4 Maintenance and inspection
4-1 Self-diagnosis test
BU5002R/BU3002R/BU3002RH
94
4 Maintenance and inspection
4-1 Self-diagnosis test
This test performs a failure diagnosis on the unit and performs a test to check for battery
deterioration.
Use the procedure below to check whether a circuit failure has occurred inside the unit and
whether battery replacement is required.
The self-diagnosis test can be performed either automatically or manually as follows.
■ Self-diagnosis test performed automatically
With the factory default, the self-diagnosis test is automatically executed at the following
times, when the commercial electrical power is turned on and charging of the battery is
completed. No special action is required by the customer.
• When the power switch is turned from OFF to ON
• When the power switch is ON, the test is performed once every 4 weeks that the power is
on
When battery charging for 8 hours has not been completed, the self-diagnosis test once
every 4 weeks is not immediately executed. After charging for 8 hours has been completed,
the test is automatically executed.
■ Self-diagnosis test performed manually
The self-diagnosis test can be performed manually from the LCD menu by selecting
[2.Control] - [Start Function Test].
By executing the self-diagnosis test, backup operation starts automatically. At this time the
buzzer does not sound.
After the test has been completed, the status returns to the normal operational status
automatically.
If an error message is displayed on the LCD window, apply the measures in accordance
with the method of resolution indicated in “3-1-7 How to interpret icons, LED, and buzzer
sounds” (page 66).
The conditions for executing the self-diagnosis test can be selected from the LCD
menu by [3. Settings] - [Battery Settings] - [Battery Test]. At startup/every 4 weeks
(factory default), At startup/every 4 weeks, Disable
* This test can also be performed from the shutdown software.
Refer to the instruction manual of the shutdown software for a detailed explanation.
The instruction manual can be downloaded from the following website.
URL:https://www.oss.omron.co.jp/ups/support/download/ups.html
