S
ection
4
Generator Voltage Sensing Inputs
The generator voltage sensing terminals are labeled E1, E2, and E3. A single-phase sensing connection is
obtained by connecting the C-phase sensing input to terminals E2 and E3. Table 4-2 lists the terminal assignments
for three-phase and single-phase generator voltage sensing.
Table 4-1. Generator Voltage Sensing Terminals
Sensing GeneratorPhase Terminal
3-Phase
A E1
B E2
C E3
1-Phase
A E1
C E2, E3
Phase B Line Current Sensing Input
Generator line current is stepped down through a user-supplied current transformer (CT). Secondary current from
that transformer is applied to terminals labeled CT1 and CT2.
Raise and Lower Contact Inputs
Remote setpoint adjustment may be accomplished by connecting a single-pole, double-throw (SPDT), spring
return, center-off switch to the terminals labeled 6U, 7, and 6D. To connect this switch, the center pole, or
common terminal, must be connected to terminal 7. The other two terminals are connected to terminals 6U and
6D. This remote adjust switch may be mounted up to 150 feet away from the DVR2000E when using twisted,
shielded cable.
Var/Power Factor Control Contact Input
A customer supplied enable/disable contact for this function connects to the terminals labeled 52J and 52K.
This function is disabled by a closed contact.
Parallel Generator Compensation
A customer supplied enable/disable contact for this function connects to the terminals labeled 52L and 52M.
This function is disabled by a closed contact.
Analog (Auxiliary) Adjust
CAUTION
If the DC voltage is removed from the Analog (Auxiliary) Input,
the operating setpoint will return to the original value.
This input allows adjustment of the DVR2000E regulation setpoint by the application of a positive or negative
DC voltage across terminals A and B. Voltage up to +3 Vdc may be applied at this input. The circuit induces a
1,000-ohm burden on the dc source. The application of a +3 Vdc signal corresponds to a +30 percent change in
setpoint.
Power Supply Inputs
Power input terminals are labeled 3, and 4.
30
3
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