S
ection
3
Closing a contact across terminals 6U and 7 causes the active operating setpoint to increase. This function is
active as long as the contact is closed.
Closing a contact across terminals 6D and 7 causes the active operating setpoint to decrease. This function is
active as long as the contact is closed.
Note: If power is removed from the DVR
2000E long enough for it to reset, the settings from the remote raise/lower
VAR/Power Factor Control (52J/K) Option
VAR/Power Factor Control (52J/K) Option
Closing a contact across terminals 52J and 52K disables VAR/Power Factor Control. An open contact enables the
2000E(C) to control the generator reactive power in either the VAR or the Power Factor mode. The contact
has no effect when this option is not present. For more information, refer to the Parallel Generator Compensation
Parallel Generator Compensation (52L/M)
Parallel Generator Compensation (52L/M)
Closing a contact across terminals 52L and 52M disables parallel operation. An open contact enables parallel
2000E operates in reactive droop compensation mode.
If the VAR/Power Factor Control option is present, the 52J/K input has priority. Therefore, if the 52J/K and the
52L/M inputs are both open, the system operates in VAR/Power Factor mode.
The communication port provides the interface for user programming (setup) of the DVR
made to the female RS-232 (DB-9) connector with a user-supplied, standard 9-pin cable. The communication port
is optically isolated and is powered from a transformer-isolated supply.
The microprocessor is the heart of the DVR
2000E and performs measurement, computation, control, and
communication functions by the use of its embedded programming and the nonvolatile settings stored in its
Input power is applied to terminals 3 and 4 from the PMG. It is rectifi ed and fi ltered before being applied to the
power amplifi er and the power supply. Input power is single-phase in the range of 120 to 300 Vac at a frequency
The internal switch-mode power supply receives power from the power input stage and supplies power at the
required dc voltage levels to the internal circuitry of the DVR
The power amplifi er receives power from the power input stage and supplies a controlled amount of power to the
exciter fi eld via terminals F+ and F-. The amount of power supplied to the exciter fi eld is based on gating pulses
received from the microprocessor. The power amplifi er uses a solid state power switch to provide the required
power to the exciter fi eld. Power amplifi er output to the fi eld is rated up to 75 Vdc at 3 Adc continuous and 150
Vdc at 7.5 Adc for 10 seconds.
Twelve front panel LED indicators light to indicate various operating modes, protective functions, and adjustments.
Section 2, Human-Machine Interface provides more information about the front panel indicators.
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