Table 2 Ups Control Contacts With Battery Cabinet Or Module Battery Disconnect; Table 3 Ups Control Contacts With Global Maintenance Bypass; Table 4 Ups Control Contacts To Remote Status Panel - Emerson Liebert NXL Installation Manual

Table 2 UPS control contacts with battery cabinet or module battery disconnect
Terminal
Item Block
CAN Bus and
24V Power TB1154A
Supply
Table 3 UPS control contacts with global maintenance bypass
Item
Maintenance
Isolation Breaker
1
(MIB) Form C
Maintenance Bypass
1
Breaker (MBB) Form C
Maintenance Bypass
1
Enable Form C
1
Remote EPO Input
Key Status Input
1, 3
Form C
Module Output Breaker
2
(MOB) Form C
1. For 1+N systems with a maintenance Bypass, these auxiliary contacts must be run to each module from an isolated source.
2. For 1+N systems, these breaker Aux contacts go to the UPS that they are associated with.
3. Key Status Input can be either Form-C, N.O. or N.C. contact
Table 4 UPS control contacts to remote status panel
Terminal
Item Block
CAN Bus and 24V
TB0829
Power Supply
Connects to
Pin (Description of External Item)
1 Battery Interface Board TB1154-1
2 Battery Interface Board TB1154-2
3 Battery Interface Board TB1154-3
4 Battery Interface Board TB1154-4
Terminal
Block Pin (Description of External Item)
1 CB aux. contact, closed = CB is closed
TB0811 2 CB aux. contact, common
3 CB aux. contact, closed = CB is open
1 CB aux. contact, closed = CB is closed
TB0813 2 CB aux. contact, common
3 CB aux. contact, closed = CB is open
Maintenance Bypass Cabinet,
1
closed = load not on inverter
TB0821 2 Maintenance Bypass Cabinet, common
Maintenance Bypass Cabinet,
3
closed = load on inverter
1 REPO Switch, normally open contact
TB0825
2 REPO Switch, common contact
1 Key status switch, closed = key removed
TB0820 2 Key status switch, common
3 Key status switch, closed = key inserted
1 CB aux. contact, closed = CB is closed
TB0815 2 CB aux. contact, common
3 CB aux. contact, closed = CB is open
Connects to
Pin (Description of External Item)
1 Remote Status Panel TB-2
2 Remote Status Panel TB-1
3 Remote Status Panel TB-3
4 Remote Status Panel TB-4
11
UPS Electrical Installation
Wire Size/
Max Length
Connects to
Wire Size/
Max Length
18AWG/1000ft.
(300m)
18 AWG
1000ft.
(300m)
Wire Size/
Max Length
14AWG/500ft.
(150m)
14AWG/500ft.
(150m)
14AWG/500ft.
(150m)
14AWG/500ft.
(150m)
14AWG/500ft.
(150m)
14AWG/500ft.
(150m)