Status And Notice Digital Displays - Kohler Decision-Maker 3000 Operation

Overvoltage (Each Phase). The fault lamp illuminates
red, the alarm horn sounds, and the unit shuts down
when the voltage exceeds the overvoltage setting for
the preset time delay period. The local display shows
Volts (L1- -L2, L2- -L3, or L3- -L1) High Shutdwn. See
Figure 2-5 for overvoltage specifications.
Note: Overvoltage can damage sensitive equipment in
less than one second.
overvoltage protection on online equipment
requiring faster than 2-second shutdown.
Overvoltage Time Delay
Setting Range Range
105%--135% of
2--10 sec.
nominal
Figure 2-5 Overvoltage Specs
Underfrequency. The fault lamp illuminates red, the
alarm horn sounds, and the unit shuts down when the
frequency drops below the underfrequency setting. The
local display shows Frequency Low Shutdwn. See
Figure 2-6 for underfrequency specifications.
Underfreq. Setting
Ranger Time Delay
10 sec. (short term)
80%--95% of
nominal 60 sec. (long term)
Figure 2-6 Underfrequency Specs
Undervoltage. The fault lamp illuminates red, the
alarm horn sounds, and the unit shuts down when the
voltage drops below the undervoltage setting for the
time delay period. The local display shows Volts (L1- -L2,
L2- -L3, or L3- -L1) Low Shutdwn. See Figure 2-7 for
undervoltage specifications
Undervoltage
Setting Range Time Delay Range
70%--95% of
5--30 sec.
nominal
Figure 2-7 Undervoltage Specs
(Voltage) Regulator Communications Loss.
fault lamp illuminates red, the alarm horn sounds, and
the unit shuts down when the voltage regulator to
controller communication link is disrupted. The local
display shows RegCommLos Shutdwn.
34 Section 2 Operation
Install separate
Overvoltage Default
Setting
120% at 2 sec.
Underfrequency
Default Setting
90% of nominal
Undervoltage
Default Setting
80% of nominal at
10 sec.
The
2.3.7

Status and Notice Digital Displays

Warnings and shutdown faults appear on the digital
display and become part of the event history. Beyond
the warnings and shutdowns there are several events
which also appear on the digital display. Status is an
event that is not an alert but is part of the event history.
Notice is an alert that is not part of the event history.
The controller allows a selected number of changes by
the user for setting up the controller application which
are covered in this section.
Note: Text shown in italics in this section of the manual
represents digital display messages.
Alarm Silence. This status message indicates whether
the alarm horn can be silenced in any button mode
(OFF/RESET--AUTO--RUN) or requires the AUTO
button be pressed first compliant per NFPA 110. Use
SiteTecht software to change this setting. See Section
2.3.8, Controller Resetting procedure, for information on
resetting the system.
The local display shows AlrmSilence: Always when the
alarm horn can be silenced with the master control
buttons in any position (default setting).
The local display shows AlrmSilence: Auto Only when
the alarm horn can be silenced only when in the AUTO
mode. The correct reset sequence requires pressing
the OFF/RESET button, then pressing the AUTO
button, and then pressing the ALARM SILENCE button.
Backup Parameters Loaded. This status message
indicates that backup parameter firmware is now loaded
on the controller using SiteTecht software. The local
display shows Backup Pars Status.
Chicago Code Active. This notice message indicates
that a pass code is required to access the controller.
Use SiteTecht software to set up the feature. The local
display shows Auto Locked Notice.
Emergency Power System (EPS) Supplying Load.
This notice message indicates when the generator set
supplies more than 1% of the rated standby output
current. The local display shows Emerg Pwr On Notice.
Engine Cooldown (Delay) Active.
message indicates that the delay for engine cooldown is
active where the generator set will continue to run after
the OFF/RESET button is pressed.
continue to run until the time delay times out. The local
display shows Eng Cooldown Notice.
This notice
The unit will
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