Vertiv | Liebert
®
NXL
™
500-750kVA UPS Installation Manual |
15
2.4.2 Multi-Module Communication
Paralleling cables that connect the module to the system are connected to terminals P3101 and
P3103 on the Inter-Module Communication (IMC) board (refer to
Table 4
UPS control contacts to remote status panel
Item
Terminal
Block
Pin
Connects to
(Description of External Item)
Wire Size/
Max Length
CAN Bus and 24V
Power Supply
TB0829
1
Remote Status Panel TB-2
18AWG/1000ft.
(300m)
2
Remote Status Panel TB-1
3
Remote Status Panel TB-3
4
Remote Status Panel TB-4
Table 5
Parallel from UPS module Inter-Module Communication Board to other Inter-Module
Communication Board in system
Terminal Designation
Signal Name
Wire Size/
Max Length
From
To
Primary Connections
P3101-1
P3101-1
Share CAN +24V
1000ft.
(300m)
P3101-2
P3101-2
Share CAN common
P3101-3
P3101-3
System CAN +24V
P3101-4
P3101-4
System CAN common
P3101-5
P3101-5
SER synch CAN+24V
P3101-6
P3101-6
SER synch CAN common
P3101-7
P3101-7
Ground - Drain Wire
P3101-14
P3101-14
Ground
P3101-8
P3101-8
PWM synch CAN +24V
P3101-9
P3101-9
PWM synch CAN common
P3101-10
P3101-10
MMS synch CAN +24V
P3101-11
P3101-11
MMS synch CAN common
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