Powerware 9335 operation manual Maintenance Bypass Mode, Line INV

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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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Contents Uninterruptible Power Supply 80 kVA 120 kVA Page Important Safety Instructions Table of Contents Understanding UPS Operation Operational Controls and FeaturesUsing the Control Panel Responding to System Events Product SpecificationsAppendix a Customer Information Warranty UPS Operating InstructionsMain Elements of the UPS System List of FiguresList of Tables Introduction Basic System Configurations Conventions Used in This Manual Getting Help Safety ConsiderationsSection Installation This page left intentionally blank Getting Started Installing the UPSCreating an Installation Plan Environmental Considerations Preparing for Wiring the UPS SystemPreparing Your Site Inspecting and Unpacking Each Cabinet Powerware 9335 80 kVA and 120 kVA UPS PackagingDo not tilt cabinets more than ±10 degrees from vertical Preliminary Installation Information Installing the UPS SystemUPS Cabinet Installation Installing External Battery Power Wiring Installing Customer Connections Initial Startup Battery Cabinet InstallationCompleting the Installation Checklist Installation Checklist Important Safety Instructions Installing and Connecting BatteriesThis page left intentionally blank To Install a Remote EPO Installing a Remote EPO ControlInstallation Procedures To Operate a Remote EPO Remote EPO Wire TerminationsSection Operation This page left intentionally blank Looking Inside the UPS System Understanding UPS OperationREV a Normal, Battery and Bypass Modes Normal Mode Normal ModePage Static Bypass Bypass ModePage Battery Mode Battery ModePage Maintenance Bypass Mode Maintenance Bypass ModeBoost Converter Batteries and Battery ChargerFunctional Description Input RectifierStatic Bypass Maintenance BypassGeneral Operational Controls and FeaturesSystem and Load ON/OFF UPS Operational ControlsControl Panel UPS Standard Features Communications Options and AccessoriesRemote Emergency Power OFF Battery CabinetsSafety Considerations Protective Grounding Terminal Symbols, Controls, and IndicatorsDescription Using the Control PanelLED Indicators Using the Control PanelPower Management Display 4 ON/OFF Startup and Shutdown Pushbuttons Pushbutton FunctionsStatus Screens Description of the LCD ScreenLoad OFF LCD Display Structure and NavigationMeasurements Screen Main Menu ScreenEvent Log Screen Commands Screen Set-Up User UPS DataSET-UP Service Password Set-Up ServicePerating Modes On Line Mode Inverter ModeOFF Line Mode Bypass or Economy Mode Line INV Maintenance Bypass ModeParallel Isolator IA2 Operation Start-Up Procedure for the UPSUPS Operating Instructions LED Indicator Color Complete Shutdown Procedure for the UPS Line OFF Bypass Inverter Battery Load Transfer to Maintenance BypassRed This page left intentionally blank Responding to System Events AlarmsMenu, Commands, Event Log, and Measurements Alarm Condition Meaning Suggested Solution Fault Identification and CorrectionSlot Communication Modules Communications10Single-Port Serial Card X-Slot Location on Front of Powerware 9335 UPS CabinetCommunication Port on the Single Port Serial Card 10-4 Generator on Facility Options11-2 General Important Safety InstructionsMaintaining the UPS System Perform the following checks Daily Performing Preventive MaintenanceUPS System Input Product SpecificationsSystem Information UPS System Output Environmental SpecificationsAppendix a Customer Information Powerware 9335 80 kVA Powerware 9335 120 kVA AC Input to Phase a #6-250 kcmils Cooper 42.4 375 Table F. Maximum Output Circuit Breaker Ratings Amperes Table E. Maximum Input Circuit Breaker Ratings AmperesTerminal Name Description Table G. Customer Interface Inputs and OutputsAlarm MNS REV a 07/11/2003 Table K. System Clearances Table J. Equipment WeightAmbient Temperature Range Powerware 9335 80kVA and 120 kVAElements Figure A-2. Powerware 9335 80 kVA and 120 kVA Label 3A, 3B, 3C, 3N 1A, 1B, 1C, 1N2A, 2B, 2C, 2N Electrical Diagram 120 kVA S06-0001ULA Powerware NW4007 Figure A-7. UPS Cabinet Dimensions Rear View 750 mm .6 inches 700 mm .6 inches 1800 mm Page Page Page Page Limited Factory Warranty for THREE-PHASE Powerware Products This page left intentionally blank

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.
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