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

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 50--75 kVA Installation and Operation

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164201261 Rev. F 111503

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Powerware 5075 kVA operation manual Relay Interface Module