Built-In Tests; Power-On Build-In Test (Pbit); Continuous Build-In Test (Cbit); Initiated Build-In Test (Ibit) - Becker ACU6100 Installation And Operation Manual

Becker Avionics
3.15

Built-In Tests

The ACU61 device has different built-in tests with optical indication of the test results.
•
The tests monitor the system equipment and some internal circuits.
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o PBIT: A system self-test starts after power-on.
o CBIT: A background test routine runs continuously during normal operation.
o IBIT: An additional test can be manually started.

Power-on Build-In Test (PBIT)

Power-on Build-In Test (PBIT)

There are two procedure to continue, if a failure was found:

Continuous Build-In Test (CBIT)

Continuous Build-In Test (CBIT)

There are two procedure to continue, if a failure was found:

Initiated Build-In Test (IBIT)

Initiated Build-In Test (IBIT)

There are two procedure to continue, if a failure was found:
DV64440.03 Issue 09 November 2019
The ACU6100 powers up with the main system power.
•
• The test routine will be started (test time ca. 4 s).
o The test status LED (yellow) is on.
After successful test without failure the test status LED is off.
•
If a failure was found the test status LED (yellow) flashes.
•
• (1) Push at the "TEST" button the failure will be ignored.
o If there is permanent problem inside the system, it will be found by
the continuous self-test routine and indicated again.
(2) Set the "BACK-UP" switch to slaved or emergency mode (details see
•
"Emergency Operation" page 60).
A background test routine runs continuously during normal operation.
•
• If a failure was found the test status LED (yellow) flashes.
• (1) Push at the "TEST" button the failure will be ignored.
o If there is permanent problem inside the system, it will be found by
the continuous self-test routine and indicated again.
• (2) Set the "BACK-UP" switch to slaved or emergency mode (details see
"Emergency Operation" page 60).
• An additional test can be manually started.
Push the key "TEST" (not during transmission).
•
If a failure was found the test status LED (yellow) flashes.
•
(1) Push at the "TEST" button the failure will be ignored.
•
o If there is permanent problem inside the system, it will be found by
the continuous self-test routine and indicated again.
(2) Set the "BACK-UP" switch to slaved or emergency mode (details see
•
"Emergency Operation" page 60).
ACU6100
Operation

Built-In Tests

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