Relay Card; Table 28 Relay Card Pin Configuration - Emerson Liebert NX 400V User Manual

9.2.2

Relay 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/VDC at 1A and supported in any of the three NX Intellislot bays.
Table 28 Relay Card pin configuration
Pin
Function
1 UPS Fault
2-3 Not Used
4 UPS Fault
5 Summary Alarm**
6 Summary Alarm**
7 Any Mode Shutdown return
8 Not Used
9 Common - Low Battery
10 Low Battery
11 Low Battery
12-13 Not Used
14 UPS Any Mode Shutdown
15 On UPS
16 On Battery
17 Common - UPS Fault, Summary Alarm,
On UPS, On Battery, On Bypass
18 On Battery
19 ÷ 23
Not Used
24 On Bypass
25 Not Used
**A Summary Alarm occurs when any of the following conditions exist:
• Utility power is out of the acceptable range (voltage and/or frequency)
• UPS is in BYPASS MODE (load not on Inverter power)
• UPS Battery is LOW
• UPS fault has occurred
#
Connection
JP01 Pin 9 to Pin 17
JP02 Pin 7 to Pin 17
Operation
Closed if no UPS failure
Closed if UPS fails
Closed if SUMMARY ALARM** occurs
Closed if no alarm conditions are present
Not – use External EPO terminal
Closed if battery is OK
Closed if LOW BATTERY point occurs.
Not support– use External EPO terminal
Closed if ON UPS (inverter) power
Closed if ON BATTERY power (Utility failure)
Closed if not ON Battery power (Utility OK)
Closed if ON BYPASS
Table 29:
Description
Allows all relay COMMONS to be tied together.
REMOVE - (Interconnects all relay COMMONS and the (not supported)
ANY MODE SHUTDOWN Return.
112
Options—For Assembly Inside the UPS Cabinet