Powerware 9315s - Manual (Page 151)

15--1 Powerware 9315 Parallel Capacity/Redundant System with PHP SSBM
164201373 Rev. A 092402
Maintaining the Parallel
Capacity/Redundant System
15.1 General
You must schedule periodic performance checks of your Parallel Capacity/Redundant
system to keep it running properly. Regular routine checks of operation and system
parameters will enable your system to function efficiently for many trouble-free years.
NOTE: Refer to the applicable Powerware 9315 Operation manual provided with
the UPS for UPS maintenance.
15.2 Important Safety Instructions
Remember that your Parallel Capacity/Redundant system is designed to supply
power EVEN WHEN DISCONNECTED FROM THE UTILITY POWER. The UPS
module interiors are unsafe until the DC power source is disconnected and the
electrolytic capacitors are discharged. The SSBM is unsafe until the UPS modules
have been powered down and bypass power has been removed. After
disconnecting the utility power and the DC power, authorized service personnel
should wait at least 5 minutes before attempting internal access to the UPS
module.
WARNING:
Servicing and maintenance should be performed by
qualified service personnel only.
WARNING: LETHAL VOLTAGE PRESENT.
This unit should not be operated with the cabinet doors open or protective
panels removed. Do not make any assumptions about the electrical state of any
cabinet in the UPS system.
Since each battery rack is an energy source in itself, opening the Battery Circuit
Breaker does not de-energize the voltage within the battery rack. DO NOT
ATTEMPT TO ACCESS ANY INTERNAL AREA OF THE BATTERY RACK
YOURSELF. VOLTAGES ARE ALWAYS PRESENT IN THE BATTERY RACK.
If you suspect that a battery rack needs service, you should contact your local
Powerware field service office.
If the rack requires service, refer to the battery rack manufacturer’s operating
manual for instructions on battery rack maintenance, or contact your local
Powerware field service office.
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