Marathon Electric DVR 2000E+ - Section 1: Overview; General Description; Key Features

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Marathon Electric (a division of RBC Manufacturing Corp.) reserves the right to change specications and this manual without notice.
Revised 06/2011
SECTION 1 - OVERVIEW
SAFTY AND PRECAUTIONS
When the DVR
®
2000E+ Voltage regulator is mounted on the generator at the factory a molded cover is
provided. This cover prevents exposure and unintentional contact. This cover must be installed whenever the voltage
regulator is energized.
:Use caution when working around the component side of the DVR
®
2000E+. Voltage levels
may be present at the exposed components and contacts when the unit is energized.
GENERAL
The DVR
®
2000E+ is a microprocessor-based control device that regulates the output voltage of a brushless, ac
generator by controlling the current into the generator exciter field. Input power to the DVR®2000E+ is derived
from a single phase, multi-pole, high-frequency, permanent magnet generator (PMG).
The DVR
®
2000E+ is supplied in an encapsulated package designed for behind-the-panel mounting. The
DVR
®
2000E+ is held in place by thread-forming screws that thread into its plastic shell. The front panel display
annunciates regulator status and system conditions. DVR
®
2000E+ connections are made through four types of
connectors:
 •Tenquarter-inch,quick-connectterminalsforgeneratorconnections
 •Two12-pinDeutsch(DTCstyle)connectorsforcurrenttransformer(CT)andsystem
interface connections
 •One3-pinAmp/TycoMiniMate-N-LokreceptacleforCANbusinterface.
 •One9-pinDB-9typeconnectorforcommunicationbetweentheDVR
®
2000E+ and a
Windows
®
compatible PC.
FEATURES
DVR
®
2000E+ has the following features:
 •Threeregulationmodes:singlephaseautomaticvoltageregulation(AVR1),threephase
automatic voltage regulation (AVR3) and field current regulation (FCR)
 •Presetstabilitysettings
 •AdjustablesoftstartinAVR1orAVR3regulationmodes
 •Underfrequency(volts/hertz)regulation
 •Three-phaseorsingle-phasegeneratorvoltage(RMS)sensing
 •Three-phaseorsingle-phasegeneratorcurrent(RMS)sensing
 •Truethree-phasepowermetering
 •Fieldcurrentsensing
 •Fieldvoltagemonitoring
 •Contactinputsforsysteminterfacecapability