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Basler DECS-200 Instruction Manual
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Basler DECS-200 Instruction Manual

Digital excitation control system
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One DECS-200 Digital Excitation Control System can accommodate 32Vdc, 63Vdc, or
125Vdc applications up to 15Adc. This unique flexibility provides precision control of
generators of virtually any size. The DECS-200 also incorporates a pulse width modulated
power stage, which improves system performances in non-linear load applications.
• Microprocessor-based design
• True RMS sensing, single or three phase
• 32Vdc, 63Vdc, and 125Vdc outputs at 15Adc
• 0.25% Voltage Regulation Accuracy
• Setup from front panel HMI or by PC with Windows
• 20 standard stability selections
• User customizable stability selection
• Paralleling compensation
• Underfrequency compensation or V/Hz Ratio Limiter
• Soft start buildup
• Field Current Regulation Mode (Manual Mode)
• Autotracking between operating modes and between DECS-200 units
(optional)
• Minimum Excitation Limiter (Internally generated or customizable)
• On and off-line Maximum Excitation Limiters
• Stator Current Limiter
• Var and Power Factor Controllers
• Exciter Diode Monitoring (EDM)
• Sequence of Events Recording
• Oscillography
Interface for setting and communicating with Basler products
Request DECS-200-CD
ADDITIONAL INFORMATION
INSTRUCTION MANUAL
Request Publication 9360100990
FEATURES
setup software included
®
(continued on next page)
®
WINDOWS
SOFTWARE
P. O. BOX 269 HIGHLAND, ILLINOIS, U.S.A. 62249 PHONE 618-654-2341 FAX 618-654-2351
DECS-200 Digital Excitation Control System
DECS-200
Digital Excitation
Control System
DESCRIPTION and
SPECIFICATIONS
Pages 2 through 5
FEATURES and
FUNCTIONS
Pages 6 and 7
INTERCONNECT
DIAGRAM
Page 8
FRONT, SIDE VIEWS
and DIMENSIONS
Pages 9 through 11
ORDERING
Page 12
SZM-11
9-10

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Summary of Contents for Basler DECS-200

  • Page 1 One DECS-200 Digital Excitation Control System can accommodate 32Vdc, 63Vdc, or 125Vdc applications up to 15Adc. This unique flexibility provides precision control of generators of virtually any size. The DECS-200 also incorporates a pulse width modulated power stage, which improves system performances in non-linear load applications.

  • Page 2: Specifications

    NOTES: 1) For applications that require the DECS-200 from a source that is already at the regulator's rated power input voltage level, an Inrush Current Reduction Module is needed to minimize the amount of inrush current that may occur. Refer to Accessories (see page 11), regarding ICRM-15.
  • Page 3 Power System Stabilizer. Select one from the configuration menu. • ±10Vdc • 4 to 20 milliamperes OUTPUTS DC OUTPUT POWER: One DECS-200 will accommodate 32, 63, and 125Vdc applications. DECS-200 DECS-200 DECS-200 Rated Continuous Field Voltage...
  • Page 4 EXCITER DIODE MONITOR (EDM) The DECS-200's EDM can detect open and shorted diodes on brushless generators. To do this, the DECS-200 requires the user to input the number of generator poles and the number of exciter poles (both adjustable from 0 to 20 in increments of 2). The open and shorted diode ripple threshold is adjustable from 0 to 100% of field current.
  • Page 5 DECS-200 Digital Excitation Control System SPECIFICATIONS, continued Off-Line High Current Level (instantaneous) set point adjustable from 0 to 30Adc in 0.1Adc increments. Limiting occurs for a time period ranging from 0 to 10 seconds, settable in 1 second increments. Low Current Level set point adjustable from 0 to 15Adc in 0.1Adc increments. Limiting occurs in- definitely.
  • Page 6 PWM power DECS-200 to precisely match the operating characteristics of the stage. It does not rely on the sensing input to DECS-200 and is, prime mover and the loads being applied to the generator. The...
  • Page 7 The SCL operates in all at a later time. DECS-200 alarms can also be used to start the modes except FCR. In FCR mode, the DECS-200 only announces data recorder.
  • Page 8 DECS-200 Digital Excitation Control System CONNECTIONS Figure 1 - Typical AC Connection Diagram...
  • Page 9 (6) LEDs. The LCD is the primary interface because it conveys the majority of the information between the DECS-200 and the user/operator. Front panel pushbuttons allow the user to view menu screens and modify the various screen settings and operating conditions. The LEDs annunciate their respective states.
  • Page 10 DECS-200 Digital Excitation Control System DIMENSIONS Front view Top view Figure 3 - Dimensions...
  • Page 11 • DECS Freewheeling Diode Module required in dual DECS-200 applications, Basler P/N 9293600101. • ICRM-15 Inrush Current Reduction Module is required when energizing the DECS-200 from a source that is already at the regulator's input power ratings. This module minimizes the amount of inrush current that could be seen when power is applied.

  • Page 12: How To Order

    DECS-200 Digital Excitation Control System Figure 6 - BESTwave Oscillography HOW TO ORDER P .A.E. Les Pins, 67319 Wasselonne Cedex FRANCE Tel +33 3.88.87.1010 Fax +33 3.88.87.0808 e-mail: franceinfo@basler.com No. 59 Heshun Road Loufeng District (N), Suzhou Industrial Park, 215122, Suzhou, P .R.China Tel +86(0)512 8227 2888 Fax +86(0)512 8227 2887 Route 143, Box 269, Highland, Illinois U.S.A.