Powerware 9315s User Manual
Page 55
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7--3
Powerware 9315 Parallel Capacity/Redundant System with PHP SSBM
164201373 Rev. A
092402
7.2
Standard Modes of Parallel Operation:
Normal, Battery, and Bypass Modes
With the Parallel Capacity/Redundant system, the system continues to function
automatically to supply AC electrical power to the critical load. There are three
standard operation modes:
•
In
Normal mode, Parallel Capacity/Redundant system functions normally,
suppling clean, filtered power from the UPMs to the load.
•
In
Bypass mode, the SSBM bypass input supplies the load and isolates the
UPMs.
•
In
Battery mode, the battery cabinet supplies DC power, which maintains UPM
operation.
The following descriptions provide the Parallel Capacity/Redundant system
operating mode differences.
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