40 Chapter 5 UPS Operation Instructions
Liebert
®
ITA 10kVA UPS User Manual
5.4.1 Battery Power-On Self-test
To ensure normal battery connection, the UPS will conduct self-test for the battery connection every time the UPS is
powered on. If the battery is not connected, reversely connected or abnormal, the fault indicator will turn on and the
battery indicator will blink to remind you to check the battery connection. At this moment, the UPS cannot start up.
After the battery connection fault is removed, press and hold the ON/SILENCE key for more than four seconds to
silence the alarm and start up the UPS. The indicator status is shown in Figure 5-4. If the battery voltage is too high,
only the battery indicator blinks.
Figure 5-4 Indicator status
5.4.2 Battery Manual Self-test
The battery manual self-test includes the battery in-position test and the battery state test.
In normal state, when the mains input is normal, the inverter output is not overloaded, meanwhile the single cell
voltage is not less than 12V, press and hold the ON/SILENCE key for four seconds, the battery will start self-test, the
battery indicator will turn on. After the self-test, the battery indicator will turn off. Upon battery faults (battery not
connected or battery failure), the fault indicator will turn on, the battery indicator will blink, as shown in Figure 5-5.
Figure 5-5 Indicator status
5.4.3 Battery Periodic Self-test
You can set the battery self-test cycle through the monitoring software. The self-test cycle respectively is disabled,
three months, six months, nine months and twelve months.
In normal state, when the mains input is more than 176V, the inverter works normally, meanwhile the single cell
voltage is not less than 12V, the battery will conduct the self-test if the set self-test cycle time arrives. When the
battery self-test starts, the battery indicator will turn on; upon battery faults (battery not connected or battery failure),
the fault indicator will turn on, the battery indicator will blink, as shown in Figure 5-5.
