Chapter 14

Maintaining the UPS System

The components inside the UPS cabinet are secured to a sturdy metal frame. All repairable parts and assemblies are located for easy removal, with very little disassembly. This design allows authorized service personnel to perform routine maintenance and servicing quickly.

You must schedule periodic performance checks of your UPS system to keep it running properly. Regular routine checks of operation and system parameters enable your system to function efficiently for many trouble-free years.

14.1 Important Safety Instructions

Remember that your UPS 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. After disconnecting the utility power and the DC power, authorized service personnel should wait at least five minutes for capacitor bleedoff before attempting internal access to the UPS module.

W A R N I N G

￿ Servicing and maintenance should be performed by qualified service personnel only.

￿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 string is an energy source in itself, opening the battery circuit breaker does not de-energize the voltage within the battery string. DO NOT ATTEMPT TO ACCESS

ANY INTERNAL AREA OF THE BATTERY STRING YOURSELF. VOLTAGES ARE ALWAYS PRESENT IN THE BATTERY STRING. If you suspect that a battery string needs service, you should contact your Powerware service representative.

If the string requires service, refer to the battery manufacturer’s operating manual for instructions on battery maintenance or contact your Powerware service representative.

Observe these precautions when working on or around batteries:

￿Remove watches, rings, or other metal objects.

￿Use tools with insulated handles.

￿Wear rubber gloves and boots.

￿Do not lay tools or metal parts on top of batteries or battery cabinets.

￿Disconnect the charging source prior to connecting or disconnecting terminals.

Powerware® 9390 UPS (40–80 kVA) Installation and Operation Manual S 164201535 Rev C

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Powerware 9390 operation manual Maintaining the UPS System, Important Safety Instructions
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9390 specifications

The Powerware 9390 is a high-performance uninterruptible power supply (UPS) designed for critical applications in data centers, telecommunications, and other industries requiring maximum uptime. This UPS system is renowned for its durability, efficiency, and advanced technological features, making it an ideal choice for environment-sensitive operations.

One of the standout characteristics of the Powerware 9390 is its modular architecture. This design allows for scalability, enabling businesses to tailor the power supply to fit their specific needs. Users can add or remove power modules as demand fluctuates, ensuring optimal performance without overspending on unnecessary capacity. The system is available in various power ratings, typically ranging from 40 kVA to 750 kVA.

Among the key technologies utilized in the Powerware 9390 is the Advanced Battery Management (ABM) system. This innovative feature helps extend battery life by monitoring and optimizing charging cycles. The ABM technology uses an intelligent three-stage charging process, significantly reducing battery wear while ensuring high availability of power during outages. This enhancement not only improves reliability but also lowers maintenance costs over time.

Energy efficiency is another hallmark of the Powerware 9390, as it incorporates double-conversion technology to maintain voltage stability. This ensures that sensitive electronic equipment is protected from surges and fluctuations in power supply. Additionally, the UPS offers high input power factor and low harmonic distortion, contributing to overall energy savings while minimizing the environmental impact.

The Powerware 9390 is equipped with advanced monitoring and management features that allow users to maintain complete control over their power infrastructure. An intuitive LCD display provides real-time metrics on system performance, battery status, and operational logs. Furthermore, the UPS can be integrated with network management systems, enabling remote monitoring and management via web interfaces.

In terms of safety characteristics, the Powerware 9390 adheres to rigorous industry standards, ensuring that it provides reliable performance under various operating conditions. Its robust construction and redundant components further enhance reliability, making it a popular choice in mission-critical environments.

In conclusion, the Powerware 9390 stands out as a leader in the UPS market, combining modular scalability, advanced battery management, energy efficiency, and robust safety features. Its ability to adapt to the needs of dynamic organizations while providing reliable power protection makes it an invaluable asset for any critical application. With its state-of-the-art technologies, businesses can depend on the Powerware 9390 for continuity, efficiency, and peace of mind.
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