Emerson 480V Manuel D’Utilisation

The relay card provides voltage-free contact closures for remote monitoring of alarm conditions.
Delivering On Battery, On Bypass, Low Battery, Summary Alarm, UPS Fault and On UPS sig-

nals, the easy-to-install card integrates with AS/400 computers (additional cable required) and other 

relay contact monitoring systems.
The relay card is rated for 24 VAC/DC at 1A and supported in any of the three Liebert IntelliSlot bays 

on the Liebert NX.
Table 22

1

UPS Fault

Closed if no UPS failure

2-3

Not Used

4

UPS Fault

Closed if UPS fails

5

Summary Alarm**

Closed if SUMMARY ALARM** occurs

6

Summary Alarm**

Closed if no alarm conditions are present

7

Any Mode Shutdown return

Not supported – use External EPO terminal

8

Not  Used

9

Common - Low Battery

10

Low Battery

Closed if battery is OK

11

Low Battery

Closed if LOW BATTERY point occurs

12-13

Not Used

14

UPS Any Mode Shutdown

Not supported – use External EPO terminal

15

On UPS

Closed if ON UPS (inverter) power

16

On Battery

Closed if ON BATTERY power (Utility failure)

17

Common - UPS Fault, Summary Alarm, 

On UPS, On Battery, On Bypass

18

On Battery

Closed if not ON Battery power (Utility OK)

19-23

Not Used

24

On Bypass

Closed if ON BYPASS

25

Not Used

**A Summary Alarm occurs when any of the following conditions exist:
1. Utility power is out of the acceptable range (voltage and/or frequency).
2. UPS is in BYPASS MODE (load not on Inverter power).
3. UPS Battery is LOW.
4. UPS fault has occurred.

JP01 

Pin 9 to Pin 17 

Allows all relay COMMONS to be tied together.

ANY JP02 

Pin 7 to Pin 17 

REMOVE - (Interconnects all relay COMMONS and the (not 

supported) MODE SHUTDOWN Return