Dry Contacts; Table 1; Ups Input Dry Contacts; Table 2 Ups Control Contacts With Battery Cabinet Or Module Battery Disconnect - Emerson Liebert NXL Installation Manual

2.3.1

Dry Contacts

NOTE
If connection to more than one module is required, use a separate contact for each module.

Table 1

UPS input dry contacts

Item
Remote EPO
Input Form C
On Generator
Input Form C
Table 2 UPS control contacts with battery cabinet or module battery disconnect
Item
CAN Bus and
24V Power
Supply
Table 3 UPS control contacts with maintenance bypass
Item
Maintenance
Isolation Breaker
1
(MIB) Form C
Maintenance Bypass
Breaker (MBB) Form C
Maintenance Bypass
1
Enable Form C
Remote EPO Input
Key Status Input Form C
Module Output Breaker
2
(MIB) Form C
Rectifier Input Breaker
(RIB) Form C
Bypass Input Breaker
(BIB) Form C
1. For 1+N systems with a maintenance Bypass, these Aux contacts must be run to each module from an isolated source.
2. For 1+N systems, these breaker Aux contact go to the UPS that it is associated with.
Terminal
Block Pin
1 REPO Switch, normally open contact
2 REPO Switch, common contact
TB0824
REPO Switch, normally closed contact, set jumper
3
J5: 1-2 to enable, 2-3 to disable
1 On Generator switch, closed = On Generator
2 On Generator switch, common
TB0816
On Generator switch,
3
closed = Not On Generator
Terminal
Block Pin
1 Battery Interface Board TB1154-1
2 Battery Interface Board TB1154-2
TB1154A
3 Battery Interface Board TB1154-3
4 Battery Interface Board TB1154-4
Terminal
Block Pin
TB0811
TB0813
1
TB0821
1
TB0825
1
TB0820
TB0815
TB0810
TB0812
Connects to
(Description of External Item)
Connects to
(Description of External Item)
Connects to
(Description of External Item)
1 CB aux. contact, closed = CB is closed
2 CB aux. contact, common
3 CB aux. contact, closed = CB is open
1 CB aux. contact, closed = CB is closed
2 CB aux. contact, common
3 CB aux. contact, closed = CB is open
Maintenance Bypass Cabinet,
1
closed = load not on inverter
2 Maintenance Bypass Cabinet, common
Maintenance Bypass Cabinet,
3
closed = load on inverter
1 REPO Switch, normally open contact
2 REPO Switch, common contact
1 Key status switch, closed = key removed
2 Key status switch, common
3 Key status switch, closed = key inserted
1 CB aux. contact, closed = CB is closed
2 CB aux. contact, common
3 CB aux. contact, closed = CB is open
1 CB aux. contact, closed = CB is closed
2 CB aux. contact, common
3 CB aux. contact, closed = CB is open
1 CB aux. contact, closed = CB is closed
2 CB aux. contact, common
CB or Switch aux. contact,
3
closed = CB or switch is open
10
UPS Electrical Installation
Wire Size/
Max Length
14AWG/
500ft.
Wire Size/
Max Length
18 AWG
1000ft.
Wire Size/
Max Length
14AWG/500ft.
(152m)
14AWG/500ft.
(152m)
14AWG/500ft.
(152m)
14AWG/500ft.
(152m)
14AWG/500ft.
(152m)
14AWG/500ft.
(152m)
14AWG/500ft.
(152m)
14AWG/500ft.
(152m)