Liebert NXC 40kVA - IS-485 L Card

Chapter 8 Options 75
Liebert NXC 30kVA And 40kVA UPS User Manual
Figure 8-16 IS-Relay card
The UPS provides IS-Relay card for the user to use the dry contact signal to monitor the UPS.
The functions of the IS-Relay card are listed in Table 8-5.
Table 8-5 Function of UPS IS-Relay card
Pin
Function
Operation
1
Common-Low Battery
2 Low Battery
Closed if low battery point occurs
3 Low Battery
Closed if battery is OK
4
Common-UPS Fault
5
UPS Fault
Closed if UPS fault occurs
6
UPS Fault
Closed if no UPS failure
7
Common-On Battery
8
On Battery
Closed if On Battery power (Utility failure)
9 On Battery
Closed if not On Battery power (Utility OK)
10
Signal Ground
Use for UPS Any-Mode Shutdown
11
Signal Ground
Use for UPS Any-Mode Shutdown
12
UPS Any-Mode Shutdown
Turn UPS output Off when shorted to Pin 10 or 11
13
Summary Alarm*
Closed if no alarm conditions are present
14
Summary Alarm*
Closed if Summary Alarm occurs
15
Common-Summary Alarm*
16 On UPS
Closed if On UPS (inverter) power
17
On Bypass
Closed if On Bypass
18
Common-On Bypass
For more information of the IS-Relay card, refer to the Liebert IntelliSlot Relay Card User Manual in accessory.
The installation method of the IS-Relay card is the same as that of the IS-WEBL card described in 8.2.6 IS-WEBL
card. Refer to 3.2.11 Signal Cable Connection Steps for the cabling and routing of the signal cables.
8.2.8 IS-485L Card
Figure 8-17 shows the appearance of the IS-485L card.