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Powerware 9335 operation manual Maintenance Bypass Mode, Line INV

Models: 9335

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inverter within 5 milliseconds. When utility power returns, the UPS will startup in NORMAL (inverter) mode. Operator intervention is required to reset to ECO mode. The battery charger remains active in the “Bypass-Mode”. The “Bypass-Mode” is recommended only if the loads can tolerate power interruptions of up to 5 ms, the transfer time from Bypass Mode to ON-LINE Mode.

CAUTION:

In order to provide the load with maximum protection, it is always recommended that the load be supplied by the inverter (ON-LINE Mode).

7.4.3 “MAINTENANCE BYPASS” Mode

The Maintenance Bypass Mode is performed by means of the IA1 BYPASS SWITCH on the front of the UPS. When the switch is in the “O” (OFF) position, the Bypass Switch is OPEN. This is the normal operating condition, where the load is supplied by the inverter, or via the static bypass. When the switch is in the “I” (ON) position, the Bypass Switch is CLOSED, causing load power to be supplied directly from the utility source.

LED’s green when shown shaded, unless noted

LINE 2

BYPASS

BATTERY

(Red)

LINE 1

INV.

CAUTION:

Before transferring the load to Maintenance Bypass using the IA1 switch, always make sure that the UPS cabinet is in the “Bypass-Mode”. Failure to observe this procedure can cause equipment damage.

CAUTION:

When the UPS is operated in the Maintenance Bypass mode through the Bypass Switch IA1, the load will not be protected in the event of a utility supply failure. It is therefore strongly recommended that the user switch back to ON-LINE (INVERTER ON) or BYPASS (OFF-LINE MODE) as soon as possible.

Powerware 9335 (80 kVA and120 kVA) Installation and Operation

7-11

164201396 REV. A 071103

 

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Powerware 9335 operation manual Maintenance Bypass Mode, Line INV
Page 58 Page 60

9335 specifications

The Powerware 9335 is a robust and efficient uninterruptible power supply (UPS) designed to deliver reliable power protection for critical applications. Expanding upon Eaton's tradition of offering advanced power management solutions, the Powerware 9335 is tailored for environments that demand high availability and uptime.

One of the standout features of the Powerware 9335 is its double-conversion online topology, which ensures a continuous supply of clean and regulated power. This design operates without any transfer time to battery power, effectively protecting sensitive equipment from all types of power disturbances, including surges, sags, and outages.

The UPS is available in a range of power ratings, from 8 kVA to 40 kVA, making it versatile enough to support a variety of applications ranging from small server rooms to larger data centers. The modular architecture of the Powerware 9335 allows for seamless scalability, enabling users to add additional capacity or redundancy as their power needs evolve. This feature is particularly beneficial in dynamic environments where equipment and loads can frequently change.

Another significant characteristic of the Powerware 9335 is its high efficiency, often exceeding 94% in normal operation. This efficiency not only reduces energy costs but also minimizes heat generation, leading to lower cooling requirements. The UPS employs advanced technologies such as Intelligent Power Management and Smart APM (Adaptive Power Management) to optimize power usage, further enhancing its overall performance and reducing the total cost of ownership.

The user-friendly LCD display furnishes real-time data regarding UPS status, battery condition, and power settings, facilitating proactive management and monitoring. In addition, the unit can be monitored and managed remotely, ensuring that administrators can access critical information even when they are not on-site.

The Powerware 9335 also comes equipped with various connectivity options, including USB, serial, and SNMP for seamless integration into existing IT infrastructure. Additionally, advanced communication capabilities allow for integration with building management systems, ensuring comprehensive power management and reporting.

Safety is paramount, and the Powerware 9335 incorporates numerous features designed to protect both the UPS and connected equipment. This includes overload protection, battery health monitoring, and environmental monitoring, which collectively contribute to a resilient power protection strategy.

In summary, the Powerware 9335 is an exceptional UPS offering from Eaton, featuring high availability, scalability, efficiency, and robust management options. With its advanced technologies and features, it stands out as a premier choice for organizations seeking to safeguard their critical systems and data.