Marathon DVR 2000E User manual

DVR®2000E
Installation, Operation,
and Maintenance Manual
3
Main Index

INTRODUCTION
This manual provides information concerning the operation and installation of the DVR2000E, Digital Voltage
Regulator. To accomplish this, the following is provided:
• General Information and Specications
• Human-Machine Interface
• Functional Description
• Installation
• Software for Windows Operating System
• Software for the Palm Operating System Platform
• Maintenance and Troubleshooting
WARNING!
DVR2000E presents an electric shock risk. Terminals and heat sinks are live at potentially lethal
voltages. This high voltage may cause electrical shock that could result in injury or death.
To avoid personal injury or equipment damage, only qualied personnel should perform the
procedures presented in this manual.
CAUTION
Meggers and high potential test equipment should be used with extreme care. Incorrect use of
such equipment could damage components contained in the device.
It is not the intention of this manual to cover all details and variations in equipment, nor does
this manual provide data for every possible contingency regarding installation or operation. The
availability and design of all features and options are subject to modication without notice.
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CONTENTS
A table of contents in the front of each section provides detailed information for that section. The sections in this
manual are as follows.
Section 1 General Information ...............................................................................................................3
Section 2 Human-Machine Interface......................................................................................................7
Section 3 Functional Description .........................................................................................................17
Section 4 Installation............................................................................................................................25
Section 5 Marathon-DVR2000E-32 Software for Windows® OS ..........................................................38
Section 6 Marathon-DVR2000E Software for the Palm OS® Platform .................................................68
Section 7 Maintenance and Troubleshooting .......................................................................................85
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Section
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SECTION 1 • GENERAL INFORMATION
TABLE OF CONTENTS
SECTION 1 • GENERAL INFORMATION ....................................................................................................4
GENERAL..............................................................................................................................................4
FEATURES ............................................................................................................................................4
SPECIFICATIONS .................................................................................................................................4
Operating Power..............................................................................................................................5
Generator Voltage Sensing..............................................................................................................5
Generator Current Sensing .............................................................................................................5
Contact Input Circuits ......................................................................................................................5
Common Alarm Output....................................................................................................................5
Field Output .....................................................................................................................................5
AVR Operating Mode.......................................................................................................................5
FCR (Manual) Operating Mode .......................................................................................................5
Var Operating Mode (Optional)........................................................................................................5
PF Operating Mode (Optional) ........................................................................................................5
Parallel Compensation.....................................................................................................................5
Communication Port ........................................................................................................................5
Field Overvoltage Protection ...........................................................................................................5
Field Overcurrent Protection............................................................................................................5
Generator Overvoltage Protection...................................................................................................5
Soft-Start Function ..........................................................................................................................6
Analog (Auxiliary) Input ...................................................................................................................6
Metering...........................................................................................................................................6
Environment ....................................................................................................................................6
Type Tests........................................................................................................................................6
Physical ...........................................................................................................................................6
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Section
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SECTION 1 • GENERAL INFORMATION
GENERAL
The DVR2000E is an electronic, solid-state, microprocessor-based control device. The DVR2000E regulates the
output voltage of a brushless, ac generator by controlling the current into the generator exciter eld. Input power
to the DVR2000E is from a multi-pole, high-frequency, permanent magnet generator (PMG).
The DVR2000E is supplied in an encapsulated package designed for behind-the-panel mounting. The DVR2000E
is held in place by thread-forming screws that thread into its plastic shell. Front panel indicators (LEDs) annunciate
regulator status and system conditions. DVR2000E connections are made through quarter-inch, quick-connect
terminals on the rear panel. A 9-pin DB-9 type connector on the rear panel provides communication between the
DVR2000E and an IBM compatible PC.
FEATURES
DVR2000E units have the following features and capabilities.
• Four control modes: automatic voltage regulation (AVR), manual or eld current regulation (FCR), power
factor (PF) regulation, and reactive power (Var) regulation.
• Programmable stability settings.
• Soft start control with an adjustable time setting in AVR control mode.
• Overexcitation (OEL) limiting in AVR, Var, and PF control modes.
• Underfrequency (volts/hertz) regulation.
• Crowbar circuitry protects the eld.
• Overtemperature protection.
• Three-phase or single-phase generator voltage (RMS) sensing/regulation in AVR mode.
• Single-phase generator current sensing for metering and regulation purposes.
• Field current and eld voltage sensing.
• Four contact sensing inputs for system interface.
• One common output relay for alarm indication and trip functions.
• Six protection functions (overexcitation shutdown, generator overvoltage shutdown, DVR overtemperature
shutdown, loss of generator sensing shutdown, overexcitation limiting and crowbar shutdown).
• Generator paralleling with reactive droop compensation and reactive differential compensation.
• Front-panel human-machine interface (HMI) indicates system and DVR2000E status and gives the ability to
make setting changes at the front panel.
• Rear RS-232 communication port for personal computer communication using MARATHON-DVR2000E-32
Windows® based software for fast, user-friendly, setup and control.
SPECIFICATIONS
DVR2000E electrical and physical specications are listed in the following paragraphs. The adjustment
increments shown apply to the PC software. Adjustment increments for the Front Panel Controls are listed in
Section 2.
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Operating Power
Single-Phase: 180 to 240 Vac
Frequency Range: 200 to 360 Hz
Burden: 350 VA
Terminals: 3, 4
Generator Voltage Sensing
Type: 1-phase/3-phase, 4 ranges,
50/60 Hz
Terminals: E1, E2, E3
Burden: <1 VA per phase
Range 1: 120 Vac (100 to 140 Vac)
Range 2: 240 Vac (200 to 280 Vac)
Range 3: 480 Vac (400 to 560 Vac)
Range 4: 600 Vac
Generator Current Sensing
Type: 1-phase (BØ), 50/60 Hz
Rating: 5 Aac maximum continuous
Burden: <0.1 VA
Terminals: CT1, CT2
Contact Input Circuits
Type: Dry Contact
Interrogation Voltage: 13 Vdc
Terminals
Unit/Parallel Control: 52L, 52M
Raise: 6U, 7
Lower: 6D, 7
Var/PF Enable 52J, 52K
Common Alarm Output
Type: Form A
Rated Load: 7 Aac/7 Adc continuous
Make: 30 Aac/30 Adc, carry for 0.2
sec
Break: 7 Aac/0.1 Adc
Operating Voltage: 240 Vac/250 Vdc maximum
Terminals: AL1, AL2
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  minimum
Terminals: F+, F-
AVR Operating Mode
Adjustment Range: See generator voltage sensing
Voltage Regulation: ±0.25% over load range at rated
power factor and constant generator
frequency.
Temperature Drift: ±0.5% for a 40°C change
Response Time: ≤1 cycle
Underfrequency (V/Hz)
Characteristic: Slope from 1 to 3PU is adjustable in
0.01 increments.
Range: 40 to 65 Hz
Increment: 0.01 Hz
FCR (Manual) Operating Mode
Adjustment Range: 0 to 3 Adc
Increment: 0.01 A
Var Operating Mode (Optional)
Adjustment Range: 100% to –100%
Increment: 0.1%
PF Operating Mode (Optional)
Adjustment Range: 0.6 lead to 0.6 lag
Increment: 0.001
Parallel Compensation
Modes: Reactive Droop and
Reactive Differential (cross-current)*
Droop
Adjustment Range: 0 to 10%
Increment: 0.01%
*Burden can exceed 1 VA if external resistors are added to
the CT circuit.
Communication Port
Interface: Full Duplex RS-232
Connection: DB-9 connector on rear panel
Baud: 4800
Data Bits: 8
Parity: None
Stop Bit: 1
Field Overvoltage Protection
Pickup: 0 -250 Vdc
Time Delay: 15 seconds (xed)
Field Overcurrent Protection
Pickup
Adjustment Range: 0 to 7.5 Adc
Increment: 0.001 Adc
Time Delay
Adjustment Range: 0 to 10 seconds
Increment: 1 second
Generator Overvoltage Protection
Pickup
Range: 105 to 120% of setpoint
Increment: 1.0%
Time Delay
Fixed Setting: 0.75 seconds
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Soft-Start Function
Time Adjust Range: 1 to 120 seconds
Increment: 1 second
Analog (Auxiliary) Input
Voltage Range: -3 Vdc to +3 Vdc
Setpoint Range: -30% to +30% shift
Burden: 1 k
Terminals: A, B
Metering
Accuracy of all metering values assumes 25°C, 50/60 Hz
and less than 20% THD.
Generator Voltage
Range: 10 V to 79 kV
Accuracy: 0.5%
Generator Current
Range: 0.1 to 5,000 A (5 A CTs)
Accuracy: 0.5%
Frequency
Range: 40 to 65 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%
Power (Apparent, Real and Reactive)
Range: 0 to 99 MVA, MW and MVar
Accuracy: 3.0%
Power Factor
Range: -1.0 to –0.6, +0.6 to +1.0
Accuracy: 0.02
Phase Angle
Range: 0 to 360°
Accuracy: 2.0°
Environment
Operating Temp.: -40°C to +70°C (-40°F to
+158°F)
Storage Temp.: -40°C to +85°C (-40°F to
+185°F)
Type Tests
Shock: 20 Gs in 3 perpendicular planes
Vibration: 1 G at 5 to 26 Hz
0.036” double amplitude (27 to 52 Hz)
5 Gs at 53 to 500 Hz
Salt Fog: Tested per MIL-STD-810E
Physical
Weight: 1.52 lb. (690 g)
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Section
2
SECTION 2 • HUMAN-MACHINE INTERFACE
TABLE OF CONTENTS
SECTION 2 • HUMAN-MACHINE INTERFACE .................................................................................... 8
GENERAL....................................................................................................................................... 8
FRONT PANEL CONTROLS AND INDICATORS ........................................................................... 8
INITIAL ADJUSTMENTS ................................................................................................................ 9
MAKING SETTINGS CHANGES .................................................................................................. 10
Front Panel Operation............................................................................................................. 10
Setting Level Indication........................................................................................................... 11
COMMUNICATION PORT ............................................................................................................ 16
Figures
Figure 2-1. DVR2000E Front Panel Indicators....................................................................................... 8
Figure 2-2. DVR2000E Communication Port Location ........................................................................ 16
Tables
Table 2-1. DVR2000E Front Panel Control Descriptions........................................................................ 8
Table 2-2. DVR2000E Front Panel Mode Status Indicator Descriptions ................................................ 9
Table 2-3. DVR2000E Front Panel Adjustment Indicator Descriptions ................................................ 10
Table 2-4. Coarse Voltage Adjust Setting Ranges ............................................................................... 11
Table 2-5. Sensing Mode (Single-phase/Three-phase) Select ............................................................ 11
Table 2-6. Manual Mode (On/Off) Select ............................................................................................. 12
Table 2-7. Manual Mode (If – Limit) Adjustment Ranges ..................................................................... 12
Table 2-8. On-Line Operating Mode (AVR (OFF) / VAR / PF) Select................................................... 12
Table 2-9. VAR Control Adjustment Ranges ........................................................................................ 13
Table 2-10. Power Factor Control Adjustment Ranges ........................................................................ 13
Table 2-11. Underfrequency Adjustment Ranges ................................................................................ 14
Table 2-12. Droop Adjustment Ranges................................................................................................ 14
Table 2-13. Stability Range Selection Settings .................................................................................... 15
Table 2-14. Gain Adjustment Ranges .................................................................................................. 15
Table 2-15. Fine Voltage Adjust Setting Ranges.................................................................................. 15
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Section
2
SECTION 2 • HUMAN-MACHINE INTERFACE
GENERAL
The DVR2000E human-machine interface (HMI) consists of front panel controls and indicators and a rear panel
communication port.
FRONT PANEL CONTROLS AND INDICATORS
DVR2000E front panel controls and indicators consist of 12 red LEDs and three pushbuttons. Figure 2-1 illustrates
the front panel controls and indicators of the DVR2000E. The LEDs indicate control mode and status conditions
and are also used when adjusting settings at the front panel.
Figure 2-1. DRV2000E Front Panel Indicators
Table 2-1. DVR2000E Front Panel Control Descriptions
Control Description
SELECT This pushbutton selects a function for adjustment. Successive presses of the
SELECT pushbutton scrolls through the list of DVR2000E functions to be adjusted.
UP This pushbutton increases the setting level of the function being adjusted.
DOWN This pushbutton decreases the setting level of the function being adjusted.
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Table 2-2. DVR2000E Front Panel Mode Status Indicator Descriptions
Indicator Description
Over Excitation LED #12
This LED blinks rapidly when the Overexcitation Protection feature is enabled
and the eld voltage exceeds the setpoint (80 V default) for 15 seconds. The
DVR2000E will shut down when an overexcitation condition is detected. The Over
Excitation LED blinks for 5 seconds when the DVR2000E is powered up following
an overexcitation condition.
Over Temperature LED
#11
This LED blinks rapidly when the internal temperature of the DVR2000E has
exceeded its limit and causes the unit to shut down.
Under Frequency LED #7 This LED blinks rapidly during an under frequency condition.
Var/PF Active LED #5 This LED blinks rapidly when operating in Var or Power Factor mode.
If – Limit LED #4
This LED blinks rapidly when the eld current exceeds the programmed
overexcitation limit. It will continue to ash until the overexcitation condition
ceases or the overexcitation time delay expires and the DVR2000E shuts down.
The Overexcitation Limiting LED ashes for 5 seconds when the DVR2000E is
powered up following an overexcitation limiting condition.
Manual Mode LED #3 This LED blinks rapidly when operating in Manual mode.
Loss of Sensing LED #2
This LED blinks rapidly when a loss of generator sensing voltage is detected.
The DVR2000E will shut down. The Loss of (Generator) Sensing LED ashes
for 5 seconds when the DVR2000E is powered up following shutdown for loss of
generator sensing condition.
Over Voltage LED #1
This LED blinks rapidly when the generator output voltage exceeds the setpoint
for 0.75 seconds. The DVR2000E will shut down when a generator overvoltage
condition is detected. The (Generator) Overvoltage LED ashes for 5 seconds
when the DVR2000E is powered up following a generator overvoltage condition.
INITIAL ADJUSTMENTS
CAUTION
Read and understand the operation of the individual adjustments before attempting any initial adjustments.
Before starting the generator, the procedures in the following paragraphs should be performed.
Remove the 5 ampere fuse before starting the generator for the rst time. Perform all preliminary engine governor
adjustments without the regulator energized.
After initial governor adjustments are complete, reinstall the 5 ampere fuse and connect only the power input
leads or PMG leads to the regulator. Remove all other regulator connections that may be present and temporarily
insulate them.
Start and run the generator at rated speed. The regulator will perform the self-test and enter a shutdown mode. At
this time, initial adjustments can be made. To do this, step through each adjustment using the “SELECT” button.
For each adjustment, press the “UP” or “DOWN” button to obtain the desired level on the LED bar graph.
After the initial adjustments are made, shut down the generator and connect the remaining regulator leads. The
generator may be started and nal adjustments may be performed on the regulator.
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MAKING SETTINGS CHANGES
The following paragraphs describe how the HMI is used to make setting changes.
Front Panel Operation
The LEDs indicate control mode and status conditions and are also used when adjusting settings at the front
panel. Repeatedly pressing the “SELECT” button steps through the various adjustments, starting with the “Course
Voltage” adjustment and progressing through to the “Fine Voltage” adjustment. The next press of the “SELECT”
button exits the adjustment mode.
When in the adjustment mode, only the adjustment LEDs will be lit. All mode status LEDs will be turned off.
Adjustment LEDs are of two types. The rst type is the LED that indicates the function being adjusted. This LED
blinks slowly (approximately once per second). The second type is the LED that indicates the level of adjustment.
This LED is on steady. The level of adjustment is changed by pressing the “UP” or “DOWN” button. When an
adjustment level LED (on steady) overlaps the function LED (slow blinking), the LED will remain in the slow
blinking mode. If no button is pressed for a period of one minute, the regulator saves the settings and exits the
adjustment mode. If regulator power is interrupted before the automatic save feature is commanded, that level of
adjustment will be lost.
When the regulator is not in the adjustment mode and either the “UP” or “DOWN” button is pressed, the regulator
enters the “Fine Voltage” adjustment mode and changes the generator ne voltage set point by 0.1V. Successive
presses of the “UP” or “DOWN” button shall continue to adjust the ne voltage setting. Pressing the “SELECT”
button causes the regulator to exit the adjustment mode. Mode status LEDs blink approximately twice per
second.
Table 2-3. DVR2000E Front Panel Adjustment Indicator Descriptions
Indicator Description
Fine Voltage
LED #11
This LED blinks slowly when the “Fine Voltage” level is selected for adjustment via the
front panel push buttons.
Gain
LED #10
This LED blinks slowly when the “Gain” adjustment is selected for ne tuning of loop gain
via the front panel push buttons.
Stability Range
LED #9
This LED blinks slowly when selecting the desired “Stability Range” via the front panel
push buttons.
Droop
LED #8
This LED blinks slowly when the “Droop” percentage level is selected for adjustment via
the front panel push buttons.
Under Frequency
LED #7
This LED blinks slowly when the “Under Frequency” knee point is selected for adjustment
via the front panel push buttons.
VAR/PF Adjust
LED #6
This LED blinks slowly when the level of the programmed mode (VAR or Power Factor) is
selected for adjustment via the front panel push buttons (DVR2000EC only).
VAR/PF Select
LED #5
This LED blinks slowly when selecting the programmed mode (VAR, Power Factor, or
none(AVR)) via the front panel push buttons. When in this adjustment mode, LED #1 is
on solid for none(AVR), LED #2 is on solid for Power Factor mode, and LED #3 is on solid
for VAR mode (DVR2000EC only).
Manual Mode Adj.
LED #4
This LED blinks slowly when the “Manual Mode” (eld current) regulation set point is
selected for adjustment via the front panel push buttons.
Manual Mode On/
Off LED #3
This LED blinks slowly when selecting or deselecting “Manual Mode” (eld current
regulation) as the active operating mode via the front panel pushbuttons. When in this
adjustment mode, LED #1 is on if Manual Mode is off, LED #2 is on if Manual Mode is
on.
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1 - 3 Phase
Sensing
LED #2
This LED blinks slowly when selecting single or three phase sensing via the front panel
push buttons. When in this adjustment mode, LED #1 is on if single phase sensing is
selected, LED #3 is on if three phase sensing is selected.
Coarse Voltage
LED #1
This LED blinks slowly when the “Coarse Voltage” level is selected for adjustment via the
front panel push buttons.
Setting Level Indication
Indication of a setting level is provided by the 12 front panel LED indicators. The upper limit of a setting range is
represented by the top LED which is labeled GEN/LAG and MAX. The lower limit of a setting range is represented
by the bottom LED which is labeled MIN and ABSORB/LEAD. The setting range for each LED is summarized in
Tables 2-4 through 2-15. LEDs in the tables are numbered from 1 to 12 with 1 being the lowermost LED (labeled
MIN/ABSORB/LEAD) and 12 being the uppermost LED (labeled GEN /LAG/MAX.
Table 2-4. Coarse Voltage Adjust Setting Ranges
Coarse Voltage – LED 1 Blinking Slowly
Maximum Adjustment Range
Increment: 6 Vac
LED
Increase Decrease
Minimum
Value
Maximum
Value
Minimum
Value
Maximum
Value
12 563 600 558 600
11 521 557 516 552
10 479 515 474 510
9 437 473 432 468
8 395 431 390 426
7 353 389 348 384
6 311 347 306 342
5 269 305 264 300
4 227 263 222 258
3 185 221 180 216
2 143 179 138 174
1 95 137 95 132
Table 2-5. Sensing Mode (Single-phase/Three-phase) Select
Single-phase/Three-phase select – LED #2 Blinking Slowly
LED MODE
12 N/A
11 N/A
10 N/A
9 N/A
8 N/A
7 N/A
6 N/A
5 N/A
4 N/A
3 Three-phase
2 N/A
1 Single-phase
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Table 2-6. Manual Mode (On/Off) Select
Manual Mode On/Off – LED 3 Blinking Slowly
LED MODE
12 N/A
11 N/A
10 N/A
9 N/A
8 N/A
7 N/A
6 N/A
5 N/A
4 N/A
3 N/A
2 ON
1 OFF
Table 2-7. Manual Mode (If – Limit) Adjustment Ranges
Manual Mode Adjust – LED 4 Blinking Slowly
Adjustment Range: 0 to 3 Adc
Increment: 0.01 Adc
LED Minimum Value Maximum Value
12 2.75 3
11 2.50 2.74
10 2.25 2.49
9 2.00 2.24
8 1.75 1.99
7 1.50 1.74
6 1.25 1.49
5 1.00 1.24
4 0.75 0.99
3 0.50 0.74
2 0.25 0.49
1 0 0.24
Table 2-8. On-Line Operating Mode (AVR (OFF)/VAR/PF) Select *
AVR (OFF) / VAR / PF Select – LED #5 Blinking Slowly
LED MODE
12 N/A
11 N/A
10 N/A
9 N/A
8 N/A
7 N/A
6 N/A
5 N/A
4 N/A
3 Var
2 PF
1 AVR
* Var/PF control is available only on DVR2000EC.
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Table 2-9. VAR Control Adjustment Ranges *
VAR Control Adjust – LED 6 Blinking Slowly
Maximum Adjustment Range: −100% (absorb) to +100%
(generate)
Increment: 1.0%
LED Minimum Value † Maximum Value †
12 84 100
11 67 83
10 51 66
9 34 50
8 17 33
7 1 16
6 -16 0
5 -33 -17
4 -49 -34
3 -66 -50
2 -83 -67
1 -100 -84
* Var/PF control is available only on DVR2000EC.
† Minimum and maximum values may differ from the Table 2-9 values if
the value has been changed in MARATHON-DVR2000E-32 software.
MARATHON-DVR2000E-32 software has 0.5 percent resolution compared
to the 1.0 percent resolution of the HMI.
Table 2-10. Power Factor Control Adjustment Ranges *
Power Factor Control Adjust – LED 6 Blinking Slowly
Maximum Adjustment Range: +0.6 (lag) to –0.6 (lead)
Increment: 0.01
LED Minimum Value † Maximum Value †
12 0.66 0.60
11 0.73 0.67
10 0.80 0.74
9 0.86 0.81
8 0.93 0.87
7 1.0 0.94
6 -0.94 -0.99
5 -0.87 -0.93
4 -0.80 -0.86
3 -0.74 -0.79
2 -0.67 -0.73
1 -0.60 -0.66
* Var/PF control is available only on DVR2000EC.
† Minimum and maximum values may differ from the Table 2-10 values if
the value has been changed in MARATHON-DVR2000E-32 software.
MARATHON-DVR2000E-32 software has 0.001 resolution compared to
the 0.01 resolution of the HMI.
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Table 2-11. Underfrequency Adjustment Ranges
Underfrequency Adjust – LED 7 Blinking Slowly
Maximum Adjustment Range: 40 to 65 Hz
Increment: 0.1 Hz
LED Minimum Value Maximum Value
12 63.0 65.0
11 60.9 62.9
10 58.8 60.8
9 56.7 58.7
8 54.6 56.6
7 52.5 54.5
6 50.5 52.4
5 48.4 50.4
4 46.3 48.3
3 44.2 46.2
2 42.1 44.1
1 40.0 42.0
Table 2-12. Droop Adjustment Ranges
Droop Adjust – LED 8 Blinking Slowly
Adjustment Range: 0 to 10%
Increment: 0.25%
LED Minimum Value * Maximum Value *
12 9.25 10.00
11 8.5 9.00
10 7.75 8.25
9 6.75 7.50
8 6.00 6.50
7 5.25 5.75
6 4.25 5.00
5 3.5 4.00
4 2.75 3.25
3 1.75 2.5
2 1 1.5
1 0 0.75
* Minimum and maximum values may differ from the Table 2-12 values if
the value has been changed in MARATHON-DVR2000E-32 software.
MARATHON-DVR2000E-32 software has 0.01% resolution compared to
the 0.25 percent resolution of the HMI.
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Table 2-13. Stability Range Selection Settings
Stability Range Select – LED 9 Blinking Slowly
Adjustment Range per LED: 1
Frame/Poles LED Range Selected
12 N/A
11 N/A
10 N/A
9 N/A
Programmable 8 21
1,000/6 7 7
740/6 6 6
1,000/4 5 5
740/4 4 4
570/4 3 3
430/4 2 2
360/4 1 1
Table 2-14. Gain Adjustment Ranges
Gain Adjust – LED 10 Blinking Slowly
Maximum Adjustment Range:
0.5 to 4.5 kg for AVR and 0 to 100 kg for FCR
When the unit is operating in AVR, PF, and var modes, gain adjustments are
made to AVR kg. When in FCR mode, gain adjustments are made to FCR
kg. Front Panel increments: AVR kg = 0.01 FCR kg = 0.1
LED
Minimum Value * Maximum Value *
AVR FCR AVR FCR †
12 4.17 11.1 4.50 12
11 3.84 10.1 4.16 11
10 3.50 9.1 3.83 10
9 3.17 8.1 3.49 9
8 2.84 7.1 3.16 8
7 2.50 6.1 2.83 7
6 2.17 5.1 2.49 6
5 1.84 4.1 2.16 5
4 1.50 3.1 1.83 4
3 1.17 2.1 1.49 3
2 0.85 1.1 1.16 2
1 0.5 0 0.84 1
* Minimum and maximum values may differ from the Table 2-14 values if the gain value has been changed in
MARATHON-DVR2000E-32 software.
† MARATHON-DVR2000E-32 software allows a maximum FCR kg setting of 1,000 kg. A kg setting of 12 or
more entered in MARATHON-DVR2000E-32 software will be reduced to 12 with the rst push of the HMI
“DOWN” pushbutton when adjusting FCR kg via the front panel.
Table 2-15. Fine Voltage Adjust Setting Ranges
Fine Voltage Adjust – LED #11 Blinking Slowly
Maximum Adjustment Range: -15% to +15%
Increment: 0.1V
The adjustment range for Fine Voltage Adjust is based on the ne
voltage adjustment band setting. The default adjustment range is
–10% to +10%. See Section 5, MARATHON-DVR2000E-32
Software for Windows® OS, Setting Denitions, Setting Adjustments
for information about the Fine Voltage Adjustment Band Setting.
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COMMUNICATION PORT
A communication port is located on the rear panel
and consists of a female RS-232 (DB-9) connector.
The communication port serves as an interface for
programming (setup) of the DVR2000E. Figure 2-2
illustrates the location of the communication port.
Programming requires a standard 9-pin serial
communication cable connected between the
DVR2000E and an IBM-compatible PC or handheld
computer operating with MARATHON-DVR2000E-32
software. MARATHON-DVR2000E-32 is a Windows®
98/NT based communication software package that is
supplied with the DVR2000E. A detailed description
of MARATHON-DVR2000E-32 software is provided in
Section 5, MARATHON-DVR2000E-32 Software.
Figure 2-2. DVR2000E Communication Port Location
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SECTION 3 • FUNCTIONAL DESCRIPTION
TABLE OF CONTENTS
SECTION 3 • FUNCTIONAL DESCRIPTION ............................................................................................18
INTRODUCTION..................................................................................................................................18
DVR2000E FUNCTION BLOCKS ........................................................................................................18
Analog Inputs.................................................................................................................................18
Generator Voltage ...............................................................................................................................19
Phase B Line Current..........................................................................................................................19
Field Voltage (VFIELD)...........................................................................................................................19
Field Current (IFIELD) ............................................................................................................................19
Analog (Auxiliary) Input .......................................................................................................................19
Contact Input Circuits ....................................................................................................................19
Raise ...................................................................................................................................................20
Lower...................................................................................................................................................20
Var/Power Factor Control (52J/K) Option ............................................................................................20
Parallel Generator Compensation (52L/M)..........................................................................................20
Communication Port ......................................................................................................................20
Microprocessor ..............................................................................................................................20
Power Input Stage .........................................................................................................................20
Power Supply.................................................................................................................................20
Power Amplier Stage ...................................................................................................................20
Front Panel Indicators....................................................................................................................20
Front Panel Switches.....................................................................................................................21
Relay Output..................................................................................................................................21
DVR2000E OPERATING FEATURES..................................................................................................21
Operating Modes ...........................................................................................................................21
Automatic Voltage Regulation Mode....................................................................................................21
Manual Mode.......................................................................................................................................21
Var Control Mode (Optional)................................................................................................................21
Power Factor Control Mode (Optional) ................................................................................................21
Reactive Droop Compensation......................................................................................................22
Underfrequency .............................................................................................................................22
Generator Underfrequency..................................................................................................................22
Engine Unloading................................................................................................................................22
Protection ......................................................................................................................................22
Overexcitation Shutdown (Field Voltage).............................................................................................23
Generator Overvoltage Shutdown.......................................................................................................23
DVR Overtemperature Shutdown........................................................................................................23
Loss of Generator Sensing Shutdown.................................................................................................23
Overexcitation Limiting (Field Current) ................................................................................................23
Crowbar Shutdown..............................................................................................................................24
Generator Soft Start ......................................................................................................................24
Figures
Figure 3-1. Simplied Block Diagram .........................................................................................................18
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Section
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SECTION 3 • FUNCTIONAL DESCRIPTION
INTRODUCTION
This section describes how the DVR2000E functions and explains its operating features. To ease understanding,
DVR2000E functions are illustrated in the block diagram of Figure 3-1. A detailed description of each function
block is provided in the paragraphs under the heading of DVR2000E Function Blocks.
DVR2000E operating features include four operating modes, four protective functions, startup provisions, reactive
droop compensation, underfrequency compensation, and an auxiliary analog input. A detailed description of each
operating feature is provided in the paragraphs under the heading of DVR2000E Operating Features.
Figure 3-1. Simplied Block Diagram
DVR2000E FUNCTION BLOCKS
The following paragraphs describe each of the function blocks illustrated in Figure 3-1. The function of each block
is explained along with the operation of all function block inputs and outputs.
Analog Inputs
Six analog voltage and current inputs may be sensed and brought to the DVR2000E input.
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