65
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
APPENDIX C
QUICK START PROGRAMMING GUIDE
As the regulator is designed to work on many Marathon
®
generators in
many different applications, it is necessary to program the regulator prior to
putting it in service. Please observe the following procedure to program the
regulator through the Human-Machine Interface or HMI:
1. Disconnect all connections to the regulator.
2. Apply power to terminals 3 and 4 of the regulator. There are two
acceptable ways to power the regulator for programming:
3. Press SELECT . The word
SIZE
will appear in the display. Press
ENTER . Use the UP and DOWN arrows to select the
appropriate generator frame size and then press ENTER . The
entered value will flash 3 times to indicate that your selection has
been saved. The display will again read
SIZE
.
4. Press SELECT . The word
REG
will appear in the display. Press
ENTER . Use the UP and DOWN arrows to select the
appropriate regulation mode (
AVR3
for 3 phase Automatic Voltage
Regulation;
AVR1
for single phase Automatic Voltage Regulation or
FCR
for Field Current Regulation) and then press ENTER . The
entered value will flash3 times to indicate that your selection has been
saved. The display will again read
REG
.
5. Press SELECT . The word
STPT
will appear in the display. Press
ENTER . Use the UP and DOWN arrows to select the
appropriate set point (Sensed Voltage for AVR3 and AVR1 regula-
tion modes; Field Current level for FCR regulation mode or
VAR
for
Reactive Power Regulation or
PF
for Power Factor Regulation) and
then press ENTER. The entered value will flash 3 times to indicate
that your selection has been saved. The display will again read
STPT
.
6. Press SELECT . The word
UFRQ
will appear in the display. Press
ENTER . Use the UP and DOWN arrows to select the
appropriate Under-frequency threshold and then press ENTER .
The entered value will flash 3 times to indicate that your selection has
been saved. The display will again read
UFRQ
.
7. Press SELECT . The word
SLOP
will appear in the display. Press
ENTER . Use the UP and DOWN arrows to select the
appropriate under-frequency Slope multiplier and then press ENTER
. The entered value will flash 3 times to indicate that your selection
has been saved. The display will again read
SLOP
.
8. Press SELECT . The word
PR
will appear in the display. Press
ENTER
. Use the UP and DOWN arrows to select the
nameplate Power Rating in kW and then press ENTER . The
entered value will flash 3 times to indicate that your selection has
been saved. The display will again read
PR
.
9. Press SELECT . The word
PFR
will appear in the display. Press
ENTER . Use the UP and DOWN arrows to select the
appropriate Power Factor and then press ENTER . The entered
value will flash 3 times to indicate that your selection has been saved.
The display will again read
PFR
.
10. Press SELECT . The word
PT
will appear in the display. Press
ENTER . Use the UP and DOWN arrows to select the
appropriate Potential Transformer ratio and then press ENTER .
The entered value will flash 3 times to indicate that your selection has
been saved. The display will again read
PT
.
11. Press SELECT . The word
CT
will appear in the display. Press
ENTER . Use the UP and DOWN arrows to select the
appropriate Current Transformer ratio and then press ENTER . The
entered value will flash 3 times to indicate that your selection has
been saved. The display will again read
CT
.
12. Press SELECT . The word
DROP
will appear in the display. Press
ENTER . Use the UP and DOWN arrows to select the ap-
propriate level of droop as a percentage of desired sensed voltage and
then press ENTER . The entered value will flash 3 times to indicate
that your selection has been saved. The display will again read
DROP
.
13. Press SELECT . The word
AU
will appear in the display. Press
ENTER .
Use the UP and DOWN arrows to select the appropriate
auxiliary input mode and then press ENTER . The entered value
will flash 3 times to indicate that your selection has been saved. The
display will again read
AU
.
14. Remove power from the regulator.
15. Complete reconnecting the regulator to the generator.
The regulator is now ready to be placed in service.
a. Reconnect the ground lead and the leads from the capacitor in
the PMG circuit to regulator terminals 3 and 4. This is how the
regulator receives power for normal operation. If using this
method, be sure the generator RPM is between 1500 and 1800
RPM to provide proper input power to the regulator.
b. Connect a 120 Volt AC source to regulator terminals 3 and 4.
This will provide the regulator with enough power to accept
programming, but not enough power for normal operation.
Note:
Ensure F+ and F- terminals on the regulator are
disconnected before powering the regulator for programming.
Before proceeding forward, carefully read and fully understand the warn-
ings, cautions, & safety notice statements in this manual. Failure to do so
could cause severe injury, death, and/or equipment damage.
