Test Mode

The test mode is a procedure to simulate the transfer process with following purpose:

Test normal transfer actions for ATSE-On load test
Test Genset-Off load test
Test Genset-Transfer functions-On load test

Ways to Start Test

There are three ways to start the test:

Through Active Automatic HMI
Through DI using TPCDIO07 module
Through Modbus communication using TPCCOM16 module

There is no priority among the test command from HMI, DI and Modbus. ATSE will act upon receiving the command from any way.

When the test is ongoing, ATSE ignores any other command until receiving the command to exit test.

Command to exit test should be sent through the same way used to start the test. Otherwise ATSE will not respond. For example, if you start the test through DI module, you have to stop the test through DI module as well.

Default Time for Test

Default as unlimited test (no time duration, has to stop the test manually).
If select limited test, the default time duration is 30 s.

Time Range for Test

1–1800 s with steps of 1 s.
Time delay can be bypassed by pressing ESC key in Active Automatic HMI.

Pre-Condition to Start Test Mode

The following conditions are mandatory for the test:

ATSE is in auto mode.
ATSE is in normal position while in U to U application.
ATSE is in alternate position while in U to U application.
ATSE is in normal position while in U to G application.
For U-U application, A source shall be available before test. Otherwise, there will be an alarm.

NOTE: On load test will not be active, if transfer action damages driving system (for example, both sources are out of range, TSE refuses to transfer).

The test will abort in the following conditions：

Source N is abnormal during the T7, T10, T2, T13, and T14 delay.
Interrupted by higher priority signals (refer to priority of control mode A-15).
When not in the T8 and T4 phases, the controller terminates the current test after receiving the stop request.
The Onload test fails.

Off Load Test

The purpose of this function is to check the genset can start without power interruption.
NOTE:
- This test does not check if the switch is able to make the transfer.
- The test is only available with U-G configuration.
The offload test should not be proposed, when the ATSE does not have genset output feature.
This function will only be accessible for product with HMI, as the Test mode default value is On load.
The orders from higher priority will interrupt the test procedure.

On Load Test

The purpose of this function is to execute ATSE transfer (when the source is still valid) to make sure the system is still able to execute the transfer. The U-U and U-G configuration are both available.
When the ATSE receive the testing start request:
- The ATSE shall initiate the transfer to the Alternate source if the Alternate source is in range, and according to the transfer delays (T7, T2…).
- The ATSE shall log a test start event.
Two conditions to return to N source:
- When the ATSE receive the stop request from user.
- When the Test timer is activated, and the test timer is completed.