Powerware 9390 UPS 100160 kVA - Manual (Page 14)

INTRODUCTION
EATON Powerware ® 9390 UPS (20–80 kVA) Installation and Operation Manual S 164201603 Rev 2 www.powerware.com 1-4
1.2.4 Powerware Hot Sync Parallel System
A parallel UPS system with two to four uninterruptible power modules (UPMs) 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
® CAN Bridge Card
provides connectivity for system metering and operational mode control. The parallel
system consists of two to four UPMs each with a parallel CAN Bridge Card, and a
module tie cabinet or load distribution panel to act as a tie point. Each UPM requires a
separate battery cabinet.
1.2.5 Sync Control
An optional Sync Control maintains the critical load outputs of two separate single
module Powerware 9390 UPS systems in synchronization. This option 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.
1.2.6 Optional X-Slot Cards
The optional X-Slot cards support several protocols, such as SNMP, HTTP, AS/400 ® ,
and Modbus ® . See Chapter 12, “Communication,” for additional information.
1.2.7 Remote Monitor Panel
An optional Remote Monitor Panel (RMP) contains backlit status indicators and a local
horn, allowing you to monitor the operational status and alarm condition of the UPS
from virtually any location within your facility. This option is described further in
Chapter 10, “Using Features and Options.”
1.2.8 Relay Interface Module
An optional Relay Interface Module (RIM) uses relay contact closures to indicate the
operating status and alarm condition of the UPS. This option is described further in
Chapter 10, “Using Features and Options.”
1.2.9 Supervisory Contact Module
An optional Supervisory Contact Module (SCM) establishes an interface between the
UPS system equipment and the customer's monitor. This option is described further
in Chapter 10, “Using Features and Options.”