Eaton 93PM UPS - Figure 4-21. External Parallel CAN Wiring; Figure 4-22. External Parallel Terminal Block

UPS System Installation
4-26 Eaton 93PM UPS (20–50 kW, 480V Four Wire – 50 kW Frame) Installation and Operation Manual P-164000540—Rev 4 www.eaton.com/powerquality
Figure 4-21. External Parallel CAN Wiring
Figure 4-22. External Parallel Terminal Block
1
2
3
4
5
6
7
8
9
10
UPS 1
External
Parallel
TB
1
2
3
4
5
6
7
8
9
10
UPS 4
(If Installed)
External
Parallel
TB
1
2
3
4
5
6
7
8
9
10
UPS 2
External
Parallel
TB
1
2
3
4
5
6
7
8
9
10
UPS 3
(If Installed)
External
Parallel
TB
Shielded Twisted Pair
with Drain Line
Shielded Twisted Pair
with Drain Line
Shielded Twisted Pair
with Drain Line
Parallel
CAN Out
Parallel
CAN Out
Parallel
CAN Out
Parallel
CAN In
Parallel
CAN In
Parallel
CAN In
Termination
121 Ohm
Resistor
Termination
121 Ohm
Resistor
NOTE 1 External parallel CAN connections between UPS cabinets require shielded twisted pair wire with drain wire.
NOTE 2 Terminations are 121 ohm 1% resistors installed in the terminal block in the first and last UPS.
UPS
External
Parallel TB
Ground_S
Pull Chain
CAN L In
CAN H In
CAN L Out
CAN H Out
Earth
Ground (ISP)
Earth
Ground (ISP)
10
1