battery Cabinet Breaker
Shunt Trip and Aux.
29 Ground Bus
30 Shunt Trip DC Power Supply
31 Bottom Cable Access Port
32 Side Cable Access Ports
33 Top Cable Access Port
13
14 15
16
18
19
17
21
25
25
28 29 27 26
30
31
32
22
24
32
33
23