TP-6745 7/10 57Section 3 Controller Test and Replacement
Note: Close 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
Automatic Operation Test Procedure
1. Check the controller LED indicators to verify that
the Position N and Source N Available indicators
are lit.
2. Verify that the generator set master switch is in the
AUTO position.
3. Refer to Figure 3-12. From the main screen, press
the Test button. Enter the test password when
prompted and press OK.
4. Press the down arrow button to display Type of Test
Loaded.
5. Press the Start button.
6. Verify that the generator set starts and the Source
E Available LED lights.
7. Verify that the switch transfers the load to Source E:
a. After the preferred-to-standby transfer time
delay, verify that the Position N LED goes out.
b. After the off-to-standby time delay, check that
the Position E LED lights, indicating that the
switch has transferred the load to Source E.
8. Press the End Test button.
9. Verify that the switch transfers the load back to
Source N.
a. After the standby-to-preferred transfer time
delay, verify that the Position E LED goes out.
b. After the off-to-preferred time delay, check that
the Position N LED lights, indicating that the
switch has transferred the load to Source N.
Note: The generator set may have an engine
cooldown time delay that causes the
generator set engine to run after the transfer
switch engine start signal is removed.
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