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Powerware BPIII Harsh Environment UPS 50--75 kVA Installation and Operation
164201261 Rev. F 111503
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 15-pin
connectors labeled J1 through J4.
Figure 38. Relay Interface Module
TheRIMcanprovidethesesignals:
• UPS AVAILABLE (pins 1 and 12) Contacts are closed when the UPS is
offline.
• UPS OFF LINE (pins 3 and 13) Co ntacts 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.