46
F O R M
DVR
®
2400 and DVR
®
2500 Digital Voltage Regulator
Installation, Operation and Maintenance Manual
SB0056E
Revised
November 2018
Regal Beloit America, Inc.
100 East Randolph Street
Wausau, WI 54402-8003
www.regalbeloit.com/Brands/
Marathon-Generators
SET POINTS (4)
This panel contains editable fields for configuring the regulator and dis-
plays adjustments to the regulator set points.
Machine Nameplate Rating (4a)
This panel contains the fields for the rated power and rated power factor
of the machine the regulator is regulating. If the rated power selected
matches the default rated power for a given frame size, an indicator will
specify this condition.
Note:
These fields are critical for proper regulation in droop compensation,
VAR and PF regulation modes. For protection features like reverse power
and under excitation, nameplate ratings are used as the basis for these
protections.
Regulation Set Points (4b)
This panel contains the editable fields for selecting the regulator set point
for the various regulation modes and the frequency characteristics of the
regulator.
• Regulator Voltage Set Point is editable in AVR1, AVR3, VAR and PF regu-
lation modes. This value represents the desired voltage at the regulator
voltage sensing terminals, regardless of PT ratio. Offsets from the UP
and DOWN contacts, auxiliary input, droop, step change and/or the CAN
bus are derived from this set point.
• If there are no PT’s and the regulator sensing leads are connected
line-to-line, the desired generator output voltage is identical to the
Regulator Voltage Set Point. If the regulator sensing leads are con-
nected midpoint-to-midpoint of a series wye configuration, the desired
generator output voltage is twice the Regulator Voltage Set Point.
If there are PT’s in the sensing circuit, the desired generator output volt-
age is determined by the multiplication of the PT ratio and the Regulator
Voltage Set Point.
4a
4b
4c
4d
4
