System Overview

5.1.1System Module Description

The Liebert FS is a modular system composed as follows:

Control Panel

UPS Interconnection Kit

Power Conversion Module

Main Control Module

Flywheel Module

E-Stop (optional-special order)

Components are illustrated in Figure 35.

Control Panel

The Liebert FS uses a control panel as the primary means for an operator to interface with the sys- tem.

UPS Interconnection Kit

The UPS Interconnection Kit is a module that enables the physical interconnection of the Liebert FS and a UPS system. There are several versions that vary, depending on the UPS model.

The Liebert FS is delivered with a UPS interconnection kit consisting of a circuit breaker for connec- tion of the positive and negative terminals coming from the UPS DC bus or from an external discon- nect switch.

Power Conversion Module

The power conversion module is a bi-directional power electronics-based power converter capable of sourcing or sinking power to and from the UPS DC bus.

While performing the Liebert FS’s backup power mission, the power conversion module converts “variable frequency - variable voltage” AC power from the Liebert FS’ motor-generator and delivers regulated DC voltage output to the UPS DC bus.

Conversely, for the Liebert FS’s needs in charging power, the power conversion module converts DC power from the UPS DC bus into “variable frequency - variable voltage” AC power for the Liebert FS’ motor-generator.

Main Control Module

The Main Control Module provides the overall control of the Liebert FS as well as the specific control for:

Motor-generator

Active magnetic levitation hardware

Flywheel Module

The Flywheel Module houses several major components:

Motor-generator—synchronous reluctance technology

Rotating group—high-speed carbon composite flywheel, high-speed shaft and rotor of the motor- generator

5-axis active magnetic levitation hardware

Molecular vacuum pump

E-Stop

The E-Stop is an Emergency Stop that allows the Liebert FS to disconnect from the UPS. The E-Stop is a CE requirement for systems shipping to Europe (and other areas requiring the CE Mark). The feature is available elsewhere as an option. Two choices are available for how the E-Stop is powered, internally or externally. If E-Stop is activated, Liebert FS will enter a self-discharge and shutdown mode.

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Emerson Series 600 System Module Description, Control Panel, UPS Interconnection Kit, Power Conversion Module, Stop

Series 600, SERIES 600T specifications

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