Shutting The Generator Down While Under Load - Honeywell 10 kW Owner's Manual

Overvoltage (Shutdown Alarm)
If the generator voltage rises above 110% of rating for greater than
three (3) seconds, an alarm will be issued and the unit will shut
down.
If the generator voltage rises above 130% of rating for greater than
0.2 seconds, an alarm will be issued and the unit will shut down.
Clear Alarm
Clear the alarm by setting the AUTO/OFF/MANUAL switch to the
OFF position. Press the ENTER key to unlatch any active fault and
clear the corresponding alarm message.
3.6.2 COMMON ALARM RELAY
The common alarm relay will be activated if there is a shutdown
alarm. It will not activate on warnings or indicate that the AUTO/
OFF/MANUAL switch is in the OFF position. The OFF position will
clear the alarms and the relay. The relay will not be used to indicate
a generator is not activated.
The common alarm terminals are wired to a set of potential-free
(dry) contacts on the Nexus contoller board. These Normally Open
(N.O.) contacts close when an alarm condition occurs and are
used to activate a remote signaling device. The circuit is rated for
a maximum of 130mA at 24 VDC.
3.6.3 WARNINGS
Second Priority (Non-latching) Displayed on the control panel
and the external yellow LED. Warnings automatically clear when
the monitored condition goes away. Warnings are recorded in the
alarm log. Warnings cannot cause shutdowns.
Low Battery
The Control Board monitors battery voltage and displays a warn-
ing if the battery voltage falls below 11.9 volts for one (1) minute.
Warning is automatically cleared if the battery voltage rises above
12.4 volts. Battery voltage is not monitored during the crank
cycle.
Exercise Set Error
If the exercise period becomes corrupted, a warning message
will be displayed. This message will only clear when the exercise
period is reset.
3.6.4 MAINTENANCE ALERTS
Third priority
Maintenance Message
When a maintenance period expires, a warning message will
be displayed. The alert can be reset by pressing the Enter key,
which will cause the user to be prompted to confirm the action.
Resetting will clear the alert and reset the maintenance counters
for all conditions annunciated. The history log will record the alert.
The maintenance counter will not accumulate without battery
power. Once battery power is restored, the set time prompt will be
displayed. The maintenance counters will be adjusted to the new
time and date.
Since most maintenance alerts will occur at the same time
(most have two (2) year intervals), only one will appear on the
display at any one time. Once the first alert is cleared, the next
active alert will be displayed.
3.7 SHUTTING THE GENERATOR DOWN
WHILE UNDER LOAD
To safely stop and start a loaded generator follow these steps.
3.7.1 ISOLATE THE MAIN SERVICE DISTRIBUTION
PANEL
1. At the main service distribution panel, open (turn off) the main
service entrance breaker.
3.7.2 STOPPING THE GENERATOR
1. Turn the Main Circuit Breaker off (Figure 3.6).
2. If generator has a GFCI Outlet and it is being used, turn off the
15 Amp Outlet Breaker (Figure 3.6).
3. Allow the generator to run for 1 minute without load to cool
down.
4. Turn the Auto/Off/Manual switch to the Off position (Figure
3.7).
Figure 3.6 – Open Side Compartment
120V GFCI Outlet
LED Indicator Lights
5. If the generator will be left off for longer than 1 hour without
utility present remove the 7.5 Amp Main Fuse from the control
panel (Figure 3.7). This will prevent the control panel from
running down the battery.
Operation
NOTE:
15 Amp Outlet Breaker
Main Circuit Breaker
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