61
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
Check Voltage
Imbalance
threshold and
adjust as
necessary.
Is Voltage
Imbalance
threshold too low?
check
ALARMS AND FAULTS TROUBLESHOOTING FLOWCHART
A016
ALARM
F016
FAULT
Is generator load
balanced?
Check line
currents for
balance with
DVRPortal
TM
software.
Redistribute load,
if possible.
check
have matching
Check PT
nameplates.
check
Inspect exciter per
generator manual
Is generator main
stator OK?
check
Do not put the regulator in
either VAR or PF
regulation mode
Is generator to be
paralleled with
utility?
no
F004
FAULT
Is VAR/PF_OFF
contact input open
prior to breaker
closure?
Synchronize
VAR/PF_OFF
contact input to
open when utility
breaker is closed.
yes
Generator Voltage Imbalance Alarm/Fault
Start Up Fault
yes
yes
no
no
Visual Check / Use
DVRPortal
TM
software
Use DVRPortal
TM
software
Use DVRPortal
TM
software
