Relay Interface Module
An optional Relay Interface Module (RIM) uses relay contact closures to indicate the operating status and alarm condition of the UPS system. A maximum of two monitoring accessories (RMPs, RIMs, or SCMs) can be installed. See Table 1 for the number of accessories permitted. Figure 38 shows the RIM with its four
Figure 38. Relay Interface Module
The RIM can provide these signals:
•UPS AVAILABLE (pins 1 and 12) Contacts are closed when the UPS is offline.
•UPS OFF LINE (pins 3 and 13) Contacts are closed when the UPS is operating in Normal mode.
•UTILITY FAILURE (pins 6 and 15) Contacts are closed when Utility Failure is detected.
•BATTERY WEAK (pins 5 and 14) Contacts are closed when approximately 2 minutes of battery time is remaining, before the critical load is lost.
Powerware BPIII Harsh Environment UPS | 75 |
