Marathon Electric DVR 2000E+ User manual

DVR®2000E+
DIGITAL VOLTAGE REGULATOR
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL

3
Marathon Electric (a division of RBC Manufacturing Corp.) reserves the right to change specications and this manual without notice.
Revised 06/2011
CONTENTS
SECTION 1 – OVERVIEW
General ................................................................................................................................. 5
Features ................................................................................................................................ 5
Protections ............................................................................................................................ 6
Warranty................................................................................................................................ 6
SECTION 2 – SPECIFICATIONS
Operating Power................................................................................................................... 7
Generator Voltage Sensing................................................................................................... 7
Generator Current Sensing................................................................................................... 7
Contact Inputs ...................................................................................................................... 7
Fault Contact Output............................................................................................................. 7
Field Output .......................................................................................................................... 7
AVR1 and 3 Operating Modes .............................................................................................. 8
FCR Operating Mode............................................................................................................ 8
Parallel Compensation.......................................................................................................... 8
Serial Communication Port ................................................................................................... 8
CAN Communication Port..................................................................................................... 8
Over Excitation Protection..................................................................................................... 8
Field Current Limit Protection................................................................................................ 8
Field Instantaneous Over Current Protection........................................................................ 8
Generator Over Voltage Protection....................................................................................... 9
Generator Under Voltage Protection..................................................................................... 9
Soft-Start Function ................................................................................................................ 9
Auxiliary Input ....................................................................................................................... 9
Metering.............................................................................................................................. 10
Environmental ..................................................................................................................... 11
Environmental Test.............................................................................................................. 11
Electromagnetic Compatibility............................................................................................ 11
Electromagnetic Compatibility Tests................................................................................... 11
Mechanical Tests ................................................................................................................ 11
Physical............................................................................................................................... 11
Mating Connectors ............................................................................................................. 11
SECTION 3 – FEATURES AND PROTECTION
Introduction......................................................................................................................... 12
DVR®2000E+ Function Blocks ............................................................................................ 12
DVR®2000E+ Operating Features ...................................................................................... 15
Regulation Modes.................................................................................................... 15
Auxiliary Input .......................................................................................................... 15
Load Sharing ........................................................................................................... 16
Generator Soft Start ................................................................................................. 16
DVR®2000E + Protection Features...................................................................................... 17
Field Over Excitation Shutdown............................................................................... 17
Generator Over Voltage Shutdown.......................................................................... 17
Generator Under Voltage Shutdown........................................................................ 18
Generator Voltage Imbalance Shutdown................................................................. 18
Loss of Generator Sensing Shutdown ..................................................................... 18
Field Current Limiting Shutdown.............................................................................. 19

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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
CONTENTS cont.
Instantaneous Field Over Current Shutdown........................................................... 19
Regulator Over Temperature Shutdown .................................................................. 19
Generator Under Frequency Alarm ......................................................................... 20
Generator Reverse Power Flow Alarm..................................................................... 21
Loss of CAN Communication Alarm ........................................................................ 21
SECTION 4 – INSTALLATION
General ............................................................................................................................... 22
Mounting ............................................................................................................................. 22
Connections........................................................................................................................ 25
Preliminary Set-up on Generator ........................................................................................ 35
Preliminary Set-up on Bench .............................................................................................. 36
SECTION 5 – HUMAN-MACHINE INTERFACE
General ............................................................................................................................... 37
Front Panel Display............................................................................................................. 38
Making Settings Changes................................................................................................... 39
SECTION 6 – GRAPHICAL USER INTERFACE
Header Buttons................................................................................................................... 40
Administration.......................................................................................................... 40
Login........................................................................................................................ 40
Load Factory Settings.............................................................................................. 40
Save to EEPROM ..................................................................................................... 40
Load Config ............................................................................................................. 40
Save Config ............................................................................................................. 41
Connect ................................................................................................................... 41
Parameter Screen Selection Buttons .................................................................................. 41
Metering Tab............................................................................................................ 41
Configuration Tab .................................................................................................... 42
Operating Modes Sub Panel ................................................................................... 42
Set Points Sub Panel ............................................................................................... 43
Protection Settings Sub Panel ................................................................................. 44
CAN Bus Configuration Sub Panel .......................................................................... 45
Identification Tab ..................................................................................................... 45
SECTION 7 – MAINTENANCE AND TROUBELSHOOTING
Preventative Maintenance................................................................................................... 46
Troubleshooting .................................................................................................................. 46
SECTION 8 – CAN BUS INTERFACE
Message Format ................................................................................................................. 53
Outbound Messages From DVR®2000E+ ......................................................................... 55
Inbound Messages From ECU1 or ECU2 or ECU3 ............................................................ 70
APPENDIX A
Alarm Codes ....................................................................................................................... 74
Fault Codes......................................................................................................................... 74
APPENDIX B
Connector Pin-out Figures and Tables................................................................................ 75
APPENDIX C
Quick Start Programming Guide......................................................................................... 78

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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

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Revised 06/2011
 •Contactoutputforfaultindication
 •Generatorparallelingwithreactivedroopcompensationandreactivedifferentialcompensation
 •Front-panelhuman-machineinterface(HMI)forstatusandconguration
 •MODBUSprotocolviaRS232forexternalcommunication
 •DVR®2000E+ Windows®based software for configuration and monitoring
 •ControllerAreaNetwork(CAN)interfacewithCAN2.0BJ1939protocolformeteringandcontrol
 •“Poweron”LEDindicator
 •Congurableauxiliaryinputformeteringandcontrol
PROTECTIONS
DVR®2000E+ has the following protection features:
 •FieldOverExcitationShutdown
 •GeneratorOverVoltageShutdown
 •GeneratorUnderVoltageShutdown
 •GeneratorVoltageImbalanceShutdown
 •LossofGeneratorSensingShutdown
 •FieldCurrentLimitingShutdown
 •InstantaneousFieldOverCurrentShutdown
 •RegulatorOverTemperatureShutdown
 •GeneratorUnderFrequencyAlarm
 •GeneratorReversePowerFlowAlarm
 •LossofCANCommunicationAlarm
WARRANTY
When supplied on a generator, the DVR®2000E+ carries the same warranty as the generator. (a) Marathon
warrants Standby Duty Generators manufactured by or for it to be free from defects in materials and workmanship
and to conform to Marathon’s written specifications for a period of 24 months from date of startup or 30 months
from date of shipment or 1000 hours in use, whichever period shall expire first. (b) Marathon warrants Continuous
Duty Generators manufactured by or for it to be free from defects in materials and workmanship and to conform
to Marathon’s written specifications for a period of 12 months from data of startup or 18 months from date of
shipment, whichever period shall expire first.
When supplied as a separate component, Marathon warrants the DVR®2000E+ to be free from defects in
materials and workmanship and to conform to Marathon’s written specifications for a period of 12 months from
date of shipment.

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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 2 – SPECIFICATIONS
Operating Power
Type: 1-phase, ungrounded PMG
Range: 180 to 240 Vac, 250 to 300 Hz
Burden: 350 VA
 FuseType: Timedelay250V/4.0A
Terminals: 3, 4
Generator Voltage Sensing
 Type: 1-phase/3-phase
 Range: 100to600Vac,50/60Hz
Burden: <1 VA per phase
Terminals: E1, E2, E3
Generator Current Sensing
 Type: 1-phase(BØ)/3-phase
 Rating: 5Aacmaximumcontinuous50/60Hz
Input Impedance: <10 mΩ
Terminals: CT1, CT2 for 1-phase (BØ)
  J2-1,J2-12for3-phase(AØ)
  J2-2,J2-11for3-phase(BØ)
  J2-3,J2-10for3-phase(CØ)
Contact Inputs
Type: Dry Contact
Input Pull-Up Voltage: 3.3 Vdc
 Terminals: DROOP_OFF:  J1-10,J1-4
  UP:  J1-2,J1-4
  DOWN:  J1-3,J1-4
  EXCITATION_OFF: J1-11,J1-4
Fault Contact Output
Type: Form A
Rated Load: 3 A continuous
 Break: 3Aac/0.1Adc
 OperatingVoltage: 240Vac/250Vdcmaximum
 Terminals: J1-6,J1-7
Field Output
Continuous Rating: 75 Vdc, 3.0 Adc
10 Second Forcing Rating
200 Vac Power Input: 150 Vdc, 7.5 Adc
Field Resistance: 18 to 35 *
Terminals: F+, F-

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Revised 06/2011
AVR1 and AVR3 Operating Modes
Range: 100.0 to 600.0 Vac
Voltage Regulation: ±0.25 % over load range at rated power factor
and constant generator frequency.
 TemperatureDrift: ±0.0125%/degreeC
Underfrequency(V/Hz)
Slope: 1.00 to 3.00 PU
Knee: 40.0 to 70.0 Hz
FCR Operating Mode
Range: 0.000 to 3.000 Adc
Current Regulation: ±1.0 % over 18 to 35 Ohms of exciter resistance
 TemperatureDrift: ±0.0125%/degreeC
Parallel Compensation
Modes: Reactive Droop and
Reactive Differential (cross-current)
Droop
Range: 0.0 to 10.0 %
Serial Communication Port
Interface: Full Duplex RS-232
Connector: DB-9 connector on rear panel
Baud: 4800
Data Bits: 8
Parity: None
Stop Bit: 2
Handshaking: None
CAN Communication Port
 Connector: J3
 Protocol: SAEJ1939
 DataRate: 250kbits/sec
Over Excitation Protection
Threshold: 0.500 to 4.000 Adc
Timer: 1.0 to 15.0 seconds
Field Current Limit Protection
Threshold: 0.500 to 7.500 Adc
Timer: 1.0 to 10.0 seconds
Field Instantaneous Over Current Protection
Threshold: 11 Adc

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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
Generator Over Voltage Protection
Threshold: 5.0 to 20.0 %
Timer: 0.75 seconds
Generator Under Voltage Protection
Threshold: 5.0 to 50.0 %
Timer: 1.0 to 15.0 seconds
Soft-Start Function
Range: 2 to 120 seconds
Auxiliary Input
Auxiliary – Controller (AVR3 or AVR1 regulation)
Voltage Range: -3 Vdc to +3 Vdc
Set point Range: -30 % to +30 % shift
Burden: 2260 *
 Terminals: J1-1(+),J1-12(-)
Auxiliary – Controller (FCR regulation)
Voltage Range: 0 Vdc to +3 Vdc
Increment: 1 mA per 1mV
Burden: 2260 *
 Terminal: J1-1(+),J1-12(-)
Auxiliary – Meter (Voltage input)
Voltage Range: -5 Vdc to 5 Vdc
Scale Factor: User-defined
Burden: 2260 *
 Terminal: J1-1(+),J1-12(-)
Auxiliary – Meter (Current input)
Current Range: 4 mA to 20 mA
Scale Factor: User-defined
Burden: 250 *
 Terminal: J1-1(+),J1-12(-)
 Jumper: J1-5toJ1-8

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Revised 06/2011
Metering
 Accuracyofallmeteringvaluesassumes25°C,50/60Hzandlessthan20%THD.
Regulator-side Metering
Generator Voltage
Range: 10 Vac to 600 Vac
Accuracy: 0.5 %
Generator Current
Range: 0.1 to 5.000 Aac (5 Aac CTs)
Accuracy: 0.5 %
Power (Apparent, Real and Reactive)
Range: 0 to 5200 VA and W
  0to4160VARleading/lagging
Accuracy: 3.0 %
Power Factor
 Range: 0.6to1.0leading/lagging
Accuracy: 0.02
Frequency
Range: 40 to 75 Hz
Accuracy: 0.2 Hz
Field Voltage
Range: 0 to 200 Vdc
Accuracy: 5.0 %
Field Current
Range: 0 to 8.0 Adc
Accuracy: 0.5 %
Generator-side (Scaled) Metering
Generator Voltage
Range: 10 V to 15 kV
Accuracy: 0.5 %
Generator Current
Range: 0.1 to 5,000 Aac (5 Aac CTs)
Accuracy: 0.5 %
Power (Apparent, Real and Reactive)
Range: 0 to 10 MVA and MW
  0to8MVARleading/lagging
Accuracy: 3.0 %

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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
Environmental
Operating Temperature: -40° C to +70° C (-40° F to +158° F)
Storage Temperature: -40° C to +85° C (-40° F to +185° F)
Relative Humidity: < 95 %, non-condensating
Ingress Protection: IP52 (front side mounted in conduit box)
IP10 (rear side with protective cover)
Environmental Tests
Humidity: Tested per MIL-STD-705B, Method 711-D
Salt Fog: Tested per MIL-STD-810E
Electromagnetic Compatibility
Immunity: Meets EN 61000-6-2: 2005 Electromagnetic compatibility (EMC) – Part
6-2: Generic standards – Immunity for industrial environments
Emission: Meets EN 61000-6-4: 2007 Electromagnetic compatibility (EMC) – Part
6-4: Generic standards – Emission standard for industrial environments
Electromagnetic Compatibility Tests
Immunity
Electrostatic Discharge (ESD): IEC 61000-4-2
Radiated RF: IEC 61000-4-3
 ElectricalFastTransient(EFT)/Burst:  IEC61000-4-4
Conducted RF: IEC 61000-4-6
Power Frequency and Magnetic Field: IEC 61000-4-8
Emission
Radiated RF: EN 61000-6-4: 2007, 30 MHz to 1000 MHz
Mechanical Tests
Shock: 20 Gs in 3 perpendicular planes
Vibration: 2.5 Gs at 5 to 26 Hz
  0.050”doubleamplitude(27to52Hz)
7 Gs at 53 to 500 Hz
Physical
Weight: 3 lb. (1361 g)
Mating Connectors
 J1: MatingPlugHousing: DeutschDT06-12SB-P012
Mating Plug Wedge Lock: W12S-P012
Mating Plug Terminals: 0462-201-16141
 J2: MatingPlugHousing: DeutschDT06-12SA-P012
Mating Plug Wedge Lock: W12S-P012
Mating Plug Terminals: 0462-201-16141
 J3: MatingPlugHousing: Amp/Tyco172166-1
Mating Plug Terminals: 170366-3

12
Marathon Electric (a division of RBC Manufacturing Corp.) reserves the right to change specications and this manual without notice.
Revised 06/2011
SECTION 3 – FEATURES AND PROTECTION
INTRODUCTION
This section describes how the DVR®2000E+ functions and explains its operating features. DVR®2000E+
functions are illustrated in the block diagram of Figure 3-1.
DVR®2000E+ FUNCTION BLOCKS
The following paragraphs describe each of the function blocks, inputs and outputs illustrated in Figure 3-1.
Generator Voltage
Generator voltage is measured at terminals E1 (A-phase), E2 (B-phase), and E3 (C-phase). Nominal voltages of up
to 600Vac may be sensed at these terminals. Voltage applied to these inputs is scaled, conditioned and applied
to the controller.
Line Currents
Generatorlinecurrents(IA,IB,IC)aremeasuredviacurrenttransformers(CTs)atconnectorJ2orterminalsCT1
and CT2. Current up to 5 Arms may be monitored at these terminals. These currents are scaled, conditioned and
applied to the controller. Refer to Specifications in Section 1 for connector pin assignments.
Field Voltage
Voltage across the regulator field is monitored at terminals, F+ and F-.
Field Current
Current through the exciter field winding is measured at terminal F+. Field current is scaled, conditioned and
applied to the input of the controller.
Contact Input Circuits
Four contact input circuits powered from an internal 3.3 Vdc supply provide input control from user-supplied
contacts (UP, DOWN, DROOP_OFF, EXCITATION_OFF).
UP
ClosingtheUPcontactacrossterminalsJ1-2andJ1-4causestheactiveoperatingsetpointtoincrease.Keeping
the contact closed will continue to increase the operating set point until the limit is reached. The limit is determined
bythevalueenteredintheMaximumVoltageAdjusteldoftheWindows®software.Thiseldisadjustablein
0.1% increments and allows an input range of 0.0% to 15.0%. The effect the UP and DOWN contacts are having
on the set point is displayed in the Windows®software.

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Revised 06/2011
DOWN
ClosingtheDOWNcontactacrossterminalsJ1-3andJ1-4 causestheactiveoperatingsetpointto decrease.
Keeping the contact closed will continue to decrease the operating set point until the limit is reached. The limit
isdeterminedbythevalueenteredintheMaximumVoltageAdjusteldoftheWindows®software. This field is
adjustablein0.1%incrementsandallowsaninputrangeof0.0%to15.0%.TheeffecttheUPandDOWNcontacts
are having on the set point is displayed in the Windows®software.
Note: If power is removed from the DVR®2000E+, the settings from the remote UP/DOWN contacts will be lost.
DROOP_OFF
ClosingtheDROOP_OFFcontactacrossterminalsJ1-10andJ1-4disablesvoltagedroop.Anopencontact
enables voltage droop. This function enables reactive load sharing between generators operating in parallel.
EXCITATION_OFF
ClosingtheEXCITATION_OFFcontactacrossterminalsJ1-11andJ1-4disableseldexcitation.Anopencontact
enables field excitation. This function enables removal of excitation without removing power to the regulator.
Opening the EXCITATION_OFF contact will initiate a soft start and clear any alarm or fault conditions.
Communication Port
The communication port provides an isolated interface for user programming (setup) of the DVR®2000E+ through
the Windows® communication software. Connection is made to the female RS-232 (DB-9) connector with a user-
supplied, standard 9-pin cable. A Null modem cable is unacceptable.
Figure 3-1. Simplified Block Diagram

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Revised 06/2011
Controlled Area Network (CAN) Port
The CAN port provides an isolated interface for communication with and control of the DVR®2000E+. This permits
the integration of the DVR®2000E+asanodeonaCANnetwork.ConnectionismadetotheJ3connectorwitha
user-suppliedAmp/TycoMiniMate-N-Lokplug(seeSection2–Specications).Thecommunicationispowered
from a transformer-isolated supply.
Controller
The controller portion of the DVR®2000E+ includes the microprocessor and performs measurement, computation,
control and communication functions by the use of its embedded programming and the nonvolatile settings stored
in its memory.
Power Input Stage
Input power is applied to terminals 3 and 4 from a Permanent Magnet Generator (PMG). It is rectified and filtered
before being applied to the power amplifier and the power supply.
Power Supply
The internal switch-mode power supply is fed from the power input stage and supplies power at the required DC
voltage levels to the internal circuitry of the DVR®2000E+.
Power Amplifier Stage
The power amplifier is fed from the power input stage and supplies a controlled amount of power to the exciter
field via terminals F+ and F-.
Human-Machine Interface Display
Afour-characterLEDdisplayindicatesvariousoperatingmodes,protectivefunctions,andadjustments.Section
5 – Human-Machine Interface provides more information about the front panel display.
Human-Machine Interface Switches
Changes to settings can be made at the front panel using the four pushbuttons, labeled SELECT, UP, DOWN and
ENTER. Section 5 – Human-Machine Interface provides more information about the front panel switches.
Fault Output Contact
AfaultoutputcontactisprovidedthroughterminalsJ1-6andJ1-7.Thisnormally-open,form-Acontactclosesin
the event of a protective shutdown.

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Revised 06/2011
DVR®2000E+ OPERATING FEATURES
Regulation Modes
The DVR®2000E+ provides three modes of regulation selectable through the HMI or through the Windows®
communication software.
Automatic Voltage Regulation Modes
There are two automatic voltage regulation modes. AVR1 should be selected if the regulator is connected
for single phase voltage sensing and AVR3 should be selected if the regulator is connected for three phase
voltage sensing. In either mode, the DVR®2000E+ regulates the RMS generator output voltage. Regulation is
accomplishedbysensinggeneratoroutputvoltageandadjustingdcoutputexcitationcurrenttomaintainvoltage
attheregulationsetpoint.TheregulationsetpointisadjustedbytheUPandDOWNcontactinputs,throughthe
HMI or through the Windows®communication software. The Auxiliary Input, Droop and Under Frequency functions
may influence the regulation set point.
Field Current Regulation Mode
In Field Current Regulation (FCR) mode, the DVR®2000E+ maintains dc excitation current at a set level. The
regulationsetpointisadjustedbytheUPandDOWNcontactinputs,throughtheHMIorthroughtheWindows®
communication software. The Auxiliary Input function may override the regulation set point.
Auxiliary Input
Functionality of the auxiliary input is dependent on the configuration of the modes described below. The auxiliary
input is set to the Auxiliary - Off mode by default and can be set to the Auxiliary - Control or Auxiliary - Meter
modes through the HMI or the Windows®communication software. The effect of the auxiliary input on the set point
is displayed in the Windows®communication software.
Auxiliary - Off
In this mode, any signal applied to the analog input will be displayed in the Windows®communication software,
but will have no effect on the set point of the regulator.
Auxiliary - Control
This mode allows modification of the regulation set point by the application of a positive or negative DC voltage
acrossterminalsJ1-1(+)andJ1-12(-).Avoltageupto+/-3Vdcmaybeappliedatthisinput.Thecircuitimposes
a 2260-ohm burden on the DC source.
InAVR1orAVR3regulationmodes,theapplicationofa+/-3Vdcsignalcorrespondstoa+/-30%offsettotheset
point.ThisoffsetisnotlimitedbytheMaximumVoltageAdjusteldoftheWindows®communication software. For
example, with a programmed regulation set point of 480 Vrms, an input of -1 Vdc will result in a –48 Vrms offset to
the set point. Therefore the regulator will regulate to a reference voltage of 432 Vrms.
In the FCR regulation mode, the application of a 0-3 Vdc signal corresponds to a 0-3 Adc field current set point.
For example, the application of a 1.25 Vdc signal will result in a field current of 1.25 Adc.

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: If the DC voltage is removed from the Auxiliary Input, the operating set point will no longer
be modified and the regulator will regulate to the programmed regulation set point.
Auxiliary - Meter
Inthismodetheauxiliaryinputfunctionsasameterwithuser-denedscaling.Avoltageupto+/-5Vdcoracur-
rentof4to20mAmaybeappliedtoterminalsJ1-1(+)andJ1-12(-).Thecircuitimposesa2260-ohmburdenon
the DC source for voltage input. The circuit imposes a 250-ohm burden on the DC source for current input when
ajumperisappliedacrossterminalsJ1-5andJ1-8.Thedefaultscalingis5000countsfora+5Vdcvoltageinput
and 5000 counts for a 20 mA current input. The user provides further scaling through the Windows®communica-
tion software. For example, if the user provides a scale factor of 0.20 units, the metered value corresponding to a
+5 Vdc voltage input will be +100 units. The metered value corresponding to a 20 mA current input will be +100
units.
Load Sharing
The DVR®2000E+ provides a reactive droop compensation feature to assist in the sharing of reactive load during
parallel generator operation. When this feature is enabled, the DVR®2000E+ calculates the reactive portion of
the generator load using the sensed generator output voltage and current quantities and then modifies the volt-
age regulation set point accordingly. A unity power factor generator load results in almost no change in genera-
tor output voltage. A lagging power factor generator load (inductive) results in a reduction of generator output
voltage. A leading power factor generator load (capacitive) results in an increase of generator output voltage.
Droopisadjustableupto10percentwithratedlinecurrentand0.8powerfactor.Theeffectofdroopontheset
point is displayed in the Windows®communication software. The droop feature is enabled and disabled through
theDROOP_OFFcontactinputcircuit(terminalsJ1-10andJ1-4).Whensingle-phasecurrentsensingisused,
the droop function responds to phase-B current. When three-phase current sensing is used, the droop function
responds to the average phase current.
Generator Soft Start
The DVR®2000E+incorporatesanadjustablesoftstartfeaturethatcontrolsthetimeforgeneratorvoltagetoramp
totheregulationsetpoint.ThisfeatureisenabledinAVR3andAVR1regulationmodes.Theramprateisadjustable
from2to120seconds(defaultof3sec)inone-secondincrements.ThisadjustmentismadethroughtheWindows®
communication software and cannot be made through the HMI. The Generator Under Frequency feature is also
active during Generator Soft Start and takes priority in control of the generator voltage.

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DVR®2000E+ PROTECTION FEATURES
The DVR®2000E+ has the protective functions listed below:
 •FieldOverExcitationShutdown
 •GeneratorOverVoltageShutdown
 •GeneratorUnderVoltageShutdown
 •GeneratorVoltageImbalanceShutdown
 •LossofGeneratorSensingShutdown
 •FieldCurrentLimitingShutdown
 •InstantaneousFieldOverCurrentShutdown
 •RegulatorOverTemperatureShutdown
 •GeneratorUnderFrequencyAlarm
 •GeneratorReversePowerFlowAlarm
 •LossofCANCommunicationAlarm
Each fault or alarm condition is displayed through the HMI and the Windows® communication software.
Field Over Excitation Shutdown
The DVR®2000E+hasaFieldOverExcitationShutdownthresholdthatisadjustablefrom0.500to4.000A(default
of3.5A)withatimerthatisadjustablefrom1.0to15.0seconds(defaultof15.0sec).Thissettingismodied
through the Windows®communication software. If field current exceeds the shutdown threshold the timer is start-
ed. The HMI will change from a PYN status to an alarm status with alarm code A008. The Windows®communication
software also displays this alarm condition. If this current does not fall below 90% of the shutdown threshold within
the timer period, the regulator will stop providing excitation to the field and will close the fault output contact. The
HMI will change from an alarm status to a fault status with fault code f008. The Windows®communication soft-
ware also displays this fault condition. This is a latching condition that can be reset by removing power from the
regulator for at least 10 seconds or by momentarily shorting the EXCITATION_OFF circuit. When the DVR®2000E+
is powered up or the EXCITATION_OFF short is removed following a Field Over Excitation Shutdown, the fault
code f.0.0.8. will flash for 15 seconds on the HMI and the fault will be indicated in the Windows®communication
software on the History tab of the Faults and Alarms section of the monitor screen.
Generator Over Voltage Shutdown
The DVR®2000E+hasaGeneratorOverVoltageShutdownthresholdthatisadjustablefrom5%to20%(default
of 20%) over set point voltage with a fixed timer of 0.75 seconds. If generator voltage exceeds the over volt-
age threshold the regulator will stop providing excitation to the field and close the fault output contact. The HMI
will change from a PYN status to a fault status with fault code f013. The Windows®communication software also
displays this fault condition. This is a latching condition that can be reset by removing power from the
regulator for at least 10 seconds or by momentarily shorting the EXCITATION_OFF circuit. When the DVR®2000E+ is
powered up or the EXCITATION_OFF short is removed following a Generator Under Voltage Shutdown, the fault
code f.0.1.3. will flash for 15 seconds on the HMI and the fault will be indicated in the Windows®communication
software on the History tab of the Faults and Alarms section of the monitor screen.

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Revised 06/2011
Generator Under Voltage Shutdown
The DVR®2000E+ has a Generator Under Voltage Shutdown threshold that is adjustable from 5% to 50%
(defaultof25%)withatimerthatisadjustablefrom1.0to15.0seconds(defaultof6.0sec).Ifgeneratorvoltage
drops below the under voltage threshold the timer is started. The HMI will change from a PYN status to an alarm
status with alarm code A012. The Windows®communication software also displays this alarm condition. If generator
voltage stays below the under voltage set point for the duration of the timer, the regulator will stop providing
excitation to the field and close the fault output contact. The HMI will change from a alarm status to a fault status
with fault code f012. The Windows®communication software also displays this fault condition. This is a latch-
ing condition that can be reset by removing power from the regulator for at least 10 seconds or by momentarily
shorting the EXCITATION_OFF circuit. When the DVR®2000E+ is powered up or the EXCITATION_OFF short is
removed following a Generator Under Voltage Shutdown, the fault code f.0.1.2. will flash for 15 seconds on the HMI
and the fault will be indicated in the Windows®communication software on the History tab of the Faults and Alarms
section of the monitor screen. This protection feature is inactive when operating in the FCR Regulation Mode.
Generator Voltage Imbalance Shutdown
The DVR®2000E+ has a Generator Voltage Imbalance threshold that is fixed at 20% and with a timer that is
adjustablefrom1.0to15.0seconds(defaultof12.0sec).Ifavoltageimbalanceisdetected,thetimerisstarted.
In AVR1 regulation mode, generator voltage imbalance protection is disabled. In AVR3 regulation mode, an
imbalance between phases of more than 20% is interpreted as a voltage imbalance. The HMI will change from
a PYN status to an alarm status with alarm code A016. The Windows®communication software also displays this
alarm condition. If the voltage imbalance condition continues for the duration of the timer, the regulator will stop
providing excitation to the field and close the fault output contact. The HMI will change from an alarm status
to a fault status with fault code f016. The Windows®communication software also displays this fault condition.
This is a latching condition that can be reset by removing power from the regulator for at least 10 seconds or by
momentarily shorting the EXCITATION_OFF circuit. When the DVR®2000E+ is powered up or the EXCITATION_
OFF short is removed following a Generator Voltage Imbalance Shutdown, the fault code f.0.1.6. will flash on the
HMI and the fault will be indicated in the Windows®communication software on the History tab of the Faults and
Alarms section of the monitor screen.
Loss of Generator Sensing Shutdown
If sensing input continuity is lost, the regulator will stop providing excitation to the field and close the fault
output contact. The HMI will change from a PYN status to a fault status with fault code f011. The Windows®
communication software also displays this fault condition. This is a latching condition that can be reset by
removing power from the regulator for at least 10 seconds or by momentarily shorting the EXCITATION_OFF
circuit. When the DVR®2000E+ is powered up or the EXCITATION_OFF short is removed following a Loss of
Sensing continuity Shutdown, the fault code f.0.1.1. will flash on the HMI and the fault will be indicated in the Win-
dows®communication software on the History tab of the Faults and Alarms section of the monitor screen.
Note: In AVR1 and AVR3 regulation modes, Loss of Sensing is not enabled until a speed of 850 RPM is detected.

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Field Current Limiting Shutdown
The DVR®2000E+hasaFieldCurrentLimitthatisadjustablefrom0.500to7.500A(defaultof6.5A)withanadjust-
able time delay that has a range of 1.0 to 10.0 seconds (default of 10.0 sec). If load conditions dictate that the field
current exceed the field current limit, the timer is started and the current is limited. The HMI will change from a PYN
status to an alarm status with alarm code A010. The Windows® communication software also displays this alarm
condition. If the current limiting condition continues for the duration of the timer (the default value is 10 seconds),
the regulator will stop providing excitation to the field and close the fault output contact. The HMI will change from
an alarm status to a fault status with fault code f010. The Windows® communication software also displays this
fault condition. This is a latching condition that can be reset by removing power from the regulator for at least 10
seconds or by momentarily shorting the EXCITATION_OFF circuit. When the DVR®2000E+ is powered up or the
EXCITATION_OFF short is removed following a Field Current Limit shutdown, the fault code f.0.1.0. will flash on the
HMI and the fault will be indicated in the Windows® communication software on the History tab of the Faults and
Alarms section of the monitor screen.
Instantaneous Field Over Current Shutdown
The DVR®2000E+ has a nominal Instantaneous Field Over Current Shutdown threshold of 11 Adc. If generator
field current exceeds this threshold, the regulator will stop providing excitation to the field and close the fault
output contact. The HMI will change from a PYN status to a fault status with fault code f009. The Windows® com-
munication software also displays this fault condition. This is a latching condition that can be reset by removing
power from the regulator for at least 10 seconds or by momentarily shorting the EXCITATION_OFF circuit. When
the DVR®2000E+ is powered up or the EXCITATION_OFF short is removed following an Instantaneous Field Over
Current Shutdown, the fault code f.0.0.9. will flash on the HMI and the fault will be indicated in the Windows® com-
munication software on the History tab of the Faults and Alarms section of the monitor screen.
Regulator Over Temperature Shutdown
The DVR®2000E+ has a fixed Regulator Over Temperature alarm threshold and a fixed fault threshold. If the
regulator temperature exceeds the alarm threshold, the HMI will change from a PYN status to an alarm status with
alarm code A007 until the temperature falls below the alarm threshold. If the regulator temperature exceeds the
fault threshold, the HMI will change from an alarm status to a fault status with the fault code f007. The Windows®
communication software also displays this fault condition. This is a latching condition that can be reset by remov-
ing power or by shorting the EXCITATION_OFF circuit from the regulator until the regulator’s internal temperature
has fallen below the fixed fault threshold. When the DVR®2000E+ is powered up or the EXCITATION_OFF short is
removed following a regulator over temperature shutdown, the fault code f.0.0.7. will flash on the HMI and the fault
will be indicated in the Windows® communication software on the History tab of the Faults and Alarms section of
the monitor screen.

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Generator Under Frequency Alarm
When generator frequency drops below the selected knee frequency set point, the voltage set point is automati-
callyadjustedbytheDVR®2000E+sothatgeneratorvoltagefollowstheselectedPU(perunit)V/Hzcurve.When
operating in an under frequency condition, the HMI will change from a PYN status to an alarm status with alarm
code f015. The Windows®communication software also displays this alarm condition. The knee frequency is ad-
justablefrom40.0to70.0Hertz(defaultof59.0Hz)andthebaseslopeofthePUV/Hzcurvemaybemodiedbya
Slope Multiplier from 1.00 to 3.00 (default of 2.00 PU) through the Windows®communication software. If generator
frequency drops below 25 Hz, the regulator will stop providing generator excitation and AC metering.
If generator frequency drops below a detectable level and generator speed is greater than 850 RPM, a short
circuit condition is assumed and the regulator will force current up to the Field Current Limit value (see Field
Current Limiting).
UnderfrequencyV/Hzslopeisdependentuponthekneefrequencyandtheslopemultiplier.Thebaseslopeis
defined according to the following (see Figure 3-2):
 •Forakneebetween40.0and50.0Hz,thebaseslopeis1/50(0.02)Vpu/Hz,
 •Forakneebetween50.1and60.0Hz,thebaseslopeis1/60(0.0167)Vpu/Hz,
 •Forakneebetween60.1and70.0Hz,thebaseslopeis1/70(0.0143)Vpu/Hz,
where Vpu = 1.0 at regulator voltage set point. The base slope is modified by the Slope Multiplier to achieve a
desired voltage roll-off characteristic. See Figure 3-3 for examples.
Figure3-2Volts/HertzSlopesvs.KneeFrequency