4-13
Figure 4-12. Parallel UPS system connections
Figure 4-11. Parallel UPS Control Wiring
1A
1C
1B
1C
2A
2C
2B
2C
3B
3C
4B
4C
3A
3C
4A
4C
UPS 1
UPS 1
UPS 2
UPS 2
UPS 3
UPS 3
UPS 4
UPS 4
Outputs from
UPSs
Outputs from
UPSs
Bypass inputs
to UPSs
REC inputs
to UPSs
Battery
Battery
Battery
Battery
Battery
Battery
Battery
Battery
UPS 1
UPS 2
UPS 3
UPS 4
IN
OUT
IN
OUT
IN
OUT
IN
OUT
CAN BUS
CAN BUS
CAN BUS
CAN BUS
CN3
CN6
CN3
CN6
CN3
CN6
CN3
CN6
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
RJ-45 CABLE
RJ-45 CABLE
RJ-45 CABLE
TERMINATING
JUMPER
TERMINATING
JUMPER
BUILDING
ALARM CN9
BUILDING
ALARM CN9
BUILDING
ALARM CN9
BUILDING
ALARM CN9
PULLCHAIN
CN4
PULLCHAIN
CN4
PULLCHAIN
CN4
PULLCHAIN
CN4
NO
NC
COM
NO
NC
COM
NO
NC
COM
NO
NC
COM
NO
NC
COM
NO
NC
COM
NO
NC
COM
NO
NC
COM
M
O
B
1
M
O
B
2
M
O
B
3
M
O
B
4
TIE CABINET
CUSTOMER
TERMINAL
BLOCK
CONNECTIONS
3
2
4
25
9
8
10
26
15 14
16
27
21 20
22
28
1
6
5
7
12
11
13
18
17
19
24
23
TWISTED
PAIRS
Summary of Contents for VFI 20000-40000TAP 3/3 BI
Page 2: ......
Page 4: ......
Page 8: ...iv This page intentionally left blank...
Page 10: ...vi This page intentionally left blank...
Page 12: ...viii This page intentionally left blank...
Page 18: ...1 6 This page intentionally left blank...
Page 21: ...Section 1 Installation...
Page 22: ......
Page 46: ...This page intentionally left blank 3 24...
Page 64: ...4 18 Notes...
Page 65: ...Section 2 Operation...
Page 66: ......