Liebert PSITM user manual Introduction, Front view of UPS

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Introduction

2.0INTRODUCTION

Congratulations on your choice of the Liebert PowerSure™ PSI Uninterruptible Power Supply (UPS). It provides conditioned power to microcomputers and other sensitive electronic equipment.

Upon generation, AC power is clean and stable. However, during transmission it may be subject to voltage sags, spikes, or complete power failure which may interrupt computer operations, cause data loss, or even damage equipment. The PowerSure PSI protects equipment from these disturbances.

The PowerSure PSI comes in nominal power ratings of 1000, 1440, 2200, or 3000 VA. Refer to 12.0 - Specifications for details.

The PowerSure PSI is a 2U, line-interactive UPS that may be installed in a rack or used in a tower configuration. A line-interactive UPS continuously conditions and regulates its output voltage, whether mains power is present or not. It supplies connected equipment with clean, sinewave power to simulate the power generated by the mains. Sensitive electronic equipment operates best from sinewave power.

For ease of use, the PowerSure PSI contains Status Indicators to display Load Level, Battery Level, Buck/Boost, Over Temperature and Battery. It also provides self-diagnostic tests, a combination ON/ Alarm Silence/Battery Test button, an OFF button and Voltage Programming button.

The PowerSure PSI has USB, DB-9 (RS232/contact closure) and Intellislot interface ports for commu- nications between the UPS and a LAN server or other computer systems. The DB-9 port provides detailed operating information including voltages, currents, and alarm status to the host system when used in conjunction with Liebert’s MultiLinksoftware. MultiLink software can also remotely control UPS operation. The USB port provides detailed operating information and alarm status to the host system when used in conjunction with the Liebert Human Interface Device (HID) and Microsoft Power Manager software.

Figure 1 Front view of UPS

OFF Button

ON/Alarm Silence/

Battery Test Button

Voltage

Programming

Button

UPS Display (bezel removed)

Fault

Indicator

Load Level Indicators

Battery Level Indicators

UPS Status Indicators

4

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Contents PowerSure PSI Power AvailabilityPage Table of Contents Figures Important Safety Instructions Safety PrecautionsPage Glossary of Symbols Voltage Programming ButtonIntroduction Front view of UPSExternal Battery RS232 DB-9 Cabinet Connector PortAC Input USB PortInput RelayMajor Components Battery Charger BatteryAutomatic Voltage Regulator Inverter-1000/1440 Models OnlyWHAT’S Included Preparation Tower UPS InstallationInstallation Rack-Mount UPS Conversion and Installation Two 2 M4x6 Flat Head Screws Rack Mount HandlesWasher M5x12 Flat Screw Vertical overlay for towerOption 1 Serial Communications RJ11/RJ45 connectionExternal Battery Cabinet Installation Key to Repo switch connections 24 VDC Sense GroundON/Alarm Silence/Battery Test Button Controls and IndicatorsAll indicators illuminated For illustrative purposes only OFF ButtonLoad Level Indicators-4 green, 1 amber Battery Level Indicators-5 greenAC Input Indicator-Green Buck/Boost Indicator-GreenOver Temp Indicator-Amber Fault Indicator-RedNormal Mode Buck/Boost ModeMains power present Within operational limits Indicator shows UPS in Boost Mode solid greenBattery Mode Battery Recharge OperationBattery Indicator illuminated Battery Indicator flashes greenDB-9 Connector Remote Shutdown Via the DB-9 ConnectorCommunications DB-9 pin assignmentUPS Intelligent Communications Data Line Protection ConnectorsUSB Interface Port Input Voltage Output Voltage Setting Range Battery Mode Voltage Programming ProcedureLoad Level Indicators Voltage Programming Button Cleaning the UPS Battery ReplacementMaintenance Maintaining BatteriesInternal Battery Replacement Procedure Troubleshooting Status indicatorsTroubleshooting chart Problem Cause SolutionSpecifications UPS specificationsBattery cabinet specifications Battery ParameterSee Battery run times Environmental Model Number PS1000RT2-230 PS1440RT2-230 PS2200RT2-230Battery run times Page Technical Support/Service Company Behind the ProductsLocations Asia 23F, Allied Kajima Bldg

PSITM specifications

The Liebert PSITM is an advanced power protection system designed to ensure the reliability and efficiency of critical systems in data centers, industrial applications, and mission-critical environments. As the demand for uninterrupted power supply continues to grow, the Liebert PSI serves as an indispensable asset.

One of the main features of the Liebert PSI is its online double-conversion technology. This method guarantees a continuous supply of clean and stable power to connected loads by converting incoming AC power to DC, then back to AC. This process eliminates power disturbances such as voltage sags, surges, and harmonics, ensuring that sensitive equipment operates without interruption.

In addition to its robust power protection capabilities, the Liebert PSI offers scalable solutions to meet varying power requirements. Ranging from 5 kVA to 40 kVA, it can be configured for single or three-phase operation. This flexibility allows businesses to tailor the system to match their specific needs, whether they are expanding data center operations or simply upgrading existing infrastructure.

Another notable characteristic of the Liebert PSI is its energy efficiency. The unit is designed to operate with a high efficiency of up to 94%, which not only reduces operational costs but also minimizes the environmental impact. Moreover, it features an eco-mode that optimizes energy use during non-critical operations without sacrificing reliability.

The Liebert PSI is equipped with advanced communication and management capabilities. It includes an intuitive LCD display for real-time monitoring, enabling users to access vital information about the unit's performance and status. Additionally, it supports various communication protocols such as SNMP and Modbus, allowing for seamless integration into existing management systems.

Furthermore, the Liebert PSI is designed with an emphasis on modularity, allowing for easy upgrades and maintenance. This modular approach reduces downtime and enhances serviceability, ensuring that the system remains reliable throughout its lifecycle.

In summary, the Liebert PSITM stands out as a comprehensive power protection solution that combines cutting-edge technology, energy efficiency, and user-friendly features. Its commitment to safeguarding critical systems against power disturbances makes it a vital component in the infrastructure of any modern data center or industrial setting.