Option Installation

7.4Relay Card

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 signals, 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® APM™.

Table 20 Relay Card pin configuration

Pin

Function

Operation

 

 

 

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)

 

 

 

 

Common - UPS Fault,

 

17

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.

Table 21 Relay card jumper configuration

Number

Connection

Description

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

 

 

68

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Emerson 115-120, 15-90KVA Relay Card pin configuration, Relay card jumper configuration, Pin Function Operation
Page 77 Page 79

115-600V, 115-208, 115-120, 115-50/60HZ, 115-480 specifications

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