Marathon Electric DVR 2000E+ - Page 14

14
Marathon Electric (a division of RBC Manufacturing Corp.) reserves the right to change specications and this manual without notice.
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.