Features, Options, and Accessories

8.2.3 Integrated Accessory Cabinet (IAC-B, IAC-T, and IAC-D)

The following IACs are designed for use with the Powerware 9390 three-phase Uninterruptible Power Systems:

￿The IAC-B provides maintenance bypass functions.

￿The IAC-T provides parallel tie cabinet or parallel tie cabinet with maintenance bypass functions.

￿The IAC-D provides power distribution options for servers, racks, and other equipment via distribution panelboards, or distributes power to larger loads via distribution circuit breakers.

The IACs are housed in a single, free-standing cabinets designed for line-up-and-match installation, but may be installed separate from the UPS cabinet.

8.2.4 Powerware Hot Sync Parallel System

A parallel UPS system with two to four uninterruptible power modules can be installed to provide a parallel capacity and/or redundant system. This load sharing system provides more capacity than a single UPS, and can provide backup, depending on the load and configuration. In addition, when one UPM is taken out of service for maintenance or is not operating properly, a redundant UPM continues to supply uninterrupted power to the critical load. A Powerware Hot Sync Computer Area Network Bridge X-Slot card provides connectivity for system metering and operational mode control. The parallel system consists of two to four UPMs each with a parallel CAN card, and a module tie cabinet or load distribution panel to act as a tie point. Each UPM requires a separate battery cabinet.

8.2.5 Sync Control

An optional Sync Control maintains the critical load outputs of two separate single module Powerware 9390 UPS systems in synchronization. This facilitates the uninterrupted transfer of the load from one load bus to another by means of transfer switches. The Sync Control is housed in a wall-mounted panel that can be located between the UPS units for easy wiring.

8.2.6 Optional X-Slot Cards

The optional X-Slot cards support several protocols, such as SNMP, HTTP, AS/400®, and Modbus®. See Chapter 13, “Communication,” for additional information.

8.2.7 Mini-CSB

The installation of the mini-CSB provides two additional X-Slot bays, increased logging to 512 events, five additional programmable languages, a real-time clock, four additional building alarms, and enhanced alarm contact programming.

EATON Powerware® 9390 UPS (100–160 kVA) Installation and Operation Manual S 164201604 Rev B powerware.com

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Powerware 100160 kVA Integrated Accessory Cabinet IAC-B, IAC-T, and IAC-D, Powerware Hot Sync Parallel System, Mini-CSB