Powerware 9315s User Manual Page 67

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8-- 1
Powerware 9315 Parallel Capacity/Redundant System with PHP SSBM
164201373 Rev. A 092402
Operational Cont rols
and Features
8.1 General
The Parallel Capacity/Redundant system should function automatically and require
very little attention during normal operation. The controls and indicators identified
in this section are used during startup, to monitor normal operation and during
abnormal events.
Figure 8---1 (sheets 1 thru 4) identify and show the location of the controls and
indicators on the typical Switchboard System Bypass Module (SSBM) control
section. The following descriptions provide a brief overview of the SSBM controls,
and standard and optional features.
NOTE: Read the Operation section and have thorough knowledge of Parallel
Capacity/Redundant operation before attempting to operate. For a more
detailed description of UPS operation, refer to Powerware 9315 Operation
manual supplied with the UPS system.
8.2 SSBM Standard Features
The SSBM has many standard features that provide cost-effective and consistently
reliable power protection:
8.2.1 Control Panel
The Control Panel on the front of the SSBM control section contains an LCD screen
to display the current status of the Parallel Capacity/Redundant system. You can
view a statistical history and log of system events and display a real-time graphic
representation of power flowing through the system components. Backlit status
indicators show the operating mode of the SSBM and alert you to system events.
The SYSTEM MO D E switch, also located on this panel, is used to start and stop the
system and transfer the load between normal UPM operation and bypass operation.
The EMERGENCY UPM OFF pushbutton is located at the top of the control panel,
and the PUSH IN TO RESET button for EMERGENCY UPM OFF is located above
the SYSTEM MODE switch. The Control Panel is described in chapter 9, “Using the
Control Pane l”.
8.2.2 SSBM Circuit Breakers
The SSBM contains three circuit breakers, the S ystem Output Breaker (CBS), the
System Bypass Breaker (CBP), and the Backfeed Protection Breaker (FBP).
CBS connects the output of the UPMs to the critical load. CBP is used as the
bypass supply in the event the output of the UPMs are not available and to supply
the critical load during maintenance. FBP is used to prevent power from being fed
back to the UPMs in the event the static switch fails. These breakers are electrically
controlled by the SSBM and are automatic in operation.
8
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