RDT Transfer Switch Manual

TP-6345 9/1326 Section 2 Installation
Refer to Section 3.5 for a description of the transfer
switch sequence of operation.
Note: If the generator set fails during a test, the ATS will
immediately attempt to transfer to the normal
(utility) source.
Note: Install the front panel(s) or c lose and lock the
enclosure door before starting the test
procedure.
Hazardous voltage.
Will cause severe injury or death.
Only authorized personnel should
open the enclosure.
DANGER
Test Procedure
1. Check the controller LED indicators to verify that
the Utility Source Available and Utility Source
Position indicators are lit. See Figure 3-1.
2. Verify that the generator set master switch is in the
AUTO position.
3. Run a loaded or unloaded test as described below:
a. Loaded Test: Press and hold the TEST button
on the controller for 6 seconds to start a loaded
test. The GEN Source and Position LEDs flash
to indicate that the ATS controller is set up to
transfer the load during the test.
b. Unloaded Test: To start the generator set
without transferring the load, hold the TEST
button for 3 to 5 seconds. The GEN Position
LED flashes to indicate an unloaded test.
4. Verify that the generator set engine starts and the
GEN Available LED flashes.
5. For a loaded test, the switch transfers the load to
the emergency source (generator set). Verify that
the Utility Source Position LED goes out and the
GEN Position LED lights.
6. Press and hold the Test button for 2 seconds to end
the test.
7. The switch transfers the load to the normal (utility)
source. Verify that the GEN Position LED goes out
and the Utility Position LED lights.
Note: The retransfer time delay does not operate
during the test sequence.
8. After the engine cooldown time delay, the
generator set shuts down.
Note: The generator set may have an additional
engine cooldown time delay that causes the
engine to run after the transfer switch engine
start signal is removed.
2.9 Exerciser Setup
The generator set must be in automatic mode for
exerciser operation. Refer to the generator set
operation manual for instructions to put the generator
set in AUTO.
2.9.1 Standard Exerciser
Follow the instructions below to set the exercise timer to
automatically start and run the generator set for
20 minutes every week. The exerciser can be set for
loaded or unloaded exercise runs. The factory settings
for the exerciser are summarized in Figure 2-22.
Exerciser
Parameter Setting
Frequency Weekly
Duration 20 minutes
Unloaded/
Loaded
Unloaded: Hold Exercise button for 3--5
seconds.
Loaded: Hold Exercise button for 6+
seconds.
Note: The optional accessory board allows adjustment of these
parameters. See Section 4.1.5.
Figure 2-22 Exerciser Settings
Pressing and holding the Exercise button will start an
exercise run and set the exercise timer as described
below. The exercise time and day are set to the time that
the Exercise button is pushed. The exerciser will run at
the same time on the same day each week.
While the generator set is running during an exercise
period, the exercise can be ended early by pressing and
holding the exercise button for 2 seconds. Ending the
current exercise period early does not affect future
exercise runs.