Operation
Owner’s Manual for 50 Hz Air-Cooled Generator Sets
21
Setting the Exercise Timer
This unit is equipped with a configurable exercise timer.
There are two settings for exercise timer:
Day/Time:
Generator set will start and exercise for
period defined, on day of the week and at time of day
specified. During this exercise period, unit runs for
approximately five minutes and then shuts down.
NOTE:
If Wi-Fi is enabled, exercise timer will automati-
cally adjust for Daylight Saving Time.
Exercise frequency:
Exercise frequency can be set to
Weekly, Biweekly, or Monthly. If Monthly is selected, day
of the month must be selected from 1-28. Generator set
will exercise on that day each month. Transfer of loads to
generator set output does not occur during exercise cycle
unless mains power is lost.
NOTE:
The exercise feature will operate only when gen-
erator set is in AUTO mode, and will not work unless this
procedure is performed. If Wi-Fi is NOT enabled, current
date/time must be reset every time 12 volt battery is dis-
connected and then reconnected, and/or when the fuse
is removed.
details exercise information and programming
options for all home standby generator sets.
illustrates engine speed profile during a typical exercise
cycle.
Figure 3-7. Low Speed Exercise Profile
Emergency Stop
All generator sets are equipped with an emergency stop
device. This device is intended to be used in emergency
circumstances where generator set must be shut down
immediately to avoid harm. When emergency stop button
is pressed, generator set will shut down and enter into an
Alarm condition.
•
This device is not intended to be used as the only
safeguard during maintenance or service opera-
tions. Follow appropriate procedures in this manual
to correctly disable generator set during mainte-
nance and service operations.
•
This device is not intended to be a primary means
of shutting down generator set. See generator set
shutdown sequence in
for correct shutdown procedures.
Proceed as follows to reset emergency stop:
1.
Pull out emergency stop button.
2.
Clear alarm by pressing OFF mode button and
then ENTER button on control panel.
3.
The generator set is now in OFF mode. Select
desired operating mode (if required).
Operating Modes
Manual
•
Will not transfer to generator set if mains power is
present.
•
Will transfer to generator set if mains power fails
(below 264 volts for five consecutive seconds; volt-
age and delay time are dealer programmable) after
warm-up.
•
Will transfer back when mains power returns for 15
consecutive seconds. Engine will continue to run
until removed from the MANUAL mode.
Auto
•
Will start and run if mains power fails for five con-
secutive seconds (factory default).
•
Will start an engine warm-up timer (duration varies
when
is enabled).
– Will not transfer if mains power subsequently
returns.
– Will transfer to generator set if mains power is
not present.
•
Will transfer to mains power once mains power
returns (above 350 volts; dealer programmable) for
15 seconds.
•
Will not transfer to mains power unless mains
power returns. Generator set will shut down if OFF
mode button is pressed or a shutdown alarm is
present.
Table 3-1. Generator Set Exercise Characteristics
Generator Set Size
20 kVA
Low Speed Exercise
(Quiet Test)
1,950 rpm
Exercise Frequency
Options
Weekly/Bi-Weekly/Monthly
Exercise Time Length
5 minutes
2600
2800
3000
3200
3400
3600
3800
Low Speed Exercise Profile—50 Hz Generators
1800
2000
2200
2400
0 sec
5 s
10 s
15 s
20 s
25 s
30 s
35 s
40 s
45 s
1 min
5 min
Ex
er
cise Speed (RPM)
Exercise Time
008971