Kohler 14/20RES Panduan Pengoperasian - Halaman 22
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2.7 Exercise
A power system that includes a model RES or RESL
generator set and a model RRT transfer switch can be
set to automatically run the generator set at the same
time and day each week. Exercising the generator set
weekly is required in order to keep the engine and
alternator in good operating condition.
Follow the instructions in this section to start a 20-minute
exercise run and set the exerciser to run at the same
time every 7 days.
Note: These instructions apply to systems that have a
Kohlerr model RRT transfer switch connected to
the RDC/DC controller.
If a model RDT or RSB transfer switch is used with the
generator set, refer to the instructions provided with the
transfer switch to set the exerciser.
2.7.1
Unloaded Exercise with
Diagnostic Test
An unloaded exercise runs the generator set without
signalling the transfer switch to transfer the electrical
load from the utility source to the generator set. To start
an unloaded, ultra-quiet diagnostic test, the control must
be in the AUTO mode with the AUTO LED ON and the
Utility power available.
1. Press the down arrow button (RDC) or exercise
button (DC) to initiate the engine start signal.
2. The generator begins its crank cycles. During the
crank cycles CCn appears on the display. No
button presses are acknowledged during the crank
cycles.
3. EnLd appears on the display once the generator is
running. The generator runs at low speed. The
AUTO LED will be illuminated.
monitors the system during the unloaded exercise
as described in Section 2.7.2, Low Speed
Diagnostics.
4. The generator runs at low speed for 20 minutes and
then shuts down.
Note: If the engine temperature has risen to 104_C
(219_F) or higher, the unit will run at full
speed for 5 minutes to allow engine
cooldown before shutting down.
The exercise time is set to the time the down arrow or
exercise button was pressed. An unloaded, ultra-quiet
diagnostic test will occur at the same time every seven
days.
22
Section 2 Operation
2.7.2
During the unloaded diagnostic test, the controller
monitors the following data.
indicates an unloaded exercise run (EnLd) during the
diagnostics, unless a fault is detected as described
below.
D
Battery voltage. If the controller detects low battery
voltage, a low battery warning is indicated and the
exercise does not start.
D
Generator output frequency and voltage. The
controller verifies that the voltage and frequency are
within acceptable limits for the run speed.
D
ATS connection. The controller verifies that the ATS
interface board, if connected, remains connected. An
ATS Communication Lost fault will be displayed if the
connection is lost.
D
Oil pressure. The controller verifies the engine oil
pressure during low speed operation.
2.7.3
A loaded test or exercise starts the generator set and
then transfers the electrical load from the utility source to
the generator set. The load is transferred back to the
utility source before the generator set shuts down.
To start a loaded full-speed exercise, the control must be
in the AUTO mode with the AUTO LED on and utility
power must be available.
1. Press the down arrow button (RDC) or the exercise
2. The generator begins its crank cycles. During the
The controller
3. EnLd appears on the display once the generator is
4. Press the down arrow button (RDC) or exercise
5. E Ld appears on the display. The AUTO LED is
Low-Speed Diagnostics
Loaded Exercise
button (DC) to initiate the engine start signal.
crank cycles CCn appears on the display. No
button presses are acknowledged during the crank
cycles.
running. The AUTO LED will be illuminated. The
generator is running at low speed with no load.
button (DC) a second time. The generator ramps
up to normal operating speed (typically 3600 RPM)
and the ATS transfers the load.
illuminated.
The generator runs at normal
operating speed for twenty minutes with load.
The controller display
TP-6734 5/10