Eaton 93PR - 3.3.2. UPS System Interface Wiring Preparation

Eaton 93PR 500 kW UPS
User's and Installation Guide 43
UPS1 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
1212 12 12 12 12 12 12 12
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
16
5
712
11
13 18
17
19 24
23
TWISTED
PAIRS
UPS paralleling wiring diagram – with parallel tie cabinet
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
12
12 12 12
RJ-45 CABLE RJ-45 CABLE RJ-45 CABLE
TERMINATING
JUMPER
TERMINATING
JUMPER
PULLCHAIN
CN4
PULLCHAIN
CN4
PULLCHAIN
CN4
PULLCHAIN
CN4
•
•
•
•
•
•
•
•
•
•
•
•
•
UPS paralleling wiring diagram – without parallel tie cabinet
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
Parallel UPS system connections
Figure 4-5: Principle of Paralleled UPS Systems