Battery Maintenance Test Procedures; Battery Capacity Test Procedures; System Test Procedures - Emerson Liebert APM 90 User Manual

5.4 Battery Maintenance Test Procedures

The battery maintenance test includes periodic test and manual maintenance test. The battery discharges up
to 20% of the total battery capacity. The time interval of the periodic test is set through the background
software. The manual maintenance test is initiated through the LCD menu on the operator control and display
panel, and it requires password verification.
The procedures for the manual maintenance test are as follows:
1. At the Command menu, press the F3 (up) or F4 (down) key to select the Battery maintenance test menu.
Press the F5 (enter) key to confirm.
2. Upon screen prompt, press the F3 (up) and F4 (right) keys to enter the password. Press the F5 (enter) key to
confirm.
3. Wait until the battery test is finished.
When the battery maintenance test is finished, the UPS will transfer to normal mode, and the battery is
charged.
4. Stop the battery test.
During battery maintenance test, you can stop it be selecting the Stop testing option on the Command menu.

5.5 Battery Capacity Test Procedures

The battery capacity test is to test the battery activity, check the battery residual capacity and calculate the
battery autonomy time. In battery capacity test, the battery continuously discharges to the battery
undervoltage shutdown threshold. When the capacity test is finished, the system updates the battery curve
chart.
The battery capacity test is initiated through the LCD menu on the operator control and display panel, and it
requires password verification. The procedures are as follows:
1. At the Command menu, press the F3 (up) or F4 (down) key to select the Battery capacity test menu. Press
the F5 (enter) key to confirm.
2. Upon screen prompt, press the F3 (up) and F4 (right) keys to enter the password. Press the F5 (enter) key to
confirm.
3. Wait until the battery test is finished.
When the battery capacity test is finished, the system will automatically update the battery data and actual
battery capacity, which are used to calculate the battery autonomy time.
4. Stop the battery test.
During battery capacity test, you can stop it be selecting the Stop testing option on the Command menu.

5.6 System Test Procedures

The system test is to check the LED indication on the operator control and display panel. It lasts five seconds. It
is initiated through the LCD menu on the operator control and display panel and requires password
verification.
The procedures for the system test are as follows:
1. At the Command menu, press the F3 (up) or F4 (down) key to select the System test menu. Press the F5
(enter) key to confirm.
2. Upon screen prompt, press the F3 (up) and F4 (right) keys to enter the password. Press the F5 (enter) key to
confirm.
3. Wait until the system test is finished.
Liebert APM 90 Integrated Modular UPS User Manual
Chapter 5 Operating Instructions 41